Abstract:The asynchronous electric motor is used in the electric stock industry. The inverter adjusts the speed of an asynchronous motor from level 0 to rated speed. An oil pumping plant comprises the bottom machine and the surface machine. The lower machine consists of the depth pump, gas and sand separator, extraction pipe, pump rods. The surface tool includes the pump unit and other equipment. In turn, the pumping unit consists of the rocker, mechanical gearbox, connecting rods, cranks and electric motor. In pump ex… Show more
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