Circuit Breaker Analyzer HYGK-306A Features1) 12 contacts’closing time and opening time；2)Reclosing time；3)Opening or closing’s asynchronism；4)springing time or springing times；5)clearance between open contacts/gaps, over-travel, over-shoot and springback；6)speed at instant of contacts touching (separating)；7)Opening (Closing) max speed；8)Opening (Closing) average speed；9)Display and Print V-S curve10)Operating current curve；11) Closing resistance measurement12) Large color screen in touch operating

Circuit Breaker Analyzer HYGK-307 Features1) Closing and opening time measurement of 12 channels2) Max difference of closing or opening time measurement of three phases3) C-O and O-C time measurement4) Rated operation sequence test5) Bounce time and frequency measurement of breaker closing6) Circuit breaker closing and opening speed measurement7) Travel-time, coil current-time curve of circuit breaker…