GE LPS-O - Page 128

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LPS-O Line Protection System GE Power Management
4.2 GENERAL RELAY TESTS 4 ACCEPTANCE/PERIODIC TESTS
4
Figure 4–3: PHASE TO GROUND TEST CONNECTIONS
3 PHASE, 4 WIRE
VOLTAGE SOURCE
PHASE SEQUENCE:
A, B, C
SINGLE PHASE
CURRENT SOURCE
CONTINUITY TESTER
RATED DC POWER
SUPPLY
48, 125, 230 V DC
A25
A9
C10
C11
C12
Y
C2
C4
C6
C9
A18
A2
N
I
op
N
VC
VB
VA
VA
VB
VC
+
CASE GROUND
SURGE GROUND
Programmable
Contact A1
Y will be
connected to
IA, IB, or IC.
See the table
below.
RELAY
UNDER
TEST
A1
A17
Phase Under Test INPUT Y
Terminal Block #
AG C1
BG C3
CG C5