Siemens ISGS SG8158-00 - Manual (Page 69)

Appendix D: Acceptance Test Procedures
Siemens Energy & Automation, Inc. 63
D Acceptance Test Procedures
When performing the acceptance tests, follow the sequence listed here; first test protective function 51, then 50, etc.)
Note: The following procedures should be performed using accurately calibrated test equipment connected to a
source free of harmonics. Refer to Figure D.1 for connection diagram.
ISGS Acceptance Test Phase Time Overcurrent (51) Function
Set the ISGS as follows:
Parameter Set A
7103
5000:5 Current Transformer (CT) 1101
Curve SEA 5, Very Inverse 1702
1 A Nominal Pickup 1703
Time Dial per Chart 1705
Trip Matrixed to Trip 1 Contact 6401
Disable Other Conflicting Functions 1501, 1551, 1601, 1651, 1801, 1901, 2001, 2301
Phase
A B C Connections
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 timer to Trip 1 contacts, terminals 1 and 2.
Pickup
4. Increase current until relay picks up (this should occur at 1.06 x pickup.
Pickup LED illuminates.
Wisdom software records pickup in event log.
Return current to zero and reset timer.
Timing
5. Apply appropriate value of current for the test. The results match Table D.1.
Pickup LED illuminates.
Display shows PICKUP 51 P1 (2, 3).
Wisdom software records pickup in event log.
E
D
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