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High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V

Categories Vacuum Circuit Breaker
Brand Name: Metalwork
Model Number: 3AV5-12/1250-31.5
Certification: CE, ISO, CCC
Place of Origin: China
MOQ: 1 set
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 100 sets per month
Delivery Time: 20 days
Packaging Details: Plywooden package
Model: 3AV5-12/1250-31.5
Breaking Capacity: 31.5KA
Rated Voltage: 12KV
Rated Current: 1250A
Mechanical Life: 10000 times
Motor Voltage: DC/AC 110V 220V
Types: withdrawable, stationary, side-mounted
Warranty: 1 year
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High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V

3AV5-12/1250-31.5 Indoor High-voltage Vacuum Circuit Breaker

3AV5 series indoor AC high-voltage vacuum circuit breaker is an indoor switching equipment with three-phase AC 50HZ and rated voltage 12KV. There are three kinds, withdrawable type, stationary type and side-mounted type.


3AV5-12 indoor high-voltage vacuum circuit breaker adopts solid sealing insulation technology of ABB and SIEMENS. The vacuum arc extinguishing chamber and other parts of the primary circuit are sealed with epoxy resin material to form high insulation and high mechanical strength pole, which avoids the influence of harsh operating environment on the outer insulation of the primary circuit and realizes complete maintenance-free. Optimized spring operation mechanism, simple structure, stable performance, for industrial and mining enterprises, power plants and substations as electrical equipment control and protection, and suitable for frequent operation places.


3AV5 type side mounted vacuum circuit breaker adopts fixed installation, mainly used for fixed switchgear, such as ring network cabinet, box type substation or various non-standard power supply system. The main loop adopts solid sealing pole, miniaturized operation panel, and saves space in the cabinet.



Technical Parameters:


ItemsUnitDate
Rated voltage

KV

12
Rated impulse withstand voltage75
Rated short-time power frequency withstand voltage (1min)42
Rated frequencyHz50~60
Rated short-circuit breaking currentKA202531.540
Rated currentA

630 1000

1250

630 1000

1250 1600

1250 1600

2000 2500

1600 2000 2500 3150 4000
Rated short-time withstand currentKA202531.540
Rated peak tolerable current506380100
Rated short-circuit making current (peak value)506380100
Secondary circuit power frequency withstand voltage (1min)V2000
Rated operation sequence

O-0.3S-CO-180S-CO

O-180S-CO-180S-CO (at 40KA)

Rated single/back-to-back capacitance bank breaking current

Set breaking current


A630/400 (40KA 800/400)
Rated short-circuit breaking current DC flow percentage≤35%
Opening time (rated voltage)ms20-50
Closing time (rated voltage)ms30-70
Mechanical lifetimes20000
Rated short-circuit breaking current breaking timestimes50 (40KA 30)
Allowable wear accumulate thickness of moving and static contactsmm3
Rated closing operating voltagevAC110/220 DC110/220
Rated opening operating voltagevAC110/220 DC110/220
Rated voltage of energy storage motorvAC110/220 DC110/220
Rated power of energy storage motorw80
Contact opening distancemm11±1
Contact strokemm3.5±1
Contact bounce timems≤2 (40KA ≤3)

Three - phase opening and closing

heterogeneity

ms≤2
Average closing speed *1m/s0.9-1.3
Average closing speed*2m/s0.4-0.8
Main circuit resistanceμΩ

≤50 (630A) ≤45 (1250A)

≤35 (1600-2000A) ≤25 (above 2500A)


Quality High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V for sale
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