CN86100367B - 隔离开关 - Google Patents

隔离开关 Download PDF

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Publication number
CN86100367B
CN86100367B CN86100367A CN86100367A CN86100367B CN 86100367 B CN86100367 B CN 86100367B CN 86100367 A CN86100367 A CN 86100367A CN 86100367 A CN86100367 A CN 86100367A CN 86100367 B CN86100367 B CN 86100367B
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CN
China
Prior art keywords
isolating switch
copper bar
bar bus
supporting insulator
movable contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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CN86100367A
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CN86100367A (zh
Inventor
西川灿
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority claimed from JP9670185A external-priority patent/JPS61256523A/ja
Priority claimed from JP11885885A external-priority patent/JPS61279029A/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN86100367A publication Critical patent/CN86100367A/zh
Publication of CN86100367B publication Critical patent/CN86100367B/zh
Expired legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/023Base and stationary contacts mounted thereon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact

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  • Gas-Insulated Switchgears (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

本发明提供一种改进了结构的隔离开关,该隔离开关主要由直接设置于铜条母线上的固定触头和与上述固定触头可离、合的可动触头构成。由于该隔离开关省去了母线和固定触头间的连接导线及固定触头用的支持绝缘子等零件.所以能使隔离开关的重量减轻、成本下降、配置空间缩小,同时操作性能也相应提高。

Description

隔离开关
本发明涉及隔离开关,尤其涉及由可与设置在铜条母线上的固定触头离、合的可动触头构成的隔离开关结构的改进。
为了能根据需要把电气设备与电源切断,必须在母线与电气设备之间设置隔离开关。现有隔离开关的结构及设置状况的一个例子如第5图所示。铜条母线(4)通过支持绝缘子(3)被支撑在支柱(2)的上端,上述支柱(2)竖着固定于基础(1)之上。铜条母线(4)通过支持配件(3a)安装在支持绝缘子(3)上,并架设得与支柱(2)、支持绝缘子(3)大致成直角。支柱(2)上装有隔离开关(5),隔离开关(5)配备有一端固定着固定触头(6)的支持绝缘子(7)和一端固定着支持端子(8)的支持绝缘子(9),支持绝缘子(7)和(9)的另一端以一定的间隔固定在座架(10)上。支持端子(8)上铰接着在一端附近有钩环(11a)的可动触头(11)的另一端,可动触头(11)的长度及支持绝缘子(7)与(9)间的间隔是根据转动可动触头(11),其一端能与固定触头离、合的要求选定和构成的。隔离开关(5)通过座架(10)固定在支柱(2)上,其中,支持绝缘子(7)与支持绝缘子(3)大致成直角。挠性导体(12)的一端通过连接端子(12a)与铜条母线(4)相连,另一端通过连接端子(12b)与固定触头(6)相连,这样,隔离开关(5)就通过挠性导体(12)与铜条母线相连接。另外,隔离开关又通过一端经连接端子(13a)与支持端子(8)相连,另一端与电气设备(未图示)相连的挠性导体(13)与电气设备相连接。
把电气设备与电源切断时,用绝缘操作杆的钩子钩住隔离开关(5)的钩环(11a)的孔穴,把可动触头(11)的前端从固定触头(6)处拉开,通过这样的操作,首先,固定触头(6)与可动触头(11)间的锁定解除,然后,可动触头(11)离开固定触头(6)。因此,原来起到把由铜条母线(4)、挠性导体(12)及固定触头(6)构成的电源侧电路和由支持端子(8)及挠性导体(13)组成的负荷侧电路跨接起来的作用的可动触头(11)就变成负荷侧电路的构成零件,电气设备被切离电源。
因为现有隔离开关的结构如上所述,所以,例如移动式变电站或小型变电站那样,由于运输时受到尺寸大小的限制而使基础与铜条母线间的间隔很窄时,就存在隔离开关的操作较困难、从安全方面考虑也不合适的问题。另外,还存在相反的问题:即操作隔离开关必需有一定的距离,为了尽量减小与相邻机器间的间隔以减小整套设备的占地面积,隔离开关必须尽量设置在较高的位置。
本发明是鉴于上述问题作出的,目的在于获得操作方便、占地面积小、又能减轻设备重量的隔离开关。
本发明的隔离开关的特征是,具有直接设置于经第1支持绝缘子由支柱所支持的铜条母线之上的固定触头,和一端经第2支持绝缘子由上述支柱支持,另一端与上述固定触头可离、合地构成的可动触头。
根据本发明,由于固定触头直接设置于铜条母线上,所以可省去铜条母线与固定触头间的挠性导体及支持固定触头用的支持绝缘子。因此,可把可动触头用的支持绝缘子移到以往安装固定触头用的支持绝缘子的附近,这样,不改变铜条母线的高度,就能增大从基础到可动触头间的距离,因而能在使操作变得方便的同时减少支持绝缘子等零部件的数量,能在缩小占地面积的同时减轻整套设备的重量。
以下根据图示的实施例,详细说明本发明。
如图1.所示,按本发明一实施例的隔离开关(15)也架设在一端固定于基础(1)并立式设置的支柱(2)上,支柱(2)的上端固定着第1支持绝缘子(3),在这第1支持绝缘子(3)上通过支持配件(3a)安装着铜条母线(4),铜条母线(4)经第1支持绝缘子(3)由支柱(2)支持,并架设得与支持绝缘子(3)大致成直角。隔离开关(15)由固定触头(16)与可动触头(21)构成,固定触头(16)在距第1支持绝缘子(3)一定距离处,经安装配件(16a)设置于铜条母线(4)上,可动触头(21)的一端与支持端子(18)转动连接,支持端子(18)固定在与第1支持绝缘子(3)大致成直角的直接安装于支柱(2)上的第2支持绝缘子(19)的一端,可动触头(21)转动,有钩环(21a)的一端就能与固定触头(16)离、合。支持端子(18)与第5图的装置同样是通过连接端子(13a)、挠性导体(13)与电气设备(未图示)连接的。
根据本发明的隔离开关的动作与现有的隔离开关的相同,不需要什么特殊的操作。但是,当基础(1)和铜条母线(4)之间的距离与现有的相同时,作为隔离开关的可动触头用支持绝缘子的第2支持绝缘子(19)能靠近铜条母线(4),并根据其靠近的程度多少,操作也相应方便多少,并且与相邻机器间的配置间隔也能相应缩小。
第2图显示本发明的另一实施例。图中的各个符号和名称及各自的功能与第一图相同,但隔离开关(15)的可动触头(21)设置得可与铜条母线(4)直接离合,不必专门设置固定触头(16),结构进一步简化。这种场合,铜条母线也可以是铜管母线。
如第3图、第4图分别图示的那样,在第1图、第2图中的可动触头(21)由易熔筒(21′)构成、成为带熔断器的隔离开关的情况下,本发明也能发挥完全相同的效果。即在第3图中,(16′)是在距支持绝缘子(3)一定距离处通过安装配件(16a)安装在铜条母线(4)上的、作为电源侧固定触头的第1止动机构,(18′)是固定在与支柱(2)直角固定的支持绝缘子(19)的一端上的、负荷侧的第2止动机构,(15′)是连接在第一止动机构(16′)和第2止动结构(18′)之间的、由易熔筒(21′)构成的带熔断器的隔离开关。(21′a)是设在可与第1止动机构(16′)离、合的易熔筒(21′)的一端的钩环,(21′b)是设在易熔筒(21′)另一端的、能相对第2止动机构(18′)自由转动的铰链。
另外,在第4图中,符号(14)相当于第3图中的第1止动机构,是装备有可与铜条母线(4)离、合的触点(14a)、钩环(14b)及夹铁(14c)、并通过夹铁(14c)装在易熔筒(21′)的一端的触头。
如上所述,按照本发明,因为隔离开关的固定触头是直接设置于铜条母线上的,因此不需要铜条母线与固定触头间的挠性导体及固定触头用支持绝缘子,所以具有如下效果即减轻重量、降低设备成本且提高利用狭小底基面积时的操作性能。
以下简单说明附图。第1图是图示按本发明的隔离开关的一实施例的侧面图,第2图是图示按本发明的隔离开关的另一实施例的侧面图,第3图、第4图是图示本发明其他实施例中带熔断器的隔离开关的侧面图。第5图是图示现有隔离开关的一例的侧面图。
在图中,(2)是支柱,(3)是第1支持绝缘子,(4)是铜条母线,(15)是隔离开关,(16)是固定触头,(19)是第2支持绝缘子,(21)、(21′)是可动触头。

