57
Load Break Switch Control
ERT-200S
7.1.5.
Line Open Setting
Open Line is detected by Under Voltage characteristics at unbalanced condition.
When the voltage on one or two phases drops below the ‘Volt OFF Level’ setting, the ‘Delay Time’
starts running. If the voltage on those phases stays below ‘Volt OFF Level’ setting until the ‘Delay
Time’ timer expires, the Loss of Phase will be detected.
If the voltage on detected phase rises to the ‘Volt ON Level’ setting, the Loss of Phase is released
immediately.
Range
Step
Def.
Unit
Min
Max
On Voltage
50
90
1
80
%
Off Voltage
35
86
1
50
%
Detection Time
0.1
300.
0.1
0.4
sec
Function Use
No
Yes
No
Line Open / Line on Voltage Set
Range
50 ~ 90 %
Default
80 %
Step
1 %
Set the live Line On Voltage level.
Line Open / Line off Voltage Set
Range
35 ~ 75 %
Default
50 %
Step
1%
Set line OffVoltage level.
Line Open / Delay Time Set
Range
0.1 ~ 300.0 sec
Default
0.4
Step
0.1 sec
Set Delay time of Line Open detect element.
Summary of Contents for ERT-200S
Page 1: ...Feeder Remote terminal Unit ERT 200S Manual www powersys kr...
Page 13: ...13 Load Break Switch Control ERT 200S 2 5 Function BlockDiagram...
Page 38: ...38 Load Break Switch Control ERT 200S 5 3 3 Menu structure tree Figure Menu Tree Structure...
Page 42: ...42 Load Break Switch Control ERT 200S...
Page 96: ...Appendix 1 Drawings 1 Enclosure Control Cabinet...
