ABB Relion REL650 Series Product Manual page 107

Line distance protection REL650
Version 2.2
Table 161. ANSI Inverse time characteristics for Voltage restrained time overcurrent protection
Function
Operating characteristic:
æ ö
A
ç ÷
= + ×
t B k
( )
ç ÷
-
P
I 1
è ø
EQUATION1249-SMALL V3 EN-US
I = I /I
measured set
ANSI Extremely Inverse
ANSI Very inverse
ANSI Normal Inverse
ANSI Moderately Inverse
Long Time Extremely Inverse
Long Time Very Inverse
Long Time Inverse
Table 162. IEC Inverse time characteristics for Voltage restrained time overcurrent protection
Function
Operating characteristic:
æ ö
A
ç ÷
= ×
t k
( )
ç ÷
P
è - ø
I 1
EQUATION1251-SMALL V1 EN-US
I = I /I
measured set
IEC Normal Inverse
IEC Very inverse
IEC Inverse
IEC Extremely inverse
IEC Short time inverse
IEC Long time inverse
Hitachi Power Grids
GUID-2AE8C92E-5DA8-487F-927D-8E553EE29240 v3
Range or value
0.05 ≤ k ≤ 999.00
A=28.2, B=0.1217, P=2.0
A=19.61, B=0.491, P=2.0
A=0.0086, B=0.0185, P=0.02, tr=0.46
A=0.0515, B=0.1140, P=0.02
A=64.07, B=0.250, P=2.0
A=28.55, B=0.712, P=2.0
A=0.086, B=0.185, P=0.02
Range or value
0.05 ≤ k ≤ 999.00
A=0.14, P=0.02
A=13.5, P=1.0
A=0.14, P=0.02
A=80.0, P=2.0
A=0.05, P=0.04
A=120, P=1.0
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1MRK 506 384-BEN H
Accuracy
Accuracy
107