VS1 35KV Switchgear Vacuum Circuit Breakers
It is an indoor switchgear with three-phase AC 50Hz rated voltage of 12KV power system. It is used as protection and control unit for power equipment and industrial and mining enterprises. Applicable to places that require frequent operation at rated operating current, or multiple times to break short-circuit current. The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, and can be used as a fixed installation unit, or can be equipped with a special propulsion mechanism to form a hand truck unit. Features: small size, light weight, suitable for frequent operation Main structure: vacuum interrupter, electromagnetic or spring operating mechanism, bracket and other components.
Description
VS1 35KV Switchgear Vacuum Circuit Breakers
PRODUCT DISCRIPTION
It is an indoor switchgear with three-phase AC 50Hz rated voltage of 12KV power system. It is used as protection and control unit for power equipment and industrial and mining enterprises. Applicable to places that require frequent operation at rated operating current, or multiple times to break short-circuit current.
The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, and can be used as a fixed installation unit, or can be equipped with a special propulsion mechanism to form a hand truck unit.
Features: small size, light weight, suitable for frequent operation
Main structure: vacuum interrupter, electromagnetic or spring operating mechanism, bracket and other components.
Structure and working principle of circuit breakers
There are many manufacturers and models of vacuum circuit breakers. According to usage conditions, it is divided into two types: indoor (ZNx - * *) and outdoor (ZWx - * *). It mainly consists of a frame part, an arc extinguishing chamber part (vacuum bubble), and an operating mechanism part.
The circuit breaker body is composed of a conductive circuit, an insulation system, seals, and a shell. The overall structure is a three-phase common box type. The conductive loop is formed by connecting the incoming and outgoing line conductive poles, the incoming and outgoing line insulation supports, conductive clips, and soft connections to the vacuum arc extinguishing chamber.
The mechanism is electric energy storage, electric opening and closing, and also has manual function. The entire structure is composed of closing springs, energy storage systems, overcurrent releases, opening and closing coils, manual opening and closing systems, auxiliary switches, energy storage indicators, and other components.
working principle
When a vacuum circuit breaker utilizes high fidelity air current to flow through zero, the plasma rapidly diffuses and extinguishes the arc, completing the purpose of cutting off the current.
Action principle
Energy storage process: When the energy storage motor 14 is connected to the power supply, the motor drives the eccentric wheel to rotate, and the roller 10 next to the eccentric wheel drives the crank arm 9 and connecting plate 7 to swing, pushing the energy storage pawl 6 to swing, causing the ratchet 11 to rotate. When the pin on the ratchet 11 is against the plate of the energy storage shaft sleeve 32, the two move together, causing the closing spring 21 hanging on the energy storage shaft sleeve 32 to elongate. The energy storage shaft sleeve 32 is fixed by a positioning pin 13 to maintain the energy storage state. At the same time, the crank arm on the energy storage shaft sleeve 32 pushes the travel switch 5 to cut off the power supply of the energy storage motor 14, and the energy storage pawl is lifted to reliably detach from the ratchet wheel.
Closing operation process: When the mechanism receives the closing signal (the switch is in the disconnected and stored energy state), the iron core of the closing electromagnet 15 is sucked downwards, and the positioning component 13 is pulled to rotate counterclockwise to release the energy storage maintenance. The closing spring 21 drives the energy storage shaft sleeve 32 to rotate counterclockwise, and its cam presses the transmission shaft sleeve 30 to drive the connecting plate 29 and rocker arm 27 to move, causing the rocker arm 27 to buckle onto the half shaft 25, causing the mechanism to be in a closed state. At this point, the interlocking device 28 locks the positioning component, preventing the positioning bull from rotating counterclockwise, achieving the purpose of mechanism linkage and ensuring that the mechanism cannot be closed in the closed position.
Opening operation process: After the circuit breaker is closed, the opening electromagnet receives a signal, the iron core pulls in, and the top rod in the opening release 19 moves upwards, causing the release shaft 16 to rotate, driving the top rod 18 to move upwards, pushing the bending plate 26 and driving the half shaft 25 to rotate counterclockwise.
Half axis 25 and rocker arm 27 are released, and under the action of the opening spring, the circuit breaker completes the opening operation
Environmental requirements
A.The altitude shall not exceed 1000m;
B. the environment temperature, maximum temperature + 40 ℃, the maximum temperature of 15 ℃ (only allow - 30 ℃ storage);
C. Environmental humidity: daily average relative humidity is 95%, and monthly average relative humidity is less than 90%, Daily average saturated vapor pressure acuities were 2.2 * 10 ^ 3 mpa
Daily average saturated vapor pressure acuities were 1.8 * 10 ^ 3 mpa
D. No fire, no dangerous dressing, no serious contamination, no chemical Fuji and no violent shaking.
If there are special conditions of use, please inform the manufacturer when ordering.
The operating mechanism adopts spring energy storage type, advanced and reasonable cushioning device, no rebound of opening, reducing impact and vibration of opening.
