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TD524B VITD 36/1250-20B


TD524B VITD 36/1250-20B

We have positioned ourselves among the preeminent Vacuum Interrupter For Circuit Breaker Exporters & Suppliers in Utter Pradesh (India). The Vacuum Interrupter For Circuit Breaker that we offer is fabricated utilizing the advanced production techniques and thus, ensures high performance. The durable Vacuum Interrupter For Circuit Breaker is economically priced by us.

Electrical Ratings (3Phase) Symmetrical Basis
Rated Frequency 50/60Hz
Rated Maximum Line to Line Voltage 36/40.5kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min) 70/95kV,r.m.s
Rated lightning impulse withstand voltage 170/185kV,Peak
Rated Normal Current 1250A
Circuit resistance at lowest rated contact force テ「可、20Micro ohms
Rated short-circuit breaking Current 20kA,r.m.s
Rated short-time withstand current 20kA,r.m.s
Rated duration of short-circuit 4s
Rated peak withstand current 50kA,r.m.s
Rated short-circuit making Current 50kA,r.m.s
Max. Dc component 40.00%
*Rated breaking current of single capacitor bank 630A,r.m.s
*Rated Breaking Current of Back-to-Back Capacitor Bank 400A,r.m.s
Rated operating sequence O-0.3(0.5)s-CO- 180s-CO
Mechanical Data
Interrupter Weight (Approx.) 4.18kg
Moving Part Weight (Approx.) 2.1kg
Closing Force due to Bellow and Atmospheric 170テつア40N
Force Required to Hold Contacts open at Full Stroke 320テつア50N
Mechanical Requirements (Ref. Vcb)
Clearance between open contacts 16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 force 2000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
Clearance between open contacts
Life
Electrical Life at Rated Normal Current 20,000 Operations
Electrical Life at Rated Short Circuit Current 50 Operations
Mechanical Life 30,000 Operations
Contact Erosion Limit 3mm
Shelf Life 20Years

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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