24KV Vacuum Circuit Breaker Embedded Poles
Embedded poles designed for 24KV vacuum circuit breakers. These poles provide insulation and support for the vacuum interrupter, ensuring reliable operation and long service life.
Technical Specifications
Product Overview
24KV Embedded Pole Solution
These embedded poles are precision-engineered for 24KV vacuum circuit breakers, providing essential insulation and mechanical support for vacuum interrupters. Constructed from high-quality epoxy resin using advanced vacuum casting technology, these units ensure superior dielectric strength and long-term durability. Designed for demanding medium-voltage power distribution systems, they enhance circuit breaker reliability and operational safety.
Electrical Ratings
Short-Circuit Performance
31.5 KA
Max Breaking Current
80 KA
Max Making Current (Peak)
Withstand Voltage Ratings
- Power-frequency (1min): 79KV
- Lighting impulse (peak): 145KV
- Rated Voltage
- 24 KV
- Rated Current
- 1250A1600A
- Rated Frequency
- 50 Hz
Mechanical Requirements
Contact Specifications
| Parameter | Value |
|---|---|
| Contact Stroke | 13±1 mm |
| Connection Stroke | 4±1 mm |
| Bounce Duration | ≤2 ms |
| Contact Erosion Limit | 3 mm |
Operating Speeds
1.3 m/s
Avg Opening Speed
0.6 m/s
Avg Closing Speed
- Mechanical Life
- 10000 Operations
Durability and Standards
Durability Metrics
- Shelf Life: 20 Years
- Circuit Resistance: ≤20μΩ
- Partial Discharge: ≤5pc
