News
Guard dog circuit breaker anti - jamming measures
Time：2019-10-16 12:21:59 Hits：82
Due to the watchdog circuit breaker working in a more severe electromagnetic environment, strong interference will make the system monitoring program out of control, out of the normal execution sequence, or even send out the wrong control signal, resulting in the circuit breaker misoperation. Therefore, the anti-interference performance of the trip device largely determines whether the circuit breaker can work normally and the accuracy and reliability of its action. In order to ensure the reliability of the system, intelligent circuit breaker often adopts the anti-interference technology which combines software and hardware. Using power filtering technology in hardware design, grounding and shielding, isolation technology, reasonable wiring, SMD encapsulation, and make moisture-proof and insulation, hardware watchdog measures such as adopting digital filtering technology in software design, software trap, empty instruction, symmetry method, limiting method, an improved algorithm based on wavelet analysis and FFT, software watchdog, such as technology, to ensure the accurate and reliable, intelligent circuit breaker closing, avoid caused by system faults and can't open circuit or misoperation.
Zeng
