ZW8-12
High Voltage Circuit Breakers
Electric Type
High-Speed Circuit Breaker
Vacuum
Fixed
ACB
1
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
ISO9001-2000, CCC
Bdn
Zhe Jiang
3
10000
10
630
Casting Insulation
BDN
Wooden Case
medium
China
85353010
Product Description
Outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in12kV,50/60Hz power system. Its applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network.
Altitude:≤2000mm;
Ambient air temperature:-40C-+45ºC;
Wind speed: 34m/s;
Earthquake intensity:8degree;
Relative humidity: monthly average 90%, daily average 95%;
Ice thickNess: 10mm;
Pollution degree: IV;
There will be have dew under the condition of high temperature low down hastily.
| Name | Unit | Data | |||
| 16kA | 20kA | 25kA | |||
| Rated voltage | kV | 10 | |||
| Max. operation voltage | kV | 12 | |||
| Rated current | A | 630/1250 | |||
| Rated short-circuit breaking current | kA | 16 | 20 | 25 | |
| Rated short-circuit making current | kA | 40 | 50 | 63 | |
| Rated peak withstand current | kA | 40 | 50 | 63 | |
| Rated short-time withstand current | kA | 16 | 20 | 25 | |
| Rated Insulate level | 1min P.F withstand voltage | kV | 42/48 | ||
| Lightning impulse withstand voltage(peak) | kV | 75 | |||
| Rated operating sequence | O-0.3s-CO-180s-CO | ||||
| Mechanical life | times | 10000 | |||
| Rated short-circuit breaking current breaking times | times | 30 | |||
| Rated Operating Setup Closing Voltage | V | AC220 DC220,100 | |||
| Rated Operating Setup Opening Voltage | V | AC220 DC220,100 | |||
| Contact Stroke | mm | 11±1 | |||
| Contact Over travel (Contact Spring Constringent Length) | mm | 3 | |||
| Out Of Simultaneity Of Contact Closing And Opening | ms | ≤2 | |||
| Contact Closing Bounce Time | ms | ≤2 | |||
| Average opening Speed | m/s | 1.0±0.2 | |||
| Average Closing Speed | m/s | 0.7±0.15 | |||
| Opening Time | The Highest Operating Voltage | s | 0.015-0.05 | ||
| The Lowest Operating Voltage | s | 0.03-0.06 | |||
| Contact Closing Time | s | 0.025-0.05 | |||
| Current by Phase Circuit Resistance | μΩ | ≤120(≤200) | |||
| Contact erosion limit | mm | 3 | |||
