Abstract

In this paper, a technology of high-voltage circuit breakers (HVCBs) driven by motor directly has been studied. Through simulation calculation and test measurement of test prototype, the motion characteristics of circuit breakers driven by motor directly are analyzed. The results of research show that the rotor inertia and output torque of motor are the key parameters to realize drive by motor directly. The driven by motor directly can meet the requirements of closing and opening operation, and can realize the real-time control of opening and closing operation process of HVCBs.

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