XP PowerOS Series 2 kW
Regulated
High Voltage DC
Power Supplies
200 kV to 450 kV,Open Stack
CE Compliant
Power Factor
Corrected
to > .995
Harmonics
Well Below
EN61000-3-2
Fully RoHS
Compliant
The OS family of power supplies are sophisticated
2 kW, open stack, power supplies with extremely
low ripple and noise. They are air insulated fast
response units with tight regulation. They aredesigned to meet the growing demands fromboth users and electric utilities for switchingsupplies with excellent input power factors thatdraw harmonic currents below those specifiedin EN61000-3-2.
OS series models consist of a rack style driverchassis, a high voltage stack assembly, and aremote control unit. The driver chassis isprovided in a cabinet which is 8.43” H X 22.56” D,onto which the high voltage stack is mounted.
The dimensions of the stack vary with the output
voltage rating and are given in the specifications.
The rack mountable remote control provides all
interface functions and is connected to the driverchassis with the 25 ft. long cables provided. The
remote control unit is 5.25” H X 5.0” D.
Please refer to Technology > Applications page on
our web site for typical applications.
The OS Series, are fully compliant with the following European Directives:••••

EN61010/ IEC61010, Safety
EN61000-6-4, Conducted and RadiatedEmissions
EN61000-6-2:2005, Conducted and RadiatedImmunity
2011/65/EU, Restriction of the use ofHazardous Substances (RoHS).

Models from 0-200 kV through 0-450 kV.

Features:Power Factor Corrected. Active
correction circuitry achieves an input line
current harmonic content well below themaximum specified in EN61000-3-2.
Arc Quench. The HV output is inhibited
for a short period after each load arc to
help extinguish the arc.
Arc Count. Internal circuitry constantly
senses and integrates arcs that occur
over a given time. In the event a system
or load arcing problem develops andexceeds factory-set parameters, the power
supply will cycle off in an attempt to clear
the fault and then automatically restart
after a preset “off dwell time”.
Pulse-Width Modulation. Off-the-line
pulse-width modulation provides highefficiency and a reduced parts countfor improved reliability.

Constant Voltage/Constant Current
Operation. Automatic crossover fromconstant-voltage to constant-current
regulation provides protection against
overloads, arcs, and short circuits.
Current Trip. This feature may besubstituted for constant-current
operation by a remote control chassis
rear panel selector switch.
Low Ripple. Typically, ripple is lessthan 0.05% peak to peak of rated voltage
at full load.
Tight Regulation. Voltage regulation isbetter than 0.005% for allowable line andload variations. Current regulation isbetter than 0.1% from short circuit torated voltage.
Warranty. All power supplies are warranted for three years. A formal warranty
statement is available.

Air Insulated. The OS Series features“air” as the primary dielectric medium.
No oil or encapsulation is used toimpede serviceability or increase weight.

CE (Meets all applicable directives), UKCA
(Meets all applicable legislation)www.xppower.com

102002-146OS G 23-Oct-18

XP Power

Specifications(Specifications apply from 5% to 100%
rated voltage. Operation is guaranteed
down to zero voltage with a slightdegradation of performance.)
Input: 198-264 V RMS single phase,48-63 Hz, 2600 VA maximum at fullload. A three position terminal blockwith protective cover is provided on
the rear panel of the driver chassis.
Efficiency: Typically 80% at full load.
Power factor >0.995.
Output: Continuous stable adjustment
from 0 to rated voltage or current by
panel mounted 10-turn potentiometerswith 0.05% resolution, or by external
0 to 10 V signals is provided. Repeatability
better than 0.1% of setting. Voltage
accuracy is 0.5% of setting + 0.2% ofrated.
Voltage Regulation: Better than+/- 0.005% for specified line variations
and 0.005% for no load to fullload variations.
Current Regulation: Better than+/- 0.005% for specified line variations
and 0.1% from short circuit to rated
voltage at any load condition, whenin current regulation mode.
When in current trip mode the HV
output will disable and latch off
when the load current reaches theprogrammed current level. Reset isaccomplished by either cycling theAC power or HV ON/OFF buttons or
by toggling the HV enable signal. A
switch located on the rear panel ofthe remote control chassis allows theselection of current limit or current
trip operation.
Voltage monitor: 0 to 10 V equivalent
to 0 to rated voltage. Accuracy: 0.5%of reading + 0.2% of rated. Impedanceis 10 KΩ.
Current monitor: 0 to 10 V equivalent
to 0 to rated current. Accuracy: 1% ofreading + 0.05% of rated. Reverse
polarity models: 1% of reading + 0.1%of rated. Impedance is 10 KΩ.

