12KV Vacuum Contactor
Product Description
Vacuum contactor is an electrical device used to control load circuits. It uses vacuum arc extinguishing chambers to extinguish arcs and can frequently connect and disconnect normal operating currents. The contactor is mainly composed of a vacuum arc extinguishing chamber and an operating mechanism, which has the advantages of strong arc extinguishing ability, good voltage resistance, high operating frequency, and long service life.
The JCZ5 series high-voltage vacuum contactor is suitable for power distribution systems in metallurgy, mining, petrochemicals, construction and other departments, as well as factories and mining enterprises. It is used to control high-voltage motors, transformers and capacitive loads of 12kV, 7.2kV and below, and is particularly suitable for various frequent operation fields. Small size, light weight, adopting an assembled structure arranged vertically, easy to use and maintain, and easy to form a complete set of F-C circuit equipment.
The Vacuum Contactor complies with GB/T 14808,IEC 60470 and JB/T 7122 standard,the main performance indicators have reached the international level.
Stucture Features
Main circuit
1.The integral frame structure is adopted to ensure the insulation and provide sufficient mechanical strength at the same time.
2.Vacuum switch tube is made by domestic famous manufacturers. Mature technology, reliable quality and good market reputation.
3.The 630A current level adopts double moving end connection of end face and conductive clamp, which makes it more reliable with low resistance and low temperature rise.
4.The conducting bar is beautiful and durable, and the upper end has two modes of horizontal connection or vertical connection, which is convenient for users.
Electromagnetic system
1.The unique built-in large capacity sealed auxiliary switch in similar products greatly improves the reliability and safety of auxiliary switch.
2.It adopts double coil electromagnetic system, and the matching characteristic with action force is better than that of single coil.
3.The operation structure is optimized to reduce the starting power and holding power of the coil, so the temperature rise is low, the service life is long and the reliability is more.
4.The limiting buffer is set at the opening limit position of the movable armature to eliminate the hidden trouble caused by the excessive rebound amplitude of the opening. At the same time, the auxiliary switch head also uses buffer to reduce the action impact force and improve the reliability of the auxiliary switch.
Action structure
1.The flexible support of the rotating shaft, no clamping force and small axial movement improve the action performance and consistency.
2.The reasonable action mechanism ensures the axial movement coaxiality of the vacuum tube moving conducting rod, and improves the performance and reliability of the contactor.
3.The contact pressure of the main contact is enhanced to improve the electrical performance and action characteristics. The index is better than similar products.
4.The mechanical retaining device is self-contained, with reasonable structure and more reliable use.
Detailed Photos
Product Parameters
| Type |
Unit |
JCZ5-7.2 |
JCZ5-12 |
| Rated voltage |
kV |
7.2 |
12 |
| Rated current |
A |
160 |
250 |
400 |
630 |
160 |
250 |
400 |
630 |
| 4s thermal stability current |
A |
160 |
250 |
400 |
630 |
160 |
250 |
400 |
630 |
| Making capacity |
A/100times |
1600 |
2500 |
4000 |
6000 |
1600 |
2500 |
4000 |
6000 |
| Breaking capacity |
A/25times |
1280 |
2000 |
3200 |
5040 |
1280 |
2000 |
3200 |
5040 |
| Rated P.F. withstand voltage |
kV |
28 |
42 |
| Rated lightning impulse withstand voltage(peak) |
kV |
60 |
75 |
| Mechanical life time |
times |
10,00000 |
| Rated operation voltage |
V |
AC/DC 110,220,380 |
| Rated operation frequency |
times/h |
300 |
| Closing time |
ms |
≤80 |
| Opening time |
ms |
≤40 |
| Tri-phase asynchronous time |
ms |
≤2 |
| Clearance between open contacts |
mm |
5.0±0.5 |
6.0±0.5 |
| Over travel |
mm |
1.5±0.5 |
| Each conductive loop resistance |
μΩ |
≤200 |
| |
|
|
Outline Drawing
Environmental Conditions
1. Altitude: up to 2500m
2. Ambient temperature: max +50°C min -35°C
3. Maximum daily average temperature °C 40
4. Wind pressure: ≤700Pa (equals to wind speed 37.5m/s)
5. Earthquake intensity: ≤8 degree (as per terms UBN-97: Zone 1)
6. Max daily temperature variation: ≤25°C
7. Maximum solar radiation: ≤1035 W/m²
8. Isokeraunic level: ≤70
9. Average rainfall annually: ≤1400 mm/a
Company Profile
Zhejiang Volcano Electrical is a professional factory for prodcuing 10-40.5kV electrical equipments for power transmission, including all types of indoor&outdoor vacuum circuit breakers, automatic current recloser, SF6&vacuum load break switch, isolating switch, earthing switch, air&gas insulated switchgear, vacuum interrupters, fuse cutouts and lightning arresters.
The factory is located in Yueqing, the famous town for all types of low and high voltage electrical parts.It occupies square more than 10000m
2, and has developed several international production line. We have made constant efforts to improve product quality and service. To offer best quality with our best service to get a win-win solution is our main principal.
Certifications
Our company has get ISO9001, 14001 and 18001 approved. We have passed many type testing for our prodcuts.
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