PRODUCT PHOTO
The main technical parameters:
NO | Item | Units | Technical parameters | ||
1 | Rated voltage | KV | 12 | ||
2 | Rated short-duration power frequency withstand voltage | 42/48(Interphase, ground/fracture) | |||
3 | Rated lightning impulse withstand voltage | 42/48(Interphase, ground/fracture) | |||
4 | Rated frequency | Hz | 50 | ||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 630 1250 1600 2000 2500 3150 |
6 | Rated short-circuit breaking current | KA | 20/25 | 31.5 | 40 |
7 | Rated short-time withstand voltage | 20/25 | 31.5 | 40 | |
8 | Rated short circuit duration | S | 4 | ||
9 | Rated peak withstand current | KA | 50/63 | 80 | 100 |
10 | Rated short circuit closing current | 50/63 | 80 | 100 | |
11 | Secondary circuit power frequency withstand voltage (1min) |
2000 | |||
12 | Rated single / back to back capacitor group breaking current | A | 630/400(40kA:800/400) | ||
13 | Rated capacitor bank closing current | 12.5 (frequency is not greater than) | |||
14 | Mechanical life | KA | 20000 | ||
15 | Rated current breaking times (electrical life) | 20000 | |||
16 | Rated short circuit current breaking times | times | 50(40KA≤30) | ||
17 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||
18 | Energy storage time | s | ≤10 | ||
19 | Contact opening distance | mm
| 11±1 | ||
20 | Overtravel | 3.5±0.5 | |||
21 | Contact closing bounce time | ms
| ≤2(40KA≤3) | ||
22 | Three-phase split/closed period | ≤2 | |||
23 | Average opening speed (contacts are separated by -8mm) | m/s
| 1.2±0.2 | ||
24 | Main conductive loop resistance | 0.6±0.2 | |||
25 | Main conductive loop resistance | μΩ | ≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more) | ||
26 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||
COMPANY PROFILE
Jiyuan Fengyuan Electrical Equipment Co., Ltd was established in 1984 and is a designated enterprise specializing in the production of high and low voltage switch cabinets by the State Grid Corporation of China.
We have more than 30 years professional experience in high and low voltage complete switchgear cabinet,box type substation,transformer,etc, have CE,ISO, GB,CQC,certificate
Factory directly,Professional manufacturer, All can be customized according to your local requirement
Welcome to inquiry
CERTIFICATE
EXHIBITION
PRODUCTION LINE & WORKSHOP
PACKING & DELIVERY
SERVICE:
We offer free after-sale service for one year
Tips for quote &Placing Order:
The customer shall specify the following items:
♠ Primary circuit scheme and single line system diagram
♠ Secondary circuit schematic diagram, the wires shall be connected according to factory standard if customer has no requirement;
♠ Switchgear arrangement diagram, plan view of electric power substation.
♠ Detailed specification and parameter of electric element of each circuit;
♠ Surface colour of switchgear;
♠ Other requirements.
Trade terms:
1.Payment: 1) 30% in advance, 70% balance against copy of B/L
2.Port of loading: Qingdao port or Lianyungang port
3.Discounts: offered based on order quantities
4.Delivery time: 10-30 days according to order quantities
5.Package: wooden box and wooden pallet and can be csutomized
FAQ
Q1 :I know your quality is perfect but in our market normal quality are more popular what can I do?
A: Please don't worry, we can provide a series of quality of products, you can choose the best one to meet your market,we will try our best to support you. I believe we can provide products meet all your requirements
Q2 :Can I get a sample before the order because I really don't how is your products quality?
A: Of course! We also think sample order is the best way to build trust. We offer free sample service ! Do not hesitate to send inquiry to get the free sample!
Q3 :What's the delivery time? Because we really need them is urgently?
A: 3~7days For sending sample order. .15days for regular order , we will never eat our words.
Q4 :What's the warranty period for your products?
A: For One year warranty.
Q5 : Is OEM/ODM available?
A: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.
Q6 : You are manufacturer or trading company?
A: We are factory, As a 100% professional manufacturer with 20 year's manufacturer experience, we could produce products according to customers' requirements and we could also control the quality of products 100%.
Q7 : Can the price be negotiated?
A: Yes, the price is negotiable. It can be changed according to your quantity or package
Q8 : How about inspection?
A: We have the whole inspection system from raw material to end products include temperature rise test,salt spraying test conductor type test,mechanical life test.
Q9 : What is payment terms?
A: T.T, Paypal,Western Union,Alibaba trade assurance and L/C is acceptable. 30% T/T in advance ,70% balance before shipment.
Q10 : What is the service offered by company?
A: We have the professional engineer team which can design and develop the mold to arrive different customer requirement.
We also have the sales team to offer good service from pre-sale to after-sale.
This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings
Here are our customer examples for your reference
IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US
CONTACT US:
Contact information:
Jiyuan Fengyuan Electrical Equipment Co., Ltd
Sales Department
Contact person:Mr Charles Du
E-mail:fengyuan800@outlook.com
Mobile:+8618639199897(Available for whatsapp,wechat,skype)
Add:Huling industrial zone,jiyuancity,henan province,China
TEL:+86-0391-2180800
FAX:+86-0391-2180818
Hot Tags: vs1 35kv switchgear vacuum circuit breakers, China, manufacturers, suppliers, customized, AC high voltage vacuum circuit breaker, Handcart type vacuum circuit breaker, Handcart circuit breaker, Indoor AC vacuum circuit breaker, economic efficient circuit breaker, Indoor Vacuum Circuit Breaker
