CN201289817Y - 环网柜回路负荷开关 - Google Patents

环网柜回路负荷开关 Download PDF

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Publication number
CN201289817Y
CN201289817Y CNU2009200355588U CN200920035558U CN201289817Y CN 201289817 Y CN201289817 Y CN 201289817Y CN U2009200355588 U CNU2009200355588 U CN U2009200355588U CN 200920035558 U CN200920035558 U CN 200920035558U CN 201289817 Y CN201289817 Y CN 201289817Y
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arc
moving contact
control device
load switch
arc control
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邬刚
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Yangzhou Beichen Electric Equipment Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Yangzhou Power Supply Co of Jiangsu Electric Power Co
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Yangzhou Beichen Electric Equipment Co Ltd
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Abstract

环网柜回路负荷开关。涉及一种电气开关。设置在密封壳体内,包括灭弧室和设置在灭弧室内的动触头,动触头上部设有和动触头配合的静触头,灭弧室为套管结构,包括外套管和内套在外套管内的内套管,内套管可沿外套管上下运动,灭弧室内充有SF6绝缘气体,灭弧室内设有提高绝缘气体压力的导流槽,动触头和静触头采用Cu-W合金。本实用新型灭弧迅速,触头性能稳定。

Description

环网柜回路负荷开关
技术领域
本实用新型涉及一种电气开关,尤其涉及一种应用于环网柜回路负荷开关。
背景技术
为提高供电可靠性,使用户可以从两个方向获得电源,常将各个高压回路设置在一环网柜内进行供电,为了保证供电线路的安全和正常运行,防止事故的产生,需要在各回路上设置隔离装置,现在的隔离装置常采用刀闸,但在开关瞬间分闸时,常产生电弧,如果不及时灭弧,容易造成安全事故,但刀闸没有灭弧装置,仅能分断很小的回路电流,且刀闸体积大,占用空间大,而且容易损坏,不易维修,使用起来非常不经济。
实用新型内容
本实用新型针对上述缺陷,目的在于提供一种带灭弧装置、灭弧迅速、使用稳定性好的环网柜回路负荷开关。
本实用新型的技术方案是:本实用新型设置在密封壳体内,包括灭弧室和设置在灭弧室内的动触头,动触头上部设有和动触头配合的静触头,灭弧室为套管结构,包括外套管和内套在外套管内的内套管,内套管可沿外套管上下运动,灭弧室内充有SF6绝缘气体,灭弧室内设有提高绝缘气体压力的导流槽,动触头和静触头采用Cu-W合金。
本实用新型的主回路负荷开关带有灭弧效果,灭弧室内设高绝缘性能的SF6气体,通过压缩具有高绝缘性的SF6气体对动静触头瞬间分闸产生的电弧进行灭弧,为了使SF6气体长期能使用,把灭弧室设置在一密封壳体内,以提高绝缘、灭弧效果,同时也提高经济性;为了提高灭弧效果,提高绝缘气体的冲击压力,在灭弧室内设有导流槽,使绝缘气体从以截面相对较小的通道中以高压的方式冲击电弧,以达到迅速灭弧的效果;同时本实用新型为了提高动、静触头的使用寿命,采用具有良好综合性能的Cu-W合金,电弧对其影响较小,能在较长时间内保持触头的稳定。
附图说明
图1为本实用新型负荷开关合闸时的结构示意图
图中1为静触头、2为动触头、3为导流槽、4为外套管、5为内套管。
图2为负荷开关动静触头分闸瞬间的结构示意图
图3为开关分闸时的结构示意图
具体实施方式
本实用新型设置在密封壳体内,包括灭弧室和设置在灭弧室内的动触头2,动触头2上部设有和动触头2配合的静触头1,灭弧室为套管结构,包括外套管4和内套在外套管4内的内套管5,内套管5可沿外套管4上下运动,灭弧室内充有SF6绝缘气体,灭弧室内设有提高绝缘气体压力的导流槽3,动触头2和静触头1采用Cu-W合金。
下面结合附图对本实用新型作进一步的说明:
开关合闸时,动静触头接触,回路导通;动静触头分开的瞬间,两者之间产生电弧,灭弧室中的外套管4固定不动,动触头2随着内套管5向下运动,压缩处于灭弧室内的SF6绝缘气体,SF6绝缘气体通过导流槽3向上喷射,在动静触头之间产生绝缘面,使电弧消失,从而达到保护负荷开关的效果;同时本实用新型的动静触头优先选用梅花瓣式的结构,使电场更加均匀、对电流的特性好。

Claims (1)

1、环网柜回路负荷开关,设置在密封壳体内,包括灭弧室和设置在灭弧室内的动触头,其特征在于,动触头上部设有和动触头配合的静触头,灭弧室为套管结构,包括外套管和内套在外套管内的内套管,内套管可沿外套管上下运动,灭弧室内充有SF6绝缘气体,灭弧室内设有提高绝缘气体压力的导流槽,动触头和静触头采用Cu-W合金。
CNU2009200355588U 2009-03-13 2009-03-13 环网柜回路负荷开关 Expired - Lifetime CN201289817Y (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101930868A (zh) * 2010-04-26 2010-12-29 南京业基电气设备有限公司 Sf6气体负荷开关辅助灭弧装置
CN102354637A (zh) * 2011-07-28 2012-02-15 苏州鼎能电力设备有限公司 主动式断路器灭弧室

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101930868A (zh) * 2010-04-26 2010-12-29 南京业基电气设备有限公司 Sf6气体负荷开关辅助灭弧装置
CN102354637A (zh) * 2011-07-28 2012-02-15 苏州鼎能电力设备有限公司 主动式断路器灭弧室
CN102354637B (zh) * 2011-07-28 2014-05-14 苏州鼎能电力设备有限公司 主动式断路器灭弧室

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C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Wu Gang

Inventor before: Wu Gang

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20100122

Address after: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009

Co-patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company

Patentee after: Yangzhou Beichen Electric Equipment Co

Address before: No. 58, Hung Road, Yangzhou Development Zone, Jiangsu, China: 225009

Patentee before: Yangzhou Beichen Electric Equipment Co., Ltd.

ASS Succession or assignment of patent right

Owner name: YANGZHOU POWER SUPPLY CO., JIANGSU PROV ELECTRIC P

Free format text: FORMER OWNER: YANGZHOU POWER SUPPLY CO., JIANGSU PROV ELECTRIC POWER CO., LTD.

Effective date: 20121109

C41 Transfer of patent application or patent right or utility model
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Free format text: CORRECT: ADDRESS; FROM: 225009 YANGZHOU, JIANGSU PROVINCE TO: 225000 YANGZHOU, JIANGSU PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20121109

Address after: 225000 No. 58 Hung Road, Jiangsu, Yangzhou

Patentee after: Yangzhou Beichen Electric Equipment Co., Ltd.

Patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company

Patentee after: Jiangsu Electric Power Company

Patentee after: State Grid Corporation of China

Address before: 225009 No. 58 Hung Road, Yangzhou Development Zone, Jiangsu, China

Patentee before: Yangzhou Beichen Electric Equipment Co., Ltd.

Patentee before: Yangzhou Power Supply Company of Jiangsu Electric Power Company

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090812