The above products have passed national coal mine explosion-proof security product quality supervision and inspection center, explosion-proof test, acquired qualified certificates.
2
本文对一种用于煤矿井下防爆绞车驱动的交交变频器——鼠笼式异步电机传动系统做了全面的介绍。
The paper thoroughly introduces the ac-ac frequency converter in driving system of asynchronous motor for underground coal mine explosion-proof winder.
3
针对煤矿对现场总线本质安全防爆的要求，采用了改进的统一供电法，设计了电源适配器和通讯适配器。
According to the EX i explosion-proof request on field bus used in coal mine, improved uniform power supply is adopted. Power supply adapter and communication adapter is designed also.
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