Settings; Selector Switches (Modified 99-12) - ABB SPAU 130 C User Manual And Technical Description

Three-phase overvoltage and undervoltage relay
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Settings

Selector switches
(Modified 99-12)
6
The setting values are shown by the three
rightmost green digits of the display. The LED
indicator below the setting knob shows, when
U>/U
Start value of the U> stage as a multiple of the rated voltage of the relay energizing
n
input. Setting range 0.8...1.6 x U
t> [s]
Operate time of the U> stage, expressed in seconds, at definite time mode of k>
operation. The required setting range, 0.05...1.00 s, 0.5...10.0 s or 5...100 s, is selected
with switches SG1/4 and 5. At IDMT mode of operation the setting range of the
multiplier k> is 0.05...1.00.
U</U
Start value of the U< stage as a multiple of the rated voltage of the relay energizing
n
input. Setting range 0.4...1.2 x U
t< [s]
Operate time of the U< stage expressed in seconds. The setting range is selected with
switch SG1/8, alternatives 1...12 s and 10...120 s.
Further, the checksum of the programming
switchgroup SG1 is indicated on the display
when the indicator under the switchgroup is
glowing. In this way a check can be made to prove
When the module has been given single-phase
operation, only U
is measured. Additional
12
relay functions required in various applications
are selected by means of the selector switches of
Switch Function
SG1/1 Selection of three-phase or single-phase operation.
Three-phase operation when SG1/1 = 0.
Single-phase operation when SG1/1 = 1.
SG1/2 Start time selection for the overvoltage stage U>.
When SG1/2 = 0, the start time is 0.1 s.
When SG1/2 = 1, the start time is 30 s.
SG1/3 Selection of definite time or IDMT mode of operation for the U> stage. At definite
SG1/4 time mode of operation switches 4 and 5 are used for selecting the setting range of the
SG1/5 operate time t>. At IDMT mode of operation switch 4 is used for selecting the inverse
time curve, switch 5 has no function.
SG1/3 SG1/4 SG1/5
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
lit, the setting value currently being shown on
the display.
.
n
.
n
that the switches have been set and that they
work properly. An example of calculating the
checksum is given in the description "General
characteristics of C-type relay modules".
switchgroup SG1 located on the front panel of
the relay module. The numbering of the switches,
1...8, and the switch positions, 0 and 1, are
marked on the front panel.
Mode of
operation
0
Definite time
1
Definite time
0
Definite time
1
Definite time
0
Inverse time
1
Inverse time
0
Inverse time
1
Inverse time
Operate time t> or
characteristic curve
0.05...1.00 s
0.5...10.0 s
0.5...10.0 s
5...100 s
Curve A
Curve A
Curve B
Curve B

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