Improvement and Application of Secutity Features of DSN Indoor Electromagnetic Lock of 10 kV High Voltage Switch Cabinet
In this paper,the security loopholes of DSN type indoor electromagnetic lock in the high voltage switch cabinet are studied.Analyzing the working principle and security performance of DSN type indoor electromagnetic lock,it has found that there are certain risks when operating with mechanical key,due to the lack of electrical interlock function.In order to enhance the safety and reliability of DSN type indoor electromagnetic lock,the electrical interlock function is realized when the circuit breaker is in the live state by improving the internal linkage mechanism of the electromagnetic lock and introducing the closing posi-tion signal of the circuit breaker.The experimental results show that the improved DSN indoor electromag-netic lock has effective security protection function and can guarantee the safe operation of electrical equip-ment.
high voltage switch cabinetDSN typeindoor electromagnetic locksecurity feature improvement
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