ABB SACE PR010/T - Specific Test Procedures; Trip Test Procedure; Manual Test Procedure

ABB SACE ABB SACE PR010/T RH0029002 L4408 7/29
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2.2.1 Trip test
The trip test must be performed with the circuit-breaker closed. This test allows a circuit-breaker
trip command to be transmitted so as to check the operation of the relay opening system if
tripping is caused by an overload or short-circuit.
2.2.2 Manual test
The manual test must be performed with the circuit-breaker open.
Two different configurations are available: test with default parameters and with user parameters:
• Test with user parameters: this can be performed by setting the unit in the ELT or MAN
configuration. The protection parameters are at the user's discretion in this mode.
• Test with default parameters: this can only be performed by setting the unit in the ELT
configuration. The protection parameters are preset in this mode.
In the manual test, the tripping time of the electronic relay can be tested with the desired load
condition and allows the user to select the reference protection (e.g.: L, S...), the threshold and
time of the protection (e.g.: I1, t1, I2, t2...), the fault current (If or I-f) and the phase (e.g.: L3,
Ne...).
The  and  keys can be used to scroll the various different options available (type of
protection, time settings, thresholds and curves). Press ENTER to confirm the selection.
Use keys  and  to increase/decrease the protection parameter settings and select the
phase..
The tripping time of the relay will depend on the protection settings. The PR010/T unit displays
the tripping time and test result (OK, FAILED).
NOTE: Reading of the protection settings is automatic for some relays while entry in the manual
mode by the user is required for others.
At the end of the test, the user is aked whether a test report must be recorded. This can then be
downloaded into a PC using the dedicated SD User Interface tool.
CAUTION
When the test parameters are defined, make sure that the value of the
tripping current is higher thasn the threshold of the tested protection.
CAUTION
Make sure that the selected test current does not trip other protections
besides the one being tested: these trips will be signalled as FAILED by the
unit. This can be avoided by changing the threshold values of the
protections and the test current.
CAUTION
The test with the default configuration is available up to version 7.5
(inclusive)
RH0029002.book Page 7 Thursday, May 5, 2011 12:14 PM