ZW7 (30) -40.5 outdoor high voltage vacuum circuit breaker is a three-phase AC 50Hz, outdoor voltage switch equipment with rated voltage 40.5kV and below. It can be used as load current, overload current and short circuit current
Use environmental conditions:
A. ambient air temperature: -30 DEG C, ~+40 c;
B. altitude is not more than 1000m;
C. wind pressure is not more than 700Pa (equivalent to wind speed 34m/s);
D. earthquake intensity shall not exceed 8 grade;
E. air pollution level III
- this product is the new product, improve the original products based on our factory to meet the national standards, industry, and has passed the test of all types.
The design of the product - unique, intermediate type, small size, light weight, high strength, beautiful appearance.
- breaker chassis by hot galvanizing processing, the shell is made of stainless steel plate, external components with rust proof aluminum, strong corrosion resistance and oxidation resistance.
Gear box - breaker for waterproof box, in order to prevent the internal electrical control components from the gear box, equipped with a heating device.
In the vacuum interrupter is the main parts of a circuit breaker, in order to better meet the needs of outdoor products, we designed the product vacuum interrupter, it has reliable performance, long service life, open characteristics of breaking capacity.
- this product is equipped with LZZBJ4-35, LZZBJ2-40.5 type external current transformer, each transformer can be equipped with up to four independent coils, change line number, accuracy, according to the requirements of users can make ratio according to need can be selected in the 100/5 ~1600/5 range, the measurement precision of Lord Gao Ke to reach 0.2 and 0.2S, four coil ratio, accuracy can be different.