河南施耐德交流接触器 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.
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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。
故障原因：经分析，线路接线不正确，将插座盒中的N线与PE线接错了。
解决：进行改线，将插座盒中的N线与PE线对调。
*7种：员工接线不正确，在AL1箱中N线与PE线用混了
故障现象：插座回路或照明回路用电时，AL1中的总漏电开关都跳闸。
故障原因：经分析，线路接线不正确，将AL1箱中N线与PE线用混了。
解决：在AL1箱的总漏电开关负荷端，将N线与PE线对调
Reference
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原装LC1D施耐德交流接触器LC1D300M7C
施耐德交流接触器
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 LC1-D交流接触器结构特征：
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LC1-F施耐德交流接触器
LC1F115 F系列接触器
LC1F150 F系列接触器
LC1F185 F系列接触器
LC1F225 F系列接触器
LC1F265 F系列接触器
LC1F330 F系列接触器
LC1F400 F系列接触器
LC1F500 F系列接触器
LC1F630 F系列接触器
LC1F780M7 F系列接触
LC1F800 F系列接触器

施耐德接触器型号含义型号说明
施耐德接触器有很多型号，用户在选择的时候可能会搞不懂这些型号代表的意义是什么，今天科旭小编收集了施耐德接触器型号含义的说明供大家参考。
交流接触器LC1D65M7C代表65A/220V的国产D系列交流接触器，工作频率为50Hz/60Hz。其中每个数字字母的意义为：LC：交流线圈，1：单个接触器，D系列，65线圈电流65A，M：代表电压220V，7：50Hz/60Hz通用，C国产。
Reference
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