Study on Wireless Measurement Device for Circuit Breaker Speed Characteristics Based on GPS Second Pulse Vector Signal Synchronization Technology
There currently exist problems of circuit breaker speed characteristics testing such as limited test line length,strong electromagnetic interference,and inadequacy in simultaneous three-phase test,resulting in time-consuming and la-bor intensive test practices.In view of this,the present work proposes to develop a wireless measurement device for cir-cuit breaker speed characteristics based on GPS second pulse vector signal synchronization technology,which is suitable for testing three-phase opening and closing speed of circuit breakers of different voltage levels such as 500 kV,220 kV,66 kV,etc.The use of the measurement device can help in realizing wireless measurement of circuit breaker speed character-istic travel curve,shortening on-site testing time,and improving speed characteristic measurement efficiency.
speed characteristicsGPS second pulsewireless synchronization