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Life-Tank Outdoor Vacuum Circuit-Breakers 3AF04/3AF05

Life-Tank Outdoor Vacuum Circuit-Breakers 3AF04/3AF05 for Traction Power Substations
Built to meet demanding requirements
       The 3AF04/3AF05 OVCBs for AC traction power supplies consist of three major parts: the pole assembly, the operating mechanism box, and the supporting steel structure. For easy access, the operating mechanism box is situated inside the supporting steel frame. It features the circuit-breaker operating mechanism including motor, release and auxiliary switches and the control cabinet. The actual switching is carried out by a vacuum interrupter mounted inside the weatherproof pole assembly at electrical potential (live). The two pole assemblies rest on a base frame with a common operating shaft.


        The pole assemblies consist of two porcelain insulators that separate the terminal connectors from the steel structure. The upper insulator contains the vacuum interrupter: its upper end is fixed to the upper terminal connector, while its lower end allows free axial movement inside flexible connectors to connect it the lower terminal connector. Underneath the lower insulators covers the switching rod is located, which transmits the switching movement from the operating mechanism box to the vacuum interrupter.

Proven live-tank design
        The design of our AC traction power supply OVCBs 3AF04 and 3AF05 respectively offers all the advantages of the proven 3-pole live-tank OVCB 3AF01. It comprises a minimum number of moving parts and a simple construction, which guarantee outstanding operational reliability and mechanical endurance. All control elements have been placed in the operating mechanism box, which also contains the fully wired control cabinet for local operation of the circuit-breakers.

 Downloads : 

- Outdoor vacuum circuit-breakers and reclosers for medium voltage

Reference : siemens ( siemens\power distribution\Medium Voltage Outdoor Devices)

Downloads 
Life-Tank Outdoor Vacuum Circuit-Breakers 3AF04/3AF05

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hamada i'm hamada rageh electrical power engineer my talent to write articles about electrical engineering and i depend on google books site to write my articles

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