Page 369 - Practical Power System and Protective Relays Commissioning

Chapter 22

Final Substation Primary and

Energization and Loading Tests

22.1 FINAL PRIMARY INJECTION TEST OF SUBSTATION
Consider the example of substation A as shown in Fig. 22.1.
This test can be done alone or along with a busbar protection primary
test.
By injecting the primary current with, for example, 150 Amps between
each of two bays:
1. Between F1 and F2 at point 1 and point 2 with Q 15 and C.B2 and Q 7 and
Q 9 and C.B3 and Q 16 are closed to test busbar B.B1-A. The test is
repeated with Q 15 and C.B2 and Q 8 and Q 10 and C.B3 and Q 16 are closed
to test B.B2-A.
2. Between F2 and F3 at point 2 and point 4 with C.B3 and Q 16 and Q 9 and
Q 1 and Q 5 and C.B1 are closed and the test is repeated with an injection
between point 2 and point 3 with C.B3 and Q 16 and Q 10 and Q 3 and Q 6
and C.B1 closed.

FIGURE 22.1 Substation A.

Practical Power System and Protective Relays Commissioning.
DOI: https://doi.org/10.1016/B978-0-12-816858-5.00022-8 365
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