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Mingde Electrical (Shanghai) Co., Ltd.

Circuit Breaker, Breaker, Vacuum Circuit Breaker manufacturer / supplier in China, offering ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation, Vmd 40.5 Kv -1250A Handcart Vacuum Breaker Embedded Pole Types, Pole Mounted 17.5kv-1250A 50Hz Vs1 Vacuum Circuit Breaker and so on.

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Supplier Homepage Product Circuit Breaker ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation

ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation

Purchase Qty.:
(Pieces)
1-99 100+
FOB Unit Price: US $2,080 US $1,146
Purchase Qty. (Pieces) FOB Unit Price
1-99 US $2,080
100+ US $1,146
Get Latest Price
Production Capacity: 22000PCS/Per Year Circuit Breaker
Transport Package: Wooden Case Circuit Breaker
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: VMV
  • Operation: Manual & Electric Circuit Breaker
  • Arc-extinguishing Medium: Vacuum
  • Structure: Vcb Circuit Breaker
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, Ohsas 180001
  • Rated Current: 630A Circuit Breaker
  • Mechnical Life: 10000times Circuit Breaker
  • Specification: SGS, TUV for electrical breaker
  • HS Code: 8535210000
  • Breaking Capacity: Middle& High Voltage Circuit Breaker
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed & Withdrawalable Circuit Breaker
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Voltage: 17.5kv Circuit Breaker
  • Rated Frequency: 50Hz Circuit Breaker
  • Trademark: Mingde Circuit Breaker
  • Origin: Zhejiang Ningbo Circuit Breaker
Product Description
ISO 9001 Standard 17.5kv-630A Vmv High-voltage Breakers for Power Substation  

Product Overview


1. A brand new series of products, wider use in different fields and environment
2. Mechanical life up to 60,000 times
3. Expandable to smart circuit breaker

 
Operation Mechanism

VMV Modularized Operation Mechanism
VMV Modularized Operation Mechanism (with smart unit)
   Modularized design of the operation mechanism is the highlights of VMV circuit breaker. With opening module and closing module in one part, the independent operation mechanism makes the standardized production and maintenance much easier.

 
Gear Driving System

    We improved VMV circuit breakers' driving system, using the gear driving system instead of the traditional chain wheel driving system. The circuit breaker operation will run more smoothly with a longer mechanical life.
Opening Oil Buffer
   The application of high-performance oil buffer can greatly reduce moving contact's over-swing and rebound during the circuit breakers' opening process. In this way, it avoids the reduction of mechanical life when vacuum interrupter is over-fatigue, resulted from contact's over-swing.


Main Specifications and Technical Parameters 

 
ItemunitData
Rated voltagekV17.5
1 min power frequency withstand voltagekV50
 
Lightning impulse withstand voltagekV95
Rated frequencyHz50
Rated currentA630
Rated short-time withstand currentkA20,25,31.5
Rated peak withstand currentkA50,63,80
Rated short-circuit breaking currentkA20,25,31.5
Rated short-circuit closing currentkA50,63,80
Rated short-circuit durationS4
Contact over-travel mm3.5±0.5
Clearance between open contactsmm9±1/11±1
Average opening speedm/s1.1±0.2
Average closing speedm/s0.6±0.2
Opening time ms35-60
Closing timems20-45
Rated operation sequence O-0.3s-CO-180s-CO(<40kA)/
O-180s-CO-180s-CO(≥40kA)
Mechanical lifecycles10000

External Dimension

ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation

 
VMV2-7.2, 12, 17.5-pole center distance 210mm
 
No.Rated Voltage(kV)Rated current(A)Short-circuit breaking current(kA)h1(mm)h2(mm)h(mm)A(mm)B(mm)
17.2,12,17.5630-125020-31.5260205622438609
27.2,12,17.5630-160020-31.5280275637432598
37.2,121250-160040295310697432598
47.2,12200031.5-40295310697432598

ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation

VMV2-7.2, 12, 17.5-pole center distance 275mm
 
No.Rated Voltage(kV)Rated current(A)Short-circuit breaking current(kA)h1(mm)h2(mm)h(mm)A(mm)B(mm)
17.2,12,17.5630-125020-31.5280275637432598
27.2,121250-160040295310697432598
37.2,121600-250025-40295310697432586
47.2,123150-400031.5-40295310697432586
57.2,123150-400031.5-40295310733432586


Packaging, transportation and storage precautions

(1) Circuit breaker should be in the state of opening and energy storage spring in a state without energy storage when packing. It should be in the state of opening and energy storage spring in a state without energy storage when packing. And it should be fixed on the bottom of the wooden case, should have waterproof measures and complete package labels.
(2) Circuit breakers can't invert and avoid strong vibration, rain, surface damage, and components lost when transportation.
(3) When loading the circuit breaker, we suggest the following tools: crane, forklift and driving. When lifting the circuit breaker, we should not hook on the body or pole of the circuit breaker, but on the lifting hole which has the lifting mark.
(4) When circuit breaker has a long-term storage, it should be in a state of opening and energy storage spring in a state without energy storage and placed in dry ventilated indoor preventing from moisture, vibration control and harmful gas erosion, and regularly checked whether environment meets the requirements.
(5)When first use products after long-term storage, it need to have a power frequency withstand voltage insulation testing.
 
ISO 9001 Standard 17.5kv-630A Vmv High-Voltage Breakers for Power Substation
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