ABB RELION 650 SERIES, Руководство по эксплуатации продукта

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Table 53. IEC Inverse time characteristics
Function Range or value Accuracy
Operating characteristic:
( )
= ×
-
æ ö
ç ÷
ç ÷
è ø
1
P
A
t td
I
EQUATION1653 V1 EN-US
I = I
measured
/I
set
td = (0.05-999) in steps of 0.01 -
IEC Normal Inverse A=0.14, P=0.02 IEC 60255-151, class 5 +
40 ms
IEC Very inverse A=13.5, P=1.0
IEC Inverse A=0.14, P=0.02
IEC Extremely inverse A=80.0, P=2.0
IEC Short time inverse A=0.05, P=0.04
IEC Long time inverse A=120, P=1.0
Table 54. RI and RD type inverse time characteristics
Function Range or value Accuracy
RI type inverse characteristic
= ×
-
1
0.236
0.339
t td
I
EQUATION1656 V1 EN-US
I = I
measured
/I
set
td = (0.05-999) in steps of 0.01 IEC 60255-151, class 5 +
40 ms
RD type logarithmic inverse
characteristic
=
- ×
æ ö
ç ÷
è ø
5.8 1.35
t
I
In
td
EQUATION1657 V1 EN-US
I = I
measured
/I
set
td = (0.05-999) in steps of 0.01 IEC 60255-151, class 5 +
40 ms
Busbar protection REB650 1MRK 505 265-BUS B
Version 1.1 ANSI
40 ABB Power Grids
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