宁波国创电力科技发展有限公司

服务热线:13515888985
服务项目:避雷器、高压开关、电阻片
产品分类
新闻中心News
联系方式Contact us
  • 联系人:马
  • 电话:0574-86306457
  • 邮件:1564976173@qq.com
  • 手机:13515888985
  • 传真:0574-86302057
  • 地址:浙江省宁波市镇海经济技术开发区清水浦金河路1号
您当前的位置:首页 » 产品展示Products » GW4隔离开关

GW4隔离开关

产品: 浏览次数:210GW4隔离开关 
品牌: 国创
单价: 面议
最小起订量:
供货总量:
发货期限: 自买家付款之日起 3 天内发货
有效期至: 长期有效
详细信息
     该产品为双柱水平中央开断式结构,用于三相交流50Hz高压电路在无负载情况下进行切换电器及电气隔离之用的输变电设备。
     该结构形式的隔离开关由于接线端子部分采用了挠性软导体无接点状态,使通电性能稳定可靠。接触部分采用了安全固定装置,隔离开关在合闸状态时,不会因外力(强风力、地震、电动力等)使触头、触指脱离接触。
     底座部分采用了防锈轴承结构,使其能长时间灵活地动作,现场安装操作杆的安装尺寸误差,可在安装架和基础制作时在±20mm以内进行调整,隔离开关利用操动机构进行分、合时操作杆旋转90°或180°,其分、合极限位置构成3-5°死点结构,隔离开关即使在外力(强风力、地震、电动力等)的作用下,也不能分、合闸。

  接地开关附装在隔离开关本体上。接地开关的接地杆能垂直翻转90°,所以能长时间灵活、轻快地进行运作。接地开关合闸时,即使外力(强风力、地震、电动力等)的作用也不会发生接触脱离。 接地开关和隔离开关带有可靠性极高的机械联锁装置。接地开关可以和隔离开关用同样的操动机构进行操作
     表.GW4隔离开关的技术参数见下表:
      最高电压kV
      稳定电流A
      动稳定电流(峰值)kA
      热稳定电流(峰值)kA
      1min工频耐压(有效值)kV
      雷电冲击耐压(有效值)kV
      分、合闸时间s
      接线端额定静拉力N
      开断小电流A
      对地
      断口
      对地
      断口

      该产品结构特点如下: 外形及安装尺寸图
      接线端子:
      通过有弹性的薄铜片组合而成的软连接导电带、导电板和接线端子,形成可靠的导电路径。当隔离开关处于开闸开关处于开闸状态时,导电带呈“U”形,反之呈旋涡形。在固定接线端子的导电管上下两端采用了两盘轴承,使得接线端子在受到母线张力等引起的机构负荷作用时,也能够转动灵活地完成分合闸动作,减少对瓷绝缘子的扭矩力。为了使导电座内部检修方便,可不拆下接线端子及其相联的母线,而将其结构设计为揭盖式或裸盖式,并能有效解决出线端折断、发热而烧断软连接现象。
      接触部分:
      主导电回路借鉴国外的先进技术,双铜板式结构,散热性能优于铜管式,强度增加,温升大大降低,主触头具有自清洁能力。触头采用可调外压式弹簧结构,可长期保持触头压力稳定,主导电回路转动连接部分采用软连接机构并转动轴套具有自润滑功能。
      轴承座部分:
      高强度的大底基座具备了良好的抗震能力,轴承部分的所有金属件表面处理都采用热镀锌工艺。轴承座转动轴上下端采用两盘不锈钢轴承,轴承润滑采用优质二硫化钼锂基润滑脂,使其能够长期保持动作灵敏可靠,且轴承具有免加油润滑功能,可保证底座免维护10-15年。
      转动部分:
      转动部分全部采用积木化设计,传动连杆采用装配式结构,能适应用户各种方式的联动布置和操动机构安装接口,转动铰链采用不锈钢,能保证长期灵活转动。
      零部件:
      大型零部件采用热镀锌工艺,螺丝、弹簧和小型金属零件均采用不锈钢。


      The product is double-column horizontal center breaking structure, for three-phase AC 50Hz high voltage switching electrical circuits and electrical transmission and distribution equipment used in isolation under no-load conditions.
      The structure of the terminal part due to the isolation switch with a soft flexible conductor non-contact state, the performance is stable and reliable electricity. Contact parts made of safety fixtures, isolation switch in the closing state, not because of external forces (strong wind, earthquake, electric power, etc.) to make contact, finger disengagement.
      The base part is a bearing structure rust, it can be a long flexible operation, field installation error of the operating lever mounting dimensions, when the mounting bracket and can be adjusted based on the production within ± 20mm, the disconnector operating mechanism for the use of , timely or 90 ° rotation operation lever 180 °, the points constituting the aggregate limit position 3-5 ° dead structure, even in the external isolation switch (high winds, earthquakes, electrical power, etc.) the effect can not be divided, closing.
      Ground isolation switch attached to the switch body. Ground rod grounding switch can be flipped vertically 90 °, it can be a long and flexible, briskly to operate. When the grounding switch is closed, even if the external forces (strong wind, earthquake, electric power, etc.) the role of the contact does not occur out. Grounding switch and isolation switch with high reliability mechanical interlock devices. Grounding switch disconnectors can be operated with the same actuator
      Table technical parameters GW4 isolation switch in the table below:
      The maximum voltage kV
      A steady current
      Dynamic current (peak) kA
      Thermal current (peak) kA
      1min power frequency withstand voltage (rms) kV
      Lightning impulse withstand voltage (rms) kV
      Points, closing time s
      N terminal static tensile
      A small current breaking
      Ground
      Fracture
      Ground
      Fracture

      The product structure features are as follows: Overall and installation dimensions
      Terminals:
      Through a flexible combination of soft thin copper conductive connection with the conductive plates and terminals, forming a reliable conductive path. When the gate is in the switch disconnector is in the state gate, the conductive tape was "U" shaped, whereas the vortex was formed. Fixing upper and lower ends of the conductive tube terminals using two ball bearing, so that the terminal load is applied to the body when subjected to tension caused by the bus, it is possible to complete the rotational flexibility of the closing operation, to reduce the torque force of porcelain insulators. In order to facilitate internal inspection conductive seat, do not remove the terminal and its associated bus, and its structure is designed to Uncovery or bare lid, and can effectively solve the outlet end of the break, fever and soft connection blown phenomenon.
     Contact parts:
     Leading electrical circuit learn from foreign advanced technology, dual copper structure, thermal performance is better than brass type, increase strength, temperature greatly reduced, the main contact with self-cleaning ability. External pressure contacts with adjustable spring structure can maintain long-term stable contact pressure, leading electrical circuit connecting part with soft rotating coupling mechanism and turn self-lubricating bushings.
     Bearing parts:
     Outsole base with a good high-intensity seismic capacity, all metal parts are bearing surface treatment using hot dip galvanizing process. The lower end of the rotating shaft bearing using two stainless steel bearings, lubricated with high-quality molybdenum disulfide lithium grease so that it can maintain a sensitive and reliable long-term and bearings lubricated with free features that ensure maintenance base 10-15 years .
     Rotating part:
     Rotating part of the building blocks used in all design, transmission link the assembled structure, can adapt and actuator linkage arrangement of the various ways to install the user interface, the rotation hinges made ​​of stainless steel, to ensure long-term flexible rotation.
     Parts:
     Large parts are hot-dip galvanizing process, screws, springs and small metal parts are made of stainless steel.