Product Specifications
Product Description
The LW8A-40.5 (W) / T 2000-40 outdoor type SF6 breaker finds its universal range of applications for the three-phases electrical system with alternating current 50Hz and the rated voltage 40.5KV. It is used for controlling and protecting the electrical system and measuring the current transformers.
| No. | Name | Value |
| 1 | Rated voltage(KV) | 40.5 |
| 2 | Rated current(A) | 1600/2000 |
| 3 | Rated insulating level | Power frequency withstand voltage (KV)/1min | 95 |
| Thunder impulse withstand voltage (KV) | 185 |
| 4 | Rated short-circuit breaking current (KV) | 31.5/40 |
| 5 | Rated out-of-phase breaking current (KA) | 7.9/10 |
| 6 | Breaking current of earth fault in different phase(KA) | 27.4/34.8 |
| 7 | Rated breaking current of sigle capacitor bank(A) | 400 |
| 8 | Rated operating sequence | O-0.3S-CO-180S-CO |
| 9 | Rated SF6 gas pressure(Mpa) | 0.55 |
| 10 | Switch-off time(on rated voltage)(ms) | 30 ≤t ≤40 |
| 11 | Switch-on time(on rated voltage)(ms) | 60 ≤t ≤80 |
| 12 | Rated short-circuit switch current(peak)(KA) | 80/100 |
| 13 | Rated short-cirduration time(s) | 4 |
| 14 | Rated short time withstand current (KA) | 31.5/40 |
| 15 | Rated peak value withstand current(KA) | 80/100 |
| 16 | Mechanical life test(time) | 6000 |
| 17 | Cumulative breaking times of rated short-circuit breaking current 31.5KA/40KA(time) | 20/16 |
| 18 | Cumulative breaking times of rated current(time) | 2000 |
| 19 | Annual leakage rate of SF6(%) | ≤0.5 |
| 20 | Water content of SF6(V/V)(PPm) | ≤150 |
| 21 | Outer insulating leakage ratio distance(mm/KV) | ≤25 , ≤31 |
| 22 | Weight of the breaker(kg) | 1000 |
Since its founding in 1986, Huguang Group has been among leading manufacturers of high and low voltage electric products in Liushi, which is known as China's Electric Capital. With 15 shareholding enterprises and more than 300 cooperative enterprises, the company has total assets over RMB 500 million and annual sales more than RMB 1.1 billion.
Huguang is specialized in manufacturing of power transmission and distribution appliances, including power transformer, reactor, insulator, vacuum breaker, circuit breaker, voltage stabilizer, terminal, cable and electric hand tool, etc. Among them, power transformer and reactor series have been recommended to the market of E. E. C. As an ISO9001: 2000 quality system approved company, Huguang is known for its high quality products. All of the products comply with IEC Standard and other international standards.
Through years of its development, Huguang has expanded its business into more than 40 countries. The company attaches great importance to quality guarantee and customer satisfaction. Attributed to our reliable quality and perfect service, the company has won outstanding reputation from our clients all over the world. Huguang will continue to play an active role in the electric industry and to explore new opportunities of business with people all over the world on the principle of equality and mutual benefit.
