Regenerative DC
Power Supply
What is a regenerative DC(bidirectional) power supply?

Regenerative DC Power Supply(bi-directional
systempower supply)

electrification

exertion(exertion)

NT-AA-50KE-L

It is a power supply that combines a converter that converts AC power supplied
from the grid (e.g., cogeneration) into DC power and an inverter that conversely
converts DC power into AC power that is supplied (regenerated) to the grid. The
power from the grid can be recharged in the battery and reused by equipmenton the premises that regenerates the power to the grid. Our regenerative DC(bidirectional) power supplies achieve a conversion efficiency of over 90%,
enabling effective use of power.
P.4 Regenerative DC Power Supply

What is a regenerativeelectronic load?

electricaldischarge

phylogenetic
regeneration(regeneration)reuse

On-site equipment
elevator

rapid charger■ Various interfaces
Standard Features( internal
regeneration）

air
conditioning

Regenerative load

Conventional electronic loads simulate electric power by converting the power tobe consumed into heat. As the capacity of these loads increased, the amount ofheat energy converted increased, and air conditioning equipment was required
to cool the heat energy, which had a negative impact on the environment.
Regenerative electronic load converts the power to be consumed into AC power
to be supplied to the grid (regeneration) instead of heat, thus reducing the sizeby reducing the heat conversion unit and creating energy through regenerative
power (supplying AC power to the grid), leading to a reduction in environmental
impact.
Our lineup of regenerative electronic loads includes both AC and DC loads as wellas DC-only loads. AC loads can be used as RLC simulation loads because thepower factor can be varied from 0 to ±1.

P.12(AC200V)

batteryload(regeneration)system(AC200V)

systemic
regeneration■ Large 3.5-inch LCD panel andIntuitive operation panelreuse( in-flight regeneration）■ Emergency stop button as
standard equipment

Supply only the electricity
needed for the shortage

Regenerative DC electronic loads andregenerative AC electronic loads

From new energy to V2L and infrastructure equipment for
automotive electronics
Highly flexible test environments can be built■ Expandable up to 250 kW (5 units)■ Simple power supply function andPower and Regenerative
SwitchingFunction■ MPPT mode convenient for PV panelevaluation (Factory option)

HVDC
320V ～ 380VWind power
generation

Fuel cell

Power conditioner

Solarbattery

Rapidcharger

Servers
Data Center■ Compliant with grid-connection regulations■ Regenerative efficiency of 90% or higher■ Low in accordance with CISPR Class A
Low power noise■ Supports 3-phase 3-wire 400 V grid input■ Three-phase 3-wire 200 V

Railroads
Infrastructure

2 ｜ Ene-Phant series

Motor Driver(Inverter)

UPS

Power generator

Battery

Electric vehicle(EV)system input also available
Available as factory option
Regenerative DC Power Supply ｜ 3

Regenerative DC Power Supply
Ene-phant series

Expandable up to ± 250 kW with standard products
Maximum voltage of 1500V and maximum current of ±1500A can be extended by combination with standard
models. Our strength as a standard product (quality, price, and support) is extended to large capacity models.

50kW bidirectional model - Provides increased capacity through expansion
Up to

15
expansion
combination

350V

750V

1500V

Regenerative DC Power Supply

DC
DC
1500V 750V

switching
3
DC
350V Model

Ene-phant Series

The Ene-phant series of regenerative DC power supplies aremodels that perform power operation as a power source andregenerative operation as an electronic load in a single unit.

emergency

50kW large capacity, yet space-saving with a width of 600mm
and height of 1900mm. 350V, 750V, and 1500V in total, 5 inparallel each for 3 different voltage models, The system can be
operated bidirectionally with a maximum of ±250 kW, amaximum voltage of 1500 V, and a maximum current of ±1500
A. It can be used for a wide range of applications from battery
simulation, charge-discharge evaluation, motor and inverter
R&D to outgoing tests.

boosterstop■ Order Information
Model
350V type

Name of product

NT-AD-50KD-B

Regenerative DC power supply 50kW, 350V, ±300A

NT-AD-50KD-B x2
NT-AD-50KD-B x3
NT-AD-50KD-B x4
NT-AD-50KD-B x5
NT-AD-50kD-B/REC*1
750V type
NT-AD-50KH-B
NT-AD-50KH-B x2
NT-AD-50KH-B x3
NT-AD-50KH-B x4
NT-AD-50KH-B x5
NT-AD-50kH-B/REC*1
1500V type
NT-AD-50KO-B
NT-AD-50KO-B x2
NT-AD-50KO-B x3
NT-AD-50KO-B x4
NT-AD-50KO-B x5
NT-AD-50kO-B/REC*1
Common Options
TCP
SCI
AX-OP01
AX-OP02
AX-OP03
AX-OP13

Regenerative DC power supply 100kW, 350V, ±600A
Regenerative DC power supply 150kW, 350V, ±900A
Regenerative DC power supply 200kW, 350V, ±1200A
Regenerative DC power supply 250kW, 350V, ±1500A
NT-AD-50kD-B Inspection Report
Regenerative DC power supply 50kW, 750V, ±200A
Regenerative DC power supply 100kW, 750V, ±400A
Regenerative DC power supply 150kW, 750V, ±600A
Regenerative DC power supply 200kW, 750V, ±800A
Regenerative DC power supply 250kW, 750V, ±1000A
NT-AD-50kH-B Inspection Report

100kW

150kW

200kW

250kW

NT-AD-50KD-B
×1

NT-AD-50KD-B
×2

NT-AD-50KD-B
×3

NT-AD-50KD-B
×4

NT-AD-50KD-B
×5

±300A

±600A

±900A

±1200A±1500A

NT-AD-50KH-B
×1

NT-AD-50KH-B
×2

NT-AD-50KH-B
×3

NT-AD-50KH-B
×4

NT-AD-50KH-B
×5

±200A

±400A

±600A

±800A

±1000A

NT-AD-50KO-B
×1

NT-AD-50KO-B
×2

NT-AD-50KO-B
×3

NT-AD-50KO-B
×4

NT-AD-50KO-B
×5

±100A

±200A

±300A

±400A

±500A

regenerationLAN

RS-232C

50kW

Price

Please contact usSpace-saving and contributes
to a smaller footprint

Industry-leading
regenerative efficiency of 90% or higher

The 50kW stand-alone unit has been reduced by 150mm inwidth and 100mm in depth from the previous model,
resulting in an installation area reduction of approximately
0.31m2 as a footprint ratio. Both the area and volume ratios
contribute to space savings of approximately 30%, allowing
for flexible installation.

High efficiency of over 90% (at rated load). Furthermore, aregenerative efficiency of 80% or higher is achieved when
the rated power is 15% or more of the rated power. Highly
efficient regeneration is possible over a wide range of load
power.

Reduction by 150mm

100mm reduction

Please contact us

input
input
input
input

Regenerative DC power supply 50kW, 1500V, ±100A
Regenerative DC power supply 100kW, 1500V, ±200A
Regenerative DC power supply 150kW, 1500V, ±300A
Regenerative DC power supply 200kW, 1500V, ±400A
Regenerative DC power supply 250kW, 1500V, ±500A
NT-AD-50kO-B Inspection Report

Please contact us

Traceability by Product*2
Standard Instrument Test Report*2
Master-slave connection 1m cable
Master-slave connection 3m cable
Voltage and current monitoring options
Optional three-phase 3-wire 200V conversion on the grid side

Please contact us

Load input power (kW)NT-AA10KE-L-Load Input
Regenerative Power Eﬃciency Characteristics*1：In the case of multiple-unit configurations, inspection reports are required for the quantity of units.
*2 : An inspection report must be ordered.

4 ｜ Ene-Phant series

Regenerative DC Power Supply｜ 5

Regenerative DC Power Supply
Ene-phant series

Expandable up to 5 units in parallel up to 250kW! High voltage and high current
can be achieved by series-parallel combination

Oscilloscope-like operability

The same model can be expanded up to two units in series connection (only one 1500 V model) and up to five units in parallel
connection, just like batteries. Flexible configurations can be realized, from capacity expansion by combining multiple units toindividual operation of multiple units, depending on the stage of evaluation and testing, taking advantage of the master-slave
dual-use model.
NT-AD-50KD-B (350V type)
Number of possible series-parallel

350V type
Up to 5 in a row (250kW) or 1 in a row (100kW)

NT-AD-50KH-B (750V type)
Number of possible series-parallel

Number of NT-AD-50K0-B (1500V type)possible in parallel

750V type
Up to 5 in-line (250kW) or 1 in-line (100kW)

1500V type
Up to 5 lines per line (250kW)

In pursuit of ease of use, the button layout and operability of an oscilloscope are adopted.

Large rotary knob for easy
up/down of current
Easy-to-read 3.5-inch

700V

❶
300A

1500V

parallel connection
5 parallel
350V/1500A/250kW

❷

❸

❹

600A

900A 1200A

❺
1500A

❶

750V

❶
200A

parallel connection
5 parallel
750V/1000A/250kW

❷

❸

❹

❺

400A

600A

800A

1000A

Example: Series operation(when high voltage is required)

Example: Parallel operation(when large current is required)

1500V

Large color LCD

parallel connection
5 parallel
1500V/1000A/250kW

two series
1500V/200A/100kW❷
series connection❶

series connection

350V

❷

two series
700V/300A/100kW

❶

❷

❸

❹

❺

100A

200A

300A

400A

500A

10-degree tilt
to the key tops
Improved operability
with 10-degree slant
on key tops

One-touch memory
function for recalling
setting values
Memory function for
one-touch recall of
settings

Example: Individual operation(when multiple units need to be operated)

Self-illuminated load ON/OFF
buttonOscillo-like inverted L-sequence keys can also be usedas numeric keypad for numerical input.

Regenerative power supply noise Compliant
with CISPR Class A
DUT

DUT

DUT

DUT

DUT

Emergency stop button

Regenerative power noise complies with Class A. Low noise
so that other devices are not affected by regenerative power
noise, such as malfunctions.

