GE LPS-O - T12: Zone 2 Phase Reach Test

GE Power Management LPS-O Line Protection System 6-
11
6 FUNCTIONAL TESTS (USER SETTINGS) 6.3 ZONE REACH TESTS
6
I
T
= [________] A
∠
I
1
= [________]°
3. Connect the relay as shown in Figure 5–1: PHASE-TO-PHASE TEST CONNECTIONS on page 5–7 for
the appropriate phases under test. Set the relay to test mode 14 (Any Zone 1 Phase). The LUI displays:
ANY Z1 PHASE ON
4. Set the voltage inputs to the following values:
VA: 67 volts rms
∠
0°,
VB: 67 volts rms
∠
–120°,
VC: 67 volts rms
∠
+120°.
5. Set the fault current phase angle to
∠
I
1
= [________]° lagging. Note that the leading phase angle is 180°
out of phase with the line to which it is shorted.
6. Set the fault current to
I
T
= [________] A rms. Simultaneously reduce the voltage of the faulted phases and
check that the A1 contact closes when the voltages are within 7% of
V
NOM 1
.
7. Repeat the test for phase BC and CA faults.
6.3.5 T12 – ZONE 2 PHASE REACH TEST
1. Protection Settings:
Z1DISTANCE
(101)
Z1PHASE
= NO
Z2DISTANCE
(201)
Z2PHASE
= YES
(202)
Z2PHREACH
= [________]
Ω
(204)
Z2TIMER
= YES
(205)
Z2P_TIME
= 1.0 sec.
Z3DISTANCE
(301)
Z3PHASE
= NO
Z4DISTANCE
(401)
Z4PHASE
= NO
LINEINFO
(1204)
TRSFMRTYPE
= NONE
2. Record the following values:
V
NOM 2
= [________] V
I
T
= [________] A
∠
I
2
= [________]°
3. Connect the relay as shown in Figure 5–1: PHASE-TO-PHASE TEST CONNECTIONS on page 5–7 for
the appropriate phases under test. Set the relay to test mode 15 (Any Zone 2 Phase). The LUI displays:
ANY Z2 PHASE ON