用于直流配电系统的塑壳电子辅助断路器

This article introduces a new dc hybrid circuit breaker (HCB) concept termed electronically assisted circuit breaker (EACB). A conventional ac mechanical molded case circuit breaker (MCCB) is used to interrupt dc fault currents with the assistance of an electronic commutation circuit, which is activated for a short time period only during the late phase of the breaking process. Unlike other prior ...