The ±10kV mechanical DC circuit breaker employs forced zero-crossing interruption, offering low on-state loss and cost advantages for power system protection equipment. The team overcame core challenges in topology optimization and arc control, achieving national certification. Its strong equivalence and high reliability lay the foundation for DC grid development. This breakthrough addresses the limitations of traditional circuit breakers in loss and speed, providing an efficient and economical new-generation solution for renewable energy grid integration.

Technology provider:Xi'an Jiaotong University Technology Transfer Center