High quality ZW7 Outdoor High Voltage AC VCB is offered by China manufacturer Comewill. Its design performance complies with the national standard GB1984-89 "AC High-Voltage Circuit Breakers" and meets the requirements of the International Electric technical Commission (IEC) standard IEC-56 "AC High-Voltage Circuit Breakers".
This series of circuit breakers is mainly used for control and protection in outdoor 35KV power transmission and transformation systems. ZW7 Outdoor High Voltage AC VCB is also applicable to normal operation and short-circuit protection of urban and rural power grids, as well as industrial and mining enterprises.
Adopting a pillar-type porcelain insulator overall structure, the upper insulator houses the vacuum interrupter while the lower part serves as a pillar porcelain insulator. The product is suitable for frequent operations and boasts advantages including reliable sealing, anti-aging properties, high pressure resistance, non-combustibility, non-explosiveness, long service life, and easy installation and maintenance.
1. The working temperature can withstand temperatures ranging from -40 ℃ to+40 ℃, and the performance is stable regardless of whether it is extremely cold or hot.
2. The highest altitude can reach 1000 meters, and even if the air pressure is low, it can operate reliably without losing the chain.
3. ZW7 Outdoor High Voltage AC VCB has good wind resistance and can withstand wind speeds of up to 10 kilometers per hour; If the model has a rated voltage of 132/230kV, a minimum wind speed of 3.2 kilometers per hour is required to meet the requirements.
4. The earthquake resistance is very awesome, and the intensity of a magnitude 8 earthquake can be carried. It is also OK to use it in places with poor geological conditions.
5. There is a standard for creepage distance, which is at least 31 millimeters per kilovolt. Even if the environment is humid or polluted, it can effectively prevent flashover faults.
6. ZW7 Outdoor High Voltage AC VCB has strong resistance to air pollution and is specifically designed for Class IV polluted environments. It can be used in complex industrial areas or outdoor environments.
1.The temperature ranges from -40 ℃ to+40 ℃, and we are not afraid of extreme cold or heat;
2.An altitude of no more than 1000 meters is sufficient, and a slightly low-pressure environment will not affect it at all;
3.The maximum wind capacity is 10 kilometers per hour, and the 132/230kV model must meet a minimum wind speed of 3.2 kilometers per hour to achieve optimal performance;
4.Can withstand earthquakes of magnitude 8, and can be used with peace of mind in earthquake prone areas;
5.At least 31 millimeters of creepage distance per kilovolt, ensuring electrical safety;
6.Specially designed for Class IV polluted environments, ZW7 Outdoor High Voltage AC VCB can be used in complex industrial areas and places with severe outdoor pollution.
| NO | Item | Unit | Value | ||
| 1 | Rated voltage | KV | 40.5 | ||
| 2 | Rated insulation level | Power frequency withstand voltage | Dry test | 95 | |
| Wet test | 80 | ||||
| Lightning impulse withstand voltage (peak) | 185 | ||||
| 3 | Rated current | A | 1250,1600,2000 | ||
| 4 | Rated short-circuit breaking current | KA | 20,25,31.5 | ||
| 5 | Rated operation sequence |
|
0-0.3s-combination-180s-combination | ||
| 6 | Rated short circuit current breaking times | times | 12 | ||
| 7 | Rated short circuit closing current (peak) | KA | 50,63,80 | ||
| 8 | Rated peak withstand current | ||||
| 9 | Rated short-time withstand current | KA | 20,25,31.5 | ||
| 10 | Rated short circuit continuous current | S | 4 | ||
| 11 | Average opening speed | m/s | 1.5±0.2 | ||
| 12 | Average closing speed | 0.7±0.2 | |||
| 13 | Contact closing bounce time | s | ≤2 | ||
| 14 | Three-phase combined (minute) gate synchronous time difference | ≤2 | |||
| 15 | Closing time | ≤150 | |||
| 16 | Opening time | ≤60 | |||
| 17 | Mechanical life | times | 10000 | ||
| 18 | Rated operating voltage and auxiliary circuit rated voltage | V | DC220,110,24 | ||
| AC220,110,24 | |||||
| 19 | DC resistance per phase circuit (without transformer) | μΩ | ≤100 | ||
| 20 | Dynamic and static contacts allow wear thickness | mm | 3 | ||
| 21 | weight | kg | 800 | ||
Address
No.777 Wanweng Road, Wengyang Sub-district, Yueqing City, Wenzhou City, Zhejiang Province, China
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