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小型柴油发电机组防雷需要怎样的保护?

来源:http://www.huannengpower.com   发布于:2018-12-14

1、单机容量为300~1500kw的直配电机,选用9的维护接线进行过电压维护。单机容量为300kw及以下的高压直配电机,根据具体情况和运行经验,选用10(a)的维护接线,或10(b)的方式,只在线路入户处装设一组避雷器和电容器,并在靠近人户处的电杆上装设维护间隙或将绝缘子铁脚接地。单个重要电机选用9的维护接线。
1. Direct distribution machines with single capacity of 300-1500kw are maintained by over-voltage using 9 maintenance wiring. According to the specific situation and operation experience, a 10 (a) maintenance wiring or 10 (b) mode is selected for a single high voltage direct distribution machine with a capacity of 300 kW or less. Only a group of arresters and capacitors are installed at the entrance of the line, and maintenance clearances are installed on the poles near the house or insulator iron feet are grounded. The maintenance wiring of 9 is selected for single important motor.
2、 维护高压旋转电机用的避雷器,一般选用磁吹避雷器,避雷器宜靠近发电机装设。在一般情况下,避雷器可装在电机出线处;如接在每一组母线上的发电机不超越两台,或单机容量不超越500kw,且与避雷器的间隔不超越50m时,避雷器也可装在每一组母线上

QQ截图20171025151947.jpg2. Maintenance of high-voltage rotating motor arrester, generally choose magnetic blown arrester, arrester should be installed close to the generator. In general, the arrester can be installed at the outlet of the motor; if the generator connected to each group of buses does not exceed two, or the capacity of a single unit does not exceed 500 kw, and the distance between the arrester and the arrester does not exceed 50 m, the arrester can also be installed on each group of buses.
3、当直配电机中性点能引出且未直接接地时,应在中性点上装设磁吹或一般阀型避雷器。避雷器额外电压不该低于发电机高运行相电压,关于线电压为6.3kV的发电机应选用FCD-4型或FZ-4型4kV的避雷器;10. 5kV的发电机应选用FCD-6型或Fz-6型6kV的避雷器。
3. When the neutral point of the direct distribution machine can be drawn out and not grounded directly, the magnetic blower or general valve arrester should be installed on the neutral point. The additional voltage of the arrester should not be lower than the maximum operating phase voltage of the generator. For generators with line voltage of 6.3 kV, the FCD-4 or FZ-4 type 4kV arresters should be selected; for generators with 10.5 kV, the FCD-6 or Fz-6 type 6kV arresters should be selected.
有了上面的小总结,希望对广大客户有所帮助,如果有什么不理解的或者寻求帮助的请点击我们的官方网站:燃气发电机组http://www.huannengpower.com 或者来电咨询,我们会尽全力为您解决
With the above summary, I hope it will be helpful to our customers. If you don't understand or ask for help, please click on our official website: Gas Generator Unit http://www.huannengpower.com or call for consultation. We will try our best to solve it for you.

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