Model No.:EEP-12/4000-40 EEP-12/3150-40 vacuum circuit breaker embedded poles apply on circuit breaker,switchgear
Model No.:EEP-12/4000-40 EEP-12/3150-40
vacuum circuit breaker embedded poles with epoxy resin,is made by casting vacuum interrupters,main circuit conduct and mounting parts with epoxy into an integral part. The vacuum interrupters, however,should be enveloped well with a slight fold of silicon rubber jacket before that process.
1.can produce according to customer’s requirements
2.reasonable price and quickly delivery
3.OEM orders are welcome
Parameters of vacuum circuit breaker embedded poles
MAIN TECHNICAL SPECIFICATION UNIT SPECIFICATION 4000 3150 Rated voltage kV 12 Rated current A 4000 3150 Rated frequency Hz 50/60 Short-duration（1min） power frequency withstand voltage kV 48 Lightning impulse withstand voltage kV 95 Rated short-circuit breaking current kA 40 Rated peak withstand current kA 100 Rated short-circuit making current kA 100 Rated short-time withstand current kA 40 Rated duration of short-circuit S 4 Rated breaking current of single capacitor bank A 400 Rated breaking current of back to back capacitor bank A 400 Rated operating sequence o-0.3S-co180S-co Breaking operations of rated short circuit breaking current Time 30 Mechanical endurance Time 20000 Contact self-close force N 200±50 Force required to hold contacts open at full stroke N 300±50 Circuit resistance at lower limit of rated contact force mΩ ≤ 20 Contact limit erosion mm 3 Gas pressure inside vacuum interrupter Pa ≤ 1X10-3 Partial discharge Pc ≤ 5 Weight of moving parts Kg Weight of vacuum interrupter embedded poles Kg
Mechanical data required for the matched vacuum switchgear
MAIN TECHNICAL SPECIFICATION UNIT SPECIFICATION 4000 3150 Clearance between open contacts mm 9±1 Average opening speed m/s 1.05±0.15 Average closing speed m/s 0.7±0.1 Rated contact pressure N 5000±200 Contact bouncing duration at closing operation ms ≤ 3 Out of simultaneity of contact closing and opening ms ≤ 2 Bouncing back amplitude of opening contact mm ≤ 3
EEP-12/4000-40 EEP-12/3150-40 12kV vacuum circuit breaker embedded poles
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