ACCUENERGY RIK 1AR Relay Class Integrator User Manual
- June 8, 2024
- ACCUENERGY
Table of Contents
RIK 1AR
Relay Class Integrator
User’s Manual
RIK 1AR Relay Class Integrator
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.
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: 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 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.
| The product is protected by reinforced insulation
---|---
| Application around and removal from UNINSULATED HAZARDOUS LIVE conductors is
permitted
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.
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
One channel for a flexible rope-style CT -
1A Output
One channel, 1A output -
Power On Light
Indicates that the RIK is powered up -
Overtemp Light
Indicates that the unit is over the specified temperature limits -
CT Configurator
Five field configurable CT ratios -
Power Supply
Model PSU-240-24 (sold separately) -
Power Supply Input
Power Supply Input (24Vdc) -
Flexible Rogowski Coil Current Transformer
Model RCTxx-1000 CT; sizes available from 16” to 47” inches (sold separately) -
Coil Input Lead
Rogowski CT lead for connection with RIK 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:
2.2 Installation
The following steps outline the installation process:
- Connect a Rogowski coil CT (model RCTxx-1000 in any length) to the integrator
- 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.
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.
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
| 1| 2| 3| 4| 5
---|---|---|---|---|---
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)| Sensing Range (A)| Output| Relay Class
Output| CT Ratio
---|---|---|---|---
50| 0.25 to 1000| 1A @ 50A| 20A @ 1kA| 50:1A
200| 1 to 4000| 1A @ 200A| 20A @ 4kA| 200:1A
500| 2.5 to 10000| 1A @ 500A| 20A @ 10kA| 500:1A
2000| 10 to 40000| 1A @ 2000A| 20A @ 40kA| 2000:1A
5000| 25 to 100000| 1A @ 5000A| 20A @ 100kA| 5000:1A
Appendix
Table 3 – Key Specifications
SPECIFICATIONS
Current Range| 0.25A — 100000A
Range| 50A, 200A, 500A, 2000A, 5000A rated input (field configurable)
Output| 0-1A
Nominal Current| 1A
Accuracy| 1% at 1A, 5% at 20A
Accuracy Limit Factor (ALF)| 20
Phase Maximum Error| 1 degree
Power Requirements| 24Vdc, 240W
Class| 5P20 (IEC 61869-2)
Continuous Thermal Current| 150% (1.5A)
Short-Time Thermal Current| 20A
Short-Time Thermal Current Maximum Duration| 4 seconds
Setting Time to Full Scale| <100ps
Operating Temperature| -25°C to 70°C / -13°F to 158°C
Overload Protection| Thermal
Operating Humidity| Non-condensing, 0 to 95% RH
Mounting| DIN TS-35/7.5 or 15 (DIN 43880) or Panel
Measurement Channels| 1
Frequency Range| 50/60Hz
Impedance/Burden| 0.250
Nominal Current| 1A
Full Scale Maximum Error| 1% @ 1A, 5% @ 20A
Certifications| UL Listed (E359521), CE Mark
MAKE ENERGY USAGE SMARTER
Revision Date: May 2022
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References
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