40.5KV Vacuum interrupter for indoor circuit breaker VTD546D
Inquire NowDescription
The 40.5KV Vacuum Interrupter VTD546D is a pivotal component for indoor circuit breakers, designed to ensure reliable power supply and efficient current interruption during overload or short circuit faults. This advanced vacuum interrupter features a robust arc-extinguishing chamber made from high-quality corrugated ceramic insulation and copper tungsten carbide alloy materials, providing exceptional performance and durability. With a compact design and low maintenance requirements, this device is engineered for a long service life and operates quietly without pollution.
Ideal for a variety of applications, including power transmission and distribution control systems, metallurgy, mining, petroleum, and the chemical industry, the VTD546D is a testament to the innovative engineering of Wuhan Feite Electric, a leading manufacturer in the field. Its design incorporates advanced exhaust technology for optimal functionality, ensuring that it meets the rigorous demands of modern electrical systems.
Specifications
| Attribute | Specification |
|---|---|
| Rated Voltage | 40.5KV |
| Rated Current | 1600A/2000A |
| Rated Frequency | 50/60Hz |
| Short-time Power Frequency Withstand Voltage (1 min) | 95KV |
| Lightning Impulse Withstand Voltage | 185KV |
| Rated Short-circuit Breaking Current | 25/31.5KA |
| Rated Short-circuit Making Current (Peak) | 63/80KA |
| Rated Operations of Short-circuit Breaking Current Interruption | 20 times |
| Rated Duration of Short-circuit | 4s |
| Mechanical Life | 10,000 times |
| Contact Stroke | 22±2 mm |
| Opening Speed (average) | 1.6±0.2m/Sec |
| Closing Speed (average) | 0.75±0.2m/Sec |
| Shelf Life | 20 Years |
| Contact Erosion Limit | 3mm |
| Moving Part Weight (Approx.) | ≤4kg |
| Contact Closing Force due to Bellow and Atmospheric | 250±50N |
| Force Required to Hold Contacts Open at Full Stroke | 330±60N |
Additional Information
- This interrupter is suitable for outdoor circuit breakers rated between 7.2KV to 40.5KV.
- Rated current options range from 630A to 4000A with a rated short circuit open fault current from 12.5KA to 40KA.
- It meets or exceeds the electrical endurance requirements of class E2 for auto reclosing duty per IEC 62271-100 and GB 8738-2003.
- Rated characteristics can be provided upon request.
