In the process of developing submarine cable laying installation for Shengli Oil Field, a certain problem has occurred with overcurrent tripping during switching on of step up transformer.
在为胜利油田研制海底电缆铺设装置过程中，曾发生升压变压器合闸时过电流跳闸问题。
In the process of developing submarine cable laying installation for Shengli Oil Field, a certain problem has occurred with overcurrent tripping during switching on of step up transformer.
在为胜利油田研制海底电缆铺设装置过程中，曾发生升压变压器合闸时过电流跳闸问题。
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