Table 730:
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
I = I
measured
/I
set
td = (0.05-999) in steps of 0.01
IEC 60255-151, 5% + 40
ms
RD type logarithmic inverse characteristic
=
-
×
æ
ö
ç
÷
è
ø
5.8
1.35
t
I
In
td
EQUATION1657 V1 EN
I = I
measured
/I
set
td = (0.05-999) in steps of 0.01
Section 22
1MRK505222-UUS C
Inverse time characteristics
1190
Technical reference manual
Summary of Contents for Relion 670 series
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