Isolation switch (disconnector), that is, in the sub-position, there is an insulation distance between the contacts that meets the specified requirements and an obvious disconnection mark; in the closed position, it can carry the current under normal circuit conditions and abnormal conditions within a specified time ( such as short-circuit current switching devices.
Normal service conditions
Altitude:≤3000m
Ambient air temperature:-40℃~+40℃
Wind velocity less than 35m/s
The ambient air is not significantly polluted by dust,smoke,corrosive and flammable gases,vapours or salt.
Pollution grade less than Degree III
Earthquake grade less than Degree 8
Type | Rated voltage | Rated current | Rated peak withstand current | Rated short-time current(4s) |
GW4-12
|
12
|
200 |
40 |
16 |
400 |
50 |
20 |
||
630 |
50 |
20 |
||
1000 |
63 |
25 |
||
1250 |
63 |
25 |
||
GW4-40.5 GW4-40.5D
|
40.5
|
400 |
50 |
20 |
630 |
50 |
20 |
||
1000 |
63 |
25 |
||
1250 |
80 |
31.5 |
>> Operational principle / 工作原理
>> Safety protection / 安全防护
>> Product characteristics / 产品特性
>> Product details / 产品细节
>> Why choose us / 为什么选择我们
Isolating switch , generally refers to a high-voltage isolation switch, that is, an isolation switch with a rated voltage of 1kV and above, usually referred to as an isolation switch, which is the most used electrical appliance in high-voltage switching appliances. Its working principle and structure are relatively simple, but due to the large amount of use and high requirements for work reliability, it has a great impact on the design, establishment and safe operation of substations and power plants.
Safety protection // Fine workmanship // Easy to install // Long life // Provide custom
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.
------------------------------------------------------------
企业愿景:成为全球输配电集成供应商
OUR VISION: ONE STOP SERVICE FOR THE GLOBAL DISTRIBUTION AND SUBSTATION ELECTRICAL MATERIALS.
企业价值观:以卓越品质立企业之本,以优质服务得民众之心。
OUR VALUE: SUPERIOR QUALITY BUILDS THE FOUNDATION, EFFICIENT SERVICE WINS CUSTOMER’S CREDIT.
企业精神:团队协作,勇于开拓,持之以恒,共创辉煌。
OUR SPIRIT: FOCUS ON TEAMWORK AND COLLABORATION
BRAVE IN EXPLORATION AND CREATIVITY
NEVER GIVE UP ON ANY COMPANY PERSONNEL
TO CREATE A BRILLIANT TOMORROW TOGETHER
员工行为:倾听,微笑,赞美,坚守承诺,感恩。
CONDUCT CODE: LISTEN, SMILE, PRAISE, APPRECIATE
企业责任:为客户创造价值,为员工创造美好生活,为社会做出应有贡献。
OUR RESPONSIBILITY: MAXIMIZE CUSTOMER’S PROFIT, CREATE GREAT CONDITION FOR STAFF,
MAKE CONTRIBUTIONS TO THE WHOLE WORLD !。