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5.4 PHASE-TO-PHASE ZONE REACH TESTING
3 PHASE, 4 WIRE
VOLTAGE SOURCE
PHASE SEQUENCE:
A, B, C
SINGLE PHASE
CURRENT SOURCE
5
START
START
PRECISION TIMER
Table 5–2:
PHASE
INPUT Y
UNDER TEST
(TERMINAL
BLOCK
NUMBER)
AB
C1
BC
C3
CA
C5
5-18
VA
VA
VB
VB
VC
N
I
op
N
INPUT X
(TERMINAL
BLOCK
NUMBER)
C3
C5
C1
Figure 5–3: PHASE-REACH TIMER TEST CONNECTIONS
ALPS Advanced Line Protection System
5 FUNCTIONAL TESTS (FACTORY SETTINGS)
C9
C10
C11
VC
C12
X
Y
C2
C4
C6
A9
A25
A1
+
RATED DC POWER
SUPPLY
48, 125, 230 V DC
A17
A2
A18
RELAY
UNDER
TEST
X and Y are connected
to produce a phase-to-
phase fault. See the
Table below.
Programmable
Contact A1
CASE GROUND
SURGE GROUND
GE Power Management
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