Alstom MiCOM P545 - 11.5 On load directional test; 11.6 Signaling channel check (if not already completed)

P54x/EN CM/La4 Commissioning
(CM) 10-64 MiCOM P543, P544, P545 & P546
CM
11.5 On load directional test
This test is important to ensure that directionalized overcurrent and fault locator functions
have the correct forward/reverse response to fault and load conditions.
Firstly the actual direction of power flow on the system must be ascertained, using adjacent
instrumentation or protection already in-service, or a knowledge of the prevailing network
operation conditions.
 For load current flowing in the Forward direction - i.e. power export to the remote line
end, cell [0301: MEASUREMENTS 2, A Phase Watts] should show positive power
signing
 For load current flowing in the Reverse direction - i.e. power import from the remote line
end, cell [0301: MEASUREMENTS 2, A Phase Watts] should show negative power
signing
Note: The check above applies only for Measurement Modes 0 (default),
and 2. This should be checked in [0D05: MEASURE’T. SETUP,
Measurement Mode = 0 or 2]. If measurement modes 1 or 3 are
used, the expected power flow signing would be opposite to that
shown in the bullets above.
In the event of any uncertainty, check the phase angle of the phase currents with respect to
their phase voltage.
11.6 Signaling channel check (if not already completed)
If the aided
scheme signaling channel(s) was/were not tested already in section Error!
Reference source not found. they should be tested now. This test may be avoided only
with the agreement of the customer, or if only the basic scheme is used.