ABB Relion 650 Series REL650, Commissioning Manual

Page: 146 / 176

for each individual function in a chain, to be tested next. Remember to set the
parameter
Blocked to Yes , for each individual function that has been tested.
6.10.2 Tripping logic phase segregated output SPTPTRC (94)
Prepare the IED for verification of settings as outlined in 5.1 "Preparing the IED to
verify settings" .
Values of the logical signals for SPTPTRC (94) are available on the local HMI under
Main menu/Tests/Function status/Logic/SPTPTRC(94,1->0)/1:SPTPTRC . The
Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
This function is functionality tested together with other protection functions (ground-
fault overcurrent protection, and so on) within the IED. It is recommended that the
function is tested together with the autorecloser function, or when a separate external
unit is used for reclosing purposes. The testing is preferable done in conjunction with
the protection system and autorecloser function.
6.10.2.1 1p/3p operating mode
In addition to various other tests, the following tests should be performed. They depend
on the complete configuration of an IED.
1. Make sure that TripLockout and AutoLock are both set to Disabled .
2. Initiate different single-phase-to-ground faults one at a time.
Single-phase tripping will only be allowed when an auto-reclose attempt will
follow. Autorecloser STBRREC (79) has functionality such as the long trip time,
CB ready and so on, which can prevent a proper single-phase tripping and auto
reclose. To bypass this problem the fault initiation should be with a test set and
with the auto reclose in full service with a test set connected to the distance
protection function. Consider using an adequate time interval between faults, to
overcome a reclaim time of which is activated by the autorecloser function. Only
a single-phase trip should occur for each separate fault and only one of the trip
outputs (TR_A, TR_B, TR_C) should be activated at a time. Functional outputs
TRIP and TR1P should be active during each fault. No other outputs should be
active.
3. Initiate different phase-to-phase and three-phase faults.
Consider using an adequate time interval between faults, to overcome a reclaim
time which is activated by the STBRREC (79) function. A three-phase trip should
occur for each separate fault and all of the trips. Functional outputs TRIP, all
TR_A, TR_B, TR_C and TR3P should be active at each fault. No other outputs
should be active.
4. Initiate a single-phase-to-ground fault and switch it off immediately when the trip
signal is issued for the corresponding phase.
Section 6
1MRK 506 331-UUS A
Testing functionality
138
Commissioning Manual