The new Megger LRCD series combined loop and RCD testers offer single phase circuit (LRCD 210) and three phase circuit (LRCD 220) measurement of loop impedance and prospective short circuit current and RCD testing of AC, DC, and selective devices.
Loop testing is carried out without risk of tripping RCDs. Safety features prevent continuity testing on live circuits and loop testing if circuit voltages exceed 50 volts. The Megger LRCD 220 has additional features including high current loop testing, and phase rotation testing.
RCD testing includes selection of tripping current (I) range from 10 milliamp to 500 miliamp (1000 milliamp for the LRCD 220), testing at 1/2I, I, and 5I, ramp testing and selection of phase (0°, 180°).
Combined loop and RCD testers are available from Power Parameters.