江苏施耐德交流接触器总经销 长沙汇业电气工程有限公司

一、电压速断保护
线路发生短路故障时，母线电压急剧下降，在电压下降到电压保护整定值时，低电压继电器动作，跳开断路器，瞬时切除故障。这就是电压速断保护。
二、电流速断保护
电流速断保护分为无时限电流速断和带时限电流速断，当线路出现故障时，无时限速断保护能瞬时动作，但它只能线路的一部分，带时限电流速断保护能保护全线路另外带时限速断保护比下一级线路无时限保护大了一个时限差，因此下一段线路首端发生短路时，保护不会误动。
三、变压器差动速断保护
差动保护是变压器的主保护，是按循环电流原理装设的。
主要用来保护双绕组或三绕组变压器绕组内部及其引出线上发生的各种相间短路故障，同时也可以用来保护变压器单相匝间短路故障。
差动速断保护 ，为了防止在较高短路电流水平时,由于电流互感器饱和时产生的高次谐波量增加,产生较大的制动力矩而使差动保护拒动;当短路电流达到4-10倍额定电流时,速断元件快速出口
差动保护的性能非常好，可以瞬时切除全线范围的故障，一般只用于元件保护，如变压器和发电机等。其原理是比较元件两侧的电流大小和方向。
电流速断保护反映相间短路故障，在10~35KV配电线路和小容量变压器上应用广泛。其动作电流按短路电流整定，数值大，只有线路始端故障时的短路电流才会大于其动作电流，即速断保护才会动作，所以其保护范围只限于线路**部分。
速断的功能:
MGK31C重合器控制器是专为中压35kV及以下ZW□永磁开关设计的户外型控制器。能方便的配合柱上永磁开关实现分、合闸管理...线路保护功能 ¨ 过流Ⅰ段:速断保护功能 ¨ 过流Ⅱ段:速断保护 ¨ 过流Ⅲ段:定时限过流保护 ¨ 自动重合
过电流保护功能：
过继电器电流保护器具有过载,堵转,过压,欠压,断相,电流不平衡的保护功能,过电流保护器能对任何类型三相电动机起快速,可靠的保护.过电流保护器具有结构简单,使用方便,价格低廉,而且无功耗,寿命长,体积小的特点.
LC1D80F7C
LC1D80M7C
LC1D80Q7C
LC1D95B7C
LC1D95E7C
LC1D95F7C
LC1D95M7C
LC1D95Q7C
LC1D115006M5C
LC1D11500F5C
LC1D11500F7C
LC1D11500M5C
LC1D11500M7C
LC1D11500Q5C
LC1D15000M7C
LC1D15000Q7C
LC1D17000F7C
LC1D17000M7C
LC1D17000Q7C
LC1D205F5C
LC1D205F7C
LC1D205M5C
LC1D205M7C
LC1D205Q5C
LC1D245M5C
LC1D245M7C
LC1D245Q5C
LC1D300M7C
LC1D300Q7C
LC1D410F7C
LC1D410M7C
LC1D410Q7C
LC1D475F7C
LC1D475M7C
LC1D475Q7C
LC1D620M7C
LC1D620Q7C

*2种：用电设备本身绝缘损坏而漏电（即设备中的N线与PE线短接）。
故障现象：插座回路用电时，插座回路漏电开关跳闸。
故障原因：经分析线路接线正确无误，负荷计算与漏电开关匹配，故判断为用电设备本身绝缘损坏而漏电（即设备中的N线与PE线短接）。
解决：更换或用电设备，保证用电设备具有良好的绝缘。
*3种：线路绝缘强度或线路短路引起漏电断路器故障跳闸。
故障现象：不用电时，插座回路漏电开关跳闸。
故障原因：经分析，1、线路绝缘强度，泄漏电流**过了漏电开关允许泄漏电流值。2、因线路短路所致。
解决：1、烘干线路，绝缘强度。2、检查线路若是短路所致，排除短路故障。
*4种：有人触电，插座回路漏电断路器跳闸。
故障现象：插座回路漏电开关突然跳闸。
故障原因：有人触电。
解决：宣传教育用户用电，避免触电事故发生，若发现有人触电，应及时抢救伤者。
*5种：员工接线不正确，照明回路中将N线接到PE线上了
故障现象：插座回路能正常用电，照明回路用电时，中的总漏电开关跳闸。
故障原因：经分析，线路接线不正确，将照明回路中的N线误接到PE线上了。
解决：进行改线，将照明回路中的PE线改接到N线上。
*6种：员工接线不正确，插座盒中的N线与PE线接错了
故障现象：照明回路能正常用电，插座回路用电时，ALY中的插座漏电开关跳闸，有时AL1中的总漏电开关也跳闸。
