Ampcontrol Pty Ltd
– ABN 28 000 915 542
IPM V2 USER MANUAL
IPM2B003 Revision 15
– MAY/18
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 28 of 83
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5
COMMISSIONING AND CALIBRATION
Prior to being put into service, the electrical protection system must be correctly commissioned. This
manual does not cover system commissioning; the full scope of commissioning tests should be
determined during the risk assessment or FMEA covering the design of the electrical protection system.
The following tests can provide guidance on checking the correct operation of the relay during
commissioning. This is not intended to provide an exhaustive commissioning checklist, but should be
considered to be a minimum set of tests.
5.1 Earth Leakage
Test the correct operation of earth leakage circuits by injecting a fault current through the toroid. Ensure
that all relevant tripping circuits operate successfully and that latched trips may be reset in the
appropriate manner.
5.2 Earth Continuity
Test that the Earth Continuity protection is operational by creating an open circuit on the pilot wire.
Ensure that all relevant tripping circuits operate successfully and that latched trips may be reset in the
appropriate manner.
Repeat with a short circuit between the pilot and earth.
5.3 Insulation test
Ensure that a manual insulation test can be successfully conducted via the IPM.
Also check that an automatic insulation test is initiated by the IPM when a START signal is generated.
5.4 Over Current / Motor Overload Current Injection
Test the Over Current / Motor Overload protection by carrying out secondary injection on the CT
terminals of the IPM.
Where Over Current protection is employed, inject 2x FLC (Full Load Current) into one of the CT
terminals and ensure that all relevant tripping circuits operate successfully, in the time expected
according to the settings employed, and that latched trips may be reset in the appropriate manner.
Repeat on the second set of CT terminals and the third set of CT terminals.
If Motor Overload is used, check that all relevant tripping circuits operate successfully, in the time
expected according to the settings employed, and that latched trips may be reset in the appropriate
manner.
5.5 Short Circuit Current Injection
Test the Short Circuit protection by carrying out secondary injection on the CT terminals of the IPM.
Inject a current value relevant for the settings employed into one of the CT terminals and ensure that all
relevant tripping circuits operate successfully, in the time expected, and that latched trips may be reset in
the appropriate manner. Repeat on the second set of CT terminals and the third set of CT terminals.
5.6 Current Detection in CTs
Ensure the integrity of the current-detection CTs by injecting primary current into the CT aperture and
validating the reading on the IPM screen.
