平高集团英文网站-九游会ag真人官网

main features of the product:

1. the circuit breaker has a strong breaking ability. the interrupter adopts a composite air pressure structure. the rated breaking current is up to 50 ka (3 s) and the full capacity breaking times are up to more than 20 times, which can effectively break various fault currents.

2. high insulation level. under the condition of partial discharge of  1.5× 252 / √ 3, the partial discharge for 1 min is only 3 pc.

3. good sf6gas tightness. the product adopts the special-shaped sealing groove and has three main sealing lines. the annual air leakage rate can be equal to or less than 0.5% / year, and it is promised that the supplement of sf6 gas will not be required within 10 years.

4. ds / es areof three-station structure, effectively avoiding misoperation.

5. small floor area and low requirements for civil engineering.  the spacing of the product is only 2 m. the current transformer is arranged above the outlet of the circuit breaker without occupying any space. busbars are arranged in the open space on the upper part of gis in layers to minimize the floor space.

6. aluminum shell with extremely low eddy current loss. the weight of the biggest unit is less than 6,000 kg.

7. long mechanical life. when mechanical operations of gcb, ds, es and h-es components are tested 10,000 times in the type test, the product condition is still not deteriorated at all; ensure that the number of consecutive operations is not less than 5,000 times. there is no need to overhaul the product within 20 years after it is put into operation, and the service life of the product is longer than 40 years.