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Copyright ® Henan pinggao Electric Co.,Ltd         豫ICP备05010380号

Company name: henan pinggao electric co. LTD

Address: Henan province of pingdingshan city

south ring road 22

Mail editor: 467000
E -  mail : pinggao@pinggao.esgcc.com.cn

400-6700-312

PRODUCT

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Products_detail

PRODUCTS

LW55-252/363/550/800 SF6 Dead Tank Circuit Breaker

Description

Brief Description 

LW55 Series of SF6 Dead Tank Circuit Breaker, including LW55-252, LW55-363, LW55-550 and LW55-800, are used for making and breaking normal current, fault current and switching lines to realize the control, measurement and protection of power system.

With the advantages of excellent breaking performance, reliable mechanical properties, advanced tightness technology, high design parameters, the whole structure of circuit breaker is compact, with stable and reliable performance and long endurance.  

 Main Features

1        The circuit breaker is of strong breaking capacity, long electrical endurance.

2        LW55 Series have excellent antiseismic and antipollution capacities, which make it suitable for those polluted places and higher elevation areas.

3        The oil pressure in hydraulic mechanism is automatic controlled and it can’t be affected by the temperature.

4        There are almost no external pipe for this new type of hydraulic operating mechanism, the possibility of oil leakage is reduced.


Technical Parameters
Specifications
Unit
Value
Rated voltage
kV
252
363
550
800
Rated current
A
4000
5000
Rated frequency
Hz
50/60
Rated short-time withstand current (r.m.s)
kA
50
Rated peak withstand current
kA
125
1min power frequency withstand voltage (r.m.s)
To earth/Between phases
kV
460
510
740
960
Across isolating distance
kV
460 +(154)
510 +(210)
740 +(315)
960 +(460)
Lightning impulse withstand voltage (peak)
To earth/Between phases
kV
1050
1175
1675
2100
Across isolating distance
kV
1050 +(200)
1175 +(295)
1675 +(450)
2100 +(650)
Rated operating impulse withstand voltage (peak)
To earth/Between phases
kV
 
950
1300
1550
Across isolating distance
kV
 
 850 +(295)
1175 +(450)
1300 +(650)
Rated SF6 gas pressure(20℃)
MPa
0.6
Rated SF6 annual leakage
%
≤0.5

 

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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