Vb4 Series Indoor AC Medium-Voltage Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Insert
• Structure: MCCB
• Model NO.: VB4
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection
• Certification: VDE, ISO9001-2000
• Transport Package: Wooden Case
• Origin: Zhejiang, China
• HS Code: 85372090
• Production Capacity: 50000

Product Description

Overview

 
VS1 40.5 indoor high voltage vacuum circuit breaker is a new developed product JiaJi electric co., LTD., mainly for the rated voltage 40.5 kV, three-phase ac 50 hz, power system for industrial and mining enterprises, power plants and transformer substation protection and control, especially suitable for frequent operation. Conformity with GB11022 "high voltage switch equipment and control equipment standards of common technical requirements, GB1984 ac high voltage circuit breaker and IEC56 high voltage circuit breaker and other standards.
 

Service Condition

Ambient temperature: not higher than +40 °C, not less than -10°C (at -30 °C to allow storage and transportation).
Altitude: not exceed 1000m.
Relative humidity: daily average of not more than 95%,saturated vapor pressure on the average of not more than 2.2 × 10-3MPa, On average not more than 1.8 × 10-3MPa.
Earthquake intensity: not more than eight.
No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
 

Technical Parameters

Item	Description		Unit	Data
1	Rated voltage		KV	12
2	Max. voltage		KV	12
3	Rated current		A	1250/1600/2000/2500/3150
4	Rated break current on shorting		KA	31.5/40/50
5	Rated short circuit making current		KA	80/100/125
6	Rated peak withstand current		KA	80/100/125
7	4S Rated withstand current		KA	31.5/40/50
8	Rated insulation level	Power frequency voltage(when losing a circuit)	KV	Dreaker 48
		Impulse withstand voltage(when losing a circuit)		Dreaker 84
9	Rated operating sequence			OC-0.3s-CO-180S-CO
10	Mechanical life		Times	10000
11	Open circuit times of rated short dropout current		Times	50
12	Rated close brake voltage of operating machnie		V	110,220
13	Rated break brake voltage of operating machnie		V	110,220
14	Clearance between open contacts		mm	11±1
15	Exceed range(the compress length of contact sping)		mm	4±0.5
16	Different period of three-phase break and close break		ms	≤2
17	The jump time of contact close break		ms	≤2
18	Average break speed		m/s	0.9~1.2
19	Average closing speed		m/s	0.6~1.2
20	Opening time	Ubder max.operating voltage	S	≤0.05
		Under min.operating voltage		≤0.08
21	Closing time		s	≤0.1
22	Resistance of each phase main loop		μΩ	≤40
23	Contacts limit ersion		mm	3

Packaging & Shipping

1.Compact type
      This type of devices install all electrical components in the cabinet that required, cabinet made of galvanized steel or stainless steel, the voltage is 3 5kV and below, capacitance below 4000kvar will use such structure. This type of structure is orderly, the installation and the maintenance are convenient, the occupied area is small, and the structure is suitable for the interior installation of a new power transformer substation. 

2 .  Outdoor type
      This install type with a fence around the equipment enclosure ,occupy an area of slightly larger, but the maintenance is very convenient, for in indoor and outdoor use, especially suitable for old power transformer reforming. 

 

About Us

Founded in 1996, with a registered capital of 10 million USD, Zhejiang Farady Electric enjoys about 20 years' experience in MV transmission and distribution electrical equipment manufacture.
We are National Hi-tech enterprise, National Spark plan Program,State Hi-tech enterprise, State Innovation R&D center, Patent demonstrate company.
Farady is located in Liushi of Yueqing, Zhejiang,China,main products include: Transformer/RMU/switchgear/AVR/ACR and MV indoor and outdoor switch. All the products of ours have passed the national and international laboratory type test, Farady Electric was qualified supplier of China State Grid and China southern Grid.
With ISO9001/14001/18001, we are strike for create value for our partner and customer.
There is more than 20 distributors and agents worldwide already trust us and distribute Farady product there, we are not only export product, but also provide whole technology solution to help partner to establish local factory in our business line.
Today, boasting the value of products specialization, brand management, and business globalization, with the sprits of pragmatism, innovation, efficiency, and responsibility, Farady Company is dedicated to become the top name in the international business from china, and contributes its share to the transformation from the Made in China into the Invented in China.
WE COMMITTED TO PROVIDE A BETTER POWER.

 

Our Advantages

    The traditional way of reactive power compensation is changing the quantity of capacitors to adjust output reactive power, change method is usually switch or contactor, will result in following hazards:
1. The conventional reactive power compensation method has a large compensation      capacity and the adjustment is not flexible, it will lead to the compensation is not    suitable , often appear over and not enough.
2. The capacitor switching can cause over-voltage and inrush current, and it will seriously   affect and reduce the service life of the switch. 
3. When the capacitor is switched on, as the capacitor will charged and discharged,       when it need to switch on again, which affects the speed of the switching..
       According to the above problems, our company developed the FLYK type reactive power compensation device, has the following advantages:
(1). Energy conservation: Farady voltage regulating type capacitors will change the output reactive power by regulating voltage on capacitors, so that the reactive power can be adjusted smoothly. Comparing with other method, it can ensure the capacitors in best condition, the energy saving effect is much better 
(2). Low cost:If the old power transformer substation need to reform, only need to add a voltage regulator between the circuit breaker and capacitors, the original circuit breakers, reactors, capacitors can be reuse, greatly reduce the cost of transformation
(3). Maintance Free:When traditional circuit breaker and contactor switching, switching devices and capacitors often damaged because of the above problems, result in high maintenance costs, using Farady devices, automatic control reactive power output, there is no potential risks of other equipments, greatly reducing maintenance and staff costs in power transformer substation 
(4) Quality Assurances
We have a strictly quality control process from the raw material to finished products. Advanced testing lab to make sure products quality and improve our creative ability. Quality and Safety is the soul of our products.
(5) Excellent Services  
Many years of manufacturing experience and rich export business help us to establish a well-trained sales service team for all customers.
(6) Fast Deliveries
Strong manufacture capacity to satisfy urgent leading time. It is around 15-25 working days after we receive the payment. It varies according to the different products and quantity.
(7) OEM ODM and MOQ
Strong R&D team for quick new products' development, we welcome OEM, ODM and customize request order. Whether selecting a current product from our catalog or seeking engineering assistance for your application. You can tell us about your sourcing requirements 
Normally our MOQ is 100pcs per models. We also produce OEM and ODM as you requirement. We are developing worldwide agent.

FAQ

1.Why choice us Farady?
After compare quality,delivery and price you will find out answer
2. Is that possible to be one of distributor of Farady in my country?
Yes,once you action is fast enough 
3,More question......
Feel free to contact you,you will get immediately reply
 

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