ABB RED670 Commissioning Manual page 202

Section 11
Testing functionality by secondary injection
11.6.4.2 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.6.5 Voltage differential protection VDCPTOV (60)
Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
11.6.5.1 Function revision history
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11.6.5.2 Check of undervoltage levels
This test is relevant if the setting BlkDiffAtVLow = Yes.
Check of V1Low
Procedure
1. Connect voltages to the IED according to valid connection diagram and figure 47.
2. Apply voltage higher than the highest set value of VDTrip, V1Low and V2Low to the V1 three-phase
inputs and to one phase of the V2 inputs according to figure 47.
The voltage differential PICKUP signal is set.
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Product History
revision
2.2.1 -
2.2.1 -
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2.2.3 -
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1MRK 505 378-UUS Rev. J
"Requirements" and section
GUID-04679E4E-E0D2-4BA6-A002-4020E52DB973 v1
Line differential protection RED670
Commissioning manual
M6583-85 v4
SEMOD175258-3 v2
"Preparing
SEMOD175258-71 v2
SEMOD175258-75 v3