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TF544S VITF 36/2000-20S


TF544S VITF 36/2000-20S


We have gained deep knowledge and expertise in making available quality tested Vacuum Interrupter For Load Breaking Switches to the valued clients. The Vacuum Interrupter For Load Breaking Switches, which we offer, find use in diverse industries due to their fabrication in accordance with the set industrial standards. What make Vacuum Interrupter For Load Breaking Switches preferred in comparison to the other alternatives available is their high electrical endurance.

Electrical Ratings (3Phase) Symmetrical Basis
Rated frequency 50/60Hz
Rated Voltage 36kV,r.m.s
Rated short-time power-frequency withstand voltage (1 min) 95kV,r.m.s
Rated lightning impulse withstand voltage 185kV,Peak
Rated Current 2000A
Maximum Contact Resistance at Minimum Closing Forceテ「可、35Micro ohms
Rated short-time withstand current 20kA,r.m.s
Rated duration of short-circuit 3s
Rated peak withstand current 50kA,r.m.s
Rated short-circuit making Current 20kA,r.m.s
Rated active load breaking current 2000A
Rated closed-loop breaking current 2000A
Rated capacity of no-load transformer 10A
Rated cable-charging breaking current 20A
Rated line charging breaking current 2A
Rated earth fault breaking current 60A
Rated cable and line charging breaking current under earth fault condition34.6A
*Rated breaking current of single capacitor bank400A
*Rated breaking current of back-to-back capacitor bank400A
Mechanical Data
Interrupter Weight(Approx.) 6.56kg
Weight of movable parts 2.68kg
Closing force due to bellow and atmosphere 170テつア30N
Force required to hold contacts open at full stroke320テつア50N
Mechanical Requirements (Ref. Lbs)
Clearance between open contacts 16テつア1mm
Average opening speed(average of first 75% of contact gap)1.6テつア0.2m/s
Average closing speed(average of last 30% of contact gap)0.8テつア0.2m/s
Rated added external contact final force 2000テつア100N
Contact bouncing duration at closing operation テ「可、2ms
Closing and Opening non-simultaneity of threephase Contactsテ「可、2ms
Maximum Rebound during opening テ「可、2ms
Life
Storage life 20years
Mechanical endurance 10000 Operations
Contacts limit erosion 3mm

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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