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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

LW55-363 / Y5000-63 tank type SF6 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 pressure20℃)

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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