Compliant with grid connection regulations

Seamless bidirectional ±current operation is possible from

Equipped with grid monitoring and protection functions
compliant with grid interconnection regulations, it has
the same monitoring and protection functions as general
power conditioners on the market, allowing energy to
be circulated safely and without waste. The various gridmonitoring functions can be set to any desired value.

0V without range switching.

High speed operation
The current response speed is as fast as 10msec or less, andseamless switching between power (drive: power supply)
and regeneration (absorption: load) is realized. Therefore,
there is no overshooting or undershooting of the current,
and the EUT can be used safely without unexpected stress.
Rising current waveform (at 200A DC 200V input)

System monitoring
OCR
Overcurrent relay
OVR
Overvoltage relay
UVR
Undervoltage relay
OFR
Overfrequency relay
UFR
Under-frequency relay
Stand-alone operation Active method (frequency shift method)
detection function
Passive method (voltage phase jump method)

Adopts electrical insulation with transformer※DC200V input

Three-phase 3-wire 200 V input voltage selection
on the grid side(Factory option: AX-OP13)5msec or less200A

6 ｜ Ene-Phant series

Electrical isolation between the power supply (electronicload) and the system is provided by a large transformer.
Safe and secure design.

The input voltage can be changed to the standard
3-phase 3-wire 200V used in offices and factories. Also,
3-phase 4-wire 220V, 230V, etc. are available upon special
order.
(Compatible models: NT-AD-50KD-B, NT-AD-50KH-B, NTAD-50KO-B)[dB(μV )]<CISPR11 Group1 Class A>
Limit(QP)
Limit(AV)<160316_CE018_Final>
Scan(L1,PK)
QP Level-(L1)
C-AV Level-(L1)

110
100
90
80
70
Level

Seamless bidirectional and 0V operation

Equipped with an emergency stop button, which isindispensable in the car electronics industry. The gate of
the power line is blocked (forced open by conductor) when
operating. It is guarded to prevent malfunction and can be
externally controlled (DI input).

60
50
40
30

Emergency stop button layout

20
10
0
0.150

0.500

1.000

5.000

Frequency

10.00030.000[MHz]

Body protection function
The main body of the electronic load device is equipped

Control Interface

with 8 types of protection functions for safe test operation.

LAN (Ethernet), RS-232C, and PLC interfaces are commonly
equipped as standard. Remote control including automationfrom a host PC is possible.

Interface
RS-232C

LAN

DI/DO

AI/AO

〇

〇

Ｏ

Ｏ

Safeguard
OVP(INT)

internal overvoltage protection

OTP(INT)Internal overheat protection

OCP

Overcurrent protection

OVP

Overvoltage protection

LVP

Overvoltage protection

OPP

Overpower protection

OFP

Overfrequency protection

LFP

Low frequency protection

Regenerative DC Power Supply｜ 7

Regenerative DC Power Supply
Ene-phant series■ (technical) Specification
Model
Basic functionality■ Specifications (continued)
NT-AD-50KD-B

NT-AD-50KH-B

NT-AD-50KO-B

Output range

Rated value(engineering)

Constant voltage(CV) mode

Constant current(CC) mode

Constant Power(CP) mode

Rated power
Rated voltage
Rated current
Minimum operating voltage
Ripple current
Regenerative efficiency
Voltage setting range
Setting resolution
Accuracy
Response Time
Transitional Recovery Time
Switching function between
power and regeneration
Current setting range
Setting resolution
Accuracy
Response Time
Switching function between
power and regeneration
Power setting range
Setting resolution
Accuracy
Response Time
Switching function between
power and regeneration

Soft start
Measurement Division
Voltage measurement range
Voltage
Measurement resolution
measurement
Measurement accuracy
Current measurement range
Current
Measurement resolution
measurement
Measurement accuracy
Power measurement range
Power
Measurement resolution
measurement
Measurement accuracy
limit function
Voltage setting range
Voltage Limit
resolution
Operation at Limit
Current setting range
Current Limit
resolution
Operation at Limit
Power setting range
Power Limit
resolution
Operation at Limit
Safeguard
Emergency stop
Overvoltage protection
Overcurrent protection
Overpower protection
Overheat Protection
Undervoltage protection

8 ｜ Ene-Phant series

50kW
350V
750V
1500V
± 300A± 200A± 100A
0V
Within 4Ap-p (switching frequency component)More than 90% of the maximum (when framed into the output force)
0 ～ 350V
0 ～ 750V
0 ～ 1500V
0.1V± 0.3% of F.S.
Within 50msec (10% to 90%)
Within 20msec
Automatic switchover
0 ～ ± 300A
0.3A

0 ～ ± 200A
0.25A
± 0.3% of F.S.
Within 10msec (10% to 90%)0 ～ ± 100A
0.125A

Analog Output
Current monitor

Manual switching
0 ～ ± 50kW
20W
± 0.5% of F.S.
Within 10msec (10% to 90%)

Output impedancePort (e.g. LAN port)

Communication Specifications
Connector
Data rate
RS-232C
Connector
General Specifications
LAN0, 1, 2, 5, 10sec
0.0 ～ 750.0V
0.1V± 0.3％ of meas． ± 1V
0.0 ～ ± 200.0A
0.125A± 0.3％ of meas. ± 0.25A
0 ～ ± 50kW
20W
± 0.5％ of meas. ± 62.5W

Monitor output

480V

960V
-2V

1920V

82Arms
445 to 475Vrms / Resolution 10Vrms / Detection time 0.1 to 2.5sec
325 to 355Vrms / Resolution 10Vrms / Detection time 0.1 to 2.5sec
50.0 to 65.9Hz / Resolution 0.1Hz / Detection time 0.0 to 9.9sec
45.0 to 60.9Hz / Resolution 0.1Hz / Detection time 0.0 to 9.9sec
Voltage phase jump detection / Detection level 2 to 10°/ Enable/Disable selectable
Reactive power fluctuation method / Enable/disable selectable
Correction for voltage drop on power lines (up to 10 V one way)
Rear terminal block (M6)
5 units
DC 350V ± 1500A 250kW
DC 750V ± 1000A 250kW
DC 1500V ± 500A 250kW
2 units (not parallel when connected in series, factory option)
Cannot be connected in series
DC 700V ± 300A100kW
DC 1500V ± 200A100kW
Photocoupler input（DC12 ～ 24V/8mA）
Photo-coupler output open collector（DC24V/10mA, 1mA recommended）
Photocoupler input（DC12 ～ 24V/8mA）
Photocoupler input（DC12 ～ 24V/8mA）
0 ～ 10V
CC, CC limit, CV, CV limit, CP, CP limit
0 ～ 10V / 0 ～ 500V
0 ～ 10V / 0 ～ 1000V
0 ～ 10V / 0 ～ 1500V
50 Ω
BNC / Isolated output-10 ～ 10V /-10 ～ 10V /-10 ～ 10V /-300 ～ 300A
-200 ～ 200A
-100 ～ 100A
50 Ω
BNC / Isolated output

Interface

Manual switching

0.0 ～ 350.0V
0.1V± 0.3％ of meas． ± 1V
0.0 ～ ± 300.0A
0.15A± 0.3％ of meas. ± 0.3A

Internal overvoltage protection
Reverse connection alarm
System protection function
Overcurrent protection
Overvoltage protection
Undervoltage protection
Overfrequency protection
Insufficient Frequency Protection
Stand-alone operation detection passive
Stand-alone operation detection active
Other Functions
FeatureRemote sensing
EXT IN terminal (rear panel)
Maximum number of parallel units
Parallel run
Maximum rated voltage/current/power
Maximum number of in-line units
Serial operation
Maximum rated voltage/current/power
External control signal Output/Input
Load on/off
Protection/alarm status
Digital I/O
Operation mode setting
Emergency stop
Input voltage
Analog input
Setting items
Monitor output
Analog Output
Output impedance
Voltage monitor
port (e.g. LAN port)

0.0 ～ 1500.0V
0.2V± 0.3％ of meas． ± 2V
0.0 ～ ± 100.0A
0.0625A± 0.3％ of meas. ± 0.125A

0 ～ 360V
0 ～ 760V
0 ～ 1520V
1V
1V
2V
Alarm is triggered at the set value of the limit. Output stops.
0 ～ ± 300A
0 ～ ± 200A
0 ～ ± 100A
0.3A
0.25A
0.125A
Clip the current at the set value of the limit
0 ～ ± 50kW
20W
Clip power at limit setpoints
Emergency stop of the equipment by pressing the emergency stop button on the rack
390V
780V
1560V
330A
220A
110A
51.5kW
90℃（Switching element temperature）-2V

Power supply

Input Rating

power factor
Input power

At maximum load
At no load
Maximum load (at AC400V)
Maximum load (at AC360V)
Recommended breaker
Power output terminal block
System Entry Force Terminal Block
Remote sense terminal block
Main body only
Not including protrusions
Operating environment
Operating temperature
Operating humidity
Storage temperature
Storage Humidity
Advanced

Input
Terminal block
Screw diameter
WeightDimensions

Environmental
condition

Cooling method
Withstand voltage
Withstand voltage
CompliantStandards

Between input and output
Between input and FG
Between input and FG
EMC Standards
CE
Safety standards

IEEE 802.3
RJ45
10Base-T 100Base-TX
D-sub 9pin
System side: 3-phase 3-wire 400 ± 40 V, 50 Hz ± 2 Hz or 60 Hz ± 2 Hz
Overvoltage category II
0.9 or higher
800 VA or less73Arms
89ArmsAC 100A
M12
M10
M6
M6
M6
Approx. 750 kg or less
W600 × H1977.5 × D900mm
In-house use
0 ℃～ +40 ℃
20 %rh to 85 %rh (no condensation)-20 ℃～ +60 ℃
20 %rh to 85 %rh (no condensation)2000 m or less
Forced air cooling by fan
No abnormality after application of 1800 VAC for 1 minuteNo abnormality after application of 1800 VAC for 1 minute
DC500 V, 30 M Ω min.
EN 61000-3-2
Low Voltage Directive 2014/35/EU
IEC 61010-1

Regenerative DC Power Supply｜ 9Regenerative DC Power Supply
Ene-phant series

Application

Battery Simulation
Storage battery
simulated voltage [V]The CV mode is specified sothat the set voltage value (A inthe figure on the right) remainsA

constant, and charge/discharge
is automatically repeated. This
enables battery simulation

Three-phase PCS emulator with P and Q control of output values

︓Battery capacity during simulation

Storage battery voltage
at 100% SOC

electriﬁcation
Storage battery voltage0
at 0% SOC

electricaldischarge

SOC[%]
100

SOC withstand voltage graphby simulating the A voltage.

