Negotiable
The date of payment from buyers deliver within days
Zhejiang
Long-term effective
2020-05-24 14:52
224
Company Profile
By certification [File Integrity]
Contact：zjrgzk(Mr.)
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Area：Zhejiang
Address：Zhejiang
| Product History |
The use of a vacuum for switching electrical currents was motivated by the observation that a one-centimeter gap in an X-ray tube could withstand tens of thousands of volts. Although some vacuum switching devices were patented during the 19th century, they were not commercially available. In 1926, a group led by Royal Sorensen at the California Institute of Technology investigated vacuum switching and tested several devices; fundamental aspects of arc interruption in a vacuum were investigated. Sorenson presented the results at an AIEE meeting that year, and predicted the switches' commercial use. In 1927, General Electric purchased the patent rights and began commercial development. The Great Depression and the development of oil-filled switchgear caused the company to reduce development work, and little commercially important work was done on vacuum power switichgear until the 1950s.
| Product Basic Parameters |
TD-40.5/1600-31.5（350）
Main Technical Parameter |
value |
Rated voltage |
40.5kV |
Rated current |
1600/2000A |
Rated frequency |
50Hz |
Rated power frequency withstand voltage (1 min) |
95kV |
Rated lightning impulse withstand voltage |
185kV |
Rated short circuit breaking current |
31.5KA |
Rated short circuit making current(peak value) |
80KA |
Rated withstand current(peak value) |
80KA |
Rated short time withstand current |
31.5kA |
Rated duration of short circuit |
4s |
Rated breaking current of single capacitor bank |
400A |
Breaking operations under rated short circuit breaking current |
30 times |
Mechanical life |
10000 times |
Closing force due to bellows and atmosphere |
200±50N |
Force required to hold contacts opening at full stroke |
320±50N |
Circuit resistance at lowest rated contacts force |
≤20μΩ |
Limiting abrasion of contacts |
3mm |
Weight of movable parts |
≤4.5kg |
Storage life |
20 years |
Mechanical Data Required For The Matched vacuum Switchgear |
Value |
Clearance between opening contacts |
22±1mm |
Average opening speed |
1.7±0.3 m/s |
Average closing speed |
1.0±0.2 m/s |
Rated contacts pressure |
3100±200N |
Contacts bouncing duration at closing operation |
≤3ms |
Synchronism of three phases |
≤2ms |
Contacts re-bouncing clearance at opening operation |
≤3mm |
| Product Features |
1.Environmentally friendly
2.Atmospheric contact contamination is eliminated Oxides and corrosion layers cannot form in the vacuum environment
3.Noise-free and flash-free
4.Various types and ratings are available for circuit breakers, contactors and load break switches.
5.Compact interrupters are accomplished according to the most suitable design on electrode.
| Certified Product |
| FAQ |
1.Q: What is your warranty period?
A: Any quality issue, we promise you to change the new product within 12 months.
2.Q: How to send a inquiry for more information?
A: You can can find our contact information and send us message or email.
3.Q. Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
4.Q. Do you have any MOQ limit?
A: No special MOQ, just price will be different based on quantity
| Aduantage |
| Vacuum Interrupter Applications |
| Company Profile |
| Product Packaging |
Strong package, Safety first.
Inside with foam to support the product, put it in carton or wooden box, fixed it on pallet.
As long as possible to keep the products safe until it arriving customer's warehouse.
Clearly marking label outside of package, customers will be easy to identify their goods.
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