ABB REJ 527 Technical Reference Manual page 26

REJ 527
26
Technical Reference Manual
Table 5: SGF2
Switch Function
SGF2/1 Automatic doubling of the start current of stage I
• 0 = The start value for the stage is not doubled at start-up.
• 1 = The start value for the stage is automatically doubled at
start-up.
SGF2/2 Inverse-time operation of stage I
stage I >>.
0
• 0 = The inverse-time operation is not inhibited.
• 1 = The inverse-time operation is inhibited.
SGF2/3 Inhibition of the operation of stage I
• 0 = The operation of the stage is not inhibited.
• 1 = The operation of the stage is inhibited.
SGF2/4 The operation mode of the start indicator of stage I
• 0 = The start indicator automatically resets once the fault
disappears.
• 1 = The start indication remains until manually reset.
SGF2/5 The operation mode of the start indicator of stage I
• 0 = The start indicator automatically resets once the fault
disappears.
• 1 = The start indication remains until manually reset.
SGF2/6 The operation mode of the start indicator of the stage U
• 0 = The start indicator automatically resets once the fault
disappears.
• 1 = The start indication remains until manually reset.
SGF2/7 Selection of the earth-fault current or zero-sequence voltage unit.
• 0 = The unit operates with two I
deblocking facility.
• 1 = The unit comprises a three-stage zero-sequence voltage
unit.
SGF2/8 Selection of U
protection.
• 0 = U deblocking is in use.
0
• 1 = U deblocking is not in use.
0
Σ SGF2
> inhibited by the starting of
0
>> or U
0
-stages and a voltage
0
deblocking for the directional earth-fault
0
ABB Substation Automation
Products and Systems
Default
setting
>>. 0
0
0
>>. 0
0
> or U >. 0
0 0
>> or U >>. 0
0 0
>. 0
0b
0
0
0
1MRS750616-MUM