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In order to improve the intelligent operation level of the motor operation mechanism of 126kV vacuum circuit breaker, A control method of PWM rectifier real-time adjusting drive motor speed is proposed. The equations of motion of Brushless DC motor are given, the speed response characteristic of motor is analyzed, and the controllability of motor is studied. The working principle of PWM rectifier...
A kind of monitoring and recording system of mechanical characteristics of high voltage circuit breaker is designed in this paper. The system that has the characteristic with microsecond single point acquisition speed and microvolt level amplitude resolution can collect information data of different mechanical characteristics of high voltage circuit breaker and automatic distinguishing data to fault...
The prototype of limited angle permanent magnet motor and the performance testing are researched based on the mechanical property requirements of 40.5kV vacuum circuit breaker. The system of performance testing is accomplished according to the permanent magnet motor and circuit breaker. Sensors with high precision are selected, and the circuit and method of testing are designed. The mechanical characteristics...
The mechanical properties monitoring system of permanent magnet motor operating mechanism is developed base on the indoor 40.5kV vacuum circuit breaker in order to improve the security and reliability of power system. The high-precision linear displacement sensor is used to measure the stroke of moving contact, the angular sensor is employed to test the rotation angle of motor, and the hall current...
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