ZW7-40.5 out door high voltage vacuum circuit breaker
1.vacuum circuit breaker with IEC standard
2.Reliable and maintenance free
3.OEM service
4.Type: Vacuum
ZW7-40.5 series high voltage out door circuit breaker can be used for 50HZ 40. 5kv outdoor high voltage electrical equipment. They are mainly used in controlling and protection of out door power transmission and transformation system of 35kv, also in normal operation and short-circuit protection for all kinds of power grid and frequent operation place.
Attached spring operating structure and electromagnet operating structure can manipulate electric opening and closing in a distance, or accumulate energy for manual operation. The design performance strictly sticks to our national standard GB1984 - 89 for high voltage alternating current vacuum circuit breaker, and meet the requirements of International Electro technical Commission (IEC) IEC-56 for high voltage alternating current vacuum circuit breaker. These series of VCBs are ceramic pillar type. Vacuum interrupter is installed in upper part of ceramic insulator. It has characteristics of well tightness and high temperature endurance, non-combustion and non-exploration, easy mounting, anti-aging and long service life.
Ambient condition
Altitude: up to 2500m Ambient temperature: max +40°C min -35°CWind pressure: ≤700Pa(equals to wind speed 34m/s)Earthquake intensity: ≤8 degreeAir contamination degree:III degreeMax daily temperature variation: ≤25°COrder instruction
Complete model and order quantity of the product
Rated current and rated voltage
Rated short circuit breaking current, operation voltage
Configuration of mutual inductor
Required accessory and quantity
Other requirement please contact with us directly
| Main Technical Data | ||||
| Rated voltage | kv | 40.5 | ||
| Rated frequency | Hz | 50 | ||
| Rated lighting impulse withstand voltage | kv | 185 | ||
| Rated short-time power frequency withstand voltage(dry) | kv | 95 | ||
| Rated short-time power frequency withstand voltage(humid) | kv | 80 | ||
| Rated current | A | 1250 | 1600 | 2000 |
| Rated short-circuit breaking current | kA | 20 | 25 | 31.5 |
| Rated short-circuit making current | kA | 50 | 63 | 80 |
| Rated short-time withstand current | kA | 20 | 25 | 31.5 |
| Rated peak withstand current | kA | 50 | 63 | 80 |
| Rated operations of short-circuit breaking current interruption | times | 20 | ||
| Full opening time | s | 0.1 | ||
| Rated operating sequence | 0-0.3-CO-180s -CO | |||
| Rated duration of short-circuit | s | 4 | ||
| Rated single capacitor bank breaking current | A | 400 | ||
| Contact erosion limit | mm | 3 | ||
| Mechanical life | times | 10000 | ||
| Weight | kg | 1100 | ||
| Note:Rated characteristics can be given on requirment | ||||
