DC Circuit Breaker 17.5kv- 2500A of Vmd Type
| Price: |
US $ 1080-1500/Piece |
| Trade Terms: |
FOB,CFR,CIF |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T,Paypal,Western Union |
DC circuit breaker 17.5kV- 2500A of Vmd Type
Overview1. The complete specification of VMD series vacuum circuit breaker can meet customers' different needs.
2. VMD adopts the latest embedded poles and low-resistance vacuum interrupter. With main conductive circuit sealed in epoxy resin, the insulation performance will be more stable.
3. VMD employs an accurate gear driving system, instead of the traditional chain wheel driving system.
4. VMD series circuit breaker passed Type Test Report according to GB and IEC standards.
5. VMD series circuit breaker has exported to 26 countries and regions in the world.
Main parameters
| Item | unit | Data |
| Rated voltage | kV | 17.5 |
| 1 min power frequency withstand voltage | kV | 50 |
| Lightning impulse withstand voltage | kV | 95 |
| Rated frequency | Hz | 50 |
Rated current
| A | 2000 |
| Rated short-time withstand current | kA | 25, 31.5 |
| Rated peak withstand current | kA | 63,80 |
| Rated short-circuit breaking current | kA | 25,31.5 |
| Rated short-circuit closing current | kA | 50,63 |
| Rated short-circuit duration | S | 4 |
| Contact over-travel | mm | 3.5±0.5 |
| Clearance between open contacts | mm | 9±1/11±1 |
| Average opening speed | m/s | 1.1±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Opening time | ms | 35-60 |
| Closing time | ms | 20-45 |
| Rated operation sequence |
| O-0.3s-CO-180s-CO(<40kA)/
O-180s-CO-180s-CO(≥40kA) |
| Mechanical life | cycles | 10000,30000 |
External Dimension
VMD2-7.2, 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) |
| 1 | 7.2,12,17.5 | 630-1250 | 20-31.5 | 260 | 205 | 622 | 438 | 609 |
| 2 | 7.2,12,17.5 | 630-1600 | 20-31.5 | 280 | 275 | 637 | 432 | 598 |
| 3 | 7.2,12 | 1250-1600 | 40 | 295 | 310 | 697 | 432 | 598 |
| 4 | 7.2,12 | 2000 | 31.5-40 | 295 | 310 | 697 | 432 | 598 |
VMD2-7.2, 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) |
| 1 | 7.2,12,17.5 | 630-1250 | 20-31.5 | 280 | 275 | 637 | 432 | 598 |
| 2 | 7.2,12 | 1250-1600 | 40 | 295 | 310 | 697 | 432 | 598 |
| 3 | 7.2,12 | 1600-2500 | 25-40 | 295 | 310 | 697 | 432 | 586 |
| 4 | 7.2,12 | 3150-4000 | 31.5-40 | 295 | 310 | 697 | 432 | 586 |
| 5 | 7.2,12 | 3150-4000 | 31.5-40 | 295 | 310 | 733 | 432 | 586 |
Highest temperature: +40ºC
Lowest temperature: -15ºC
b) Environment humidity
Daily mean relative humidity: ≤95%
Monthly mean relative humidity: ≤90%
Daily mean saturated vapor pressure: ≤2.2×10-3 MPa
Monthly mean saturated vapor pressure: ≤1.8×10-3 MPa
c) Altitude: below 1000m area;
d) Earthquake intensity: no more than 8 degree;
e) The product shall be away from weep, fire and explosion, chemical corrosion and strenuous vibration place.Special operating condition
Please consult with manufacturer on manufacturing technology when operating environment is the climatic environment with high altitude, high humidity and great temperature change or other special environment condition.
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.
