GE 489 - Manual (Page 227)

GE Multilin 489 Generator Management Relay 7-15
7 TESTING 7.3 ADDITIONAL FUNCTIONAL TESTS
7
f) TEST RESULTS
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
CALCULATED MEASURED CALCULATED MEASURED CALCULATED MEASURED
Minimum Pickup
TEST PHASE A PHASE B PHASE C
CT 5 × CT CT 5 × CT CT 5 × CT
Single Infeed Fault
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
NE
UT
R
AL
1
A
H
G
F
1
A
/5A
1
A
/5A
1
A
/5A
1
A
/5A
1
A
/5A
1
A
/5A
C
OM
C
OM
C
OM
C
OM
C
OM
PHASE a PHASE b PHASE c PHASE A PHASE B PHASE C
C
OM
C
OM
C
OM V
a
V
b
V
com V
c
H9 G3 G6 H4 H7 H1 F10
A B C N A B C N
V V V V I I I I
3 PHASE VARIABLE AC TEST SET
GROUND INPUTS
NEUTRAL END CT's OUTPUT CT's
808822A2.CDR
PHASE
VOLTAGE INPUTS
G10 H3 H6 G5 G8 H2 G9 H10 G4 G7 G2 H5 H8 G1
AUTOMATIC CT
SHORTING
BAR
VC
VA
VB