Completing The Test; Phase Preference Logic Ppl2Phiz; Function Revision History; Verifying The Signals And Settings - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
11.4.14.3

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to the original values, if changed for testing purposes.
11.4.15

Phase preference logic PPL2PHIZ

Prepare the IED for verification of settings outlined in Section
settings".
11.4.15.1

Function revision history

Document
revision
A
B
C
D
E
F
G
11.4.15.2

Verifying the signals and settings

The Phase preference logic function PPL2PHIZ is tested with a three-phase testing equipment
for distance protections. PPL2PHIZ is tested in co-operation with the High speed distance
protection ZMFPDIS. 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
• 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
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.
156
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.
© Copyright 2017 Hitachi Power Grids. All rights reserved
TESTMODE setting to Off .
"Preparing the IED to verify
Table 37. It should be checked that the fault will
Line differential protection RED670
1MRK 505 378-UEN Rev. H
GUID-8BD66BC8-AAC3-41C4-B819-B159361688D2 v5
GUID-E1547542-1407-4488-AD99-2A7D063885A4 v2
GUID-F8B83D26-CCDC-4E1C-940A-F3B47A5AB4B0 v1
GUID-89399120-E87F-4380-8955-37BF1BAB34AF v1
Commissioning manual