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TD524M VITD 36/1250-20M


TD524M VITD 36/1250-20M

Vacuum Interrupters For Circuit Breakers that we offer are safe to use in electrical appliances. We make sure that Vacuum Interrupters For Circuit Breakers that we provide have high performance and can sustain extreme temperature conditions. We source Vacuum Interrupters For Circuit Breakers from well-known vendors in the industry.

Electrical Ratings (3Phase) Symmetrical Basis
Rated frequency50/60Hz
Rated Voltage36/40.5kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min)70/95kV,r.m.s
Rated lightning impulse withstand voltage170/185kV,Peak
Rated Current1250A
Circuit resistance at lowest rated contact forceテ「可、20Micro ohms
Rated short-circuit breaking Current20kA,r.m.s
Rated short-time withstand current20kA,r.m.s
Rated duration of short-circuit4s
Rated peak withstand current50kA,r.m.s
Rated short-circuit making Current50kA,r.m.s
Max. Dc component40.00%
*Rated breaking current of single capacitor bank630A,r.m.s
*Rated breaking current of back-to-back capacitor bank400A,r.m.s
Rated operating sequenceO-0.3(0.5)s-CO- 180s-CO
Mechanical Data
Interrupter Weight(Approx.)4.02kg
Weight of movable parts2.0kg
Closing force due to bellow and atmosphere170テつア40N
Force required to hold contacts open at full stroke320テつア50N
Mechanical Requirements (Ref. Vcb)
Clearance between open contacts16テつア1mm
Average opening speed(average of first 75% of contact gap)1.5テつア0.3m/Sec
Average closing speed(average of last 30% of contact gap)1.1テつア0.2m/Sec
Rated added external contact final force2000テつア200N
Contact bouncing duration at closing operationテ「可、2ms
Closing and Opening non-simultaneity of three-phase Contactsテ「可、2ms
Maximum Rebound during openingテ「可、2mm
Life
Electrical Life at Rated Normal Current20,000 Operations
Electrical Life at Rated Short Circuit Current50O Operations
Mechanical Life30,000 Operations
Contact Erosion Limit3mm
Shelf Life20Years

Note
  • Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008
  • * Rated Characteristics to be given on request.

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