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The 33kV Single Pole Outdoor Circuit Breaker is primarily designed for use in medium voltage overhead power grids, serving to switch load currents, overload currents, and short-circuit currents. It features an automatic reclosing function capable of performing up to three reclosing operations. This product is completely maintenance-free throughout its entire service life; furthermore, its compact size and lightweight design facilitate easy installation.
|
Project |
Numerical Value |
|
Rated Voltage |
35 kV |
|
Rated Current |
630/1250A |
|
Rated Frequency |
50/60Hz |
|
1-Minute Power-Frequency Withstand Voltage |
80/95 kV |
|
Lightning Impulse Withstand Voltage (Peak) |
185 kV |
|
Rated Short-Circuit Breaking Current |
20/25/31.5 kA |
|
Rated Short-Circuit Making Current (Peak) |
80 kA |
|
Rated Peak Withstand Current |
80 kA |
|
4S Short-Duration Withstand Current |
31.5 kA |
|
Rated Operating Cycle |
Open–0.3s–Close/Open–180s–Close/Open–180s–Close/Open–60s–Restore |
|
Rated Short-Circuit Breaking Operations |
30 times |
|
Mechanical Life |
20,000 times |
|
Permanent Magnet Mechanism Control Voltage |
DC220V |
|
Secondary Circuit 1-Minute Power-Frequency Withstand Voltage Test |
2 kV |
|
Parameter Name |
Data |
|
Contact Gap |
18±1 mm |
|
Contact Overtravel |
4±0.5 mm |
|
Opening Speed |
1.4-1.8m/s |
|
Closing Speed |
0.8-1.2m/s |
|
Contact Closing Bounce Time |
<=5 ms |
|
Phase-to-Phase Center Distance |
560±2 mm |
|
Three-Phase Switching Asynchrony |
<=3 ms |
|
Phase-to-Phase Conducting Loop Resistance |
µΩ |
|
Closing Time |
25-45 ms |
|
Opening Time |
20-45 ms |
|
Weight |
100 Kg |
1. Ambient air temperature: -30°C to +60°C;
2. Altitude: Not exceeding 2000 meters;
3. Wind speed: Not exceeding 34 m/s;
4. Vibration or seismic activity originating from outside the switchgear and control equipment is negligible;
5. Pollution degree: Level IV;
6. Storage temperature: -40°C to +85°C.
Address
Jinlu Industrial Zone, Beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province, China
