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Summary of Contents for AccuEnergy RCT16
- Page 1 AcuCT Flex Series Rogowski Coil Installation Guide...
- Page 2 Copyright © 2024 v1.0.4 All Accuenergy brands and trademarks in this document are the property of Accuenergy Inc. All other brands and trademarks may be the property of the respective owners of these rights. This instruction may not be altered, copied or reproduced in whole or in part by any means without the expressed written consent of Accuenergy.
- Page 3 Safety Warning: Contains information about circumstances which if not considered may result in personal injury or death. Installation and maintenance of the AcuCT Flex Series Rogowski coil shall only be performed by qualified, competent professionals who have received training and have experience with high voltage and current devices.
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Page 4: Table Of Contents
Rogowski Coil Leads ......................9 Extending the Leads ......................10 Rogowski Coil Output ..................11 CT Ratio / Output Programming ..................11 Accuenergy Products ....................11 Third Party Devices ..................... 12 Appendix ........................ 14 Troubleshooting & Measurement Verification ..............14... -
Page 5: Introduction
Introduction Introduction • The AcuCT Flex Series is a rope-style Rogowski coil current transformer (CT) that is used to safely measure alternating electrical current traveling through a primary conductor such as a cable or busbar in an electrical panel. •... -
Page 6: Technical Specifications
Rogowski Coil - Installation Guide Technical Specifications Rated Current Current Range 5A to 50,000 A Accuracy 0.5% Mechanical & Environmental Orange thermoplastic rubber, UL 94V-0 rated flame Case Material retardant Lead Wires 1000V UL Style 20940, 26AWG Operating Temperature -20°C to 70°C / -4°F to 158°F Temperature Drift +/- 0.07% per °C Operating Humidity... - Page 7 Technical Specifications Dimensions Coil Diameter Wire Lead Length 0.61” (15.5 mm) 78.74” (2000.0mm) Coil Length Window Sizes External Diameter RCT Model Window Size External Diameter Coil Length RCT16 4.17”, 106.0mm 5.63”, 143.0mm 15.75”, 400.0mm RCT24 7.01”, 178.0mm 8.13”, 207.0mm 23.62”, 600.0mm RCT36 10.67”, 271.0mm 11.89”, 302.0mm...
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Page 8: Installation
Rogowski Coil - Installation Guide Installation The AcuCT Flex has a latch that allows you to open and close the Rogowski coil. To open the AcuCT Flex, press inwards on the outer ribbed connector and pull the two ends apart to open it. Step 1 Press inward on two sides... -
Page 9: Rogowski Coil Leads
Installation The AcuCT Flex can be safely installed on busbars rated up to 1000V. When installing the AcuCT Flex on busbars higher than 1000V, it is recommended to use insulation on the busbar to protect the Rogowski coil. The AcuCT Flex can be rested on top of the busbar and will measure accurately if the coil is fully closed around the conductor. -
Page 10: Extending The Leads
Rogowski Coil - Installation Guide • White Lead – Positive • Brown Lead – Negative • Shield Wire – Should be left floating WARNING: The shield wire on the AcuCT Flex should be left floating and should not be grounded. Extending the Leads The AcuCT Flex leads can be extended up to a maximum of 50 meters. -
Page 11: Rogowski Coil Output
NOTE: For custom outputs for the RCT please contact Accuenergy Sales for more information. CT Ratio / Output Programming Accuenergy Products For Accuenergy meters the CT ratio must be programmed into the meter so it can correctly scale the secondary reading of the AcuCT Flex. See table below for details. - Page 12 Rogowski Coil - Installation Guide Each RCT model will have a specific label rating used to program the CT ratio in Accuenergy meters, see image below. Here the AcuCT Flex is rated for 2500A, the value 2500 will need to be programmed into the meter.
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Page 13: Third Party Devices
Rogowski Coil Output Third Party Devices To interface the AcuCT Flex with third party devices, the mV output must be programmed into the device to scale the readings accordingly. If using a controller/PLC to scale the values read by the AcuCT Flex RCT model, the following table will help understand the relationship between the primary current and secondary output. -
Page 14: Appendix
Rogowski Coil - Installation Guide Appendix Troubleshooting & Measurement Verification To troubleshoot and verify the measurements of the AcuCT Flex, users can measure the mV output of the Rogowski coil and compare the reading to the primary current measurement. Depending on the model of the RCT, each coil will output 120mV at the full range of the current rating. - Page 15 Appendix 2. Next, use a multimeter that supports “AC mV” and connect the white lead from the AcuCT Flex RCT model to the positive of the multimeter, and connect the brown lead from the RCT to the negative of the multimeter. 20mV AC mV 3.
- Page 16 Rogowski Coil - Installation Guide How to calculate the secondary signal using the measured clamp meter reading: NOTE: Assume RCTxx-1000A is used. Secondary Signal = (167A/1000A) x 120mV Secondary Signal = 20.04mV This calculation and measurement method can be used to help verify the accuracy of the RCT and to ensure it’s functioning correctly.
- Page 17 MAKE ENERGY USAGE SMARTER For additional help please reach out to: Accuenergy Sales Accuenergy Technical Support Email: marketing@accuenergy.com Email: support@accuenergy.com Tel: 416-497-4100 ext. 1 Tel: 416-497-4100 ext. 3 ISO 9001, 14001 & 45001 Certified Accuenergy Inc. Los Angeles - Toronto - Pretoria North America Toll Free: 1-877-721-8908 Web: www.accuenergy.com...
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