I-Protection Module – Overcurrent Protection [ANSI 50, 51, 67]
Page 268
EN MRA4 04/09
t [s]
t-char
Trip
Reset
x * I>
(multiples of pickup)
t =
19.61
*t-char [s]
I>
-1
I
( )
2
+ 0.491
( )
t =
21.6
*t-char [s]
I>
-1
I
( )
2
Notice!
Various reset modes are available. Resetting via characteristic, delayed and
instantaneous.
ANSI VINV
Summary of Contents for SEG HighPROTEC MRA4
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Page 3: ...Order Code EN MRA4 04 09 Page 3...
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