SystemThree-phase 3-wire 400V

Power supplies for automotive inverter evaluation
SystemThree-phase 3-wire 400V

Regenerative DC
Power Supply

+

R
S
T

Motor
Inverterelectrical discharge

Set voltage【V】

ｰelectriﬁcation

PWM output

R
S
T
N

R
S
T

motor

Regenerative DC
Power Supply+

electrical discharge

Motor
Inverter

Set voltage【V】

ｰelectriﬁcation

Battery simulation

R
S
T
N

PWM output

motor

regenerative power three-phase four-wireregenerative power three-phase four-wireBattery simulation

DC power supply (HVDC: High Voltage DC Network) evaluation+

SystemThree-phase 3-wire 400V

Set voltage【V】

HVDC380V

electriﬁcation

AC
DC ｰ

electrical discharge

R
S
T

DC
DC

+

Outline drawingｰNT-AD-50K ■ -B 外観図■は D(350V)、H(750V)、O(1500V)

Simulated electronics

It can also be used as a simulated loadby specifying the load mode.

Battery simulation for HVCD

As a battery simulator for high-capacity UPS, etc.
+

SystemThree-phase 3-wire 400V

R

electriﬁcation

AC
DC ｰ

electrical discharge

RST

Set voltage【V】

DC
S
AC T
Three-phase 3-wire 400V

Battery simulation for HVCD

Regenerative DC
Power Supply
Charging (power)

+

R
S
T

Lib

SystemThree-phase 3-wire 400V Charging anddischarging testerｰDischarge(regenerative)

ChargeDischarge
Electric current electric current

Charging and Discharging Tests【A】
Time【s】

Charging
Sequence

Discharge
Standby Sequence
sequence

In CC or CP mode, by switching and specifying charge (power) and discharge (regeneration), the storage
battery can be

10 ｜ Ene-Phant series

Charging and discharging of storage batteries is possible.

NT-AD-50K ■ -B Outline drawing

The maximum voltage is as high as 1500V, so testing up to stacks is possible.

■ is D(350V) or H(750V) or O(1500V)

Regenerative DC Power Supply｜ 11

Regenerative DC electronic load
Regenerative type AC/DC electronic load
10kW DC model - Provides increased capacity through expansion

Up to

The electronic loads of the Ene-phantseries
are From DC to 3-phase AC Suitablefor evaluation of all energy sources.

5
expansion
combination

10kW

20kW

30kW

40kW

50kW

DC

NT-AD-10KG-L
×1

NT-AD-10KG-L
×2

NT-AD-10KG-L
×3

NT-AD-10KG-L
×4

NT-AD-10KG-L
×5

680Vdc

60A

120A

180A

240A

300A

46 patterns of regenerative electronic loads can be expanded by combination, ranging
from DC up to 1500V to worldwide grid voltages for 3-phase 3-wire/4-wire. Load

50kW AC/DC model - Provides increased capacity through expansion
Up to

13

capacities can be extended up to 250 kW.
The system can be used to evaluate all energy sources, from the grid to converters andinverters. It can also flexibly handle power conversion for future automotive electronics

50kW

100kW

150kW

200kW

250kW

DC

NT-AD-50KE-L
×1

NT-AD-50KE-L
×2

NT-AD-50KE-L
×3

NT-AD-50KE-L
×4

NT-AD-50KE-L
×5

750Vdc

200A

400A

600A

800A

1000A

1Φ
2W

NT-AD-50KE-L
×1

NT-AD-50KE-L
×2

NT-AD-50KE-L
×3

NT-AD-50KE-L
×4

NT-AD-50KE-L
×5

350Vrms

175Arms

350Arms

525Arms

700Arms

875Arms

expansion
combinationsuch as V2L and V2G, which will become generation infrastructure equipment.

1Φ
3W

NT-AD-50KE-L
×2

NT-AD-50KE-L
×4

350Vrms

175Arms

350Arms

10kW dual-use AC/DC model - Provides increased capacity through expansion
Up to

3Φ
3W/4W

13

10kW

20kW

30kW

40kW

50kW

NT-AD-10KE-L
×1

NT-AD-10KE-L
×2

NT-AD-10KE-L
×3

NT-AD-10KE-L
×4

NT-AD-10KE-L
×5

680Vdc

60A

120A

180A

240A

300A

1Φ
2W

NT-AD-10KE-L
×1

NT-AD-10KE-L
×2

NT-AD-10KE-L
×3

NT-AD-10KE-L
×4

NT-AD-10KE-L
×5

480Vrms

60Arms120Arms

180Arms

240Arms

300Arms

NT-AD-50KE-L×3×4

175Arms

350Vrms

expansion
combination

DC

1Φ
3W

NT-AD-10KE-L
×2

NT-AD-10KE-L
×4

480Vrms

60Arms120Arms3Φ
3W/4W
480Vrms

12 ｜ Ene-Phant series

50kW DC model - Provides increased capacity through expansion

Up to

15
expansion
combination

350V

750V
NT-AD-10KE-L
×3
60Arms

×4

1500V

50kW

100kW

150kW

200kW

250kW

NT-AD-50KD-L
×1

NT-AD-50KD-L
×2

NT-AD-50KD-L
×3

NT-AD-50KD-L
×4

NT-AD-50KD-L
×5

300A

600A

900A

1200A

1500A

NT-AD-50KH-L
×1

NT-AD-50KH-L
×2

NT-AD-50KH-L
×3

NT-AD-50KH-L
×4

NT-AD-50KH-L
×5

200A

400A

600A

800A

1000A

NT-AD-50KO-L
×1

NT-AD-50KO-L
×2

NT-AD-50KO-L
×3

NT-AD-50KO-L
×4

NT-AD-50KO-L
×5

100A

200A

300A

400A

500A

Regenerative AC/DC electronic load ｜ 13

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series「AC-DC dual-use」＋「regeneration」
Aiming for the next level

1050 kW ～ 250
model

kW

Interface

kW

model

～ 50 kW

Single phase, DC NT-AA-10KE-L

InterfaceUSB, RS-232C, LAN, DI/DO, AI as standard equipment

Extended up to 50 kW
Up to 5 units, 50 kW for single-phase 2-wireExpandable up to 30 kW (3 units) for three-phase

Load function（AC-DC dual-use）
DC: 680V/60A
CC,CR,CV.CP,MPPT
AC: 480Vrms/60Arms
CC,CR,CP,CF,PF(40 to 70Hz)
Advance/delay phase can be set(-90deg to 0 to +90deg)
Frequency 40~440Hz seamless (optional)
Frequency 40~70Hz/380Hz~420Hz (optional)
Frequency 5~1000Hz (optional)
Additional load mode (GCC/GCR) for generators (optional)

system input*1
three-phase
three-wireline200V

Regenerative efficiency of 90% or more
Highest efficiency in the industry! 1/10 of the load
powerHigh efficiency of more than 70% and high efficiency
regeneration even with 1/10 of the load power!

RS-232C, LAN, DI/DO, AI/AO as standard
equipment

Oscilloscope-like control panel
Large 3.5-inch LCD. The oscilloscope's
The button layout allows intuitive operation.

Extended up to 250 kW

Up to 5 units for single-phase 2-wire, up to 250 kW
Expandable up to 150 kW (3 units) for three-phase*NT-AA-50KE-L model

Load function (DC only)
1500V/100A（NT-AD-50KO-L）
750V/200A（NT-AD-50KH-L）
350V/300A（NT-AD-50KD-L）
CC,CR,CV,CP,MPPT（Factory Options）

Load function (AC-DC dual-use)

AC: 350Vrms/175Arms
CC,CR,CP,PF(40 to 70Hz)
Advance and delay phase can be set（-90deg ～ 0 ～＋ 90deg）
Frequency 40 to 440Hz seamless (optional)
Frequency 40 to 70 Hz/380 to 420 Hz (optional)
Additional load mode (GCC/GCR) for generators (optional)

Maximum rated 1500V

Compliant with grid-connection regulations
Equipped with grid monitoring function as standard.
monitoring functionality equivalent to that of a PCS!

Series operation option

Low regenerative power noise

eries operation connection is available as an
option. (except NT-AD-50KO-L)
Expandable up to 700 V with NT-AD-50KD-L (350V) and up to 1500 V with NT-AD-50KH-L by seriesconnection*1

Load function (DC only)
DC: 680V /60A
CC,CR,CV,CP,MPPT

Regenerative efficiency of 90% orHigh efficiency is realized! Highly efficient
regeneration with efficiency of over 70% even at 1/10
of load power

Compliant with grid-connection regulations

system input*1
three-phase
three-wireline200V
14 ｜ Ene-Phant series

Equipped with grid monitoring function as standard.
Capable of monitoring equivalent to PCS!

