ZW38-40.5 series overhead ceramic insulator high voltage outdoor circuit breaker
1.vacuum circuit breaker
2. IEC standard
3.Reliable Long service life,
4.Short delivery time
5.high quality ,low price
ZW38-40.5 series overhead ceramic insulator high voltage outdoor circuit breaker is a type of 50HZ three-phase alternating current high voltage switch equipment. It ‘s mainly used in normal operation and short-circuit protection for all kinds of power grid. Attached type CT19-IVB spring operating structure and electromagnet operating structure can manipulate electric opening and closing in a distance, or accumulate energy for manual operation.
Vacuum interrupter is put in the insulator fulfilled with SF6 to protect it from effect of outer circumstances, thus anti-contamination, anti-condensation, and reliable. Each VCB can equip with 6-12pieces of current transformer according to customer’s requirement.
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. It has characteristics of simple structure, small size and easy mounting,.
Ambient condition
1 Ambient temperature: max +40°C min -35°C
2 Relative humidity: daily average relative humidity: ≤90%; monthly average relative humidity≤95%
3 Altitude: plain type ≤1000m; plateau type ≤3000m
4 Wind pressure: ≤700Pa(equals to wind speed 34m/s)
5 Earthquake intensity: ≤8 degree(horizontal acceleration is 0.25g,vertical acceleration is 0.125g )
6 Air contamination degree:IV degree
7 Min nominal creepage distance: 31mm/kv
Order 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 current | A | 2000 | |||
| Rated short-circuit breaking current | kA | 31.5 | |||
| Rated short-circuit making current | kA | 80 | |||
| Rated operations of short-circuit breaking current interruption | times | 20 | |||
| Rated out of phase breaking current | kA | 8 | |||
| Out of phase grounding faulting breaking current | kA | 27.4 | |||
| Rated operating sequence | 0-0.3-CO-180s -CO | ||||
| Rated duration of short-circuit | s | 4 | |||
| Rated short-time withstand current | kA | 31.5 | |||
| Rated peak withstand current | kA | 80 | |||
| Opening time | ms | 3-65 | |||
| Closing time | ms | 40-100 | |||
| Average closing speed | m/s | 1.0±0.35 | |||
| Average opening speed | m/s | 2.0±0.35 | |||
| Contact bouncing duration at closing operation | ms | ≤8 | |||
| Three-pole simultaneity | ms | ≤3 | |||
| Rated voltage fufilled with SF6 | Mpa | (CT attached) 0.02 | (CT attached) 0.2 | ||
| Weight | kg | (without CT) 750 | 1000/1150/1300(6pieces CT/ 9pieces CT/12pieces CT) | ||
| Note:Rated characteristics can be given on requirment | |||||
