Circuit breakers on 10kV lines in distribution network automation

In 10kV substations, vacuum circuit breakers are commonly adopted for both incoming lines and transformer high-voltage sides. Standard rated currents include 630A, 1250A, 1600A, 2000A, 2500A, 3150A, and 4000A, paired with corresponding breaking capacities as follows:A DC circuit breaker is piece of core equipment for DC grid construction and can achieve fast isolation of DC faults in the grid. With mature structure, stable performance and economic cost, it is widely used in 10kV indoor switchgear and distribution substations. SN10-10. To meet the application demand of multi-terminal flexible DC power network, this article designs a 10 kV mechanical DC circuit breaker. Firstly, its topology and working principle are explained. Introduction The word Automation means doing the particular task.