1MRS750886-MUM
27
REU 513
User’s Guide
ABB Substation Automation
Products and Systems
Table 6: SGF2
Switch
Function
Default
setting
SGF2/1
Single- or three-phase operation.
• 0 = three-phase operation
• 1 = single-phase operation
In single-phase use, the measured voltage has to be connected
to inputs X1.1/1 and X1.1/3 for proper function, and the start
voltage of stage U<< is to be set 0.1 x U
n
below the start voltage
of stage U<.
0
SGF2/2
Selection between conventional undervoltage measurement and
positive-phase-sequence protection for stage U<<.
• 0 = conventional undervoltage measurement in use
• 1 = positive-phase-sequence U1s in use
0
SGF2/3
Operation condition for stage U<< when the conventional
undervoltage measurement is selected.
• 0 = Normal use for detecting loss of voltage when all voltages
fall below the set value.
• 1 = More sensitive operation: the stage starts when even one of
the phases falls momentarily below the set value. In this case,
to avoid unnecessary start situations, the start voltage of stage
U<< is to be set to 0.6 x U
n
or below.
0
SGF2/4
Internal blocking of stage U< when the measured voltage falls
below 0.2 x U
n
.
• 0 = internal blocking of U<
• 1 = no internal blocking of U<
0
SGF2/5
Internal blocking of stage U<< when the measured voltage falls
below 0.2 x U
n
.
• 0 = internal blocking of U<<
• 1 = no internal blocking of U<<
0
SGF2/6
Inhibition of the operation of stage U>>.
• 0 = The operation of the stage U>> is not inhibited.
• 1 = The operation of the stage U>> is inhibited.
0
SGF2/7
Inhibition of the operation of stage U<<.
• 0 = The operation of the stage U<< is not inhibited.
• 1 = The operation of the stage U<< is inhibited.
0
SGF2/8
Blocking of operation of stage U< by starting of stage U<<.
• 0 = The operation of the stage U< is not blocked.
• 1 = The operation of the stage U< is blocked.
0
Σ
SGF2
0
