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在工矿企业中,复杂的线路安装与检修以后,必须定相,否则相位一错,将造成重大的短路事故,使供电中断,企业停产,对于人身和设备安全也带来危险。我矿曾经就有一次因忽略定相,致使6KV线路三相短路,停产一个多小时,损失万余元。此后,我们就用土法试制成功1—10KV定相器,解决了复杂线路的安装和检修后的定相问题。这种定相器简单,可靠,准确,使用方便,并能用于现场测定泄漏电流。具体做法如下:
In industrial and mining enterprises, complex lines must be phased out after installation and maintenance. Otherwise, a phase error will result in a major short circuit accident, which will interrupt the power supply and stop the production of the enterprise, posing a danger to the safety of personal and equipment. I once mine ignores the phasing, resulting in 6KV line three-phase short circuit, stop more than an hour, loss of more than 10,000 yuan. Since then, we have successfully trialled the 1-10KV phaser with the indigenous method to solve the phasing problems after the installation and overhaul of complex lines. This phase detector is simple, reliable, accurate, easy to use, and can be used for on-site determination of leakage current. Specific practices are as follows: