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　　Motor LKE is a permanent magnetic DC motor developed for new-type spring operational structure of vacuum breaker by the company, adopting 4-level gear transmission. This motor has hard mechanical character, powerful overload capability and reliable motion etc, which is a desirable product of generaion replacement for energy storage and driving in the industry of high-tension/low-tension electric apparatus. It has been widely used by main manufacturers of high-tension electric apparatus industry.