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3点(dian)维护低压(ya)变频(pin)器的(de)技巧

日期: 2021-10-19
浏(liu)览次数: 233

  能量回馈单元供应商提醒您:随着电力电子技术的发展,现在各个行业对于电压、电源的控制要求越来越高,相配套的高压或者低压变频器的结构也越来越复杂。对于低压变频器而言,要保证其正常稳定运行,必须要进行日常维同时要对一些常见故障进行简单的诊断和处理。下面是低压变频器常用的日常维护方法以及使用注意事项:


  一、常见变频器过热问题对策


  1.对于变频(pin)器运行环境温度较(jiao)高的(de)地方,建议降低变频(pin)器所在场所温度,加强冷却和(he)通风;

  2.增加(jia)定(ding)期维(wei)护变频(pin)器(qi)风扇、风道(dao)等频(pin)次(ci),以此提升变频(pin)器(qi)运行环境,使变频(pin)器(qi)保(bao)持持续散热(re)能力;

  3.监测变频器(qi)运行(xing)温度,建议采(cai)用(yong)变色测温贴片法监视(shi)变频器(qi)发热情况。


  二、变频器的日常检测内容


  1.检查操(cao)作面板是(shi)否正(zheng)常;

  2.检查电源电压(ya)、输出电压(ya)、直流(liu)电压(ya)是否正(zheng)常;

  3.检查电源(yuan)导线(xian)、输出(chu)导线(xian)是否发热、变形、烧坏;

  4.检查(cha)冷(leng)却风扇(shan)运转(zhuan)是否正(zheng)常;

  5.检(jian)查(cha)散热(re)器温度是否正常(chang)等方面。


  三、使用注意事项


  1.低压变频的使用受环境影响严重(zhong),应用时保证周围(wei)环境清洁(jie),温度控制(zhi)在40度以下,由于温度过高会严重(zhong)影响其寿命;

  2.接线时断(duan)开电源,应用万用表确定(ding)有无外加(jia)电压;

  3.接(jie)地(di)端完好接(jie)地(di);

  4.保(bao)证(zheng)湿(shi)度(du)、温(wen)度(du)、清洁度(du)适宜;

  5.接(jie)线布局正确,最重要的为输(shu)入(ru)和输(shu)出线路(lu);

  6.安装冷(leng)却和(he)通风设(she)备;

  7.在使用(yong)漏电开(kai)关(guan)前选(xuan)择高频漏电开(kai)关(guan);

  8.在变频器(qi)和电机(ji)之间禁(jin)止(zhi)安装补偿(chang)电容或(huo)电容限制器(qi),禁(jin)止(zhi)安装电磁接触器(qi)等。


  在(zai)进行低压变(bian)(bian)频(pin)器维护时,更应注意变(bian)(bian)频(pin)器安装环境(jing)的(de)(de)温度,定期清扫变(bian)(bian)频(pin)器内部灰(hui)尘(chen),确保(bao)冷却风(feng)路(lu)的(de)(de)通(tong)畅。不仅如(ru)此(ci),还需要加(jia)强巡(xun)检(jian),改善(shan)变(bian)(bian)频(pin)器、电机(ji)及线路(lu)的(de)(de)周边环境(jing),保(bao)证各个电气回路(lu)的(de)(de)正确连接,防止不必(bi)要的(de)(de)停机(ji)事(shi)故发生。

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