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小型柴油發電機組防雷需要怎樣的保護?

來源:http://dgxcbw.comD88尊龙   發布于:2018-12-14

1、單機容量為300~1500kw的直配電機,選用9的維護接線進行過電壓維護。單機容量為300kw及以下的高壓直配電機,根據具體情況和運行經驗,選用10(a)的維護接線,或10(b)的方式,只在線路入戶處裝設一組避雷器和電容器,并在靠近人戶處的電桿上裝設維護間隙或將絕緣子鐵腳接地。單個重要電機選用9的維護接線。
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、 維護高壓旋轉電機用的避雷器,一般選用磁吹避雷器,避雷器宜靠近發電機裝設。在一般情況下,避雷器可裝在電機出線處;如接在每一組母線上的發電機不超越兩臺,或單機容量不超越500kw,且與避雷器的間隔不超越50m時,避雷器也可裝在每一組母線上

QQ截圖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、當直配電機中性點能引出且未直接接地時,應在中性點上裝設磁吹或一般閥型避雷器。避雷器額外電壓不該低于發電機高運行相電壓,關于線電壓為6.3kV的發電機應選用FCD-4型或FZ-4型4kV的避雷器;10. 5kV的發電機應選用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.
有了上面的小總結,希望對廣大客戶有所幫助,如果有什么不理解的或者尋求幫助的請點擊我們的官方網站:燃氣發電機組http://dgxcbw.com 或者來電咨詢,我們會盡全力為您解決
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://dgxcbw.com or call for consultation. We will try our best to solve it for you.

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