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6 COMMISSIONING
Activate only protection elements 50G and 67G and set the relay as follows:
67G SETTINGS
Function
MTA
Direction
Polarization
Block Logic
Pol V Threshold
Configure one of the outputs to be activated only by unit 50G.
Apply the following tests:
ELEMENTS
50G/67G
GEK-113328A
ENABLED
-45 Deg
FORWARD
VO
PERMISSION
10 V
PHASE UNDER TEST
POLARIZATION PHASE
CHANNE
MAGNITUDE
CHANNEL
L
MOD
ARG
IG
2 A
0º
VI
VII
VIII
G650 Generator Protection & Control System
6.12 DIRECTIONAL ELEMENTS (67N, 67G)
50G SETTINGS
Function
Input
Pickup Level
Trip Delay
Reset Delay
ELEMENT TRIP
MAGNITUDE
MOD
ARG
60V
0º
NO
60V
180º
YES
0º
0º
6.12.2 67G ELEMENT
ENABLED
PHASOR (DFT)
0.50 A
0.30
0.00
6-15
6
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