Vakuumschaltröhre

vacuum interrupter High voltage vacuum interrupter, detaild spec as following table: No. MainTechnicalSpecification Typecode36500 TD27-36/2000-25 TD27-36/2000-31.5 VOLTAGERATINGSATRATEDCONTACTSTROKE 1 Ratedfrequency Hz 50/60 2 RatedVoltage kV 36 3 Ratedshort-timepower-frequencywithstandvoltage(1min) kV 70 4 Ratedlightningimpulsewithstandvoltage kV 170 CURRENTRATINGS 1 RatedCurrent A 2000 2 Circuitresistanceatlowestratedcontactforce mW ≤25 3 Ratedshort-circuitbreakingCurrent kA 26.3 31.5 4 Breakingoperationsofratedshortcircuitbreakingcurrent Times 90 5 Ratedshort-timewithstandcurrent kA 26.3 31.5 6 Rateddurationofshort-circuit s 3 7 Ratedpeakwithstandcurrent kA 67 80 8 Ratedshort-circuitmakingCurrent kA 67 80 9 Ratedbreakingcurrentofsinglecapacitorbank A 1200 10 Ratedbreakingcurrentofback-to-backcapacitorbank A 400 11 Ratedline-chargingbreakingcurrent A 50 12 Ratedoperatingsequence O-0.3s-CO-180s-CO MECHANICALDATA 1 Weightofmovableparts kg 2.5 2 Closingforceduetobellowandatmosphere N 190±50 3 Forcerequiredtoholdcontactsopenatfullstroke N 300±50 MECHANICALREQUIREMENTS 1 Clearancebetweenopencontacts mm 22±2 2 Averageopeningspeed(averageoffirst75%ofcontactgap) m/s 1.3±0.3 1.5±0.1 3 Averageclosingspeed(averageoflast30%ofcontactgap) m/s 1.05±0.15 4 Ratedaddedexternalcontactfinalforce N 2300±300 3200±300 Addedexternalcontactforceatcontacttouchpoint 1600±100 2250±160 5 Contactbouncingdurationatclosingoperation ms ≤2 6 ClosingandOpeningnon-simultaneityofthree-phaseContacts ms ≤2 7 MaximumReboundduringopening mm ≤4 LIFE 1 Storagelife years 20 2 Mechanicalendurance Times 10000 3 Contactslimiterosion mm 3 NOTES MeetsorexceedstheelectricalendurancerequirementsofclassE2forautoreclosingdutyperIEC62271-100andGB1984-2003. Ratedcharacteristicstobegivenonrequest.