vacuum interrupter
Embedded poles
vacuum interrupter for outdoor circuit breaker
vacuum interrupter for indoor circuit breaker
vacuum interrupter for load break switch
vacuum interrupter for contactor
Products >> Embedded poles
VEP2500/24-40 VEP458A

 

 

Main Technical Data    
Rated voltage                                                               kv 24
Rated current                                                              A 2000/2500
Rated frequency                                                          Hz 50
Rated short-circuit breaking current                               kA 40
Operations of short-circuit breaking current interruption   times 30
Rated short-circuit making current                                kA 100
Rated short-time withstand and current(4s)                     kA 40
Rated single capacitor bank breaking current                  A 630
Rated back-to-back capacitor bank breaking current        A 400
Short-time(1min) power-frequency withstand voltage        kv 79
Rated lighting impulse withstand voltage(peak)                kv 145
Machanical life                                                             times 30000
Contact closing force due to bellows and atmosphere      N 250±50
Counterforce at rated contact force                                 N 330±50
Circuit resistance at rated contact force                         μΩ ≤20
Shelf life                                                                        years 20
Part discharge                                                             pc 5
Rated operating sequence                                               0-0.3-CO-180s -CO
     
Mechanical Data of Circuit-Bearking Equipped with the Interrupters  
Contact erosion limit                                                                                         mm 3
Rated contact stroke                                                    mm 13±1
contac connection stroke                                             m/s 4±1
Average opening speed                                                 m/s 1.3±0.2
Average closing speed                                                  m/s 0.6±0.2
Added contact force                                                    N 4200±200
Bounce duration of contact closing                               ms  2
Out of simultaneity of contact closing and opening          mm  1
Max.overtravel                                                              ms  2
Note:Rated characteristics can be given on requirment

 

 
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