QBZ18系列矿用隔爆兼本安型真空电磁起动器

针对起动器产品存在的问题，对原BQD系列起动器产品进行了升级改造，采用快开门结构、真空电器、数字式电机综合保护等技术改造措施后，新系列起动器产品工作电压为1140V，亦可用于660V及380V供电系统，具有更加全面的保护功能；主电路的负载能力和控制电路的准确性、可靠性均有很大提高。进一步满足了煤矿井下控制和监控的需要，同时也解决了起动器规格不全引起的使用不合理问题。

Series QBZ18 Vacuum Electromagnetic Starter with Combining of Flameproof and Intrinsically Safe

The new Series BQD Starters are brought out through the upgrading of the old series against the existing problems. By adopting the fast-on structure, vacuum electrical unit, nominalization integrated protection for motors, the new Series starter can be supplied with 1140V operating voltage,as well as with 660 V and/or 380V. Furthermore, the load-carrying capacity of main circuit has been enhanced greatly and the accuracy and availability of the control circuit has been improved, either. So, the new series starters can be met the demands for supervising and controlling under coalmine,along with it, the problems of unreasonable use for the sake of shortage of specifications are solved.