Smart Distribution Network

On the basis of isolating faults through primary and secondary fusion circuit breakers, this scheme uses fault indicators to further shorten the fault interval. The solution solves the global problem of single-phase grounding fault detection and location, and supports different grounding methods such as ungrounded systems, arc suppression coil grounding systems, and direct grounding systems. The comprehensive positioning accuracy of grounding faults reaches 95%.

Fault Location

●The multi criteria fusion fault recognition algorithm can effectively extract the characteristics of grounding faults, and the main station can make judgments based on comprehensive distributed waveform data, with a recognition rate of ≥ 95%.

Fault Warning

●Equipment fact monitoring instantaneous grounding faults, calculating the degree of insulation degradation and the probability of permanent faults based on the frequency and degree of instantaneous faults, and issuing warnings.

Fault Tracing

●Based on theoretical analysis and a large amount of on-site data for feature extraction and training, faults such as tree obstacles, damaged porcelain bottles, and damaged lightning arresters can be identified.

Distributed Waveform Recording

●Record real-time data of current and voltage at the moment of fault.

●The accuracy of three-phase synchronous waveform recording time is less than 10 μ s, accurately synthesizing the fault zero sequence current and saving the waveform data for the fault moment.