GE ALPS - Page 168

5-6 ALPS Advanced Line Protection System
GE Power Management
5.2 MEASURING UNIT TESTS 5 FUNCTIONAL TESTS (FACTORY SETTINGS)
5
Figure 5–1: PHASE-TO-PHASE 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
X
C4
C6
C9
A18
A2
N
I
op
N
VC
VB
VA
VA
VB
VC
+
CASE GROUND
SURGE GROUND
Programmable
Contact A1
X and Y will be
connected to
produce a
phase-to-phase
fault. See the
table below.
RELAY
UNDER
TEST
A1
A17
C2
Table 5–1:
PHASE
UNDER TEST
INPUT Y
TERMINAL BLOCK
NUMBER
INPUT X
TERMINAL BLOCK
NUMBER
AB C1 C3
BC C3 C5
CA C5 C1