RIK mV
0-333mV Rogowski Coil Integrator

Users ManualCopyright © 2024 V: 1.0.3
This manual may not be altered or reproduced in whole or in part by any means without theexpressed written consent of Accuenergy.
The information contained in this document is believed to be accurate at the time of publication, however, Accuenergy assumes no responsibility for any errors which may appear here andreserves the right to make changes without notice. Please ask the local representative for latest
product specifications before ordering.

SAFETY INFORMATION
Please read this manual carefully before installation, operation and maintenance of theRogowski Coil Integrator.
The following symbols in this manual are used to provide warning of danger or risk during theinstallation and operation of the unit.

Electric Shock Symbol: Carries information about procedures which must be
followed to reduce the risk of electric shock and danger to personal health.
Safety Alert Symbol: Carries information about circumstances which if notconsidered may result in injury or death.
This mark indicates that this product is UL listed.
Installation and maintenance of the Rogowski Coil Integrator should only be performed byqualified, competent professionals who have received training and should have experience withhigh voltage and current devices.
Accuenergy shall not be responsible or liable for any damages caused by improper meter
installation and/or operation.

Product is protected by reinforced insulation

Application Around and removal from UNINSULATEDHAZARDOUS LIVE conductors is permited

WARNING: Disconnect power supply before making electrical connections.
WARNING: Current Transformers (CT’s) should be installed by trained electrician or technician.
WARNING: The secondary circuit of a CT should not be opened when current is flowing throughthe primary circuit.

Table of Contents
Chapter 1: Overview............................................................................................... 4
1.1 Overview............................................................................................................................... 4
1.2 What's Included................................................................................................................... 4

Chapter 2: Hardware Overview............................................................................. 7
2.1 Hardware Overview............................................................................................................. 7
2.2 Installation ......................................................................................................................... 10
2.3 Configuration..................................................................................................................... 13
2.4 Measurements................................................................................................................... 14

Appendix: Key Specifications.............................................................................. 15
SPECIFICATIONS....................................................................................................................... 15

RIK mV

0-333mV Rogowski Coil Integrator

Chapter 1
1.1 Overview
1.2 What's Included

RIK mV

0-333mV Rogowski Coil Integrator

Chapter 1: Overview
1.1 Overview
The Rogowski Integrator (RIK mV) is designed to provide users with an easy to install, plugand play, retrofit solution that can be used with any power meter or equipment with a333mV current input from a Current Transformer(CT). The flexibility of the Rogowski Coil CT's
reduces the complexity and allows it use to be used for a variety of applications andconfigurations where special constraints may limit the use of other CT solutions. The RIK is aconfigurable unit that can measure current from 2.5-60000A making it ideal for any system thatoperates at both 50Hz and 60Hz further adding to its flexibility.

1.2 What's Included
The Rogowski Coil includes either the single channel or three channel integrator unit whichcontains the seven configurable CT ratios for each channel. The integrator unit can be surfaced
mounted or mounted on a standard DIN rail.
Rogowski coils that will measure the current and the 24Vdc power supply to power the integrator are sold separately.

Three Phase Integrator

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Chapter 1: Overview

Single Phase Integrator

Details:
1Rogowski Coil Input
Three Channels for flexible rope style CTinput.

42333mV Output
Three Channels, 333mV Output.

5

3Power On Light
Indicates that the RIK is powered up.

6

CT Configurator
Seven individual field configurable CT
ratios for each channel
Rogowski CoilCT sizes available from 16-47 inches

Coil Input LeadInput lead for connection with RIK
integrator.

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RIK mV0-333mV Rogowski Coil Integrator

Chapter 2
2.1 Hardware Overview
2.2 Installation
2.3 Configuration
2.4 Measurements

Chapter 2: Hardware Overview

Chapter 2: Overview
The installation method is introduced in this chapter. Please read this chapter carefully before
beginning installation.

2.1 Hardware Overview
The RIK mV is composed of the integrator and the optional power supply which can all bemounted on a DIN rail along with one or three Rogowski coils. Rogowski coil and power supply
sold separately.

Three Phase Integrator

Single Phase Integrator

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RIK mV

0-333mV Rogowski Coil Integrator

Dimensions:

50.6

103.7

106.3

50.6

42.3

45
Figure 1: Top View

48.3
25.5

62A

42.3

A
90.5
Figure 2: Side View

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Chapter 2: Hardware Overview

48.3

A-A ( 1 : 1 )103.3
Figure 3: Front view3.9” (100mm)

3.5” (90mm)
Figure 4: Side view of Power Supply unit

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RIK mV0-333mV Rogowski Coil Integrator

Figure 5: Single Integrator

2.2 Installation
The installation of the RIK mV integrator requires the user to simply connect the Rogowski coil
CT (sold separately) to the integrator and wire the 333mV output to the power meter or electrical equipment which will receive the signal. If the system is single phase or there are two phases
only the phases that need the CT will need to be connected to the input of the integrator.