Reference
订货号
LC1D09B7C
LC1D09C7C
LC1D09CC7C
LC1D09D7C
LC1D09E7C
LC1D09F7C
LC1D09FE7C
LC1D09L7C
LC1D09M7C
LC1D09N7C
LC1D09P7C
LC1D09Q7C
LC1D09U7C
LC1D09V7C
LC1D12B7C
LC1D12C7C
LC1D12CC7C
LC1D12D7C
LC1D12E7C
LC1D12F7C
LC1D12FE7C
LC1D12L7C
LC1D12M7C
LC1D12N7C
LC1D12P7C
LC1D12Q7C
LC1D12U7C
LC1D12V7C
LC1D18B7C
LC1D18C7C
LC1D18CC7C
LC1D18D7C
LC1D18E7C
LC1D18F7C
LC1D18FE7C
LC1D18L7C
LC1D18M7C
LC1D18N7C
LC1D18P7C
LC1D18Q7C
LC1D18U7C
LC1D18V7C
LC1D25B7C
LC1D25C7C
LC1D25CC7C
LC1D25D7C
LC1D25E7C
LC1D25F7C
LC1D25FE7C
LC1D25L7C
LC1D25M7C
LC1D32B7C
LC1D32C7C
LC1D38D7C
LC1D38E7C
LC1D38F7C
LC1D38FE7C
LC1D38L7C
LC1D38M7C
LC1D38N7C
LC1D38P7C
LC1D38Q7C
LC1D38U7C
LC1D38V7C
LC1D40B7C
LC1D40E7C
LC1D40F7C
LC1D40M7C
LC1D40Q7C
LC1D50B7C
LC1D50E7C
LC1D50F7C
LC1D50M7C
LC1D50Q7C
LC1D65B7C
LC1D65E7C
LC1D65F7C
LC1D65M7C
LC1D65Q7C
LC1D80B7C
LC1D80E7C
LC1D80F7C
LC1D80M7C
LC1D80Q7C
LC1D95B7C
LC1D95E7C
LC1D95F7C
LC1D95M7C
LC1D95Q7C
LC1D115006M5C
LC1D11500F5C
LC1D11500F7C
LC1D11500M5C
LC1D11500M7C
LC1D11500Q5C
LC1D15000M7C
LC1D15000Q7C
LC1D17000F7C
LC1D17000M7C
LC1D17000Q7C
LC1D205F5C
LC1D205F7C
LC1D205M5C
LC1D205M7C
LC1D205Q5C
LC1D245M5C
LC1D245M7C
LC1D245Q5C
LC1D300M7C
LC1D300Q7C
LC1D410F7C
LC1D410M7C
LC1D410Q7C
LC1D475F7C
LC1D475M7C
LC1D475Q7C
LC1D620M7C
LC1D620Q7C

接触器
接触器分为交流接触器（电压AC）和直流接触器（电压DC），它应用于电力、配电与用电场合。接触器广义上指工业电中利用线圈流过电生磁场，使触头闭合，以达到控制负载的电器。作用：在电工学上，因为可快速切断交流与直流主回路和可频繁地接通与大电流控制（达800A）电路的装置，所以经常运用于电动机做为控制对象﹐也可用作控制工厂设备﹑电热器﹑工作母机和各样电力机组等电力负载，接触器不仅能接通和切断电路，而且还具有低电压释放保护作用。接触器控制容量大，适用于频繁操作和远距离控制,是自动控制系统中的重要元件之一。在工业电气中其用处相当广泛。
Reference
订货号
LC1D09B7C
LC1D09C7C
LC1D09CC7C
LC1D09D7C
LC1D09E7C
LC1D09F7C
LC1D09FE7C
LC1D09L7C
LC1D09M7C
LC1D09N7C
LC1D09P7C
LC1D09Q7C
LC1D09U7C
LC1D09V7C
LC1D12B7C
LC1D12C7C
LC1D12CC7C
LC1D12D7C
LC1D12E7C
LC1D12F7C
LC1D12FE7C
LC1D12L7C
LC1D12M7C
LC1D12N7C
LC1D12P7C
