ABB Relion 670 Series Commissioning Manual page 197

1MRK 506 371-UUS E
1. Connect voltages to the IED according to valid connection diagram and figure 49.
2. Set Vn (rated voltage) to the V1 inputs and increase V2 voltage until differential voltage is 1.5 ·
operating level (
3. Switch on the test set. Measure the time from activation of the PICKUP signal until TRIP
signal is activated.
4. Check the measured time by comparing it to the set trip time
5. Increase the voltage until PICKUP signal resets. Measure the time from reset of PICKUP signal
to reset of TRIP signal.
6. Check the measured time by comparing it to the set trip reset time
11.6.5.4 Final adjustment of compensation for VT ratio differences
Procedure
1. With the protection in test mode, view the differential voltage service values in each phase on
the local HMI under Main menu/Test/Function status/Voltage protection/
VoltageDiff(PTOV,60)/VDCPTOV:x.
2. Record the differential voltages.
3. Calculate the compensation factor
For information about calculation of the compensation factor, see the application manual.
4. Set the compensation factors on the local HMI under Main menu/Settings/Settings group
N/Voltage protection/VoltageDiff(PTOV,60)/VDCPTOV:x
5. Check that the differential voltages are close to zero.
11.6.5.5 Completing the test
continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
11.6.6 Loss of voltage check LOVPTUV (27)
Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
11.6.6.1 Measuring the trip limit of set values
1. Check that the input logical signals BLOCK, CBOPEN and BLKU are logical zero.
2. Supply a three-phase rated voltage in all three phases and note on the local HMI that the TRIP
logical signal is equal to the logical 0.
3. Switch off the voltage in all three phases.
After set
HMI.
Line distance protection REL670
Commissioning manual
VDTrip ).
The IED voltage inputs should be connected to the VTs according to valid
connection diagram.
in this chapter.
tTrip time a TRIP signal appears on the corresponding binary output or on the local
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RF_x for each phase.
Testing functionality by secondary injection
tTrip .
tReset .
TESTMODE setting to Disabled .
"Requirements" and
Section 11
SEMOD175258-183 v2
SEMOD175258-208 v2
SEMOD175023-3 v5
SEMOD175023-7 v7
191