它们皆由底坐、支柱绝缘子、导电部分和机关部分合成。引用闸刀式结构分从事 闸达到堵截和闭合电路。每相闸刀由两片导电刀片合成,刀片两侧外装有压缩弹簧,调解弹簧的高度可以得到开关闸刀所需求的接触压力,开关分合闸时用绝缘操作机关可以开展合闸运动,闸刀有自锁安装。二、使用条件:
●海拔高度不超越1000米。
●四周氧气气温:止境+40℃,下限普通地区-30℃,高寒地区-40℃。
●风压不超越700Pa.(可观于风速34m/s)。
●地震强度不超越8度。
●无频烦急剧震惊楞场。
●常规型安装楞场应无严重影响隔离开关绝缘和导电能力的气态、蒸气、化工性沉积、盐类雾、粉尘及其他 爆震性、腐蚀性的物体。 防污型合用于重肮脏地区,但不应有引超火险及爆震物
用途、特点GW5系列隔离开关是由35KV、60KV和110KV三个电压等级组成的系列产品。供高压线路在无载情况下进行换接,以及对被检修的高压母线、断路器等电气设备与带电的高压线路进行电气隔离之用,在主闸刀处于正常分闸位置时,可提供一个符合安全要求的可见的绝缘距离,也可以用于分、合很小的电容电流或电感电流。GW5系列隔离开关按照结构特点及使用场合分为如下几种类型。GW5-35、60、110型户外隔离开关是由三个独立的单相隔离开关组成的三相高压电器,又是派生其它特殊结构的基本单元,其外形图见1(a),图1(b),以下简称为普通型隔离开关。GW5-35、60、110w(Dw)型户外高压隔离开关,是在普通型(接地型)隔离开关的基础上将普通型棒式支柱绝缘子改成防污型棒式支柱绝缘子而成。适用于污秽地区。以下简称防污型隔离开关。GW5-35、60、110K型户外隔离开关是在普通隔离开关上增设分闸弹簧、缓冲装置等零件而成。通常与JW1型接地开关联合使用,用以代替终端变压器高压侧的断路器。以下称为快分型隔离开关。GW5-35、60、110Z型户外隔离开关,是在普通隔离开关在空间不同方位上进行安装布置而成。通常与JW1型接地开关联合使用,用以代替变压器高压侧的断路器。以下称为快分型隔离开关。特殊安装型又可以分为倒装、侧装、侧装、倾斜25°三种安装方式。其中倒装型隔离天关上所用棒式支柱绝缘子系特殊制造的倒伞式支柱绝缘子。Gw5系列户外隔离开关规格全、种类多、性能可靠、结构简单、安装检修容易,适用范围广,通用性系列性强。当采用特种安装形式,时可使变电所布线更为灵活,并可大量减少占地面积,节省金属构架,若配用硬母线,则布线更为整洁、清晰。
是否提供加工定制 | 是 | 操作方式 | 开启式 |
触头结构 | 常开按钮 | 防护方式 | 防水式 |
工作电压 | 36(V) | 工作电流 | 3(A) |
额定发热电流 | 3(A) | 接触电阻 | 50M(Ω) |
绝缘电阻 | 100(MΩ) | 机械寿命 | 500000(次) |
头部保护等级 | IP67 | 产品认证 | ROHS |
高强度抗破坏按钮开关 |
◆安装孔尺寸: Φ12mm |
◆开关额定值: 2A/36VDC |
◆开关组合: 1NO |
◆操作类型: 自复式 |
◆头部形状: 圆形 |
◆外壳材料: 不锈钢/黄铜 |
产品型号 | PB12M-FR-B | | 电气寿命 | 500000万次以上 | |
头部形状 | 圆形 | 面板厚度 | 1~ 10mm | ||
尾部配置 | 接线插片(2 × 0.5mm) | 螺母扭矩 | 5~ 14Nm | ||
开关型式 | X(双断点慢动触头) | 操作压力 | 约2N | ||
开关规格 | 2A/36VDC | 操作行程 | 约1.5mm | ||
接触电阻 | ≤50mΩ | 防护等级 | IP67,IK08 | ||
绝缘电阻 | ≥1000MΩ | 材 料 | 触点 | 银合金 | |
绝缘强度 | 2000VAC | 按键 | 不锈钢/黄铜(镀镍或镀金发黑) |
外壳:密闭带环氧树脂涂层的铝外壳NEMA4,4X,IP66
微动开关特性:单个设定点
1个SPDT,固定静区,2个SPDT,固定静区,1个SPDT,可调静区压力调整范围:真空至3000PSI温度调整范围:-40F至400C差压调整范围:30IN.H2O至400PSI
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BGV2系列防爆电动机保护开关防爆电动机保护开关由铝合金隔爆型外壳 Exd 和增安型接线箱 Exe 两大部分组成,箱体外壳喷涂纯环氧树脂粉末。可满足化工、石油和海上工业的要求。 隔爆型外壳内装有常规的新型电动机保护开关,增安型箱装有接线端子和电缆密封套,在交流50Hz、380V 线路中对三相电机具有过载保护和短路保护功能。
BGV2系列防爆电动机保护开关 ● 外露紧固件为不锈钢。
BGV2系列防爆电动机保护开关 ● 表面喷涂纯环氧树脂。
BGV2系列防爆电动机保护开关 ● 面板设有操作机构。
BGV2系列防爆电动机保护开关● 铝制的电缆密封套可进行钢管、电缆布线均可。