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In order to overcome the
disadvantages of relay-contactor control, i. e. more failures, low reliability and huge maintenance,
the applications of programmable controller (PLC) for coal-preparation in coking process and coke sieve
system are introduced. The selection of the PLCs, design criteria and the anti-interference measures in
installation and test are emphasized. 相似文献
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合理选用高效电动机节能增效前景广阔河北理工学院(唐山063009)岳素梅1前言电动机在工业传动领域中占主导地位,电动机用电占很大比重,仅全国水泵、风机、压缩机的传动电动机用电量占全国发电总量的40%~50%。所以合理选用高效电动机,提高电能利用率,使... 相似文献
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