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Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
CN EN

VI for 40.5KV Embedded Poles TD555P

Model:VITD40.5/2500-25

Category:VI for 40.5KV embedded poles


Product details

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Main Technical Specification
VOLTAGE RATINGS
Rated voltage(Ur)kV40.5
Rated short-time(1min)power-frequency withstand voltage(Ud)kV95
Rated lightning impulse withstand voltage(Peak)(Up)kV185
Rated frequency(fr)Hz50
CURRENT RATINGS
Rated current(Ir)A2500
Circuit resistance at lowest rated contact forceμΩ≤15
Rated short-circuit breaking current(lsc)kA25
Breaking operations of rated short circuit breaking currentTimes30
Rated short-time withstand current(Ik)kA25
Rated duration of short-circuit(tk)s4
Rated peak withstand current(lp)kA63
Rated short-circuit making current(lMc)kA63
Rated cable-charging breaking current(lc)A50
Rated breaking current of single capacitor bank(lsb)A400/630
Rated breaking current of back-to-back capacitor bank(lbb)A400
MECHANICAL DATA
Weight of movable partskg≤3
Closing force due to bellow and atmosphereN250±50
Force required to hold contacts open at full strokeN330±60
MECHANICAL REQUIREMENTS
Clearance between open contactsmm18±2
Average opening speed (contact close position~75%contact gap)m/s1.7±0.2
Average closing speed (30%contact gap-contact close position)m/s1.0±0.2
Rated added external contact final forceN3100±200
Added external contact force at contact touch point2200±160
Contact bouncing duration at closing operationms≤3
Closing and opening non-simultaneity of three-phase contactsms≤2
Maximum rebound during openingmm≤2
LIFE
Storage lifeyears20
Rated mechanical enduranceTimes10000
Contacts limit erosionmm3

Relevant information

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