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ABB RELION 670 Series Technical Manual page 947

Generator protection

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1MRK 502 066-UUS B

TRINP_3P

TRINP_A

PS_A

TRINP_B

PS_B

TRINP_C

PS_C

1PTRGF

1PTRZ

ANSI10000056 V3 EN-US

Figure 484: Phase segregated front logic

Technical manual

AND

AND

AND

OR

OR

- loop

OR

AND

AND

OR

OR

OR

OR

-loop

AND

AND

tWaitForPHS

OR

Section 15

TR_A

TR_B

TR_C

ANSI10000056-3-en.vsd

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941

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