Siemens SG8158-00 사용자 설명서
Appendix D: Acceptance Test Procedures
74
Siemens Energy & Automation, Inc.
ISGS Acceptance Test
Directional Phase Time Overcurrent (67) Function
(Phase-Phase Connected VTs)
Set the ISGS as follows:
Parameter Set A
Parameter Set A
7103
5000:5 Current Transformer (CT)
1101
Curve SEA 5, Very Inverse
1902
1 A Nominal Pickup
1903
Time Dial per Chart
1905
Impedance to 45°
1907
Direction to Reverse
1908
Trip Matrixed to Trip 1 Contact
6401
Enable 67
1901
Disable Other Conflicting Functions
1501, 1551, 1601, 1651, 1801, 1901, 2001, 2301
Raise 51 Pickup To Maximum
1703
Phase
A B C
Connections
1. Connect the appropriate source of control voltage to terminals 13 (+) and 12 (-).
1. Connect the appropriate source of control voltage to terminals 13 (+) and 12 (-).
Relay Disabled contact on terminals 19 and 20 opens.
2. Connect suitable variable source current
to phase A, terminals 3 and 4,
to phase B, terminals 5 and 6,
to phase C, terminals 7 and 8,
to neutral, terminals 9 and 10,
3. Connect suitable AC voltage
to phase A-B, terminals 41 and 42,
to phase B-C, terminals 43 and 44,
to phase C-A, terminals 45 and 46,
Connect timer to Trip 1 contacts, terminals 1 and 2.
Pickup
4. Apply nominal voltage to the relays voltage inputs,
for example, 69 V
∠
30 to phase A-B,
69 V
∠
270 to phase B-C,
69 V
∠
150 to phase C-A.
Apply 2x pickup current to phase A and B in forward direction,
for example, 2.0 A
for example, 2.0 A
∠
30 to phase A and 2.0 A
∠
210 to phase B, or
2.0 A
∠
270 to phase B and 2.0 A
∠
90 to phase C, or
2.0 A
∠
150 to phase C and 2.0 A
∠
330 to phase A.
-relay should not go into pickup,
-reset test current to zero A,
D
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