Because the operating cycle for the American markets is different from the domestic market

a362 k V circuit breaker that could satisfy the requirement of long operating cycle. This paper introduces the design of the HDA-3B hydraulic operating mechanism of the long operating cycle 362 k V circuit breaker

based on the HDA-3 hydraulic operating mechanism of the domestic 363 k V circuit breaker

through increasing energy storage barrel volume

improving the pressurized system and in the form of sealing structure to improve the design. The test results show that the calculated values can meet the practical project needs

and basically consistent with testing value

the comprehensive technical performance has reached the desired design requirements.