Measuring Low-Frequency Bearing Currents with PEM’s RCTi & LFR Rogowski sensors
Low-frequency bearing currents silently damage critical rotating machinery through continuous electrical stress at power frequency. PEM's Rogowski sensors - RCTi/25 for permanent installation, or battery powered LFR015 for troubleshooting - provide purpose-built detection with high SNR at power frequencies, enabling early warning protection for hydroelectric generators, turbogenerators and large industrial motors before catastrophic failure occurs.
Technical notes relating to RCTi.
The purpose of these technical notes is to explain any limitations of the device and to also assist the engineer in maximizing the many advantages of the RCTi.
We recommend that you use this instruction sheet in conjunction with the products short-form datasheets and instruction sheets.