hign voltage circuit breaker ( 36kv, 40.5kv ,vacuu

The VMD5 series is our independent developed new generation 40.5 kvhigh voltagevacuuum circuit breaker .We independent developed it as per international standards. All the technical parameters of breaker completely satisfy the Standards Of GB1984 AC Highvoltage Breaker, GB/T 11022 -1999 Common Specifications For High-Voltage Switchgear And Controlgear Standards, China Power Sector Standards DL403. Also meet the requirements of IEC62271-100, IEC56 and other main industrialized countrys similar standards NOItemUnitTechnical Date1Rated voltagekV40.52Rated insulating levelRated short time power frequency withstand voltage(1min)95Rated lighting inpulse withstand voltage (peak value)1853Rated FrequencyHz50/604Rated currentA6306301250125012501600200025005Rated short circuit breaking currentkA202531.56Rated short time withstand current202531.57Rated peak withstand current50638084S rated short-time withstand current202531.59Rated shock steady current50638010Rated short-circuit closing current (peak value)50638011Duration of rated short-circuit currentS412Mechanical lifeTimes1000013Rated making surge current of capacitor bankkA12.5 (The frequency is less than 1000Hz)14Rated breaking current of single/symmetrical capacitor bankA630/40015Breaking times at rated short-circuit currentTimes2016Power frequency withstand voltage of secondary circuitV200017Rated operating voltageAC110/220DC110/22018Rated operating orderO-0.3s-CO-180s-CO19Energy storage timesS≤1520Contactor spacemm20 ± 221Contacting travel6 ± 122Pole distance300 ± 1.523Bounce time of Contactor during makingms≤324Different time of breaking / making of 3 phases≤225Average breaking speedm/s1.5-1.926Average making speed0.6-1.327Making timems30-8028Brealing time20-4529Rebound amplitude of contact breakingmm≤330Permitted abrasion thickness of moving and fixed contacts331Conductance circuit resistanceμΩHandcart wayRated current≤60under 1250A≤601600-2000A≤40under 2500A