r 施耐德CVS的工作原理 r
rr 断路器一般由触头系统、灭弧系统、操作机构、脱扣器、外壳等构成。 r
rr 当短路时,大电流(一般10至12倍)产生的磁场克服反力弹簧, 脱扣器拉动操作机构动作,开关瞬时跳闸。当过载时,电流变大,发热量加剧,双金属片变形到一定程度推动机构动作(电流越大,动作时间越短)。 r
rr 现在有电子型的,使用互感器采集各相电流大小,与设定值比较,当电流异常时微处理器发出信号,使电子脱扣器带动操作机构动作。 r
rr 断路器的作用是切断和接通负荷电路,以及切断故障电路,防止事故扩大,保证安全运行。而高压断路器要开断1500V,电流为1500-2000A的电弧,这些电弧可拉长至2m仍然继续燃烧不熄灭。故灭弧是高压断路器必须解决的问题。 r
rr 吹弧熄弧的原理主要是冷却电弧减弱热游离,另一方面通过吹弧拉长电弧加强带电粒子的复合和扩散,同时把弧隙中的带电粒子吹散,迅速恢复介质的绝缘强度。 r
rr 低压断路器也称为自动空气开关,可用来接通和分断负载电路,也可用来控制不频繁起动的电动机。它功能相当于闸刀开关、过电流继电器、失压继电器、热继电器及漏电保护器等电器部分或全部的功能总和,是低压配电网中一种重要的保护电器。 r
rr 低压断路器具有多种保护功能(过载、短路、欠电压保护等)、动作值可调、 分断能力高、操作方便、安全等优点,所以目前被广泛应用。结构和工作原理低压断路器由操作机构、触点、保护装置(各种脱扣器)、灭弧系统等组成。 r
rr 低压断路器的主触点是靠手动操作或电动合闸的。主触点闭合后,自由脱扣机构将主触点锁在合闸位置上。过电流脱扣器的线圈和热脱扣器的热元件与主电路串联,欠电压脱扣器的线圈和电源并联。当电路发生短路或严重过载时,过电流脱扣器的衔铁吸合,使自由脱扣机构动作,主触点断开主电路。当电路过载时,热脱扣器的热元件发热使双金属片上弯曲,推动自由脱扣机构动作。当电路欠电压时,欠电压脱扣器的衔铁释放。也使自由脱扣机构动作。分励脱扣器则作为远距离控制用,在正常工作时,其线圈是断电的,在需要距离控制时,按下起动按钮,使线圈通电,衔铁带动自由脱扣机构动作,使主触点断开。 r
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r 产品型号: r
rr CVS100E/3P/15Ar
rr CVS100E/3P/20Ar
rr CVS100E/3P/25Ar
rr CVS100E/3P/30Ar
rr CVS100E/3P/40Ar
rr CVS100E/3P/50Ar
rr CVS100E/3P/60Ar
rr CVS100E/3P/75Ar
rr CVS100E/3P/80Ar
rr CVS100E/3P/100Ar
rr CVS100E/4P/15Ar
rr CVS100E/4P/20Ar
rr CVS100E/4P/25Ar
rr CVS100E/4P/30Ar
rr CVS100E/4P/40Ar
rr CVS100E/4P/50Ar
rr CVS100E/4P/60Ar
rr CVS100E/4P/75Ar
rr CVS100E/4P/80Ar
rr CVS100E/4P/100Ar
rr CVS100B/3P/16Ar
rr CVS100B/3P/25Ar
rr CVS100B/3P/32Ar
rr CVS100B/3P/40Ar
rr CVS100B/3P/50Ar
rr CVS100B/3P/63Ar
rr CVS100B/3P/80Ar
rr CVS100B/3P/100Ar
rr CVS100B/4P/16Ar
rr CVS100B/4P/25Ar
rr CVS100B/4P/32Ar
rr CVS100B/4P/40Ar
rr CVS100B/4P/50Ar
rr CVS100B/4P/63Ar
rr CVS100B/4P/80Ar
rr CVS100B/4P/100Ar
rr CVS100F/3P/16Ar
rr CVS100F/3P/25Ar
rr CVS100F/3P/32Ar
rr CVS100F/3P/40Ar
rr CVS100F/3P/50Ar
rr CVS100F/3P/63Ar
rr CVS100F/3P/80Ar
rr CVS100F/3P/100Ar
rr CVS100F/4P/16Ar
rr CVS100F/4P/25Ar
rr CVS100F/4P/32Ar
rr CVS100F/4P/40Ar
rr CVS100F/4P/50Ar
rr CVS100F/4P/63Ar
rr CVS100F/4P/80Ar
rr CVS100F/4P/100Ar
rr CVS100N/3P/16Ar
rr CVS100N/3P/25Ar
rr CVS100N/3P/32Ar
rr CVS100N/3P/40Ar
