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RIK 1AR
Relay Class Integrator
User's Manual
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Copyright © 2022 V1.0.2
This manual may not be altered or reproduced, in whole or in part, by any means without the expressed written consent of Accuenergy
(Canada) Inc.
The information contained in this document is believed to be accurate at the time of publication, however, Accuenergy (Canada) Inc.
assumes no responsibility for any errors which may appear here and reserves the right to make changes without notice. Please ask the local
representative for the latest product specifications before ordering.
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Please read this manual carefully before installation, operation, and maintenance of the 1AR Rogowski Coil Integrator Kit.
The following symbols in this manual are used to provide warning of the danger or risk during the installation and operation of the unit.
Electric Shock Symbol
danger to personal health.
: Carries information about procedures which must be followed to reduce the risk of electric shock and
Safety Alert Symbol: Carries information about circumstances which, if not considered, may result in injury or death.
This mark indicates that this product is UL Listed.
Installation and maintenance of the 1AR Rogowski Coil Integrator Kit should only be performed by qualified, competent professionals who
have received training and show have experience with high voltage and current devices.
Accuenergy (Canada) Inc. shall not be responsible or liable for any damages caused by improper device installation and/or operation.
WARNING: Disconnect power supply before making electrical connections.
WARNING: Current Transformers (CT’s) should be installed by a trained electrician or technician.
WARNING: The secondary circuit of a CT should not be opened when current is flowing through the primary circuit.
The product is protected by reinforced insulation
Application around and removal from UNINSULATED
HAZARDOUS LIVE conductors is permitted
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Table of Contents
Chapter 1: Introduction ...................................................................................................................................................... 3
1.1 Overview
1.2 What's Required
...................................................................................................................................................................................... 3
.......................................................................................................................................................................... 3
Chapter 2: Installation ........................................................................................................................................................ 4
2.1 Hardware Overview
2.2 Installation
2.3 Configuration
2.4 Measurements
................................................................................................................................................................................... 5
..................................................................................................................................................................... 4
............................................................................................................................................................................... 6
............................................................................................................................................................................. 6
Appendix ............................................................................................................................................................................. 7
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Chapter 1: Introduction
Chapter 1: Introduction
1.1
Overview
The Relay-Class 1AR Rogowski Integrator Kit (RIK) is designed to provide users with an easy-to-install, plug-and-play solution that can be used
with any protection relay, power meter, or device with a 1A nominal current input. The flexibility of Rogowski Coil CTs reduces installation
complexity and is ideal for a variety of applications or unique configurations where spatial constraints may limit the use of rigid-body CT
solutions.
The integrator kit is rated for class 5P20 (IEC 61869-2). This means that if the primary current is 20 times the rated primary current of the
1AR, it will be able to sense and measure the current with an accuracy of 5%. The 1AR is user-configurable and can measure current from
0.25A to 100kA. Additionally, it can be used on systems that operate at both 50Hz and 60Hz, further increasing its utility across industries.
1.2
What's Required
The Rogowski Coil Kit includes a single-phase integrator unit with five, configurable CT ratios for the current input channel and requires a
24Vdc power supply to power the integrator. The integrator can be surface-mounted, or DIN rail mounted; the power supply, which is sold
separately, is designed to be mounted on DIN rail. One Rogowski coil (model RCTxx-1000; available in sizes from 16” to 47”) is required to
measure the current and is sold separately.
Rogowski Coil Input
1
One channel for a flexible rope-style CT
1A Output
2
One channel, 1A output
Power On Light
3
Indicates that the RIK is powered up
Overtemp Light
4
Indicates that the unit is over the
specified temperature limits
CT Configurator
5
Five field configurable CT ratios
Power Supply
6
Model PSU -240-24
Power Supply Input
7
Power Supply Input (24Vdc)
Flexible Rogowski Coil
8
Current Transformer
Model RCTxx-1000 CT; sizes available
from 16” to 47” inches (sold separately)
Coil Input Lead
9
Rogowski CT lead for connection with RIK integrator
(sold separately)
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5.35” (136.0mm)
1 2 3 4
5.35” (136.0mm)
TB2
+
TB1
1 2 3
2.44”
(62.0mm)
(62.0mm)
m)
3.50” (
89.0mm)
RIK 1A Relay Class Integrator
Chapter 2: Installation
The installation method is introduced in this chapter. Please read this chapter carefully before beginning installation.
2.1
Hardware Overview
A complete 1AR Rogowski Integrator Kit is comprised of the integrator and a 24Vdc, 240W power supply (sold separately) mounted on a DIN
rail along with one Accuenergy RCTxx-1000 Rogowski coil (sold separately)
Dimensions:
2.48” (63.0mm)
4.47” (113.5mm)
4.47” (113.5m
2.44” (62.0mm)
2.48”(63.0mm)
1.42”(36.0mm)
+V ADJ.
