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ABB Relion 670 Series Technical Reference Manual page 868

Line differential protection ansi

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Section 14

Logic

862

TRINP_3P

TRINP_A

PS_A

AND

TRINP_B

PS_B

AND

TRINP_C

PS_C

AND

OR

1PTRGF

1PTRZ

ANSI10000056 V3 EN

Figure 429:

Phase segregated front logic

OR

OR

- loop

-loop

OR

AND

AND

1MRK505222-UUS C

OR

OR

OR

AND

AND

tWaitForPHS

OR

ANSI10000056-3-en.vsd

Technical reference manual

TR_A

TR_B

TR_C

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