Development of local ventilator starter Local ventilator starter has evolved from early vacuum electromagnetic starter, dual power vacuum electromagnetic starter to dual power supply electric lock vacuum electromagnetic starter, and its development trend is more and more integrated, function More and more. Therefore, from the perspective of reducing costs, reducing equipment failure rate, and simplifying the link, the mine fan explosion-proof dual-supply electric lock vacuum electromagnetic starter will be the preferred switch for dual-fan dual-power retrofit.

Mine fan flameproof vacuum electromagnetic starter. It is powered by one power supply and has one wiring cavity and one main cavity. Its characteristic is that it can only control one fan, and it is a single loop power supply with a single function. (2) Mine fan flameproof dual power vacuum electromagnetic starter. It adopts two-way power supply, and has two independent wiring chambers and main chambers respectively, which are equivalent to two ordinary starters and are together to control the working fan and the standby fan respectively. It is characterized by the ability to control two fans and has a dedicated interface for electrical locking with the power load control switch. (3) Sieve sand machine mine fan explosion-proof dual power supply electric lock vacuum electromagnetic starter. It is powered by two power supplies, each with two independent wiring chambers and a main cavity, which is equivalent to two independent starters, one control working fan and one control power load, and there is an electrical locking device in between. It is characterized by the ability to control two fans and has a mechanism for electrically locking the working fan starter and the power load.

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