ABB RELION 620 Series Technical Manual page 202

Section 4
Protection functions
Table 145: 50N/G-1/2 Group settings
Parameter Values (Range)
Pickup value 0.10...40.00
Pickup value mult 0.8...10.0
Time multiplier 0.05...15.00
Trip delay time 40...200000
Operating curve type 1=ANSI Ext Inv
3=ANSI Norm Inv
5=ANSI DT
9=IEC Norm Inv
10=IEC Very Inv
12=IEC Ext Inv
15=IEC DT
17=Programmable
Type of reset curve 1=Immediate
2=Def time reset
3=Inverse reset
Table 146: 50N/G-1/2 Non group settings
Parameter Values (Range)
Operation 1=enable
5=disable
Minimum trip time 20...60000
Reset delay time 0...60000
Measurement mode 1=RMS
2=DFT
3=Peak-to-Peak
Curve parameter A 0.0086...120.0000
Curve parameter B 0.0000...0.7120
Curve parameter C 0.02...2.00
Curve parameter D 0.46...30.00
Curve parameter E 0.0...1.0
IG/I0 signal Sel 1=Measured IG
2=Calculated I0
196
Unit Step Default
xIn 0.01 1
0.1 1.0
0.01 1.00
ms 10 1000
5=ANSI DT
1=Immediate
Unit Step Default
5=disable
ms 1 20
ms 1 20
2=DFT
28.2000
0.1217
2.00
29.10
1.0
1=Measured IG
1MAC504801-IB E
Description
Pickup value
Multiplier for scaling the pickup value
Time multiplier in IEC/ANSI IDMT curves
Trip delay time
Selection of time delay curve type
Selection of reset curve type
Description
Operation Disable / Enable
Minimum trip time for IDMT curves
Reset delay time
Selects used measurement mode
Parameter A for customer programmable
curve
Parameter B for customer programmable
curve
Parameter C for customer programmable
curve
Parameter D for customer programmable
curve
Parameter E for customer programmable
curve
Measured IG or calculated I0
Technical Manual
620 series ANSI