Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements
64
Circuits for testing RCD
Testing of standard RCD Testing of portable RCD (PRCD)
5.2.10.1 RCD single test
Trip-out time/current measurement procedure
 Select the RCD test function.
 Select Single test mode.
 Set test parameters.
 PRCD: Connect tested PRCD between test socket on the SigmaGT and IEC
appliance connector (see figure above). Depending on the type of PRCD, it may be
necessary to manually switch it on.
 RCD: Connect the SigmaGT main entry to socket protected by tested RCD (see
figure above).
 Press the START key to perform measurement.
 If both current polarities are selected:
 Reactivate tested RCD.
Examples of RCD test result
Displayed results:
Main result ............. last measured results
Sub-results ............ all results are displayed as sub-results
5.2.10.2 Automatic RCD test
RCD autotest function is intended to perform a complete RCD analysis (trip-out times at
different residual currents and current phases for type AC and A RCDs and trip-out
current for both current phases).