ABB RELION RET670 - Page 671

then exact replica of the existing relay will be achieved. The following table
summarizes all required settings for the multi-purpose function:
Setting Group1
Operation On
CurrentInput MaxPh
IBase 1000
VoltageInput MaxPh
UBase 20.50
OPerHarmRestr Off
I_2ndI_fund 20.0
BlkLevel2nd 5000
EnRestrainCurr Off
RestrCurrInput PosSeq
RestrCurrCoeff 0.00
RCADir -75
ROADir 75
LowVolt_VM 0.5
OC1
Setting Group1
Operation_OC1 On
StartCurr_OC1 30.0
CurrMult_OC1 2.0
CurveType_OC1 Programmable
tDef_OC1 0.00
k_OC1 1.00
tMin1 30
tMin_OC1 1.40
ResCrvType_OC1 Instantaneous
tResetDef_OC1 0.00
P_OC1 1.000
A_OC1 118.55
B_OC1 0.640
C_OC1 0.000
1MRK 504 163-UUS A Section 13
System protection and control
Transformer protection RET670 2.2 ANSI 665
Application manual