Function Revision History; Verifying The Signals And Settings - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
11.4.14.1

Function revision history

Document
revision
A
B
C
D
E
F
G
H
11.4.14.2

Verifying the signals and settings

The Phase preference logic function PPLPHIZ is tested with a three-phase testing equipment for
distance protections. PPLPHIZ is tested in co-operation with the Distance protection zone, quadrilateral
characteristic function ZMQPDIS (21). The distance protection and the phase preference logic shall be
set to values according to the real set values to be used. The test is made by means of injection of
voltage and current where the amplitude of both current and voltage and the phase angle between the
voltage and current can be controlled.
During the test the following binary signals (outputs) shall be monitored:
• Trip signal from distance protection
• Trip 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 ground 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-ground faults with one phase current are tested. The result shall be according to
36. It should be checked that the fault will give phase-to-phase voltage, phase-to-ground voltage,
zero-sequence voltage and phase current so that the conditions set for the logic are fulfilled.
Table 36:
OperMode
No Filter
No Pref
1231c
1321c
123a
132a
213a
Table continues on next page
162
Product History
revision
2.2.1 -
2.2.1 -
2.2.2 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 Setting ranges and setting descriptions have been updated in order to make the function
more user friendly. The added logic takes over if the relay detects the two faulty phases
within 20 ms and allows a larger margin of undervoltage to detect the faulty phases.
2.2.5 -
Operation at different combinations of faults and operation mode
Fault type/Faulted phase current to the IED
A_BG/IA A_BG/IB
Trip Trip
Trip Trip
Trip No Trip
No Trip Trip
Trip No Trip
Trip No Trip
No Trip Trip
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B_CG/IB B_CG/IC C_CG/IA
Trip Trip Trip
Trip Trip Trip
Trip No Trip No Trip
No Trip Trip Trip
Trip No Trip Trip
No Trip Trip Trip
Trip No Trip Trip
1MRK 504 165-UUS Rev. J
GUID-E2FF644E-DD3A-4549-B15A-2395B9709DA6 v2
GUID-F84417C1-0C2B-48E3-AE1D-F6F07F98F76A v1
Table
C_AG/IC
Trip
Trip
Trip
No Trip
No Trip
No Trip
No Trip
Transformer protection RET670
Commissioning manual