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ABB rec670 Applications Manual

ABB rec670
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transformers in the feeder circuit (for example, in the transformer bushings). It is often
required to separate the protection zones that the feeder is protected with one scheme
while the T-zone is protected with a separate dif
ferential protection scheme. The 1Ph
high impedance differential HZPDIF (87) function in the IED allows this to be done
efficiently, see Figure
52.
1MRK 511 401-UUS A Section 7
Differential protection
Bay control REC670 2.2 ANSI 139
Application manual

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ABB rec670 Specifications

General IconGeneral
BrandABB
Modelrec670
CategoryControl Unit
LanguageEnglish

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