Operation Manual

OmegaGTPlus / BetaGTPlus Measurements
67
Circuits for testing RCD
Testing of portable RCD (PRCD)
5.8.1 Single RCD trip-out time test
Trip-out time measurement verifies the sensitivity of an RCD at different residual
currents.
Trip-out time measurement procedure
Ì Select the RCD test function.
Ì Select Single test mode.
Ì Set test parameters (if necessary).
Ì Connect tested device to the test socket of the instrument (see figures
above).
Ì Connect test lead from PRCD socket of the instrument to the secondary side
of tested PRCD, terminal L.
Ì Press the START key to perform measurement.
Ì Reactivate tested PRCD when both phases are selected to finish with test
with opposite phase.
Example of RCD test result
5.8.2 Automatic RCD test
RCD autotest function is intended to perform complete RCD testing and measurement
of belonging parameters (contact voltage, fault loop resistance and trip-out time at
different residual currents) in one set of automatic tests, guided by the instrument. If any