NT-AD-10KG-L

Low regenerative power noise
Power noise in accordance with CISPR Class A*1Input voltage can be changed to single-phase 3-wire 200V (option)●

DC: 750V/200A
CC,CR,CV.CP,.
MPPT (factory option)

NT-AD-50KO-L can handle up to 1500V

Power noise in accordance with CISPR Class A

DC only●*1Neutral point connected to ground*2 Input voltage can be changed to 3-phase 200V (option)

Single phase, DC NT-AA-50KE-L
system input*2
three-phase three-wire line400V

DC only

NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L

system input*2
three-phase three-wire line400V
Regenerative AC/DC electronic load

｜ 15

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series

Load function■ Various load modes for both AC and DC■ Supports high voltages

Supports up to 12 different load modes in AC and DC

Supports up to 1500V for a wide range of output load
tests of various high-voltage devices associated withhigher voltages of electronic components

mode, depending on the model【Load Mode DC】
Model
CC CR CV CP CC+CV CP+CV MPPTNT-AA-10KE-L〇 〇 〇 〇〇
NT-AD-10KG-L〇 〇 〇 〇〇
NT-AD-50KO-L〇 〇 〇 〇〇〇
〇 *1
NT-AD-50KH-L〇 〇 〇 〇〇〇
〇 *1
NT-AD-50KD-L〇 〇 〇 〇〇〇
〇 *1
NT-AA-50KE-L〇 〇 〇 〇
〇
〇
〇 *1

6
MPPT
Model

Regenerative AC/DC Electronic Loads
Regenerative DC electronic load

regeneration

Ene-phant Series

optionemergency

booster

stop

DC
DC
DC
AC
AC
1500V 750V 680V 480V 350V
50kW model 50kW model 10kW model 10kW model 50kW model

The Ene-phant series of regenerative AC/DC electronic loads offers five load voltage models with capacities of 10 kW
and 50 kW, from 350 V to 480 V AC and 350 V to 1500 V DC. It is the only AC load among regenerative electronic loads
and can be used for a wide range of applications from three-phase to variable power factor. Since it can be used forboth AC and DC, it can be used as a multi-input variable PCS, and can be used for demonstration experiments
ranging from wind power generation and solar power generation to bio-fuel-based power generation.
※ Free control software "NT-AA Controller*1" is also available.

【Load Mode AC】
Model
CC CR CP CF
NT-AA-10KE-L〇 〇 〇 〇
NT-AD-10KG-L
NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L
NT-AA-50KE-L〇 〇 〇 -■ MPPT mode

PF GCC GCR〇 〇 *1 〇 *1
〇
P2

I
I MP

P1

P
MPPT mode (mountainclimbing method*) thatenables testing of IV
Vcharacteristics, etc. byP
directly connecting PV
Ppanels. This is a control
method that continuouslyVadjusts the operating voltage
V V
V V
and current until maximum
Mountain Climbing Method Modepower* is obtained.
MAX

MAX

MP

*1 : This is for 10kW models.

MP2

Download Page：https://www.keisoku.co.jp/pw/support/download-doc/

Operation Image■ Order Information
Model
NT-AA-10KE-L
NT-AD-10KG-L
NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L
NT-AA-50KE-L
NT-AA-10KE-L/REC
NT-AD-10KG-L/REC
NT-AD-50KO-L/REC
NT-AD-50KD-L/REC
NT-AD-50KH-L/REC
NT-AA-50KE-L/REC
AX-OP01
AX-OP02
AX-OP03*2
AX-OP04*2
AX-OP05*2
AX-OP07*2
AX-OP08*2
AX-OP09*2
AX-OP10*2
AX-OP11*2
AX-OP13*1
AX-OP14*1
AX-OP15*2
AX-OP16*1
AX-OP17*1
AX-OP18*2

OCMP1

Name of product
Regenerative AC/DC electronic load (single-phase 10 kW model)
Regenerative DC electronic load (single-phase 10 kW model)
Regenerative DC electronic load (single-phase 50 kW model)
Regenerative DC electronic load (single-phase 50 kW model)
Regenerative DC electronic load (single-phase 50 kW model)
Regenerative AC/DC electronic load (single-phase 50 kW model)
NT-AA-10KE-L Inspection Report
NT-AD-10KG-L Inspection Report
NT-AD-50KO-L Inspection Report
NT-AD-50KD-L Inspection Report
NT-AD-50KH-L Inspection Report
NT-AA-50KE-L Inspection Report
Master-slave connection 1m cable option
Master-slave connection 3m cable option
Voltage and current monitoring options
GP-IB interface option
Frequency 400Hz seamless option(40-440Hz)
AC cable 3m option
System-side power measurement option
Adjuster bracket
Option to convert to single-phase 3-wire 200V on the grid side
Additional load mode option for generators (GCC/GCR)
Optional three-phase 3-wire 200V conversion on the grid side
Frequency 400Hz seamless option (40-440Hz)

Price■ PF mode (advance and delay current phase setting)Capacitive (C), resistive (R), and inductive (L) loads can be
simulated with a single unit. The phase can be set in therange of -90deg to +90deg, and can also be set by power
factor. It is best suited as an output load for inverters.

【DC】
Model
NT-AA-10KE-L
NT-AD-10KG-L
NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L
NT-AA-50KE-L
【AC】
Model
NT-AA-10KE-L
NT-AD-10KG-L
NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L
NT-AA-50KE-L

Low range
High range
70 ～ 340V
140 ～ 680V
70 ～ 340V
140 ～ 680V
50 ～ 1500V
20 ～ 750V
20 ～ 350V
20 ～ 750V（40 ～ 1500V*2）
Low range
50 ～ 240Vrms

High range
100 ～ 480Vrms

20 ～ 350Vrms■ CF mode (Crest factor setting)
The crest factor (crest factor)
can be set arbitrarily in therange from 1.4 (sine wave)
to 4.0 in 0.1 increments.
This enables testing that
reproduces the crest factor
of capacitor-sintop switching
power supplies, etc.
CF mode operating waveform*3■ GCC/GCR mode(Factory option for generator
output: AX-OP10, AX-OP17)

Even if the output waveform contains distortion, as in anengine generator, the new load modes GCC and GCR cantake the load stably.
(Compatible models: NT-AA-10KE-L and NT-AA-50KE-L)
GCC：GeneratorCC（ Constant current mode for generators）
GCR：GeneratorCR（ Constant resistance mode for generators）
In addition, advance and delayphase can be set by PF mode

Please contact us

R load current in-phase operating waveform*3■ Supports 400 Hz frequency(Factory option: AX-OP05, AX-OP15)

Frequency 400Hz option(for 40 to 70Hz/380 to 420Hz/10kW)

Frequency 400 Hz option (40 to 70 Hz/380 to 420 Hz)
Load mode option for generators (GCC/GCR)
Frequency 1,000 Hz seamless option (5 to 1,000 Hz)*1:Option for 50kW model only *2 : Option for 10kW model only

Operating waveform in GCR mode*3

C Load current advancephase operating
waveform*3

L Load Current Delay Phase
Operating Waveform*3

The standard frequency range is 40~70Hz, but with theoption, 400Hz AC (380Hz~420Hz) for aircraft and ships
can be supported. A custom option is also available
for seamless response from 40 to 420 Hz. It can also be
applied to evaluation and testing of industrial motor
inverters (smoothing inductance is required separately).
(Compatible models: NT-AA-10KE-L and NT-AA-50KE-L)*1:Factory Options *2:When connected in series *3:Yellow: voltage / Pink: current
16 ｜ Ene-Phant series

Regenerative AC/DC electronic load

｜ 17

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series

Load function

Grid interconnection (Regeneration)■ Frequency 1000 Hz supported (Factory option: AX-OP18)■ Regenerative efficiency of more than 90

Seamless operation from 5Hz to 1,000Hz

15% or more of the rated power is used. Highly efficient regeneration is possible over a wide range of load power.

High efficiency of over 90% (at rated load) is realized. Furthermore, a regenerative efficiency of 80% or higher is achieved when

It responds from 5 Hz, which is the low frequency range required for motor simulation, and corresponds to the base frequency
of motor inverters, 5 Hz to 1,000 Hz (accuracy guaranteed: 5 Hz to 800 Hz). This is the only model in Japan with a wide
bandwidth of 5Hz to 1,000Hz for AC electronic loads. (According to our own research).
(Compatible model: NT-AA-10KE-L)
input■ Frequency 400 Hz seamless option (Factory option: AX-OP05, AX-OP14)

input

Seamless operation from 40Hz to 440Hz

Compatible with motor inverters (PWM output)

The base frequency of industrial motor inverters from 40 Hz
to 440 Hz is supported.
(Compatible models: NT-AA-10KE-L and NT-AA-50KE-L)

The PWM output from the motor inverter is smoothed by a

input
input

filter to enable evaluation experiments without using a motor
emulator or actual motor. Since it is not a dedicated testing
device, it can also be used for a wide range of experiments asa general-purpose AC electronic load.
Output waveform
after smoothing

PWM output waveform

Load input power (kW)NT-AA10KE-L-Load Input
Regenerative Power Eﬃciency Characteristics

Voltageelectric
current

Power factor±0.7
Variable

Basal frequency 40~400Hz

carrier frequency 10K~15kHz
PWM output
General-purpose
power supplyST

system
3Φ3W
400V

NT-AA-50kE-L×3
3Φ3W 150kW

DUT
R

DC
power
supply

R

S

S

T

T

■ Regenerative power noise Complies with Class A of CISPRRegenerative power noise complies with Class A. It is low
noise so that there is no influence such as operation failure
to other devices caused by regenerative power noise.

INVERTER
Motor inverter
carrier frequency
10k～15KHz
fundamental frequency
40～400Hz

InductanceBOXNon-site regenerative electric power

S

N

LO

R

L

AD

L

LO

Load connection
methodAD

R

平滑出力※ LoRange 100V 50Hz input: The maximum power data is up to 6kW because the load current specification range is 60A.

AC Regenerative
Electronic Load

LOAD

[dB(μV )]<CISPR11 Group1 Class A>
Limit(QP)
Limit(AV)<160316_CE018_Final>
Scan(L1,PK)
QP Level-(L1)
C-AV Level-(L1)

110

L

N

100

T

90
80

■ System-side power measurement(Factory option: AX-OP08)
It can measure the integrated power and active power(instantaneous power) on the grid side. This function
can be used as a multiple power generation simulator bycontrolling and correcting the power flowing into the gridby varying the load power. The ability to simulate power
generation operations using software makes it ideal for
smart grid demonstration experiments.
(Compatible models: NT-AA-10KE-L, NT-AD-10KG-L)

Level

70

Grid interconnection (Regeneration)■ Adopts electrical insulation with transformer

Equipped with grid monitoring and protection functions
compliant with grid interconnection regulations, it has
the same monitoring and protection functions as general
power conditioners on the market, allowing energy to
be circulated safely and without waste. The various gridmonitoring functions can be set to any desired value.

