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防爆技术领域公开的防爆变频器的多重化安全连锁保护系统及方法,具有的多重化安全连锁保护系统,它包括双快开门安全闭锁机构、多重化安全连锁保护电路。双快开门防爆变频器箱体的箱门上设置有双快开门安全闭锁机构,双快开门安全闭锁机构设置的转换开关与多重化安全连锁保护电路相连;多重化安全连锁保护电路由充放电安全闭锁电路、漏电检测安全闭锁电路、多路PWM故障闭锁电路、无源交直流带电显示电路和常规继电器安全保护电路构成;该系统能够实现复杂而又准确的预保护,安全系数高、保护可靠且升级便利。具有系统总成化、插拔式结构组合化等原则,及无源在线式实时检测、安全报警、体容比小及性能好等特点。
Explosion-proof technology disclosed in the explosion-proof inverter multiple safety chain protection system and method, with multiple safety chain protection system, which includes a double quick open the door safety lock mechanism, multiple safety chain protection circuit. Dual fast open door explosion-proof inverter cabinet box door with double quick open door safety latch mechanism, double quick open door safety latch mechanism set the switch connected with multiple safety chain protection circuit; multiple safety chain protection circuit by charge and discharge safety A latch circuit, a leakage detection safety latch circuit, a multi-channel PWM fault latch circuit, a passive AC-DC charge display circuit and a conventional relay safety protection circuit. The system can realize complex and accurate pre-protection with high safety factor, Upgrade convenience. With system assembly, plug-in structure combination of principles, and passive online real-time detection, safety alarm, small body size and performance characteristics.