DC OK
3.50” (89.0mm)
4.93” (125.2mm)
1.89” (48.0mm)
4.93” (125.2mm)
0.98” (5.0mm)
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CH1
100-240Vac
Input Power
Power Supply
24Vdc Output
Power Supply
CH1
2.2
Installation
The following steps outline the installation process:
Connect a Rogowski coil CT (model RCTxx-1000 in any length) to the integrator
1.
2.
Wire the 1A output to the protection relay or power meter which will take the signal
The diagram below illustrates how to connect the integrator.
Source
Out-
IN+
S IN-
Chapter 2: Installation
V+
Out+
1AR
V+
100-240Vac-24Vdc
Rogowski
Integrator
GND
+24V
GND
V-
V-
L
N
Load
Input
The Rogowski coil provides the input to the integrator. Connect the Rogowski coil to the input channel on the integrator. Be sure to observe
the correct wire polarity: the white lead is positive (+) and the brown lead is negative (-).
Connect the white lead to 'IN+' and the brown lead to 'IN-'. The Shield of the Rogowski coil should be left floating.
•
Open the coil by pulling apart the black connector of the CT.
•
Install the CT around the conductor to be measured. Verify the CT is installed with the CT facing the same direction as the current flow
•
direction as indicated by the arrow on the black connector.
Connect the coil back together.
•
Output
Connect the output channel to the protection relay or the 1A current input on the power meter.
The 'OUT+' is to be connected to the positive current terminal of the relay/meter.
•
The 'OUT-' is to be connected to the negative current terminal of the relay/meter.
•
Power Supply
The RIK-1AR requires 24Vdc, 240W to operate. The Accuenergy PSU-240-24 power supply requires a 100-240Vac (50/60Hz) input and
outputs 24Vdc to power the Integrator.
Connect the input power supply that is between 100-240Vac to the 'L' and 'N' terminals of the power supply.
•
Connect the V+ and V- of the power supply to the +24Vdc and GND terminals of the Integrator.
•
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RIK 1A Relay Class Integrator
2.3
Configuration
The face of the integrator has a set of dip switches that are used to configure the current range for the current channel. When the dip switch
is in the up position, the dip switch is ON. When the dip switch is in the down position, the dip switch is OFF.
Configure the channel dip switch to output the desired range. For example, to measure current rated for 500A, the dip switches 1 through 5
must be configured to 'OFF', 'OFF', 'ON', 'OFF', 'OFF'. The table below outlines the position of the dip switches for the desired current ranges.
Table 1 - Current Ratio Table
50:1A ON OFF OFF OFF OFF
200:1A OFF ON OFF OFF OFF
500:1A OFF OFF ON OFF OFF
2000:1A OFF OFF OFF ON OFF
5000:1A OFF OFF OFF OFF ON
2.4
Measurements
For each current range, the Integrator will be able to measure the current from 0.5% up to 2000% of the rated current. When the integrator
is configured to measure a current rated for 500A, it will measure the current from 2.5A to 10000A.
The table below provides all the ranges of current that can be measured for each range.
Table 2 - Current Range Configurations
Primary Input (Arms)
50
200
500
2000
5000
1
2
3
4
5
Sensing Range (A)
0.25 to 1000
1 to 4000
2.5 to 10000
10 to 40000
25 to 100000
Output
Relay Class Output CT Ratio
1A @ 50A
1A @ 200A
1A @ 500A
1A @ 2000A
1A @ 5000A
20A @ 1kA
20A @ 4kA
20A @ 10kA
20A @ 40kA
20A @ 100kA
50:1A
200:1A
500:1A
2000:1A
5000:1A
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Appendix
Table 3 - Key Specifications
Current Range 0.25A – 100000A
Range
Output
0-1A
Nominal Current 1A
Accuracy 1% at 1A, 5% at 20A
Accuracy Limit Factor (ALF)
Phase Maximum Error 1 degree
Power Requirements 24Vdc, 240W
Class
Continuous Thermal Current
Short-Time Thermal Current 20A
Short-Time Thermal Current Maximum Duration 4 seconds
Setting Time to Full Scale <100μs
Operating Temperature
Overload Protection Thermal
Operating Humidity Non-condensing, 0 to 95% RH
Mounting
Measurement Channels
Frequency Range
Impedance/Burden
Nominal Current 1A
Full Scale Maximum Error
Certifications
DIN TS-35/7.5 or 15 (DIN 43880) or Panel
SPECIFICATIONS
50A, 200A, 500A, 2000A, 5000A rated input (field
configurable)
50/60Hz
0.25Ω
20
5P20 (IEC 61869-2)
150% (1.5A)
-25°C to 70°C / -13°F to 158°C
1
1% @ 1A, 5% @ 20A
UL Listed (E359521), CE Mark
Appendix
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MAKE ENERGY USAGE SMARTER
Revision Date: May 2022
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