Grounding and protection of electricequipment of oil field enterprise has been discussed, and its grounding and protection proposed also for oil traction, drilling and prospecting.
对电气设备的接地与保护问题进行了论述，并对采油、钻井、物探等作业环境中的电气设备问题提出建议。
2
The traction power rectifier is the key equipment in the circuit of diesel locomotive with electric transmission.