24kv High Voltage Embedded Pole for Vacuum Circuit Breaker

Embedded poleVEP-24/1250-31.5(VAC700)VEP-24/1600-31.5(VAC700)1.General description    Embedded pole uses the insulation material to reliably sealing combine vacuum interrupter and the main loop conductive element, and the insulation support as a whole, which has the advantages of simple assembly, stable weight, high re

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Embedded pole
VEP-24/1250-31.5(VAC700)
VEP-24/1600-31.5(VAC700)

1.General description
    Embedded pole uses the insulation material to reliably sealing combine vacuum interrupter and the main loop conductive element, and the insulation support as a whole, which has the advantages of simple assembly, stable weight, high reliability and strong environmental pollution tolerance.
    Matched with relevant indoor&outdoor vacuum circuit breaker or vacuum distribution device, it is especially useful to frequent operation places, such as electric power, machinery, chemical industry, metallurgy, mining and other departments, with frequency 50Hz/60Hz, rated voltage 12kV, 17.5kV, 24kV, 27.5kV, 40.5kV.
    Meets or exceeds the requirement of IEC60694 and JB-T11203-2011.

2.Main technical parameter
Specification of VI
Parameter itemUnitData
Rated voltagekV24
Rated currentA1250/1600
Rated frequencyHz50/60
Rated short-time power frequency withstand voltage(1min)kV65(79)
Rated lightning impulse withstand voltagekV125(145)
Rated short-circuit breaking current kA25
Rated short-time withstand currentkA63
Rated peak withstand currentkA63
Rated short-circuit making currentkA25
Rated short-circuit durations4
Rated single capacitor bank breaking currentA400
Rated back to back capacitor bank breaking currentA400
Rated operating sequence O-0.3s-CO180s-CO
Breaking operations of rated short circuit breaking currenttimes20
Mechanical lifetimes10000
Contact automatic closing abilityN210±50
Force required to hold contact open at full strokeN340±50
Circuit resistance at lowest rated contact forceμΩ≤25
Contact limit erosionmm3
Internal gas pressure of vacuum interrupterPa≤1×10-3
Partial dischargePc≤5

Specifications required for matched switchgear
Parameter itemUnitData
Clearance between open contactsmm13±1
Average opening speedm/s1.40±0.2
Average closing speedm/s0.7±0.2
Rated contact pressureN2600±200
Contact bouncing duration at closing operationms≤2
Closing and opening non-simultaneity of contactsms≤2
Maximum rebound during openingmm≤2

3.Product show
24kv High Voltage Embedded Pole for Vacuum Circuit Breaker

4.International fairs
24kv High Voltage Embedded Pole for Vacuum Circuit Breaker

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