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Transformer protection RET650
Product version: 1.1
3. Available functions
Main protection functions
IEC 61850/
ANSI Function description
Function
block name
Differential protection
T2WPDIF
87T
Transformer differential protection, two
winding
T3WPDIF
87T
Transformer differential protection, three
winding
REFPDIF
87N
Restricted earth fault protection, low
impedance
HZPDIF
87
1Ph High impedance differential
protection
8
1MRK 504 127-BEN -
Issued: February 2011
Transformer
1
1
2
3
2
2
ABB
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