GE LPS-O, Инструкция по эксплуатации

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GE Power Management LPS-O Line Protection System 6-
9
6 FUNCTIONAL TESTS (USER SETTINGS) 6.3 ZONE REACH TESTS
6
∠
T = Characteristic timer of the zone.
∠
I = Test current angle with respect to the faulted phase.
Settings and Calculations:
1. Record the following relay settings:
(1201) POSSEQANG = [________]°
(102) Z1PHREACH = [________]
Ω
(Zone 1)
(202) Z2PHREACH = [________]
Ω
(Zone 2)
(302) Z3PHREACH = [________]
Ω
(Zone 3)
(402) Z4PHREACH = [________]
Ω
(Zone 4)
Z1PCHARANG = 90° (fixed for Zone 1)
(203) Z2PCHARANG = [________]° (Zone 2)
(303) Z3PCHARANG = [________]° (Zone 3)
(403) Z4PCHARANG = [________]° (Zone 4)
2. Determine the test current I
T
for Zone 1, Zone 2, Zone 3, and Zone 4 from Table 6–1.
I
T
(Z1R) = [________] Amps rms
I
T
(Z2R) = [________] Amps rms
I
T
(Z3R) = [________] Amps rms
I
T
(Z4R) = [________] Amps rms
3. Choose
∠
I (the I
T
angle). V
NOM
is at maximum when
∠
I =
∠
T – 30°.
∠
I
1
= [________]° (Zone 1)
∠
I
2
= [________]° (Zone 2)
∠
I
3
= [________]° (Zone 3)
∠
I
4
= [________]° (Zone 4)
Table 6–1: TEST CURRENT RANGES FOR PHASE-TO-PHASE REACH
Z
R
REACH
( I
n
= 5 A)
I
T
Z
R
REACH
( I
n
= 1A)
I
T
0.1 to 2.5 10 A 0.5 to 12.5 2 A
2.5 to 6.0 8 A 12.5 to 30.0 2 A
6.0 to 12.0 5 A 30.0 to 60.0 1 A
12.0 to 20.0 3 A 60.0 to 100.0 0.6 A
20.0 to 30.0 2 A 100.0 to 150.0 0.4 A
30.0 to 40.0 1.5 A 150.0 to 200.0 0.3 A
40.0 to 50.0 1.0 A 200.0 to 250.0 0.2 A