产品规格: | 不限 |
所属行业: | 电气 低压电器 接触器 |
包装说明: | 无 |
产品数量: | 9999.00 |
价格说明: | 面议 |
打印本页 添加收藏夹 点此询价 |
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
漏电断路器跳闸的几种常见原因及解决
漏电断路器的工作原理是:
正常工作时电路中除了工作电流外没有漏电流通过漏电保护器,此时流过零序互感器(检测互感器)的电流大小相等,方向相反,总和为零,互感器铁芯中感应磁通也等于零,二次绕组无输出,自动开关保持在接通状态,漏电保护器处于正常运行。当被保护电器与线路发生漏电或有人触电时,就有一个接地故障电流,使流过检测互感器内电流矢量和不为零,互感器铁芯中感应出现磁通,其二次绕组有感应电生,经放大后输出,使漏电脱扣器推动自动开关跳闸达到漏电保护的目的。
漏电断路器跳闸故障现象的几种常见原因及解决:
*1种:漏电断路器的额定电流小于线路实际工作电流,发生过载保护跳闸。
故障现象:用电负荷较大时,漏电开关跳闸。
故障原因:经分析线路接线正确无误,1、负荷计算错误漏电开关选错,开关的额定电流小于线路实际工作电流,漏电开关过载故障跳闸;2、负荷计算正确,漏电开关使用正确,人为使用大功率电器设备,漏电开关过载保护跳闸。
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
常用低压电器故障及维修
1 接触器的故障及维修 除去上边已经介绍过的触头和电磁系统的故障分析和维修外。其他常见故障如下所述。
(1)触头断相。因某相触头接触不好或联接螺钉松脱造成断相,使电机缺相运行。此时,电机也能转动,但转速低并发出较强的“嗡嗡”声。发现这种情况,要立即停车检修。
(2)触头熔焊。接触器操作频率过高、过载运行,负载侧短路、触头表面有导电颗粒或触头弹簧压力过小等原因,都会引起触头熔焊。发生此故障即使按下停止按钮,电机也不会停转,应立即断开**级开关,再进行检修。
(3)相间短路。由于接触器正反转联锁失灵 , 或因误动作致使两台接触器同时投入运行而造成相间短路;或因接触器动作过快,转换时间短,在转换过程中,发生的电弧短路。凡此类故障,可在控制线路中采用接触器、按钮复合联锁控制电动 机的正反转。
2 热继电器的故障及维修 热继电器的故障一般有热元件烧坏、误动作和不动作等现象。
(1)热元件烧断。当热继电器动作频率太高,负载侧发生短路或电流过大,致使热元件烧断。欲排除此故障应先切断电源,检查电路排除短路故障,再重选用合适的热继电器,并重新调整定值。
(2)热继电器误动作。这种故障的原因是:整定值偏小,以致未过载就动作;电动机起动时间过长,使热继电器在起动过程中就有可能脱扣;操作频率过高,使热继电器经常受起动电流冲击 ;使用场所强烈的冲击和振动,使热继电器动作机构松动而脱扣;另外如果联接导线太细也会引起热继电器误动作。针对上述故障现象应调换适合上述工作性质的热继电器,并合理调整整定值或更换合适的联接导线。
(3)热继电器不动作。由于热元件烧断或脱落,电流整定值偏大,以致长时间过载仍不动作 ;导板脱扣;联接线太粗等原因,使热继电器不动 作,因此对电动机也就起不到保护作用。根据上述原因,可进行针对性修理。另外,热继电器动作脱扣后,不可立即手动复位,应过 2 min,待双金属片冷却后,再使触头复位。
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
订货号
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
LC1D245M5C
LC1D245M7C
LC1D245Q5C
LC1D300M7C
LC1D300Q7C
LC1D410F7C
LC1D410M7C
LC1D410Q7C
LC1D475F7C
LC1D475M7C
LC1D475Q7C
LC1D620M7C
LC1D620Q7C
http://longxun.cn.b2b168.com