Author(s): SONG Zhiquan, FU Peng
Pages: 481-484
Year: 2006 Issue:  4
Journal: PLASMA SCIENCE AND TECHNOLOGY
Keyword:  direct current circuit breaker; insulator recovery time; commutating current; contact;
Abstract: This paper introduces the configuration and the operation principles of a high power direct current circuit breaker (DCCB). The commutating current principle of the breaker is described in details with its theory and simulation analysis. The test results presented show that the DCCB meets the requirements for quenching protection. It will be used as the main breaker for quench protection in EAST.