GE LPS-D, Инструкция по эксплуатации

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GE Power Management LPS-D Line Protection System 6-
17
6 FUNCTIONAL TESTS (USER SETTINGS) 6.5 ZONE REACH TESTS
6
3. Choose øI (the I
T
angle). V
NOM
is at maximum when øI = øZ – 30°.
øI
1
= [________]° (Zone 1)
øI
2
= [________]° (Zone 2)
øI
3
= [________]° (Zone 3)
øI
4
= [________]° (Zone 4)
4. Calculate V
NOM
for each zone by substituting the values of Z
R
, øZ (POSSEQANG), I
T
, and øI into Equa-
tions 25 and 26 for V
NOM
according to zone.
V
NOM 1
= [________] Volts rms (nominal test voltage for Z1P)
V
NOM 2
= [________] Volts rms (nominal test voltage for Z2P)
V
NOM 3
= [________] Volts rms (nominal test voltage for Z3P)
V
NOM 4
= [________] Volts rms (nominal test voltage for Z4P)
NOTE: If Zone 4 is reversed (Protection Setting 408: Z4DIRECTN = REVERS), remember to add 180° to
both the test current angle,
øI
4
, and the impedance angle, øZ
4
. If Zone 4 has a non-zero offset, use the
ALPS-Test software to calculate V
NOM 4
.
5. Record V
NOM n
, I
T
, and øI
n
in the space provided in the appropriate Zone reach test.
Table 6–2: TEST CURRENT RANGES FOR PHASE-TO-PHASE REACH
Z
G
Reach
( I
n
= 5 A)
I
T
(A) Z
G
Reach
( I
n
= 1 A)
I
T
(A)
0.1 to 2.5 10 0.5 to 12.5 2
2.5 to 6.0 8 12.5 to 30.0 2
6.0 to 12.0 5 30.0 to 60.0 1
12.0 to 20.0 3 60.0 to 100.0 0.6
20.0 to 30.0 2 100.0 to 150.0 0.4
30.0 to 40.0 1.5 150.0 to 200.0 0.3
40.0 to 50.0 1.0 200.0 to 250.0 0.2