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| IMPROVEMENT OF SOUND CONTROL SYSTEM IN CENTRAL CONTROL ROOM OF HYDROPOWER STATION AND ELECTRIC SUBSTATION AT MINES |
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| DOI： |
| KeyWord:Technology of silicon controlled Relay Controlling system |
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| Shizhuyuan Nonferrous Metal Mine |
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| Abstract: |
| In this paper,the ZC-21A impact relay was improved with the silicon controlled rectifier.The contact tip switch is replaced by the non-contact tip switch.The improved impact relay has the advantages of high sensitivity,long service life,reliability of operation and simple structure.It has wide application and promotion value and plays an important role in the safety and economic operation of the hydropower station in Shizhuyuan Nonferrous Metal Mine. |
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