Secondary Current Injection Test Setup - GE 489 Instruction Manual

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