Applicable place:(Suitable forplaces with high voltage level)
1.Overhead lines.
2.Industrial.
3.Mining enterprises.
4.Power stations.
5.Substations.
This is a new type of on poleswitchgearin vacuum circuit breaker series products in China.
Advantages
1.It has good performance inshort-circuit makingandbreaking.
2.It is characterized byautomatic re-making,stable operationandlong electric life.
3.Under its normal operating conditions and specified technical parameters, it cansatisfy the protection requirements of systems connectedwith the grid in service.
Environmental Conditions
Ambient temperature:- 50°C~+70°C
Relative humidity: ≤95% (daily average) or ≤90% (monthly average)
Altitude: ≤ 2000m
Rated voltage |
kV |
12 |
24 |
40.5 |
Rated current |
A |
630/800 |
630/800 |
800 |
Rated frequency |
Hz |
50/60 |
50/60 |
50/60 |
1min power frequency withstand voltage |
kV |
42/48 |
65/79 |
70 |
Lightning impulse withstand voltage |
kV |
75/85 |
125/150 |
170 |
Rated short circuit breaking current |
kA |
16 |
20 |
20 |
Rated short circuit making current |
kA |
31.5 |
40 |
40 |
Rated peak withstand current |
kA |
31.5 |
40 |
40 |
Rated short time withstand current, 3s |
kA |
16 |
20 |
20 |
Operations of short-circuit breaking current interruption |
times |
30 |
30 |
30 |
Mechanical life |
times |
30000 |
30000 |
30000 |
Operation sequence |
|
O-0.3s-CO-3s-CO-3s-CO |
Lawrence Electric Co., Ltd. is a high-tech enterprise focusing on power transmission and distribution products, providing customers with one-stop service of power transmission and distribution products.
It mainly produces and sells lightning arrester, insulator, fuse, isolation / load switch, SF6 / vacuum circuit breaker, power supply fittings, optical cable fittings, switch cabinet and other transmission and distribution products. The company has production bases and sales centers in Jiangxi, Zhejiang, Uganda, Tanzania and other places.
Our products have operated safely in the power supply systems of more than 20 countries and regions around the world for more than 10 years. They are also qualified suppliers of China State Grid and China Southern Power Grid. At present, they have gained a good reputation in the field of power system in the world.
We have received high-quality product recommendation letters from power supply companies in Kenya, Uganda, Tanzania, Zambia, Guinea, Ghana, Togo, Mozambique, Nepal, Guyana, Myanmar and other countries and regions.
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OUR VISION: ONE STOP SERVICE FOR THE GLOBAL DISTRIBUTION AND SUBSTATION ELECTRICAL MATERIALS.
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