Electrical isolation between
electronic load and grid by
Load side and grid side
Transformer isolation"transformerbetween theelectronic load and the system. for peace of mind
Safe and securedesign.

18 ｜ Ene-Phant series

50

Multi-Power Generation Simulator

40■ Compliance with grid-connection regulations

System monitoring
OCR
overcurrent relay
OVR
overvoltage relay
UVR
undervoltage relay
OFR
overfrequency relay
UFR
under-frequency relay
Stand-alone operation Active method (frequency shift method)
detection function
Passive method (voltage phase jump method)60■ Single-phase 3-wire input voltage selection
on the grid side(Factory option: AX-OP10)
Input voltage can be changed to single-phase 3-wire

30
20
10

Obtain grid power values andthe incoming power to the grid
The power inﬂow to the grid is corrected.

0
0.150

0.500

1.000

Frequency

5.000

10.00030.000[MHz]

LAN■ Three-phase 3-wire 200 V input voltage
selection on the grid side(Factory option: AX-OP13)(single-phase 2-wire connection possible) system. 3-phase

The input voltage can be changed to the standard 3-phase

4-wire 220V, 230V, etc. are also available upon special order.

3-wire 200V used in offices and factories. 3-phase 4-wire(Compatible models: NT-AA-10KE-L, NT-AD-10KG-L)

220V, 230V, etc. are also available upon special order.
(Compatible models: NT-AA-50KE-L, NT-AD-50KO-L, NT-AD-

R

L

S

N
system
1Φ200VT

NT-AA-10KE-L

system3Φ3W

The load power can be varied and the power flowing
into the grid can be controlled.
It can be used as a multi-generation simulator.

50KH-L, NT-AD-50KD-L)
Regenerative AC/DC electronic load

｜ 19

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series

User interface

Other■ Oscilloscope-like operability■ Easy to use and simple dial operation

The oscilloscope's button layout andA large dial (rotaryknob) is provided for
comfortable operationof various functions andsettings. The controls
are as simple aspossible, with emphasis
on intuitive operation.

operability are employed: theassigned function switches to the■ Soft start function■ Body protection function

The time setting for current rise can be selected from fourtypes: 1 second, 2 seconds, 5 seconds, and 10 seconds,
allowing for flexible response to the responsiveness of thepower supply under test, etc.

The main body of the electronic load device is equippedwith 8 types of protection functions for safe test operation.
Safeguard

button image on the LCD screen,electric current

allowing intuitive operation.

electric current

10kW model

50kW model■ Emergency stop button

1 2

Equipped with an emergency stop button, which is

5

10Time (seconds)

OVP(INT)Internal overvoltage protection

OTP(INT)Internal overheat protection

OCP

Overcurrent protection

OVP

Overvoltage protection

LVP

Undervoltage protection

OPP

Overpower protection

OFP

Overfrequency protection

LFP

Low frequency protection

indispensable in the car electronics industry. The gate of■ Convenient adjuster fixture for earthquake resistance(Option: AX-OP09 10kW model only)

the power line is blocked (forced open by conductor) when
operating. To prevent malfunction, guards are provided for10kW and 50kW respectively, and external control (DI input)

10kW modelis also possible.

50kW model

Adjuster fixing fittings are available as an option. Anchor bolts can be hammered directly
into the floor surface to secure the unit, providing earthquake protection.

■ Single-component overview chart

InterfaceThis is a single-coupling diagram for AC and DC modes respectively.

■ Extensive interfaces

AC

RS-232C, LAN (Ethernet), and PLC interfaces are commonly equipped as standard, enabling remote control including
automation from a host PC. The 10kW model is also equipped with USB as standard. GP-IB (AX-OP04) can also be selected as an
option.

AC load input mode
E

AC/AC Converter

1Φ240V / 480V

distribution frame
communication

Analog/Digital I/O

Isolation Transformer

3Φ3W 200V

a switch【Load Mode DC】

Model
NT-AA-10KE-L
NT-AD-10KG-L
NT-AD-50KO-L
NT-AD-50KH-L
NT-AD-50KD-L
NT-AA-50KE-L

LAN USB RS-232C GP-IB DI/DO
〇
〇
〇
〇 *1
〇
〇
〇
〇
〇 *1
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇
〇

AI
〇
〇
〇
〇
〇
〇

Analog input signal (AI): CC / CP / current phase setting
Digital input signal (DI): Load ON / OFF
Digital output signal (DO): Various alarms

load

DC

*1：Factory Options

DC load input modeE

distribution frame
Analog/Digital I/O
emergency stop

DC 340V / 680V

DC/AC Converter

Isolation Transformer■ Voltage and current monitor

a switchload(Option: AX-OP03 10kW model only, 50kW is standard equipment)■ Series operation connection option (50kW model: optional)

Voltage and current monitoring (waveform observation with an oscilloscope,etc.) is possible with a BNC connector (isolated) as an option.
voltage and current can be monitored (waveform observation by
oscilloscope, etc.) with BNC connector (isolated) as an option.
Voltage 10V/1000V/50 Ω BNC terminal/isolated output
Current 10V/200A/50 Ω BNC terminal/isolated output
In case of NT-AA-10KE-L and NT-AD-10KG-L

3Φ3W 200V

communication

The NT-AD-50KD-L can be used as a multi-power interface power conditioner by utilizing a wide range of DC inputs. The 350
V type NT-AD-50KD-L has an input voltage of 700 V, a current of 300 A, and a capacity of 100 kW, while the 750 V type NT-AD50KH-L can expand the input voltage to 1500 V, a current of 200 A, and a capacity of 100 kW.
(Compatible models: NT-AD-50KD-L, NT-AD-50KH-L)※ Neutral point connected to ground

Regenerative AC/DC electronic load

■ Expanded capacity up to 250 kW (50 kW model)
Three units in a master-slave configuration provide 150 kW of three-phase power, and five units in a master-slave configuration
can be combined to provide up to 250 kW. The system can be used for quick charger testing and high-capacity EV battery testing.

20 ｜ Ene-Phant series

Regenerative AC/DC electronic load

｜ 21

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series■ 10kW model Operating range and Outside drawing■ 50kW model Operating range and Outside drawing

Operating range (power curve)

Operating range (power curve)
At DC load

At AC load
NT-AA-10KE-L
NT-AD-10KG-L

500

800

450

700

400

【Vrms】At DC load

At AC load

NT-AA-50KE-L Load Power Curve

NT-AA-50KE-L Load Power Curve

Load Power Curve

600

350

【V】

NT-AA-10KE-L Load Power Curve

300

500

250

400

200

300

150

200

100

100

50
0

0
0

50

100

150

200

0

50

100

150

200

250

【A】

【Arms】At DC load

range
range

range
range

400

1400

700

350

1200

600

300

1000

22 ｜ Ene-Phant series

500

250

800

400

200

600

300

150

400

200

100

200

100

50

0

0

0

20

40

60

80

【A】

Outline drawing【V】

load current

NT-AD-50KD-L Load Power Curve

NT-AD-50KH-L Load Power Curve
800

【V】

load current【V】

NT-AD-50KO-L Load Power Curve
1600

100

120

0

0

50

150

【A】

200

250

0

50

100

150

200

250

300

350

【A】

Outline drawing

Regenerative AC/DC electronic load

｜ 23

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series■ Specification NT-AD-10KG-L
Model

Protection

NT-AD-10KG-L
Low range

High range

Rated value (engineering)
Rated power

0 ～ 10 kW

Operating Frequency
Load section rating

Rated current

60 A
10 kW > @180 V

30 A
10 kW > @360 V

Rated voltage

70 ～ 340 V

140 ～ 680 V

Minimum operating voltage

70 V

140 V

Safeguard

Overvoltage (OVR)

220 to 280 V (10 V steps) (common standby time and recovery method, OFF)

Undervoltage (UVR)

120 to 190 V (10 V steps) (common standby time and recovery method, OFF)Over Frequency (OFR)

50.0 to 65.9 Hz (0.1 Hz steps) (common standby time and return method, OFF)

Setting resolution

10 siemens
Converted current value ±1.0 % ± 0.2 A

Range of values

70 ～ 340 V

140 ～ 680 V

Setting resolution

0.5 V

1.0 V

± 1.0 % of Setting ± 1 V± 1.0 % of Setting ± 2.0 V

Range of values

0 ～ 10 kW

Setting resolution

20 W

System protection
functionInterface

Mountain climbing± 2.0 % of meas ± 1.0 V± 0.8 V

Measuring range

0 ～ 66 A (60 A + 10 %)Monitor output( Optional )Current measurement Measurement accuracy± 2.0 % of meas ± 0.2 A

General Specifications± 0.12 A

Measuring range

0 ～ 11 kW (10 kW + 10 %)Measurement accuracy± 4 % of meas. ± 1 W

Measurement resolution

External Control

Withstand voltage

11 kW (10 kW + 10 %) (optional)

Insulation resistance

11 kW (10 kW + 10 %) (optional)

Measuring range

Parallel connection(Master/Slave)

24 ｜ Ene-Phant series

RS-232C, USB (1.1 compliant), LAN

OptionGP-IB

DI

Photocoupler input

DO

Photo-coupler output (open collector)AI

0 ～ 10 V (CC/CP)

Voltage0 to 10 V / 0 to 1000 V, BNC/50 Ω /isolated output (optional)c

Electric current

0 to 10 V / 0 to 200 A, BNC/50 Ω /isolated output (optional)―

Electric current

200 usec or less (at 200 VDC input, voltage in low range)

