GE Multilin 489

CHAPTER 7: TESTING
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL 7–19
7.3.9 Injection Test Setup #3
Setup the 489 device as follows for the Voltage Restrained Overcurrent test.
FIGURE 7–3: Secondary Injection Test Setup #3
Test Phase A Phase B Phase C
operate restrain operate restrain operate restrain
Slope 1
I
x
I
y
Operation
(OK/not
OK)
Slope 2
I
x
I
y
Operation
(OK/not
OK)
Directional
Check
I
x
N/A N/A N/A
I
y
N/A N/A N/A
Operation
(OK/not
OK)
N/A N/A N/A
E10
V
NEUTRAL
1A
HGF
1A/5A
1A/5A
1A/5A
1A/5A
1A/5A
1A/5A
COM
COM
COM
COM
COM
PHASE a PHASE b PHASE c PHASE A PHASE B PHASE C
COM
COM
COM
Va
Vb
Vcom
Vc
H9
G3 G6H4 H7 H1F10
AB C N
ABC N
VV V V
III I
3 PHASE VARIABLE AC TEST SET
GROUND INPUTS
NEUTRAL END CT's
OUTPUT CT's
808822A2.CDR
PHASE
VOLTAGE INPUTS
G10
H3 H6G5 G8 H2
G9 H10
G4 G7 G2H5 H8 G1
AUTOMATIC CT
SHORTING
BAR
V
C
V
A
V
B
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