LC1D12Q7C
LC1D12U7C
LC1D12V7C
LC1D18B7C
LC1D18C7C
LC1D18CC7C
LC1D18D7C
LC1D18E7C
LC1D18F7C
LC1D18FE7C
LC1D18L7C
LC1D18M7C
LC1D18N7C
LC1D18P7C
LC1D18Q7C
LC1D18U7C
LC1D18V7C
LC1D25B7C
LC1D25C7C
LC1D25CC7C
LC1D25D7C
LC1D25E7C
LC1D25F7CC
LC1D38L7C
LC1D38M7C
LC1D38N7C
LC1D38P7C
LC1D38Q7C
LC1D38U7C
LC1D38V7C
LC1D40B7C
LC1D40E7C
LC1D40F7C
LC1D40M7C
LC1D40Q7C
LC1D50B7C
LC1D50E7C
LC1D50F7C
LC1D50M7C
LC1D50Q7C
LC1D65B7C
LC1D65E7C
LC1D65F7C
LC1D65M7C
LC1D65Q7C
LC1D80B7C
LC1D80E7C
LC1D80F7C
LC1D80M7C
LC1D80Q7C
LC1D95B7C
LC1D95E7C
LC1D95F7C
LC1D95M7C
LC1D95Q7C
LC1D115006M5C
LC1D11500F5C
LC1D11500F7C
LC1D11500M5C
LC1D11500M7C
LC1D11500Q5C
LC1D15000M7C
LC1D15000Q7C
LC1D17000F7C
LC1D17000M7C
LC1D17000Q7C
LC1D205F5C
LC1D205F7C
LC1D205M5C
LC1D205M7C
LC1D205Q5C
LC1D245M5C
LC1D245M7C
LC1D245Q5C
LC1D300M7C
LC1D300Q7C
LC1D410F7C
LC1D410M7C
LC1D410Q7C
LC1D475F7C
LC1D475M7C
LC1D475Q7C
LC1D620M7C
LC1D620Q7C

特点
??永磁交流器的革新技术特点是用永磁式驱动机构取代了的电磁铁驱动机构,即利用磁铁与微电子模块组成的控制装置,置换了产品中的电磁装置,运行中无工作电流,仅由微弱电流(0.8-1.5mA)。微电子模块中包含六个基本的部分：1.电源整流； 2.控制电源电压实时检测； 3.释放储能(有的也有吸合储能,但不是必须有)； 4.储能电容电压检测； 5.抗门槛电压检测；6.释放逻辑电路。这6部分是永磁操作机构电子控制部分的必要组成,如果缺少任何一个部分,操作机构在特定的情况下就没常工作。这6个部分,也就决定了操作机构可以具备抗晃电功能。
??①．节能：
??器的合闸保持是靠合闸线圈通电产生电磁力来克服分闸弹簧来实现的，一旦电流变小使产生的电磁力不足以克服弹簧的反作，器就不能保持合闸状态，所以，交流器的合闸保持是必须靠线圈不断的通电来维持的，这个电流从数十到数千毫安。而永磁交流器合闸保持依靠的是永磁力，而不需要线圈通过电生电磁力来进行合闸保持，只有电子模块的0.8mA—1.5mA的工作电流，因而，能大限度地节约电能，节电率高达99.8%以上。
LC1D80F7C
LC1D80M7C
LC1D80Q7C
LC1D95B7C
LC1D95E7C
LC1D95F7C
LC1D95M7C
LC1D95Q7C
LC1D115006M5C
LC1D11500F5C
LC1D11500F7C
LC1D11500M5C
LC1D11500M7C
LC1D11500Q5C
LC1D15000M7C
LC1D15000Q7C
LC1D17000F7C
LC1D17000M7C
LC1D17000Q7C
LC1D205F5C
LC1D205F7C
LC1D205M5C
LC1D205M7C
LC1D205Q5C
LC1D245M5C
LC1D245M7C
LC1D245Q5C
LC1D300M7C
LC1D300Q7C
LC1D410F7C
LC1D410M7C
LC1D410Q7C
LC1D475F7C
LC1D475M7C
LC1D475Q7C
LC1D620M7C
LC1D620Q7C
http://longxun.cn.b2b168.com