ABB SACE ABB SACE PR010/T RH0029002 L4408 17/29
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The trip time settings of the relays during the tests will depend on the settings of the protections.
The PR010/T unit will display the trip time and test result (OK; FAILED).
At the end of the test, the user is asked if he wishes to record a test report, which can then be
downloaded into a PC.
3.3.3 Trip test
The trip test must be performed with the circuit-breaker closed.
This test allows a circuit-breaker opening command to be transmitted, thus checking the
functionality of the opening system of the relay itself if tripping is caused by an overload or short-
circuit.
3.3.4 Module Test
+24Vdc Auxiliary Power must be available for the Module Test.
During the contact module test ( module PR120/K for PR12x series relays and contact S51/P1 for
PR33x series relays), all the available contacts are momentarily excited (4 or 5 on module PR120/
K and 1 for S51/P1). The user is responsible for checking the physical conditions.
Confirmation that the command has been transmitted is displayed by the PR010/T unit.
3.3.5 S and G selectivity
The zone selectivity tests can only be performed if an auxiliary power supply is available and with
the circuit-breaker open.
The commands available in the unit excite the relay's zone selectivity outputs for the respective
protections (S and G), thus allowing the wiring to be checked in the installations in which they are
wired.
There is a dedicated command in the menu to release the stimulus on the outputs.
3.3.6 RC Test
This test allows a simulated signal to be transmitted to the RC sensor, the current of which, when
read by the relay, causes the circuit-breaker to open, thus checking the residual current reading
functionality.
RH0029002.book Page 17 Thursday, May 5, 2011 12:14 PM
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