Gas Insulated Load Break Switch
Our fully enclosed, pole-mounted SF6 load break switches are used extensively throughout distribution networks and are designed to be maintenance-free with long service life.
- 12kV, 24kV, 36kV
Description
Features
Options
Ordering Information
Typical Configurations
Downloads
Description
12, 24, 36kV voltage rating: The switch can be supplied in 12, 24 & 36kV voltage ratings and up to 630A breaking current.
Safer, more reliable switching: Fully enclosed, SF6 insulation and interruption provides greater reliability.
Local or remote operation: Manually operated LBS can be fitted with a remotely controlled actuator.
Insulators and leads: Choose from porcelain or polymer bushings, with factory fitted cable leads or bare terminal palms.
Features
- Stainless steel enclosure
- Easy handling and light weight
- Open/close indicator
- Maintenance free
- Low gas lockout feature
- High dielectric strength
- Superior endurance to adverse environments Mechanical latch holding in close position
- Pole mounting provisions
- Pressure relief vent.
Options
- IEC 61850 compatible automatic controller
- Manual mid-pole operation
- Fully dressed with cables and surge arrestors.
Ordering Information
- 12kV, 24kV or 36kV
- 400amp or 630amp
- With or without leads
- Manual or Automatic (SCADA)
- Manual with mid pole actuator
- Mid pole or pole top mounting arrangement
- Surge arrester mounting above or below bushings.
Typical Configurations
Manual operation type
- Easy operation
- Open/Close indication
- Safety interlock
- Light weight
- Maintenance free
Remote operation type
- Local/Remote switch for local field control or remote from DAS master station and substation RTU
- Dry contacts provide the local/remote switch status to the DAS master station and substation RTU
- Auxiliary output contacts are mechanically linked with the switch main contact
- Metal connector (waterproof plug-in type) for connecting control cable
- Line switch control (open/close) and status indication
Downloads
Technical Specifications
-
-
12kV
12kV
36kV
36kV
-
-
Rated Voltage
kV
12
12
24
24
36
36
Rated Frequency
Hz
50/60
50/60
50/60
50/60
50/60
50/60
Rated Normal Current
A
400
630
400
630
400
630
Rated Symmetrical Interrupting Current
A
400
630
400
630
400
630
Rated Short-Time Withstand Current, 1 sec
kA (rms)
16
16
16
16
16
16
Rated Short-Circuit Making Current
kA (peak)
41.6
41.6
41.6
41.6
41.6
41.6
Rated Power Frequency Withstand Voltage, 1 min
n kA (rms)
70
70
70
70
70, 80
70, 80
Rated Impulse Withstand Voltage
kA (peak)
165
165
165
165
170, 195
170, 195
Number of Operations: Mechanical, Electrical (rated normal current)
times
5000
5000
5000
5000
5000
5000
Minimum Creepage Distance of Bushing or Supporting Insulator, from live part to ground
mm
min 600
min 600
min 600
min 600
min 900
min 900
