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21. 发明专利

JPH06204059A PRIMARY COIL OF INSTRUMENT TRANSFORMER 失效
公开(公告)号：JPH06204059A
公开(公告)日：1994-07-22
申请号：JP121993
申请日：1993-01-07
申请人： NISSIN ELECTRIC CO LTD
发明人： KAWABUCHI YOSHIKI , NAKAJIMA SOICHI
IPC分类号： H01F27/32 , H01F38/24 , H01F40/04
摘要： PURPOSE:To provide a primary coil of an instrument transformer which is improved in mechanical strength without enlarging the diametrical dimension and besides without losing the insulation property. CONSTITUTION:A multilayer coil 3b is wound in layers through a layer insulating layer 3a being made by winding an insulating sheet 301. The insulating sheet 301 partially has resin-coated areas coated with thermosetting resin 300a and 300b each in half set condition at the surface and the rear. The resin-coated areas at the surface and the rear of the insulating sheet 301 are provided to range in the longitudinal direction of the insulating sheet, being dislocated in the width direction of the insulating sheet so that the fellow resins 300a and 300b do not lie upon each other when having wound the insulating sheet. The resin in each resin-coated region is hardened under a condition that the multilayer coil is wound.

22. 发明专利

JPH01293506A GAS INSULATION TRANSFORMER 失效
公开(公告)号：JPH01293506A
公开(公告)日：1989-11-27
申请号：JP12466088
申请日：1988-05-20
申请人： NISSIN ELECTRIC CO LTD
发明人： OYABU TSUTOMU , ASHIDA JIRO , NAKAJIMA SOICHI
IPC分类号： H01F27/02 , H01F27/26
摘要： PURPOSE:To eliminate the necessity of increasing the thicknesses of the side plates of a container, providing additional reinforcing members or the like and facilitate the weight reduction by using metal members for fixing a transformer main part to the inside of the container also for reinforcing the side plates. CONSTITUTION:A container 1 filled with insulating gas having a predetermined pressure, a transformer 2 which is housed in the container 1 and fixed to the bottom plate 1a of the container 1 with lower core tightening metal members 2a and fixing metal members 3 which are fixed to reinforcing metal members 1e provided near the center parts of the vertical directions of the facing longitudinal side plates 1d of the container 1 at their both ends and hold the upper core tightening metal members 2b of the transformer 2 are provided. For instance, the reinforcing metal members 1e are attached to the facing longitudinal side plates 1d of the container 1 near their center parts of the vertical directions by welding or the like beforehand and the fixing metal members 3 are placed on the reinforcing metal members 1 and their both ends are fixed with bolts 3a and nuts 3b. Then the upper core tightening metal members 2b of the large capacity transformer 2 are fixed to the fixing metal members 3 with bolts 3c and nuts 3d.

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