Analysis of the Influence of U-Shaped Arc Extinguishing Grid on Different Levels of Current Breaking
This article compares the breaking tests of two types of arc extinguishing grid structures at different current levels,and obtains the degree of influence of different arc extinguishing grid structures on different current breaking.The results show that the U-shaped structural characteristics of the arc extinguishing grid have no significant impact on the critical DC load current breaking,have an important impact on the rated current breaking,have a slight impact on the low short-circuit current breaking,and have no significant impact on the high short-circuit current breaking.This article analyzes the voltage and current waveforms of arcs under different DC currents,which can help improve the performance and reliability of products.
DC circuit breakerarc extinguishing grid structurecurrent interruptionmagnetic blowing
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