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ABB RELION 670 SERIES REG670 - Page 682

ABB RELION 670 SERIES REG670
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EqualBandLow = 5.0 % of refer
ence value
Operation
The function will set the outputs for the following conditions,
INEQUAL will set when the INPUT is between the ranges of 95 to 105 kA.
INHIGH will set when the INPUT crosses above 105 kA.
INLOW will set when the INPUT crosses below 95 kA.
If the comparison should be done between two current magnitudes then those current
signals need to be connected to function inputs, INPUT and REF. Then the settings
should be adjusted as below,
EnaAbs = Absolute
RefSource = Input REF
EqualBandHigh = 5.0 % of reference value
EqualBandLow = 5.0 % of reference value.
Section 16 1MRK 502 071-UUS A
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676 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
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