12KV Medium Voltage Vacuum Contactor
Product description
JCZ5 series is a three-phase AC 50Hz indoor high-voltage switch control equipment, suitable for rated voltage up to and including 12kV voltage grade, rated current 630A power system,to control high-voltage electrical equipment and frequent operation.often with F-C ark. also widely used in high-voltage capacitor reactive power compensation devices.
The contactor complies with GB/T 14808,IEC 60470 and JB/T 7122 standard,the main performance indicators have reached the international level.
Product 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.
Main technical parameter
| Type |
Unit |
JCZ5-630/7.2 |
JCZ5-630/12 |
| 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 |
Product drawing
Ambient condition
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. Air contamination degree: degree
7. Max daily temperature variation: ≤25°C
8. Maximum solar radiation: ≤1035 W/m²
9. Isokeraunic level: ≤70
10. Average rainfall annually: ≤1400 mm/a
Company introduction
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.
Certification Collection
Our company has get ISO9001, 14001 and 18001 approved. We have passed many type testing for our prodcuts.
Contact
Address: No.211, Weishier Road, Economic Development Zone, Yueqing, Zhejiang, China
){kind=link}