Claims (4)

1、一种隔离开关,备有可动触头,其一端通过支持绝缘子由支柱进行支持,其特征在于上述可动触头的另一端直接连接到铜条母线上或者通过固定触头连接到铜条母线的端部以外的任意点上。
2、按权利要求1的隔离开关,其特征是,可动触头由通过过电流时会熔断的易熔筒构成。
3、按权利要求1或2的隔离开关,其特征是,固定触头由铜条母线本身构成。
4、按权利要求3的隔离开关,其特征是铜条母线是铜管母线。
CN86100367A 1985-05-09 1986-01-24 隔离开关 Expired CN86100367B (zh)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP60-96701 1985-05-09
JP9670185A JPS61256523A (ja) 1985-05-09 1985-05-09 断路器
JP96701/85 1985-05-09
JP60-118858 1985-06-03
JP118858/85 1985-06-03
JP11885885A JPS61279029A (ja) 1985-06-03 1985-06-03 可溶器

Publications (2)

Publication Number Publication Date
CN86100367A CN86100367A (zh) 1986-11-05
CN86100367B true CN86100367B (zh) 1988-10-05

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CN (1) CN86100367B (zh)
CH (1) CH671853A5 (zh)
DE (1) DE3615707A1 (zh)

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Publication number Publication date
CN86100367A (zh) 1986-11-05
DE3615707C2 (zh) 1989-09-07
US4688013A (en) 1987-08-18
CH671853A5 (zh) 1989-09-29
DE3615707A1 (de) 1986-11-13

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