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ABB RELION 670 Series Technical Manual page 220

Generator protection

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Section 7

Impedance protection

TimerPP=Enable

TimerPG=Enable

NDIR_PP

FWD_PP

REV_PP

NDIR_G

FWD_G

REV_G

ANSI08000441 V3 EN-US

Figure 96: TRIP and PICKUP signal logic

214

AND

0-tPP

OR

0-tPG

AND

OR

OR

OR

AND

0

OR

AND

0

ANSI08000441-3-en.vsd

1MRK 502 066-UUS B

TRIP

RI

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