rr CVS100N/3P/50Ar
rr CVS100N/3P/63Ar
rr CVS100N/3P/80Ar
rr CVS100N/3P/100Ar
rr CVS100N/4P/16Ar
rr CVS100N/4P/25Ar
rr CVS100N/4P/32Ar
rr CVS100N/4P/40Ar
rr CVS100N/4P/50Ar
rr CVS100N/4P/63Ar
rr CVS100N/4P/80Ar
rr CVS100N/4P/100Ar
rr CVS100H/3P/16Ar
rr CVS100H/3P/25Ar
rr CVS100H/3P/32Ar
rr CVS100H/3P/40Ar
rr CVS100H/3P/50Ar
rr CVS100H/3P/63Ar
rr CVS100H/3P/80Ar
rr CVS100H/3P/100Ar
rr CVS100H/4P/16Ar
rr CVS100H/4P/25Ar
rr CVS100H/4P/32Ar
rr CVS100H/4P/40Ar
rr CVS100H/4P/50Ar
rr CVS100H/4P/63Ar
rr CVS100H/4P/80Ar
rr CVS100H/4P/100Ar
rr CVS160B/3P/100Ar
rr CVS160B/3P/125Ar
rr CVS160B/3P/160Ar
rr CVS160B/4P/100Ar
rr CVS160B/4P/125Ar
rr CVS160B/4P/160Ar
rr CVS160F/3P/100Ar
rr CVS160F/3P/125Ar
rr CVS160F/3P/160Ar
rr CVS160F/4P/100Ar
rr CVS160F/4P/125Ar
rr CVS160F/4P/160Ar
rr CVS160N/3P/100Ar
rr CVS160N/3P/125Ar
rr CVS160N/3P/160Ar
rr CVS160N/4P/100Ar
rr CVS160N/4P/125Ar
rr CVS160N/4P/160Ar
rr CVS160H/3P/100Ar
rr CVS160H/3P/125Ar
rr CVS160H/3P/160Ar
rr CVS160H/4P/100Ar
rr CVS160H/4P/125Ar
rr CVS160H/4P/160Ar
rr CVS250B/3P/200Ar
rr CVS250B/3P/250Ar
rr CVS250B/4P/200Ar
rr CVS250B/4P/250Ar
rr CVS250F/3P/200Ar
rr CVS250F/3P/250Ar
rr CVS250F/4P/200Ar
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rr CVS250N/3P/200Ar
rr CVS250N/3P/250Ar
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rr CVS250N/4P/250Ar
rr CVS250H/3P/200Ar
rr CVS250H/3P/250Ar
rr CVS250H/4P/200Ar
rr CVS250H/4P/250Ar
rr CVS400F/3P/320Ar
rr CVS400F/3P/400Ar
rr CVS400F/4P/320Ar
rr CVS400F/4P/400Ar
rr CVS400N/3P/320Ar
rr CVS400N/3P/400Ar
rr CVS400N/4P/320Ar
rr CVS400N/4P/400Ar
rr CVS400H/3P/320Ar
rr CVS400H/3P/400Ar
rr CVS400H/4P/320Ar
rr CVS400H/4P/400Ar
rr CVS630F/3P/500Ar
rr CVS630F/3P/600Ar
rr CVS630F/4P/500Ar
rr CVS630F/4P/600Ar
rr CVS630N/3P/500Ar
rr CVS630N/3P/600Ar
rr CVS630N/4P/500Ar
rr CVS630N/4P/600Ar
rr CVS630H/3P/500Ar
rr CVS630H/3P/600Ar
rr CVS630H/4P/500Ar
rr CVS630H/4P/600Ar
rr CVS630F/3P/630Ar
rr CVS630F/4P/630Ar
rr CVS630N/3P/630Ar
rr CVS630N/4P/630Ar
rr CVS630H/3P/630Ar
rr CVS630H/4P/630A
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