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ZVMB Vacuum On-Load Tap-Changer
 
     
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Main Technical Data
      The service life of transformer can be 40 years or longer right now. Tap changer as the important component of the on load regulating transformer, less maintenance or maintenance free is decisive within so such long operating time. Our ZVMB vacuum on-load tap-changer can fully meet to the requirement.
      ZVMB vacuum on-load tap-changer needs less maintenance and has a long service life: the electrical life is maintenance free for 300,000 operations, the mechanical life can reach to 1,500,000 operations. The application of ZVMB tap changer is wide, it can not only be used to the whole new design of transformer, but also can be used to the vacuum reform of ZM, ZMB and ZMD OLTC.
      ZVMB OLTC applies to the power transformer or industrial transformer with rated voltage35Kv 66kV 、 110kV 、 150kV 、 220kV, max. rated through current three phase 300A, 500A, 600A, single phase 300A, 500A, 600A, 800A, 1200A, 1500A and the frequency is 50Hz or 60Huz to carry out the regulate under the load. Three phase on-load tap-changer is applicable to the three phase Y connection neutral point, single on-load tap-changer is applicable to the transformer with any selectable connection.
 
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