27.5kV da 55kV Insulator Type 2-pole Vacuum Circuit Breakers (VCBs)

Bayanan

Akwụkwọ ọrụ VCBs (Vacuum Circuit Breakers) nke 2-pole Insulator Type na 27.5kV na 55kV anyị na-akọpụta teknụzụ vacuum interruption maka na ihe dị ka ụdị insulator-type nwere ike, pụtara maka ọtụtụ ọnụ ụgbọala oge ugwu dị ka railway traction networks, industrial power distribution, ma ọ bụ grid substations. Ụdị 2-pole na-enye ike ime ọrụ circuit breaking n'ụfọdụ akụkọ site maka ịghọtaghị phase imbalance, mgbe ụdị insulator-type na-enye ike ime ọrụ n'otu ọhụrụ (-40°C ruo ọhụrụ) na altitude up to 3,000m. Site na 31.5kA short-circuit breaking current, 2500A rated current, ma ọ bụ 3-6 afọ maintenance cycles, ndị VCBs a na-abụkarị IEC 62271-100/GB 1984 standards—na-enye ekwesịnkewa options ( dịka dry air insulation) na easy retrofitting maka seamless integration into existing systems.

Nkà Ọrụ

Meidensha na-akpọta VCBs maka electric railways na China site na 1980s, site na anyị ọṅụnyere na expertise nke anyị na Japan maka power systems maka electric railways including the Shinkansen. Na 2007 ma ọ bụ 2011, Meidensha kọwaa ụdị nwute 55 kV na 27.5 kV insulator type VCBs maka high-speed railways na China. Site na ndị ọrụ a na-egosi, compact na easy to handle, ọtụtụ 800 VCBs na-eme ọrụ ugbua.

• Nke ọma nke ọrụ nke ọma site na 30 times of rated short-circuit current breaking na 10,000 times of mechanical operation

• Designed to operate in various environments for the ambient temperature of -40°C to 40°C and the altitude of up to 3,000 m (up to 3,600 m under special conditions)

• Optional CTs for mounting on the stand, reducing the installation space and costs

• Low-pressure insulating gas (SF6) inside the live circuit compartment. The VCB performance can be maintained even if the pressure decreases to the atmospheric pressure.

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