Certification
| Prod Model: |
VMD |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Rated Voltage: |
17.5kv DC Circuit Breaker |
| Rated Current: |
2500A DC Circuit Breaker |
| 1 Min Power Frequency Withstand Voltage: |
50 Kv DC Circuit Breaker |
| Lightning Impulse Withstand Voltage: |
95 Kv DC Circuit Breaker |
| Rated Frequency: |
50 Hz DC Circuit Breaker |
| Rated Short-Time Withstand Current: |
25/31.5 Ka DC Circuit Breaker |
| Rated Peak Withstand Current: |
63/80 Ka DC Circuit Breaker |
| Rated Short-Circuit Breaking Current: |
25/31.5 Ka DC Circuit Breaker |
| Speed: |
Normal Type Circuit Breaker |
| Poles Number: |
3 |
| Certification: |
ISO9001-2000 |
| Breaking Capacity: |
Middle& High Voltage DC Circuit Breaker |
| Operation: |
Manual & Electric DC Circuit Breaker |
| Arc-extinguishing Medium: |
Vcb DC Circuit Breaker |
| Installation: |
Fixed & Withdrawal DC Circuit Breaker |
| Structure: |
Vcb DC Circuit Breaker |
Rende Power Technology Group
With two wholly-owned holding subsidiaries of Ningbo Mingde Electrical Science&Technology Co., Ltd. And Mingde Electrical(Shanghai) Co., Ltd., Rende Power Technology Group is a high-tech enterprise that specializes in providing high-end circuit breaker technical solutions and core equipment manufacturing for the power industry.
Established in 2007, Ningbo Mingde Electrical Science&Technology Co., Ltd. is a manufacturing base of the company which is primarily responsible for the research and development, manufacturing and logistics of all the products. Situated in Cixi of Ningbo city, south bank of Hangzhou Bay Sea-Crossing Bridge, Ningbo Mingde Electrical Science&Technology Co., Ltd enjoys a beautiful natural scenery and humanistic landscape.
Located in Jiading New City, known as "One hundred meters--a forest, One thousand meters--a lake", Mingde Electrical (Shanghai) Co., Ltd. is seated at Jiading District, the future political economic and cultural center of Shanghai. Mingde Electrical (Shanghai) Co., Ltd. is mainly responsible for the external contact and the sales of all the products and for providing integrated solutions and service for the customers in power industry.
Up to now, the company has established a long-term strategic cooperation relationship with the domestic and international famous enterprises and universities and colleges, such as ABB, Schneider, Siemens, Eton, Baoguang, Xi'an Jiaotong University and Chongqing University and so on. The company is equipped with the product design and manufacturing capacity of 18000 sets of VMD high-voltage vacuum circuit breakers, 22000 sets of VMV smart vacuum circuit breakers and 6000 sets of switchgear assembly.
Leading technology, Stable property, Quality assurance, Energy Conservation and Environmental Protection--the unremitting pursuit of our company
Business Philosophy
To be a professional enterprise in electrical industry, through pragmatic work with a high sense of responsibility to the customers, employees, industry and society!
With the objective of the market demand and the criteria of customer satisfaction, we are committed to provide professional services to the electric systems. We insist on the people-oriented concept and the spirit of innovation in technology, management and marketing. Adhering to the business philosophy of quality service, our company is dedicated to providing safe and reliable products as well as quality service, to create value for employees, shareholders and customers.
Corporate Culture:
To be a professional and qualified server in global power industry
Corporate value:
Harmony, Dedication, Integrity and Win-win cooperation
Market Achievements
Application to some Engineering Projects in domestic and foreign markets
1. VMV circuit breaker applied in Sinopec, Shanghai Branch.
2. VMD3 applied in Rosneft, an oil company in Russia, through cooperation with the local switchgear manufacturer.
3. VMD2 circuit breaker applied in GAZPROM, the largest gas company in Russia.
4. Modularized circuit breaker applied in cement company from Saudi Arab.
5.12kv VS1 circuit breaker applied in residential area, Veken Taizi Bay, Ningbo city.
6. VMD4 applied in Tenaga National Berhad, the largest power grid company in Malaysia.
7. VMV4 modularized circuit breaker applied in Persian Gulf Star Refinery.
8.24kv VS1 circuit breaker delivered and applied in Sibayak Geothermal Plant, Indonesia.
9.17.5kv VMV modularized circuit breaker applied in Jaworzno, a new plant in Poland.
10.17.5kv VS1 circuit breaker applied in TAURON
11.2010, VMD3-24 applied to BURC, FEKE II, a hydropower station in Turkey.