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Chapter 2: Hardware Overview
The diagram below illustrates how to connect the integrator.
SourceS

IN-

IN+

S

CH3IN-

IN+

CH2S

IN-

IN+

S

24V-

24V+

V+

V+

V-

V-

24Vdc Output
Power Supply

CH1AcuCT RIK
Rogowski Integrator

CH3SUM+A

B

C

SUM-

Out+

CH2

Out-

Out+

CH1

Out-

Out+

N

100-240Vac Input
Power Supply
GND

N

L

100-240Vac-24Vdc Power Supply

Three Phase Integrator

Load

Out-

Source

brown

white

V+

S

V+

V-

V-

24Vdc Output
Power Supply-RCT +RCTTOP

Gnd-24V +24V
BOTTOM

AcuCT
RogowskiIntegrator

100-240Vac Input
Power Supply
GND

N

L

100-240Vac-24Vdc Power Supply

Output-OUTA+OUTNLoad

Single Phase Integrator

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RIK mV

0-333mV Rogowski Coil Integrator

Input:The provided Rogowski coils are the input to the integrator. Connect the Rogowski coil leads
to the input channel on the integrator. The white leads of the CT are the positive wire and thebrown lead is the negative wire.
•Connect the white lead to ‘IN+’ or ‘RCT+’ and the brown lead to ‘IN-’ or ‘RCT-’. The Shield ofthe Rogowski coil should be left floating. Open the coil by pulling apart the black connector of the CT.

•Open the coil by pulling apart the black connector of the CT.

•Install the CT around the conductor to be measured. Arrow on the Rogowski coil connector
should be point to load.

•Re-attach the coil together.

•Repeat above steps if using more than one CT.

Ensure that the CT connected to each channel of the integrator is around the correct phase/linevoltage.
Output:Connect each output channel to the meter or equipment with 0-5V/0-10V input.
•'OUT+' is to be connected to the positive input terminal of meter.

•'OUT-' is to be connected to the negative input terminal of meter.

Power Supply: (Sold Separately)
The RIK mV requires 24Vdc power to operate. There is a 100-240Vac (50/60Hz) power adapterthat is included to provide this power.
•

Connect the input power supply that is between 100-240Vac to the 'L' and 'N' terminals ofthe power supply.

•

Connect the DC output of power supply to the RIK's '24V+' and '24V-' terminals.

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Chapter 2: Hardware Overview
2.3 Configuration
One or three sets of dip switches are used to configure corresponding current ranges withoutput ratings.
When the dip switch is in the up position the dip switch is considered to be Off. When the dip
switch is in the down position the dip switch is considered as On.
Configure each channels dip switches to output the desired range. For example to measure
current rated for 1000A the dip switches 1 through 8 for the three channels must be configured
to be 'OFF', 'OFF', 'OFF', 'OFF', 'ON', 'OFF', 'ON' and 'OFF' respectively.
•Enter this current ratio into the meter or equipment so it can read accurately from theintegrator.
Table 1: Three Phase Integrator Current Ratio Table
12345678500:333mV

OFF

OFF

OFF

OFF

OFF

ON

ON

OFF

1000:333mV

OFF

OFF

OFF

OFF

ON

OFF

ON

OFF

2500:333mV

OFF

OFF

OFF

ON

OFF

OFF

ON

OFF

5000:333mV

OFF

OFF

OFF

OFF

OFF

ON

OFF

OFF

10000:333mV

OFF

OFF

OFF

OFF

ON

OFF

OFF

OFF

25000:333mV

OFF

OFF

OFF

ON

OFF

OFF

OFF

OFF

50000:333mV

OFF

OFF

OFF

ON

OFF

OFF

OFF

ON

Table 2: Single Phase Integrator Current Ratio Table
1234

5500:333mV

OFF

OFF

ON

ON

OFF

1000:333mVOFF

ONOFFONOFF

2500:333mV

ON

OFF

OFF

ON

OFF

5000:333mV

OFF

OFF

ON

OFF

OFF

10000:333mV

OFF

ON

OFF

OFF

OFF

25000:333mV

ON

OFF

OFF

OFF

ON

50000:333mV

ON

OFF

OFF

OFF

ON

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RIK mV

0-333mV Rogowski Coil Integrator

2.4 Measurements
For each current range the integrator will be able to measure the current from 0.5% up to 120%of the rated current. That is when the integrator is configured to measure a current rated for
1000A it will measure the current from 5A to 1200A. The integrator will output 333mV at therated current of 1000A and will output its maximum of 399.6mV at 1200A.
The table below provides all the ranges of current that can be measured for each range.

Current Range Setting

14

Primary INput (ARMS)

Sensing Range (A)OutputCT Ratio

500

2.5 to 600

333mV @500A

500:333

1000

5 to 1200333mV @1000A

1000:333

2500

12.5 to 3000

333mV @2500A

2500:333

5000

25 to 6000

333mV @5000A

5000:333

10000

50 to 12000

333mV @10000A

10000:33325000

125 to 30000

333mV @25000A

25000:33350000

250 to 60000

333mV @50000A

50000:333

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Chapter 2: Hardware Overview

Appendix: Key Specifications
SPECIFICATIONSSpecifications

Measurements

Current Measurements

2.5A - 60000A

Output0-333mVac

Sensing Range

500A, 1000A, 2500A, 5000A, 10000A, 25000A and 50000A (User Selectable)

Measurement Channels

3 or 1 (three-phase or single-phase)

Frequency

45Hz to 65Hz

Accuracy+1% Full Scale Error

Channel Cross Talk<-60dB

Maximum Operating Temparature

55oC (131oF)

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RIK mV

0-333mV Rogowski Coil IntegratorACCUENERGY INC.
440 Comstock Road
Toronto, ON M1L 2H6, Canada
V: 1.0.3 Revision Date: Sep 2024
16

Revision Date: Sep 2024 Document # 5060E2101

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