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TF314B Vacuum Interrupter

Basic Info

Model No.: VITF 12/630-20B

Product Description

Vacuum Interrupter for Load Breaker Switch

VITF 12/630-20B

1.Rated frequency 50/60Hz
2.Rated Voltage 12kV,r.m.s
3.Rated short-time power-frequency withstand voltage (1 min) 42kV,r.m.s
4.Rated lightning impulse withstand voltage 95kV,Peak
5.Rated Current 630A
6.Maximum Contact Resistance at Minimum Closing Force 35Micro ohms
7.Rated short-time withstand current 20kA,r.m.s
8.Rated duration of short-circuit 4s
9.Rated peak withstand current 50kA,r.m.s
10.Rated short-circuit making Current 50kA,r.m.s
11.Rated active load breaking current 630A
12.Rated closed-loop breaking current 630A
13.Rated capacity of no-load Transformer 1250kVA
14.Rated cable-charging breaking current 10A
15.*Rated breaking current of single capacitor bank 400A
16.*Rated breaking current of back-to-back capacitor bank 400A
1.Interrupter Weight(Approx.) 0.98kg
2.Weight of movable parts 0.41kg
3.Closing force due to bellow and atmosphere 7030N
4.Force required to hold contacts open at full stroke 13050N
1.Clearance between open contacts 81mm
2.Average opening speed(average of first 75% of contact gap) 1.20.2m/s
3.Average closing speed(average of last 30% of contact gap) 0.60.2m/s
4.Rated added external contact final force 1000100N
5.Added external contact force at contact touch point 75080N
6.Contact bouncing duration at closing operation 2ms
7.Closing and Opening non-simultaneity of three-phase Contacts 2ms
8.Maximum Rebound during opening 2ms
1.Storage life 20years
2.Mechanical endurance 10000Operations
3.Contacts limit erosion 3mm
1.Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008.
2.* Rated Characteristics to be given on request

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