Range of values

0 ～ 60 A

0 ～ 30 A

Setting resolution

1.0 A

0.5 A

Range of values

70 ～ 340 V

140 ～ 680 V

0.5 V

1.0 V
100 W ～ 10 kW

Setting resolution

20 W

Range of values

1, 2, 5, 10 sec

1P2W

1 to 5 units

1P3W

2 / 4 units

3P3W

3 units

3Φ 3W

Withstand voltage

AC 1800 V for 1 minute
DC 500 V 30 M Ω min.
2 A or less

1 A or less
25 kHzSystem side input: 3 Φ 3W 202 V ± 20 V, 50 / 60 Hz
Load side: 0 A to 60 A, 0 W to 10000 W

Power Consumption
Operatingenvironment

202 V ± 20 V、50 / 60 Hz

AC 1800 V for 1 minute

Input- Between
load terminals
Between Input and FG
Input- Between
load terminals

Active area

Range of values

Frequency shift (standby time and return method are common)

Switching frequency

FeatureAccuracy

Master-slave, up to 50 kW limit Cancel if system protection is OFF

Standard

Ripple current

kWh (optional)

Voltage

Deg voltage phase jump (Wait time and return method are common)

Rated voltage of power supply (domestic specification)± 0.1 W

Measuring range
System-side active
power measurement Measurement accuracy

45.0 to 60.9 Hz (0.1 Hz steps) (common standby time and recovery method, OFF)

External interface

1.0 % of Setting ± 40 W

Measurement resolution

Under Frequency(UFR)
Independent operation
detectionPassive (IDP)
Independent operation
detectionActive (IDA)
Reverse Tidal Limit

Measurement resolution

Power Limit

LoadOn is not turned on when the applied voltage is reverse polarity.

4.7 ～ 6.8 k Ω±1.0 % ± 0.2 A
1.2 ～ 3.4 k Ω

Measurement accuracy

Power Limit

10.5 kW or more Load shutdown

None (standby time and recovery method are common, OFF)0 ～ 748 V (680 V + 10 %)Voltage Limit

Over Power (OPP)

Overcurrent (OCR)

Measuring range

Current Limit

Setting resolution and accuracy are the same as CV mode

25 mA

Measurement (*3) (*4)

Response speed

Setting resolution and accuracy are as same as CV mode (Threshold is set by current limit)

50 mA

MPPT mode

System-side
integrated power
measurement

Overvoltage (OVP)
Undervoltage (UVP)

Setting resolution

Accuracy (*2)

Power measurement

Setting resolution and accuracy are the same as CC mode (Threshold is set by current limit)

0 ～ 30 A

Accuracy

Voltagemeasurement

Overcurrent (OCP)

0 ～ 60A

Accuracy (*2)

CP modeSwitching device mounting
Load shutdown operation at 90 °C or higher on heatsink

Range of values
Accuracy (*1)

CV modeInternal HVDC 430 V or more for load disconnection operation

DC side reverse
connection(DRCP)

Range of values
CR modeInternal relay switch off (stop operation by emergency stop button)

Internal
overvoltage(IVP)Internal
overheating

DC

Load mode
CC modeEmergency stop

200 VA or less (standby state)

Ambient temperature

0 ～ + 40 ℃

Environmental humidity

20 to 85 % RH (no condensation, no corrosive gases)

Installation environment

Indoor (court, pool, etc.)

advanced

Less than 2000 m

Cooling method
Dimensions (W x H x D)

Forced air cooling
W 450 × H 638 × D 700 (mm) (Not including protrusions)

Weight172 kg*1 :Low range: at 200 V, Hi range: at 400 V. Accuracy is not guaranteed below 5 A.
below 5 A.*3 :Indicator not guaranteed*2 :Low range: at 200 V, Hi range: at 400 V. Accuracy is not guaranteed*4 :The current measurement system is shared with the current sensor of the internal converter, so the amount of

current flowing through the filter circuit (about 15uF) is an error.*The contents of product specifications are subject to change without notice.

Regenerative AC/DC electronic load

｜ 25

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series■ Specification NT-AA-10KE-L■ Specification NT-AD-50KD-L/NT-AD-50KH-L/NT-AD-50KO-L

Model

Load section rating

CC モードCR ModeCV mode(DC mode only )CP ModeMPPT mode (DC mode only)
CF mode(AC mode only )Response speed
Current Limit
Voltage Limit
Power Limit
Soft start
Voltage measurement

Current measurement

Peak current measurement

Effective power measurement

Apparent power measurement

Power factor measurement

Frequency measurement

Rated power
Operating Frequency
Stop motion current
Rated voltage
Minimum operating voltage
Regenerative efficiency
Range of values
Resolution
Accuracy *1, 2Power factor setting range
Force Rate Setting Decomposition Energy
Phase difference setting range
Phase difference setting resolution
Range of values
Setting resolution
Accuracy *1
Range of values
Setting resolution
Accuracy
Range of values
Setting resolution
Accuracy *1
Range of values
Setting resolution
Voltage
Electric current
Range of values
Setting resolution
Range of values
Setting resolution
Range of values
Setting resolution
Range of values
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution
Measuring range
Measurement accuracy
Measurement resolution

Safeguard
System protection function
Interface
External Control
Monitor output( Optional )Parallel connection (Master/Slave)

Standard
OptionDI
DO
AI
Voltage
Electric current
1P2W
1P3W
3P3W
Active area

General Specifications

Model

NT-AA-10KE-L
Low range

Power Consumption
External dimensions
WeightOperating elevation
Ambient temperature
Environmental humidity

High range

0 ～ 10kW
DC, 40 ～ 70Hz(400Hz is optional )60Arms 120Apeak / 60Adc
30Arms 60Apeak / 30Adc
240Vrms / 340Vdc
480Vrms / 680Vdc
50Vrms / 70Vdc
100Vrms / 140Vdc
More than 90% of the maximum (when framed into the output force)0 ～ 60Arms / 0 ～ 60Adc
0 ～ 30Arms / 0 ～ 30Adc
50mA
25mA
±1.0% of Setting ± 0.2A(DC, 50/60Hz)±1.00(AC mode only )0.01(AC mode only )± 90deg(AC mode only )1deg(AC mode only )AC：0.9 ～ 3.4k Ω / DC:1.2 ～ 3.4k Ω
AC：3.4 ～ 6.8k Ω / DC:4.7 ～ 6.8k Ω
10S±1.0% of converted current ± 0.2A (DC, 50/60Hz)
70 ～ 340V
140 ～ 680V
0.5V
1V
±1.0% of Setting ± 1V
±1.0% of Setting ± 2V
0 ～ 10kW
20W±1.0% of Setting ± 40W(DC, 50/60Hz)
Mountain climbing
1.4 to 4.0 (peak current limited)
0.1---400usec or less (at 200V DC input, voltage in low range)
0 ～ 120Aac / 0 ～ 60Adc
0 ～ 60Aac / 0 ～ 30Adc
0.5A
1.0A
50 ～ 240Vrms / 70 ～ 340Vdc
100 ～ 480Vrms / 140 ～ 680V
0.5V
1.0V
100W ～ 10kW
20W
1, 2, 5, 10sec
0 ～ 748V± 2.0% of meas ± 1V
± 0.8V
0 ～ 66A (60A+10％ )± 2.0% of meas ± 0.2A
± 0.12A
0 ～ 132A (120A+10％ )± 2.0% of meas ± 0.2A
± 0.12A
0 ～ 11kW (10kW+10％ )± 4.0% of meas ± 1W
± 0.1W0 ～ 11kVA (10kVA+10％ )± 2% of meas ± 40VA
± 0.1VA±1.00±10% of measure
0.01
40 ～ 70Hz±10% of measure
1Hz
Emergency stop, internal overvoltage, internal overheat, overcurrent, overvoltage, undervoltage, overpower,
Overfrequency, underfrequency, reverse connection on DC side
Overcurrent, overvoltage, undervoltage, overfrequency, underfrequency,
Passive stand-alone operation detection, active stand-alone operation detection
RS-232C, USB, Ethernet(LAN)GP-IB
Photocoupler input
Photo-coupler output (open collector)
0 ～ 10V(CC/CP/ Phase difference )0 ～ 10V / 0 ～ 1000V, BNC/50 Ω /Isolated output
0 ～ 10V / 0 ～ 200A, BNC/50 Ω /Isolated output
1 to 5 units
2 / 4 units
3 units
System side input: 3-phase 3-wire 202V ± 20V, 50/60Hz
Load side: AC 50 to 480Vrms / DC 70 to 680V
200VA or less (standby state)
W450×H638×D700mm
171kg
Less than 1000m
0 ～ +40℃
20 ～ 85%RH( No condensation, no corrosive gases )NT-AD-50KD-L

26 ｜ Ene-Phant series*2 50/60Hz

NT-AD-50KO-L

Output range

Framing Power
Rated value(engineering)

50kW

Rated voltage

350V

750V

1500V

Stop motion current

300A

200A

100A

Minimum operating voltage

0V

Ripple current
Regenerative efficiency
Voltage setting range
Constant voltage (CV) mode

Within 4Ap-p (switching frequency component)More than 90% of the maximum (when framed into the output force)
0 ～ 350V

0 ～ 750V

Setting resolution± 0.3% of F.S.

Response Time
Current setting range
Constant current (CC) mode

Setting resolution

Within 500msec（10% ～ 90%）
0 ～ 300A

0 ～ 200A

0 ～ 100A

0.3A

0.25A

0.125A

Accuracy± 0.3% of F.S.

Response Time
Current setting range
Constant resistance (CR) mode

Setting resolution

Within 5msec（10% ～ 90%）0.05 Ω～ 1.50k Ω

0.1 Ω～ 3.00k Ω

1 Ω～ 6.00k Ω

100S

50S

10S

Accuracy

0.3% of Rated Converted Current

Response Time

5msec 以内（10% ～ 90%）

Power setting range
Constant Power (CP)Setting resolutionmode

Accuracy0 ～ 1500V

0.1V

Accuracy0 ～ 50kW
20W± 0.5% of F.S.

