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提高煤矿井下电网功率因数问题,不仅具有普遍意义,而且其经济效益也是极大的。安宝歧同志的这篇文章从实践和理论上说明了这个问题。本刊推荐这篇文章,希望能够引起足够的重视。 本文介绍了开滦范各庄矿在井下用两台同步电动机代替原有的异步电动机提高井下电网功率因数的情况。河北煤研所正在研制防煤型电容器及其自动调节装置,作为国家重点科研项目之一,年内制出样机并下井投入试验。用户可根据本单位具体情况,择优选用。
Improving the power factor of coal mine underground power grid not only has universal significance, but also its economic benefits are also great. This article from Comrade Anbaoqi illustrates this issue in practice and in theory. Articles recommend this article, hoping to attract enough attention. This article describes the case of Fangezhuang Mine in Kailuan, where two synchronous motors are used instead of the original asynchronous motor to improve the power factor of the underground power grid. Hebei Coal Research Institute is developing coal-type capacitors and automatic adjustment device, as one of the state’s key scientific research projects, the prototype was made during the year and went into trial. Users can according to the specific circumstances of the unit, choose the best use.