提升机直流传动主回路保护优化

Optimization of the main circuit of the hoist DC drive

提升机直流传动主回路中,变流器是最脆弱的设备,防止过电压和过电流对变流器的损害是主回路保护的核心,文章提出优化经典变流器主回路保护设计的思路。

Main loop current transformer is the most fragile devices in hoist dc transmission. So preventing overvoltage and overcurrent the damage to the inverter is the core of the main circuit protection. this paper puts forward optimized classic inverter main circuit protection design train of thought.