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  • Vacuum Embedded Pole 405kV EEP-4051600-315 EEP-4051250-315
  • Vacuum Embedded Pole 405kV EEP-4051600-315 EEP-4051250-315

Vacuum Embedded Pole 405kV EEP-4051600-315 EEP-4051250-315

Description:

Vacuum embedded pole 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.

  • Product Description
  • Model No: EEP-40.5/1600-31.5 EEP-40.5/1250-31.5

    Vacuum embedded pole 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.

    Parameters of vacuum embedded pole

    MAIN TECHNICAL SPECIFICATION UNIT SPECIFICATION
    1600 1250
    Rated voltage kV 40.5
    Rated current A 1600 1250
    Rated frequency Hz 50/60
    Short-duration1min) power frequency withstand voltage  kV 95
    Lightning impulse withstand voltage kV 185
    Rated short-circuit breaking current kA 31.5
    Rated peak withstand current kA 80
    Rated short-circuit making current kA 80
    Rated short-time withstand current kA 31.5
    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 20
    Mechanical endurance Time 10000
    Contact self-close force N 120±50 
    Force required to hold contacts open at full stroke N 240±50 
    Circuit resistance at lower limit of rated contact force ≤ 35 
    Contact limit erosion mm 3
    Gas pressure inside vacuum interrupter Pa ≤ 1X10-3 
    Partial discharge Pc ≤ 
    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
        1600 1250
    Clearance between open contacts mm 18±
    Average opening speed m/s 1.55±0.15 
    Average closing speed m/s 0.7±0.2 
    Rated contact pressure N 3200±200 
    Contact bouncing duration at closing operation ms ≤ 
    Out of simultaneity of contact closing and opening ms ≤ 
    Bouncing back amplitude of opening contact mm ≤ 

     

    Information for vacuum embedded pole

    From the development of insulations on breakers,it can be divided into three generations:air, composite and solid insulation and so-called solid insulation means vacuum embedded pole,which might represent the great advancement of insulation on vacuum breakers.Since the epoxy can be used to replace the insulating and mechanical supports,the breakers therefore become compact and simple and are able to service under humid and dusty conditions.When the external insulations of miniature chambers in air condition fail to fulfill the requests of specifications,vacuum embedded pole are therefore introduced and now become one of the most applicable ways in the field of medium voltage breakers either at home or abroad.

 

vacuum embedded pole 24kV EEP-40.5/1600-31.5 EEP-40.5/1250-31.5

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