Copyright ® Henan pinggao Electric Co.,Ltd 豫ICP备05010380号
Service
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
If you need to consult other business, you can call the hotline directly.
General department: +86-375-3804029
Securities department: +86-375-3804064
Sales: +86-375-3803888
Customer service center: 400-6700-312
PRODUCT
PRODUCTS
Brief Description
Circuit breaker is used for making and breaking normal current, fault current and switching lines to realize the control and protection of power system.
Each pole of LW10B-252 circuit breaker has one break without parallel capacitor and each pole of LW10B-363 circuit breaker has double breaks with parallel capacitors. For both of products, each pole is equipped with a hydraulic operation mechanism, which can make single-pole operation and/or three-pole-gang operation.
Complete and rigorous type tests have been performed on the series products, the type test certificates were issued by Italy CESI Certification Center in 1998.
Main Features
1 Excellent breaking capacity with advanced construction.
2 Valve system of hydraulic mechanism can effectively prevent oil leak, and each pole is equipped with density relay to monitor SF6 leakage.
3 Good insulation performance.
4 The components and spare parts are highly interchangeable with other products of PINGGAO, experienced manufacturing technology, easy to maintain on site.
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Specifications
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Unit
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Value
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Rated voltage
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kV
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252
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363
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Rated current
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A
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3150/4000
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Rated frequency
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Hz
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50/60
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Rated short-time withstand current (r.m.s)
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kA
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50
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63
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Rated peak withstand current
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kA
|
125
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160
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1min power frequency withstand voltage (r.m.s)
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To earth/Between phases
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kV
|
460
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510
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Across isolating distance
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kV
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460(+145)
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510(+210)
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Lightning impulse withstand voltage (peak)
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To earth/Between phases
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kV
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1050
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1175
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Across isolating distance
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kV
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1050(+200)
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1175(+295)
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额定操作冲击耐受电压(峰值) kV
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断口间
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kV
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850(+295)
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极对地
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kV
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950
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Rated SF6 gas pressure（20℃）
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MPa
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0.4/0.6
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Rated SF6 annual leakage
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%
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≤0.5
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