GE LPS-O - Page 143

GE Power Management LPS-O Line Protection System 5-
15
5 FUNCTIONAL TESTS (FACTORY SETTINGS) 5.3 PHASE-TO-PHASE ZONE REACH TESTING
5
Figure 5–2: THREE PHASE TEST CONNECTIONS
3 PHASE, 4 WIRE
VOLTAGE SOURCE
PHASE SEQUENCE:
A, B, C
THREE PHASE
CURRENT SOURCE
RATED DC POWER
SUPPLY
48, 125, 230 V DC
A25
A9
C10
C11
C12
C1
C3
C4
C6
C9
A18
A2
N
IA
N
VC
VB
VA
+
CASE GROUND
SURGE GROUND
Pro
g
rammable
Contact A1
RELAY
UNDER
TEST
START
STOP
A1
A17
C2
PRECISION TIMER
STOP
START
C5IB
IC