220kV COMBINED TYPE Off-circuit-tap-changing Transfor- mer

Product Application

Wideiy used in city network,petrochemical industry, metallurgy, textile, or the mines or companies where are under the condition of high humidity or with the difficulty in maintenance.

Main Features

1) NO DEVICES LIKE OIL TANK, AND HUMIDITY ABSORBER COULD ASSURE THE OIL TO BE INSULATED FROM AIR AND THE OIL COULD BE USED FOR 20 YEARS CONSECUTIVELY WITHOUT ANY TREATMENT LATER.

2) HIGH QUALIFIED RUBBER USED FOR THE SEALING

3) OIL FILLING IN VACUUM CONDITION

Machine Parts

Name: TRANSFORMER INTERIOR 

Brand: ZHEJIANG DESIGN

Original: CHINA

PRODUCTS IS DESIGNED WITH PCCAD, THE CHARACTERS ARE CONFORMED TO IEC 60076 AND GB 1094, AND PASSED QUALIFICATION ISO 9001.

Main Features

Name: SERIES ENTIRELY SEALED TRANSFORMER
Brand: ZHEJIANG DESIGN
Original: CHINA 
THE TRANSFORMER IS A TRANSFORMER WHOSE INTERIOR IS ISOLATED FROM THE AIR SURROUNDING, SO IT'S OIL CAN NOT ABSORB THE OUTER MOISTURE AND THE OXYGEN SINCE THE CHANGE OF TRANSFORMER'S VOLUME COULD BE FIXED WITH THE FLEXIBILITY OF CORRUGATED.

Machine Parts

Name: WINDING
Brand: HIGH-INTENSITY ENAMELED WIRES 
Original: CHINA 
BUCKET FORM OR CAKE FORM,EVENLY COILED AND INSTALLED.ITS INSULATION STRUCTURE IS REASONABLE,AND IT HAS STRONG ANTI-SHORTCUT CAPACITY.

Main Parts

Name: CORE
Brand: ZHEJIANG DESIGN
Original: CHINA
1) The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with advanced Germany Geoge GmbH automatic shear line with the cut burrs controlled within 0.02mm.
2) The silicon sheet fabrication adopts “no-upper yoke-lapped’ technology and all lapped joints of the silicon sheet are 45 full-miters. this effectively improves no-load performance and reduces noises.

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