Response Time

Within 5msec（10% ～ 90%）

MPPT mode

Mountain climbing method (factory option)

CC+CV mode

Setting range, resolution, and accuracy conform to CC mode and CV mode

CP+CV mode

Setting range, resolution, and accuracy conform to CP mode and CV mode

Soft start0, 1, 2, 5, 10sec

Measurement Division
Voltage measurement range
Voltage measurement

0.0 ～ 350.0V

0.0 ～ 750.0V

Measurement resolution

0.1V

0.1V

0.2V

Measurement accuracy± 0.3％ of meas． ± 1V

± 0.3％ of meas． ± 1V

± 0.3％ of meas． ± 2V
0.0 ～ 100.0A

Current measurement range
Current measurement

0.0 ～ 300.0A

0.0 ～ 200.0A

0.15A

0.125A

0.0625A

Measurement accuracy± 0.3％ of meas. ± 0.3A

± 0.3％ of meas. ± 0.25A± 0.3％ of meas. ± 0.125A

Power measurement range
Power measurement

0.0 ～ 1500.0V

Measurement resolution

0 ～ 50kW

Power measurement range

20W

Measurement accuracy± 0.5％ of meas. ± 62.5W

limit function
Voltage setting range
Voltage Limit

Resolution

0 ～ 360V

0 ～ 760V

0 ～ 1520V

1V

1V

2V

Operation at Limit
Current setting range
Current Limit

Power Limit

Resolution

Alarm is triggered at the set value of the limit. Output stops.
0 ～ 300A

0 ～ 200A

0 ～ 100A

0.3A

0.25A

0.125A

Operation at Limit

Clip the current at the set value of the limit

Power setting range

0 ～ 50kW

Resolution

20W

Operation at Limit

Clip the current at the set value of the limit

Safeguard
Emergency stop

Emergency stop of the equipment by pressing the emergency stop button on the rack

Overvoltage protection

390V

780V

1560V

Overcurrent protection

330A

220A

110A

Overpower protection

51.5kW

Overheat Protection

90℃（Switching element temperature）

Undervoltage protection
Internal overvoltage protection*15A or less out of range of use

NT-AD-50KH-L

Basic functionality

Reverse connection alarm

-2V
480V

960V

1920V

-2V

Regenerative AC/DC electronic load

｜ 27

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series■ (technical) specification NT-AD-50KD-L/NT-AD-50KH-L/NT-AD-50KO-L（succession）■ (technical) Specification NT-AA-50KE-L
Model
Basic functionality

System protection function
Overcurrent protection

82ArmsOvervoltage protection

445 ～ 475Vrms / Resolution 10Vrms / Detection time 0.1 to 2.5sec

Undervoltage protection

325 ～ 355Vrms / Resolution 10Vrms / Detection time 0.1 to 2.5sec

Overfrequency protection

50.0 ～ 65.9Hz / Resolution 0.1Hz / Detection time 0.0 to 9.9sec

Insufficient Frequency Protection

45.0 ～ 60.9Hz / Resolution 0.1Hz / Detection time 0.0 to 9.9sec

Stand-alone operation detection passive

Voltage phase jump detection / Detection level 2 to 10°/ Enable/Disable selectable

Stand-alone operation detection active

Reactive power fluctuation method / Enable/disable selectable

NT-AA-50KE-L

Output range

Other Functions
Remote sensing
Parallel run
Serial operation

FeatureCorrection for voltage drop in power lines (up to 10 V one way)

EXT IN terminal (rear panel)

Rear terminal block（M6)Maximum number of parallel units
Maximum rated voltage/current/power
Maximum number of in-line units
Maximum rated voltage/current/power

5 units
DC 350V 1500A 250kW

DC 750V 1000A 250kW

2 units (not parallel when connected in series, factory option)
DC 700V 300A 100kW

DC 1500V 200A 100kW

DC 1500V 500A 250kW
Cannot be connected in series

External control signal Output/Input
Load on/off
Digital I/O

Analog input
Analog Output
Voltage monitor
Analog Output
Current monitor

Photocoupler input（DC12 ～ 24V/8mA）

Protection/alarm status

Photo-coupler output open collector（DC24V/10mA、recommendation1mA）

Operation mode setting

Photocoupler input（DC12 ～ 24V/8mA）

Emergency stop

Photocoupler input（DC12 ～ 24V/8mA）

Input voltage

0 ～ 10V

Setting items
Monitor output

Constant voltage(CV) mode(DC mode only)

CC, CC limit, CV, CV limit, CP, CP limit
0 ～ 10V / 0 ～ 500V

Output impedance

0 ～ 10V / 0 ～ 1000V

0 ～ 10V / 0 ～ 1500V

50 Ω

Port (e.g. LAN port)
Monitor output

BNC / Isolated output
0 ～ 10V / 0 ～ 300A

0 ～ 10V / 0 ～ 200A

Output impedance

50 ΩPort (e.g. LAN port)

BNC / Isolated output

0 ～ 10V / 0 ～ 100A

InterfaceCommunication Specifications
LAN

IEEE 802.3

Connector

RJ45

Data rate

10Base-T 100Base-TX

Connector

D-sub 9pin

Power supply

Input Rating

System side: 3-phase 3-wire 400 ± 40 V, 50 Hz ± 2 Hz or 60 Hz ± 2 Hz
Overvoltage category II

Power factor

At maximum load

0.9 or higher

Input power

At no load

800 VA 以下

RS-232C
General Specifications

At maximum load（At 400 VAC）
input current

73ArmsRecommended breaker

AC 100A

System Entry Force Terminal Block
Remote sense terminal block

WeightMain body only

Dimensions

Not including protrusions

Environmental condition

M6
Approx. 750 kg or less
W600 × H1977.5 × D900mm
Indoor use

Operating humidity
Storage temperature

20 %rh ～ 85 %rh（No dew condensation）-20 ℃～ +60 ℃
20 %rh ～ 85 %rh（No dew condensation）
2000 m or less
Forced air cooling by fan

Between input and output

AC1800 V、No abnormality after 1 minute of application

Between input and FG

AC1800 V、No abnormality after 1 minute of application

Between input and FG

DC500 V、30 M Ω min.

EMC Standards
CE
Safety standards

28 ｜ Ene-Phant series

M6

0 ℃～ +40 ℃

Advanced

Compliant Standards

M10

Operating temperature

Cooling method

Insulation resistance

M12

operating environment

Storage Humidity

Withstand voltage

60ArmsAt maximum load（At 360 VAC）
Power output terminal block

Terminal block Screw diameter

Rated value(Engineering)EN 61000-3-2
Low Voltage Directive 2014/35/EU
IEC 61010-1

M6

Constant current (CC) mode

Framing Power
Rated voltage
Stop motion current
Minimum operating voltage
Ripple current
Regenerative efficiency
Voltage setting range
Setting resolution
Accuracy
Response Time
Current setting range
Setting resolution
Accuracy

Power Factor Setting Range / Resolution
Phase difference setting
range / resolution
Response Time
Current setting range
Setting resolution
Constant resistance(CR) mode
Accuracy
Response TimePower setting range
Setting resolution
Constant Power (CP)mode
Accuracy
Response Time
MPPT mode（DC mode only）
CC+CV mode（DC mode only）
CP+CV mode（DC mode only）
Soft start
Measurement Division
Voltage measurement range
Voltage
Measurement resolution
measurement
Measurement accuracy
Current measurement range
Current
Measurement resolution
measurement
Measurement accuracy
Peak current measurement
Power measurement range
Effective power
Measurement resolution
measurement
Measurement accuracy
Apparent power measurement
Power factor measurement
Frequency measurement
limit function
Voltage setting range
Voltage Limit
Resolution
Operation at Limit
Current setting range
Current Limit
Resolution
Operation at Limit
Power setting range
Power Limit
Resolution
Operation at Limit
Safeguard
Emergency stop
Overvoltage protection
Overcurrent protection
Overpower protection

50kW
AC 350Vrms / DC 750V
AC 175Arms / DC 200A
AC 20Vrms / DC 20V
Within 4Ap-p(Switching frequency component)More than 90% of the maximum (when framed into the output force)
DC 20 ～ 750V
1V
1% of setting. ± 2V
Within 500msec（10% ～ 90%）
AC 0.0Arms ～ 175Arms / DC 0.0A ～ 200.0A
AC 0.25Arms / DC 0.25A
AC 2% of setting. ± 2.50Arms
DC1% of setting. ± 1.25A± 1.00 / 0.01 (AC mode only）± 90deg / 1deg (AC mode only）
Within 5msec（In DC mode 10% ～ 90%）
AC 0.12 Ω～ 1.40k Ω / DC 0.10 Ω～ 3.00k Ω
50S
2% of converted set current value ± 2.50A
Within 5msec（10% ～ 90%）
0 ～ 50kW
20W
2% of setting. ± 200W
Within 5msec（In DC mode 10% ～ 90%）
Mountain climbing(Factory Options）
Setting range, resolution, and accuracy conform to CC mode and CV mode
Setting range, resolution, and accuracy conform to CP mode and CV mode
0, 1, 2, 5, 10sec
0.0 ～ 750.0V
0.1V
1％ of meas. ± 1V
0.0 ～ 300.0A
0.125A
1％ of meas. ± 1A
0A ～ 220A
0 ～ 50kW
20W
2％ of meas. ± 250W
0VA ～ 50kVA± 1.0040Hz ～ 70Hz
AC

20V ～ 510V(kurtosis）/ DC 20 ～ 760V
1V
Alarm is triggered at the set value of the limit. Output stops.
AC 250A(kurtosis）/ DC 200A
0.25A
Clip the current at the set value of the limit
0 ～ 50kW
100W
Clip power at limit setpoints
Emergency stop of the equipment by pressing the emergency stop button on the rack
AC 365Vrms / DC 780V
AC 195Arms / DC 220A
51.5kW

