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E-mail
info@volcano-electrical.com
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Phone
+86-577-61668058
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Address
Building 2,59, Weishiliu Road, Economic Development Zone, Chengdong Street, Yueqing, Zhejiang, China
Product Categories
Zhejiang Volcano electrical technology Co., LtdFree·1YRS
Sf6 Circuit Breaker
NegotiableUpdate on October 06
- Model
- Nature of the Manufacturer
- Other
- Product Category
- Vacuum Circuit Breaker
- Place of Origin
- City, Province
Overview
ZW20-12 type outdoor high voltage AC SF6 circuit breaker is designed by our company as a circuit breaker sharing same cabinet.
Product Details
Product description
ZW20 intelligent vacuum breaker is installed overhead at the head of 10kV distribution grid, the head of large branch, the end of main line and T junction of user line.
With automate functions such as telesignaling, telemetry, remote control, telecom , protection , reclose and multiple feeder automation strategies , breakers can detect short circuit / earthing faults quickly and isolate them locally.
Improve the reliability of power distribution grid effectively .
Suitable for 10kV overhead distribution grid/10kV overhead & cable mixed line use neutral point via small resistance grounding/ungrounded /arc suppression coil grounding system.
Technical Parameter
| Item | Unit | Data | |||
| 12kV | 24kV | ||||
| Rated Current | A | 630 | 630 | ||
| Rated Voltage | kV | 12 | 24 | ||
| Rated Insulation Level | 1 min Power FrequencyWithstandVoltage | Dry) | 42/49 | 50/65 | |
| Wet | 34 | 55 | |||
| Lightning Impulse Withstand Voltage (Peak) | 75/85 | 125/145 | |||
| Rated Frequency | Hz | 50 | 63 | ||
| Rated Short-circuit Closing Current (Peak) | kA | 50 | 63 | ||
| Rated Short-time Withstand Voltage (4s) | 20 | 25 | |||
| Rated Peak Withstand Current | 50 | 63 | |||
| Rated Operating Voltage (Controller) | V | AC220 | AC220 | ||
| Auxiliary Circuit Rated Voltage | DC24 | DC24 | |||
| Mechanical Life | times | 3000 | 5000 | ||
| SF6 Rated Air Pressure (20°C) | MPa | ≤0.71 | ≤0.71 | ||
| SF6 Rated Annual Leak Rate | % | ≤0.5 | |||
| Operation Mode | Spring Operation (Manual/Electric) | ||||
| Description | Unit | Using Environment Value | |
| Ambient Air Temperature | Max Temperature | ºC | +50 |
| Min Temperature | -20 | ||
| Max Daily Temperature Difference | K | 30 | |
| Altitude | m | ≤3000 | |
| Solar Radiation Intensity | W/cm2 | 0.1 | |
| Pollution Class | IV | ||
| Icing Thickness | mm | 10 | |
| Humidity | Average Value of Daily Relative Humidity | % | ≤100 |
| Average Value of Monthly Relative Humidity | ≤95 | ||
| Earthquake Tolerance Ability | Degree | ≤8 | |
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