Completing The Test; Under Impedance Protection For Generator Zgvpdis; Verifying The Settings - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
• Trip signal from distance protection
• Start signal from phase preference logic
1. Connect the test set for injection of voltage and current.
2. Inject voltages and currents corresponding to a phase-to-phase to earth fault within zone
1 of the distance protection function. In the test one of the current inputs (one of the
faulted phases) is disconnected. The remaining current is the fault current out on the
protected line. All combinations of two phase-to-earth faults with one phase current are
tested. The result shall be according to table 37. It should be checked that the fault will
give phase-to-phase voltage, phase-to-earth voltage, zero-sequence voltage and phase
current so that the conditions set for the logic are fulfilled.
Table 37:
OperMode
No Filter
No Pref
1231c
1321c
123a
132a
213a
231a
312a
321a
11.4.16

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.
11.4.17

Under impedance protection for Generator ZGVPDIS

Prepare the IED for verification of settings.
Values of the logical signals for ZGVPDIS are available on the local HMI under Main menu/
Tests/Function status/Impedance/ZGVPDIS (21G, Z<)/1:ZGVPDIS:ZGVPDIS. The Signal
Monitoring in PCM600 shows the same signals that are available on the local HMI.
11.4.17.1

Verifying the settings

Distance protection zones
While measuring operating characteristics, keep the current constant. Keep the current as
close as possible to its rated value or lower, however make sure it is higher than 30% of the
rated current.
158
Operation at different combinations of faults and operation mode
Fault type/Faulted phase current to the IED
L1L2N/IL1 L1L2N/IL2
Trip Trip
Trip Trip
Trip No Trip
No Trip Trip
Trip No Trip
Trip No Trip
No Trip Trip
No Trip Trip
Trip No Trip
No Trip Trip
© Copyright 2017 ABB. All rights reserved
L2L3N/IL2 L2L3N/IL3 L3L3N/IL1
Trip Trip
Trip Trip
Trip No Trip
No Trip Trip
Trip No Trip
No Trip Trip
Trip No Trip
Trip No Trip
No Trip Trip
No Trip Trip
1MRK 504 165-UEN E
L3L1N/IL3
Trip Trip
Trip Trip
No Trip Trip
Trip No Trip
Trip No Trip
Trip No Trip
Trip No Trip
No Trip Trip
No Trip Trip
No Trip Trip
GUID-8BD66BC8-AAC3-41C4-B819-B159361688D2 v4
TESTMODE setting to Off .
GUID-F882501B-6A03-4409-BF70-DE1CF09E5541 v3
GUID-202C5606-5F12-4C00-A12F-02A33EB571D9 v1
GUID-69610335-7C97-4134-8A47-05501AB5C620 v3
Transformer protection RET670
Commissioning manual