TB MRI(K)3-C 03.02 E
73
Assignment of the AR functions*
LED
Function
Default settings
Actual setting
Parameter set change-over switch
Set 1
Set 2
Set 1
Set 2
Permitted for tripping before 1
st
AR
I>+tD1
For overcurrent stage
TIME
TIME
I>>+tD1
For short circuit stage
TIME
TIME
I
E
>+tD1
For earth overcurrent stage
TIME
TIME
I
E
>>+tD1
For earth short circuit stage
TIME
TIME
Permitted for the 1
st
AR
SHOT+I>+tD1
AR is permitted, if the I> stage is the tripping cause
NO
NO
SHOT+I>>+tD1
AR is permitted, if the I>> stage is the tripping cause
YES
YES
SHOT+I
E
>+tD1
AR is permitted, if the I
E
> stage is the tripping cause
NO
NO
SHOT+I
E
>>+tD1
AR is permitted, if the I
E
>> stage is the tripping cause
NO
NO
Tripping after 1
st
AR
I>+tD1
For overcurrent stage
TIME
TIME
I>>+tD1
For short circuit stage
TIME
TIME
I
E
>+tD1
For earth overcurrent stage
TIME
TIME
I
E
>>+tD1
For earth short circuit stage
TIME
TIME
Permitted for the 2
nd
AR
SHOT+I>+tD2
AR is permitted, if the I> stage is the tripping cause
NO
NO
SHOT+I>>+tD2
AR is permitted, if the I>> stage is the tripping cause
YES
YES
SHOT+I
E
>+tD2
AR is permitted, if the I
E
> stage is the tripping cause
NO
NO
SHOT+I
E
>>+tD1
AR is permitted, if the I
E
>> stage is the tripping cause
NO
NO
Tripping after 2
nd
AR
I>+tD2
For overcurrent stage
TIME
TIME
I>>+tD2
For short circuit stage
TIME
TIME
I
E
>+tD2
For earth overcurrent stage
TIME
TIME
I
E
>>+tD2
For earth short circuit stage
TIME
TIME
Permitted for the 3
rd
AR
SHOT+I>+tD2
AR is permitted, if the I> stage is the tripping cause
NO
NO
SHOT+I>>+tD2
AR is permitted, if the I>> stage is the tripping cause
YES
YES
SHOT+I
E
>+tD2
AR is permitted, if the I
E
> stage is the tripping cause
NO
NO
SHOT+I
E
>>+tD2
AR is permitted, if the I
E
>> stage is the tripping cause
NO
NO
Tripping after 3
rd
AR
I>+tD3
For overcurrent stage
TIME
TIME
I>>+tD3
For short circuit stage
TIME
TIME
I
E
>+tD3
For earth overcurrent stage
TIME
TIME
I
E
>>+tD3
For earth short circuit stage
TIME
TIME
Permitted for the 4
th
AR
SHOT+I>+tD3
AR is permitted, if the I> stage is the tripping cause
NO
NO
SHOT+I>>+tD3
AR is permitted, if the I>> stage is the tripping cause
YES
YES
SHOT+I
E
>+tD3
AR is permitted, if the I
E
> stage is the tripping cause
NO
NO
SHOT+I
E
>>+tD3
AR is permitted, if the I
E
>> stage is the tripping cause
NO
NO
Tripping after 4
th
AR
I>+tD4
For overcurrent stage
TIME
TIME
I>>+tD4
For short circuit stage
TIME
TIME
I
E
>+tD4
For earth overcurrent stage
TIME
TIME
I
E
>>+tD4
For earth short circuit stage
TIME
TIME
* only
MRIK3
– relay types
TIME=tripping with setting time; FAST=trip immediately; BLOC_tripping stage is blocked
