Subscribe to Our Youtube Channel
Related Manuals for PEM RCTrms
Summary of Contents for PEM RCTrms
- Page 1 ROGOWSKI CURRENT WAVEFORM TRANSDUCERS INSTRUCTIONS FOR USE RCTrms & RCTrms-3ph POWER ELECTRONIC MEASUREMENTS Ltd. Tel: +44 115 946 9657 Email: info@pemuk.com • Web: www.pemuk.com October 2023...
-
Page 2: Table Of Contents
INTRODUCTION ................3 TECHNICAL SPECIFICATION ............3 STANDARDS AND APPROVALS ............. 4 OVERVIEW RCTRMS ..............5 OVERVIEW RCTRMS-3PH ............. 6 SAFETY AND PRE-USE CHECKS ............7 CONNECTIONS AND CABLING............9 SWITCHING ON ................10 OBTAINING THE BEST MEASUREMENT ........11 CLEANING AND DECONTAMINATION ......... -
Page 3: Introduction
These warnings are identified by the following symbol: The intended use is for the measurement of AC current. PEM accepts no responsibility for any damage resulting from careless use, or failure to observe these instructions. -
Page 4: Standards And Approvals
Supply Voltage 12Vdc (-10%) –to- 24Vdc (+20%) Supply Power RCTrms 0.7W (at rated output) RCTrms-3ph 2.1W (at rated output) Supply Isolation 2.0kV dc Environmental Indoor use / Altitude up to 2000m Installation Category III, Pollution Degree 2. Max. Rel. Humidity: 80% up to 31... -
Page 5: Overview Rctrms
OVERVIEW RCTrms 1. Rogowski coil (loop). 2. ‘Free-end’ of the Rogowski coil 3. Ferrule (the connecting mechanism for closing the Rogowski coil). 4. Cable connecting the Rogowski coil to the integrator - doubly screened low noise co-axial cable. The Rogowski coil and connecting cable have double or re-enforced insulation. -
Page 6: Overview Rctrms-3Ph
OVERVIEW RCTrms-3ph 1. Rogowski coil (loop). 2. ‘Free-end’ of the Rogowski coil 3. Ferrule (the connecting mechanism for closing the Rogowski coil). 4. Cable connecting the Rogowski coil to the integrator - doubly screened low noise co-axial cable. The Rogowski coil and connecting cable have double or re-enforced insulation. -
Page 7: Safety And Pre-Use Checks
2kV peak. The removable silicone sleeve supplied with the coil provides additional mechanical protection only. The rating is derived from the following standard test: All coils supplied by PEM including the ferrule connecting the coil to the cable are flash tested for 1 minute at 4kVrms using a 50Hz sinewave. - Page 8 If the coil is to be left in-situ for any period of time or is used in an environment where the coil is subject to vibration the locking nut should be engaged as shown in the diagram below. The locking mechanism must not be actuated at temperatures below 0 Care must be taken not to over-tighten the locking nut.
-
Page 9: Connections And Cabling
CONNECTIONS AND CABLING RCTrms RCTrms-3ph BNC:BNC SPLIT Where the OPTIONAL BNC CONNECTOR is supplied check that the correct coil is connected to the integrator. The cable from both the coil and the integrator should have the same four or five digit ID label XXXX close to the BNC connection. -
Page 10: Switching On
In some electrically noisy environments it is best practice to use a shielded twin core power cable. In such cases the shield should be connected to the ground of the external dc power supply and left open circuit at the end connected to the RCTrms. LOAD... -
Page 11: Obtaining The Best Measurement
The sensitivity of the RCTrms to currents that do not pass through the coil is very small, provided that such currents are no greater than the RCTrms rating or such currents are relatively distant from the coil. -
Page 12: Cleaning And Decontamination
In the event of a defect where the transducer has not been misused the RCT should be returned to PEM with all freight charges to be paid by the customer. Correction shall be in the form of repair or replacement.
Need help?
Do you have a question about the RCTrms and is the answer not in the manual?
Questions and answers