Product Description
This VCB (Vacuum Circuit Breaker) boasts outstanding arc-extinguishing performance, capable of cutting off fault current within an extremely short period of time and safeguarding the safe operation of the power system. It uses vacuum as the insulating and arc-extinguishing medium, with its insulation performance unaffected by environmental factors, ensuring high reliability. The VCB is compact in size, facilitating installation and maintenance, and has a long electrical lifespan and low maintenance requirements, making it suitable for frequent operation scenarios. Moreover, the VCB is environmentally friendly and pollution-free, generating no harmful gases during operation and meeting the modern green energy demands. Its high current-breaking capacity and rapid action characteristics make it outstanding in high-voltage transmission systems, and it is an indispensable efficient protection device in the power system.
| serial number |
name |
unit |
data |
| 1 |
nominal voltage |
KV |
12 |
| 2 |
rated frequency |
Hz |
50 |
| 3 |
Rated insulation level |
Voltage withstand 1min power frequency |
kA |
max/alternate with 42/48 |
| Lightning shock voltage (peak) |
kA |
max/alternate with 75/85 |
| 4 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
40 |
| 5 |
rated current |
A |
630 |
630 |
1250 |
1600 |
1250 |
1600 |
| A |
1250 |
1250 |
2000 |
2500 |
2000 |
2500 |
| |
Rated short-time tolerable current (effective value) |
kA |
20 |
25 |
31.5 |
40 |
| 7 |
Rated peak tolerable current (peak) |
kA |
50 |
63 |
80 |
100 |
| 8 |
Rated short circuit closing current (peak) |
|
50 |
63 |
80 |
100 |
| 9 |
Rated short circuit current duration |
S |
4 |
| 10 |
mechanical life |
next |
20000 |
| 11 |
Power frequency withstand voltage of secondary circuit (1min) |
V |
2000 |
| 12 |
Rated sequence of operation |
minute -1- Or points -t1- Or points |
Company Profile&Our Factory
Guangdong Qiaohui Electric Technology Co.,Ltd has always been adhering to the"quality of survival,innovation and development"business philosophy.Committed to saving powertransformer and high voltage equipment research and development,production and sales.he products included KYN,XGN,GCK,GCS,MNS,GGD,XL-21,XM and energy savingdistribution transformers,special transformers,arc suppression grounding devices,high and low voltage reactors,high-low voltage complete equipment,pre-intalled substations(European box transformer),combined transformers(American box transformer)and photovolaic/wind power generation special box transformers.Provide global solutions forenergy /efficient power systems for global customers.
The company has a self-build factory with area of 30000 square meters,we have various advanced process equipment and quality assurance facilities.Including multi-functionalvacuum casting and impregnation equipment,core processing shear line,foil coil winding machine,CNC punch,plate shearer,bending machine and high standard testing equipmentetc.Perfect detection and test means,strict production according to national standards and ISO9001,CCC quality management system.So as to he quality can be reliably guaranteed.Qiaohui has been focusing on brand effect.Registering and using"qiaohui"trademark.
We do believe that we will be the top one in china in making transformer.Love"qiaohui"love "made in china"!
Our Advantages
Exhibition&Our certificate
Packaging & Shipping
FAQ
1. Are you a manufacturer or a trader?
QIAOHUI is a leading manufacturer specializing in10-40.5kV switchgear which is located in Guangdong Province, China.
2.What are your main markets?
Our main markets are in both domestic and overseas including Southeast Asia, Middle East, South America,Africa, etc.
3.What are your delivery and after-sales service?
Delivery depends on the order quantity, usually it takes 1 month for container orders. There are no problems for us to deliver 20 containers (20 feet or 40 feet) per month. About customer service, we will reply to customer's questions within 24 hours and provide full technical support for our products in time.
4.What is your product warranty?
Firstly, our switchgear and power equipment have quality certificates such as CCC, ISO9001, CE, Rohs, CB,TUV, Kema certificates for their electrical parts and accessories. Secondly, we offer a 1-year warranty, during which we provide free repair, maintenance and technical support. Of course, for some switchgear and
power equipment, their service life is more than 20 years.
5.Do you accept OEM and ODM?
Yes, our R&D team has the latest technology and can develop and produce products according to customers' drawings and brands.
6.What are your payment terms?
A.100% T/T in advance.
B. Irrevocable Demand Letter of Credit for orders over 200,000$.
C. For long-standing business partners, other special terms and conditions can be negotiated.
D. Other than T/T, we also accept Western Union, moneygram, paypal etc.
7.If I want to visit the factory, what should I do?
Our company is located in Foshan City, Guangdong Province, China. The factory is about an hour's drive from Guangzhou Airport. If you need an invitation letter to come to China, we can provide one.
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