Regenerative AC/DC electronic load

｜ 29

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series■ (technical) Specification NT-AA-50KE-L（succession）
Overheat Protection
Undervoltage protection
Overfrequency protection
Low frequency protection
Internal overvoltage protection
Reverse connection alarm （DC mode only）
System protection function
Overcurrent protection
Overvoltage protection
Undervoltage protection
Overfrequency protection
Insufficient Frequency Protection
Stand-alone operation detection passive
Stand-alone operation detection active
Other Functions
FeatureRemote sensing
EXT IN terminal (rear panel)
１P2W
１P3W
Parallel run
3P3W
Maximum rated voltage/current/power
Maximum number of units in series
Serial operation
Maximum rated voltage/current/power
External control signal Output/Input
Load on/off
Protection/alarm status
DigitalI/O
Operation mode setting
Emergency stop
Input voltage
Analog input
Setting items
Monitor output
Analog Output
Output impedance
Voltage monitor
port (e.g. LAN port)
Monitor output
Analog Output
Output impedance
Current monitor
Port (e.g. LAN port)
InterfaceCommunication Specifications
LAN
Connector
Data rate
RS-232C
Connector
General Specifications
Power supply

Input Rating

Power factor
Input power

At maximum load
At no load
At maximum load（At 400 VAC）
At maximum load（At 360 VAC）
Recommended breaker
Power input terminal block
System input terminal block
Remote sense terminal block
Main body only
Not including protrusions
Operating environment
Operating temperature
Operating humidity
Storage temperature
Storage Humidity
Advanced

Input
Terminal block Screw
diameter
WeightDimensions

Environmental
condition

Cooling method
Withstand voltage
Insulation resistanceCompliant Standards

30 ｜ Ene-Phant series

Between input and output
Between input and FG
Between input and FG
EMC Standards
CE
Safety standards

90℃（Switching element temperature）
AC 10Vrms / DC 10V
75Hz
35Hz
960V
-10V
82Arms445 ～ 475Vrms / Resolution10Vrms / Detection time0.1 ～ 2.5sec
325 ～ 355Vrms / Resolution10Vrms / Detection time0.1 ～ 2.5sec
50.0 ～ 65.9Hz / Resolution0.1Hz / Detection time0.0 ～ 9.9sec
45.0 ～ 60.9Hz / Resolution0.1Hz / Detection time0.0 ～ 9.9sec
Voltage phase jump detection / Detection level 2 ～ 10°/ Enable disabled
Reactive power variation method / Enable disabled
Correction for voltage drop in power lines (up to 10 V one way)
Rear terminal block（M6)5 units
2 units/4 units
3 units
AC 350Vrms 875Arms 250kW / DC 750V 1000A 250kW
2 units(Cannot be parallel when connected in series、Factory option for DC mode only）■ Example of capacity expansion configuration
DC and single-phase 2-wire AC input～ AC480Vrms

IEEE 802.3
RJ45
10Base-T 100Base-TX
D-sub 9pin
System side: 3-phase 3-wire 400 ± 40 V, 50 Hz ± 2 Hz or 60 Hz ± 2 Hz
Overvoltage category II
0.9 or higher
800 VA or less
60Arms73ArmsAC 100A
M10
M6
M6
Approx. 750 kg or less
W600 × H1977.5 × D900mm
Indoor use
0 ℃～ +40 ℃
20 %rh ～ 85 %rh（No dew condensation）-20 ℃～ +60 ℃
20 %rh ～ 85 %rh（No dew condensation）
2000 m or less
Forced air cooling by fan
AC1800 V、No abnormality after 1 minute of application
AC1800 V、No abnormality after 1 minute of application
DC500 V、30 M Ω min.
EN 61000-3-2
Low Voltage Directive 2014/35/EU
IEC 61010-1

AC202VORElectronicload sideDC～ DC680V

Slave

System side
(Regenerative side,
power supply)

Slave

capacity
Configuration
10kW
M: 1 unit = 1 total
20kW M1+S1=Total 2 units
30kW M1+S2=Total 3 units
40kW M1+S3=Total 4 units
50kW M1+S4=Total 5 units

Load connection method
DC・1Φ2W
L(+)
N(-)

Slave

Slave

Slaves (1 to 4 units)
20kW to 50kW capacity expansion!

M=Master, S=Slave

Configuration example 2: Single-phase 3-wire AC input
3Φ3W

DC 1500V 200A 100kW
Photocoupler input（DC12 ～ 24V/8mA）
Photo-coupler output open collector（DC24V/10mA、Recommended 1mA）
Photocoupler input（DC12 ～ 24V/8mA）
Photocoupler input（DC12 ～ 24V/8mA）
0 ～ 10V
CC, CC limit, CV, CV limit, CP, CP limit-10 ～ 10V / -1000 ～ 1000V
50 Ω
BNC / Isolated output-10 ～ 10V / -200 ～ 200A
50 Ω
BNC / Isolated output

3Φ3W

Master

1Φ2W

Master

1Φ3W

AC202V～ AC480Vrms
Slave

capacity
Configuration
10kW―
20kW M1+S1=Total 2 units
30kW―
40kW M1+S3=Total 4 units
50kW―

Electronicload side

System side
(Regenerative side,
power supply)

Load connection method
1Φ3W

Slave

R
N

Slave

T
Slave (1 or 3 units)
20kW or 40kW capacity expansion!

M=Master, S=Slave

Configuration example 3: Three-phase 3-wire AC input
3Φ3W～ AC480Vrms

3Φ3W
MasterSlave

Electronicload side

capacity
Configuration
10kW
―
20kW
―
30kW M1+S2=Total 3 units
40kW
―
50kW
―

AC202V

Load connection method

System side
(Regenerative side,
power supply)

3Φ3W

U

Slave

V
W

M=Master, S=Slave

Slave (2 units)
30 kW capacity expansion!

Supported Extension Configuration Table
10kW model capacity 50kW model capacity

Direct current

Single-phase 2-wire Single-phase 3-wire Three-phase 3-wire/4-wire

10kW

50kW

○

○

20kW

100kW

○

○

30kW

150kW

○

○

40kW

200kW

○

○

50kW

250kW

○

○

○

2
○

○

M/S Cable

3
4
5

Regenerative AC/DC electronic load

｜ 31

Regenerative DC electronic load
Regenerative AC/DC electronic load

Ene-phant series

Application
DC Applications

AC Applications

Solar battery

Fuel cell

power conversion（DC）
mode

CV

LAN(Remote Monitoring)

CC+CV

PLC

3Φ30kW 40 ～ 420Hz Seamless operation supported (special order)

Power conversion (DC)Power conversion (DC)MPPTRegenerative electronic load for AC/DC

mode

mode

regeneration

system3Φ3W
200V

regeneration

regeneration

DUT
R

wind power generation

DCsolar panelACsystem（3Φ）

DC

fuel cellACDCsystem（3Φ）

Power generator

Motor driver (inverter)

Wind power generation

AC

DC
power
supplyS

system（3Φ）

T

R

+

sine wave

AC

3Φ3W
200V

AC

S

－

AC

GCC/GCR
mode

電力可変
変換装置

T

3ΦsystemSmoothing by L

30kW

MAX

150

MAX V
0

150

0V

150

Motor Driver(Inverter)
120 to 400 Hz output

Regenerative eﬃciency
約90%

Commercial
Power(Grid)

AC

MAX V
0

● As a wide range (20 to 750 VDC input)
multi-power interface power conditioner● Hardwired to PLC. suitable for FC
CC+CV and CP+CV modes available● Compliance with grid-connection
regulations

EV Battery● CV mode is used to handle transient wind
power generationResponding to peaks● Remote monitoring
viaLANcommunication (standard)● Compliance with grid-connection
regulations

power generator（1Φ）

load mode：CC,CR,CP,CF,PF
3Φ3W 480Vrms
180Arms/30kW● 40~420Hz seamlessly variable● Variable power factor ( ± 1.0) for detailed
evaluation● Three-phase possible (30kW) in master-slave
configuration (3 units)

Power conversion (DC)CV,CR,CV,CP

CC,CR,CV,CP,
CC+CV● GCC/GCR mode for unstable power output● Three-phase possible (30kW) in master-slave
configuration (3 units)● Compliance with grid-connection regulations

UPS, inverter, PCS

Rapid charger
Power conversion (DC)CV,CR,CP,PF

BioWeight power supply

Power conversion (AC)Power conversion (AC)LAN(Remote Monitoring)

rapid charger

regeneration

regeneration

AC 1Φ

Various generatorsand elements

regenerative power●Wide range (20 to 750 VDC input) multipowerAs interface power conditioner●PV Panels with Maximum Power Point
Tracking (MPPT)As an evaluation●Compliance with grid-connection
regulations

GCC/GCR
mode

regeneration

NT-AA-10KE-L ×３

PWM
Outputregeneration

GCC/GCRmode

biofuelregeneration

UPS Inverter

DC

EV BatteryACsystem（3Φ）

MAX V
0

150

● Equipped with CC, CR, CV, and CP load modes as well
as CC+CV for optimal battery discharge● Expandable up to 250 kW in master-slave
configuration (5 units)

32 ｜ Ene-Phant seriessystem（3Φ）

AC

EV

DC

AC

MAX V
0

150

● Regenerative power is transferred to the input of quick chargers.
Energy conservation evaluation with on-site regenerative use.
● Expandable up to 250 kW in master-slave configuration (5 units)

system（3Φ）

AC

AC 1Φ

MAX

350

AC

s

Vrm

● Regenerative power is transferred to the input of UPS and inverters.
Energy conservation evaluation with on-site regenerative use● Three-phase possible in master-slave configuration (3 units)(MAX 150kW)● Power factor variable from 1 to -1 (phase variable with COS Θ )Dieselgenerator

AC

AC 1Φ

MAX

350

system（3Φ）

sVrm● AC load mode for unstable generator output● Three-phase possible in master-slave configuration (3 units)(MAX 150kW)● Compliance with grid-connection regulations

Regenerative AC/DC electronic load

｜ 33