Title:
非液浸変圧器の絶縁
Document Type and Number:
Japanese Patent JP6882611
Kind Code:
B2
Abstract:
Non-liquid immersed transformers and methods of measuring aging degree of the transformers' insulation are disclosed. The transformers comprise a solid insulation inside the conductive coil and one or more floating electrodes in the solid insulation. At least a part of the conductive coil and the one or more floating electrodes may form one or more capacitive elements, respectively. An electrical parameter, e.g. complex permittivity, of the capacitive element is measured and the aging degree is calculated as a function of the electrical parameter measurement.
Inventors:
Sanchez Lago, Lewis
Roy, Martin Carlos
Murillo, Rafael
Sebrian Les, Lorena
Noges Barrieras, Antonio
Roy, Martin Carlos
Murillo, Rafael
Sebrian Les, Lorena
Noges Barrieras, Antonio
Application Number:
JP2020542147A
Publication Date:
June 02, 2021
Filing Date:
February 14, 2019
Export Citation:
Assignee:
ABB POWER GRIDS SWITZERLAND AG
International Classes:
H01F30/10; H01F27/28; H01F27/30; H01F27/32; H01F41/12
Domestic Patent References:
| JP50067420A | ||||
| JP2215109A | ||||
| JP2054906A |
Attorney, Agent or Firm:
Fukami patent office