Setting procedure on the IED:
EnaAbs: This setting is used to select the comparison type between signed and absolute
values.
• Absolute: Comparison is performed on absolute values of input and reference values
• Signed: Comparison is performed on signed values of input and reference values.
RefSource: This setting is used to select the reference source between input and setting for
comparison.
• Input REF: The function will take reference value from input REF
• Set Value: The function will take reference value from setting SetValue
SetValue: This setting is used to set the reference value for comparison when setting
RefSource is selected as SetValue.
17.13.4 Setting example
For absolute comparison between inputs:
Set the EnaAbs = Absolute
Set the RefSource = Input REF
Similarly for Signed comparison between inputs
Set the EnaAbs = Signed
Set the RefSource =Input REF
For absolute comparison between input and setting
Set the EnaAbs = Absolute
Set the RefSource = Set Value
SetValue shall be set between -2000000000 to 2000000000
Similarly for signed comparison between input and setting
Set the EnaAbs = Signed
Set the RefSource = Set Value
1MRK 506 369-UUS - Section 17
Logic
Line distance protection REL670 2.2 ANSI 811
Application manual