17
The following table gives the default values of the switches shown in Fig. 6.
Switch
Function
Default
value
SGB1/1
Forms from a control voltage applied to input 8 a blocking signal for
the tripping of the I> stage
0
SGB1/2
Forms from a control voltage applied to input 8 a blocking signal for
the tripping of the I>> stage
0
SGB1/3
Forms from a control voltage applied to input 8 a blocking signal for
the tripping of the I
0
> stage
0
SGB1/4
Forms from a control voltage applied to input 8 a blocking signal for
the tripping of the I
0
>> stage
0
SGB1/5
Enables switching from protection main settings to second settings by
applying an external control voltage to input 8
0
SGB1/6
Selects a latching function for the trip signal TS2 at overcurrent faults
0
SGB1/7
Selects a latching function for the trip signal TS2 at earth-faults
0
SGB1/8
Enables remote resetting of latched output relays and re-corded values
by an external control voltage on input 8
0
SGR1/1
Routes the start signal of stage I> to the SIGNAL 1 output
1
SGR1/2
Routes the trip signal of stage I> to the OPEN output
1
SGR1/3
Routes the start signal of stage I>> to the SIGNAL 1 output
0
SGR1/4
Routes the trip signal of stage I>> to the OPEN output
1
SGR1/5
Routes the start signal of stage I
0
> to the SIGNAL 1 output
0
SGR1/6
Routes the trip signal of stage I
0
> to the OPEN output
1
SGR1/7
Routes the start signal of stage I
0
>> to the SIGNAL 1 output
0
SGR1/8
Routes the trip signal of stage I
0
>> to the OPEN output
1
SGR2/1
Routes the trip signal of stage I> to the SIGNAL 3 output
1
SGR2/2
Routes the trip signal of stage I> to the SIGNAL 4 output
0
SGR2/3
Routes the trip signal of stage I>> to the SIGNAL 3 output
1
SGR2/4
Routes the trip signal of stage I>> to the SIGNAL 4 output
0
SGR2/5
Routes the trip signal of stage I
0
> to the SIGNAL 3 output
0
SGR2/6
Routes the trip signal of stage I
0
> to the SIGNAL 4 output
1
SGR2/7
Routes the trip signal of stage I
0
>> to the SIGNAL 3 output
0
SGR2/8
Routes the trip signal of stage I
0
>> to the SIGNAL 4 output
1
SGR3/1
Routes the start signal of stage I> to the SIGNAL 2 output
0
SGR3/2
Routes the trip signal of stage I> to the SIGNAL 2 output
0
SGR3/3
Routes the start signal of stage I>> to the SIGNAL 2 output
0
SGR3/4
Routes the trip signal of stage I>> to the SIGNAL 2 output
0
SGR3/5
Routes the start signal of stage I
0
> to the SIGNAL 2 output
0
SGR3/6
Routes the trip signal of stage I
0
> to the SIGNAL 2 output
0
SGR3/7
Routes the start signal of stage I
0
>> to the SIGNAL 2 output
0
SGR3/8
Routes the trip signal of stage I
0
>> to the SIGNAL 2 output
0
SGF1/1
Switches SGF1/1…3 are used for selecting the required operation
0
SGF1/2
characteristic of the low-set overcurrent stage I>, i.e. definite time or
0
SGF1/3
inverse time (IDMT) characteristic. Further selection at inverse time
0
characteristic: standard inverse, very inverse, extremely inverse or long-
time inverse.
SGF1/4
Selection of circuit breaker failure protection function
0
SGF1/5
Selection of automatic doubling of the set start value of stage I>> at
energization of the protected object
0
SGF1/6
Switches SGF1/6…8 are used for selecting the required ope-
0
SGF1/7
ration characteristic of the low-set earth-fault stage I
0
>, i.e. definite time
0
SGF1/8
or inverse time (IDMT) characteristic. Further selection at inverse time
0
characteristic: standard inverse, very inverse, extremely inverse or long-
time inverse.