7.1 TEST SETUP
500 Ohms
500 Ohms
500 Ohms
500 Ohms
500 Ohms
500 Ohms
RTD
SIMULATION
RESISTORS
OR RESISTANCE
500 Ohms
DECADE BOX
500 Ohms
500 Ohms
500 Ohms
7
500 Ohms
500 Ohms
V
7-2
V C
V A
V B
E10
F10
G9
H9
G10
H10 G3
H3
G4
H4
G5
H5
AUTOMATIC CT
SHORTING
BAR
PHASE a PHASE b PHASE c
GROUND INPUTS
NEUTRAL END CT's
B1
RTD SHIELD
A1
HOT
RTD #1
A2
COMPENSATION
A3
RTD RETURN
A4
COMPENSATION
RTD #2
A5
HOT
A6
HOT
RTD #3
A7
COMPENSATION
A8
RTD RETURN
A9
COMPENSATION
RTD #4
A10
HOT
A11
HOT
RTD #5
A12
COMPENSATION
A13
RTD RETURN
A14
COMPENSATION
RTD #6
A15
HOT
D1
HOT
RTD #7
D2
COMPENSATION
D3
RTD RETURN
D4
COMPENSATION
RTD #8
D5
HOT
D6
HOT
RTD #9
D7
COMPENSATION
D8
RTD RETURN
D9
COMPENSATION
RTD #10
D10
HOT
D11
HOT
RTD #11
D12
COMPENSATION
D13
RTD RETURN
D14
COMPENSATION
RTD #12
g
D15
HOT
D16
ASSIGNABLE INPUT 1
D17
ASSIGNABLE INPUT 2
D18
ASSIGNABLE INPUT 3
SECONDARY INJECTION
TEST SETUP
D19
ASSIGNABLE INPUT 4
D20
ASSIGNABLE INPUT 5
D21
ASSIGNABLE INPUT 6
D22
ASSIGNABLE INPUT 7
D23
COMMON
D24
SWITCH +24Vdc
COMPUTER
C1
AUXILIARY
COMM.
ACCESS
RS485
RS485
C2
C3
BREAKER
STATUS
C4
D25
D26
D27
B2
B3
B4
A16
RS485
RS485
Figure 7–1: SECONDARY CURRENT INJECTION TESTING
489 Generator Management Relay
7.1.2 SECONDARY CURRENT INJECTION TEST SETUP
3 PHASE VARIABLE AC TEST SET
I
I
I
I
V V V V
N
A
B
C
A
B
C
N
G6
H6
G7
H7
G8
H8
G2
H1
H2
G1
PHASE A PHASE B PHASE C
PHASE
VOLTAGE INPUTS
OUTPUT CT's
H12
CONTROL
POWER
H11
FILTER GROUND
G11
SAFETY GROUND
G12
E12
IRIG - B
F12
E11
TRIP COIL
SUPERVISION
F11
E2
R1 TRIP
F1
E1
R
F2
R2 AUXILIARY
E3
F3
R
E5
R3 AUXILIARY
F4
E4
R
F5
R4 AUXILIARY
E6
F6
R
E8
R5 ALARM
F7
E7
G
F8
R6 SERVICE
E9
R
F9
GE Multilin
ANALOG I/O
ANALOG OUTPUTS
ANALOG INPUTS
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A
A
V
A
A
7 TESTING
START
SWITCH
+24VAC
SWITCH
COMMON
START
STOP
TRIGGER
TRIGGER
G
TIMER
G
G
G
G
808818A3.CDR
GE Multilin