1. Brief introduction
PLBS Pole mounted SF6 load break switches are designed to meet growing requirements for
Reliability.
Switches filled with SF6 gas as the insulating and arc quenching medium with puffing
principle.
It can be used in 12kv,24kv,36kv overhead line.
It has excellent load breaking and fault making capacity.
It has three kinds of operating mechanisms: manual, motor, intelligent
The basic mechanism is operator independent quick close and quick open spring toggle
mechanism. The motor operating mechanism is developed to meet the feeder automation in addition to the manual switch.
2.Standards
It complies with IEC60265, IEC60694, IEC62271, GB 3804 standard.
3.Brief specifications
Name | Unit | Data |
Rated voltage | Kv | 12/24/36 |
Rated frequency | Hz | 50/60 |
Rated load current | A | 400/630 |
Rated short time withstand current | KA/s | 20/4 |
Rated cable charging breaking current | A | 25 |
Peak withstand current | KA | 50 |
*Other ratings are available upon request
4. Service conditions
Surrounding temperature: upper limit +50°C, lower limit -40°C
Relative humidity: 100%
Altitude: no more than 3000m
Wind pressure no more than 700pa(equal to wind speed 34m/s).
Earthquake intensity: 8 degrees
Installation places: no fire, explosive risk, chemical corrosion or frequent severe vibration.
5. Switch structure
gas filling valve
It is equipped to fill SF6 gas to the switch housing when necessary.
High gas pressure relief and alarm device
In order to prevent the gas pressure rises sharply, the high gas pressure anti-explosion relief device is equipped. When the pressure reaches 0.4MPa to 0.6MPa ( 4-6 kg/cm2G ), pressure relief film releases the inner pressure. High gas pressure anti-explosion relief device is equipped in the opposite position of the manual operation handle.
6. packing
7.Shipping
Each product is tested before delivery.
We can help arrange the following shipping:
sea: econimic, but slow
air: fast
express: fast, suitable for samples