Stored Energy: Stored energy varies
with output voltage and is tabulated
in the models chart.
Ripple: Ripple consists of two
major components, inverter switchingfrequency components and line
frequency related components.
The inverter frequency component
is dependent on the amount of load
current drawn. The line frequency
related component is determined by
the amount of power delivered to theload. The maximum values for bothcomponents are specified in themodels chart.
Stability: 0.01% per hour after 1/2 hourwarm-up, 0.05% per 8 hours.
Voltage Rise/Decay Time Constant:
400 ms typical using either the HV ON
switch or remote programming with aminimum 1.7 mA resistive load.
Temperature Coefficient: 0.01%/°C.
Ambient Temperature: -20 to +40° C,operating, -40 to +85° C storage.
Protection: Automatic current
regulation protects against all overloads,
including arcs and short circuits.
Thermal switches protect against
thermal overload. Fuses, surge-limiting
resistors and low energy components
provide ultimate protection.
Arc Quench: An arc quench featureprovides sensing of each load arc
and quickly inhibits the HV output
for approximately 0.25 seconds
after each arc.
Arc Count: Internal circuitry senses thenumber of arcs caused by external loaddischarges. If the rate of consecutive arcs
exceeds approximately one arc per second for 5 arcs, the supply will turn off
for approximately 5 seconds to allow
clearance of the fault. After this period
the supply will automatically return tothe programmed kV value with the risetime constant indicated. If the load
fault still exists the above cycle will
repeat.
Remote Control Unit: A separate
control panel chassis is provided whichcontains all the control functions.

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The front panel of this assembly
contains: separate 10-turn controls
with locking vernier dials used to set
the voltage and current levels, High
Voltage ON switch, High voltage
OFF/Reset switch and an AC power
on/off switch and indicator. LED‘sindicate when the high voltage is on,
output polarity, interlock status andwhether the supply is operating in a
voltage or current regulating mode.
Output levels are indicated by voltage
and current digital meters.
The rear panel of this assembly
contains: AC power on indicator,
ground stud, driver/control chassis
interface connectors, current limit/current trip selector switch, andremote user interface terminal strip.
The signals provided on the remoteuser interface terminal strip are
as follows:
Inputs: Output voltage and current
program signals, and high voltage
enable.
Outputs: Output voltage andcurrent monitor signals, a +10 V
reference source, and a high voltage
status signal.
Signal common and ground reference
terminals are also provided.
Remote HV Enable:
0 - 1.5 V = OFF,
2.5 - 15 V = ON.
External Interlock: Open = off,
closed = on. Latching with reset via
the HV ON switch or HV enable signal.
The front panel indicator is illuminatedwhen the interlock is open. Interlock
connections are provided on aterminal strip on the rear panel ofthe driver chassis.
HV Status: TTL level signal.
High = HV On, low = HV Off.
Accessories: 25 feet of detachable
interconnection cables are provided.

XP Power

Options
Symbol
ZR
SS
5VC
200
K01
K02

Description
Zero start interlock. Voltage control, local or remote, must be at zero before HV will enable.
Slow start ramp. Specify standard times of 5, 10, 15, 20, or 30 seconds ± 20% .
0-5 V voltage and current program/monitor.
180 - 220 VAC input 48 - 63 Hz. Derate output current by 10%.
RS-232/USB control and monitor
RS-232/USB/Ethernet control and monitor

ModelsPositive
Polarity

Negative
Polarity

Reversible
Polarity

OutputVoltage

OutputCurrent

OS200P10OS250P8OS300P6
OS350P4.5
OS400P3.5
OS450P3

OS200N10OS250N8OS300N6OS350N4.5
OS400N3.5
OS450N3

OS200R10
OS250R8OS300R6
OS350R4.5
OS400R3.5OS450R30 - 200 kV
0 - 250 kV0 - 300 kV
0 - 350 kV
0 - 400 kV
0 - 450 kV0 - 10 mA0 - 8 mA0 - 6 mA0 - 4.5 mA
0 - 3.5 mA
0 - 3 mA

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StoredEnergy
(J)
70
81100
112
131
150

High Freq.
Line Freq.
Ripple (P-P) Ripple(P-P)
100V
125V
150V
175V
200V
225V

10V
12.5V
15V
17.5V
20V
22.5V

XP Power

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