NEW REQUIREMENTS IN CIRCUIT BREAKER DIAGNOSTICS INTEGRATION OF NEW CIRCUIT BREAKER TEST METHODS

摘要

The paper describes recent developments in circuit breaker diagnostic testing. Improved safety and more accurate assessment of circuit breaker contacts are discussed. In addition, the paper presents standard methods for circuit breaker diagnostics. Examples are given for some of the test methods showing the existence of a defect in a circuit breaker. Special attention is paid to the requirements for a CB analyzer to integrate all of the test methods described and at the same time test most of the existing types of circuit breakers.