Fault on the bottom bar: The 32 GOOSE messages are sent by all the

Fault on the bottom bar: The 32 GOOSE messages are sent by all the

devices seeing the fault.

•

The first received GOOSE is processed by the incomer device in 7 ms (min.

3.5 ms and max. 10 ms

•

The last one is processed by the incomer device typically in 224 ms but it

does not matter.

•

The recommendation is to use one GOOSE control block (CGB) (MAC

address) per blocking scheme.

IEC 61850 configuration instructions

8. Appendix: Blocking example

30

P3APS19001EN

Figure 26 - Blocking scheme with two bus bars

Medium-voltage performance requirements

•

GOOSE used to trip are class P2 (10 ms) (not usually used)

•

GOOSE used for fast automation are class P3 (20 ms) (such as blocking

scheme or breaker failure)

•

GOOSE used for automation are class P4 (100 ms)

Conclusion

P3 is suitable to perform:

•

Either:

◦

Class P3 fast automation scheme up to three different functions/

applications per subscriber each subscribing up to 64 publishers (without

quality bits).

◦

Class P4 automation scheme up to five different functions/applications per

subscriber each subscribing up to 64 publishers (without quality bits).

•

Or:

◦

Class P3 fast automation scheme up to three different functions/

applications per subscriber each subscribing up to 32 publishers (with

quality bits).

◦

Class P4 automation scheme up to five different functions/applications per

subscriber each subscribing up to 32 publishers (with quality bits).

8. Appendix: Blocking example

IEC 61850 configuration instructions

P3APS19001EN

31

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P3APS19001EN — 03/2019