公开(公告)号：US20210131876A1

公开(公告)日：2021-05-06

申请号：US16963210

申请日：2018-01-19

Applicant: ABB Power Grids Switzerland AG

Inventor： YiBo ZHANG ,  Delun MENG ,  Jiansheng CHEN ,  Chun LI

IPC: G01K1/024 ,  G01K1/14 ,  G01K3/00 ,  H01F27/08 ,  H01F27/40 ,  G05B15/02 ,  H04Q9/00

Abstract: An apparatus includes a temperature sensor configured to measure a temperature of a dry-type transformer, and the temperature sensor is arranged on or proximate a conductor of the dry-type transformer and is covered by an insulating layer of the conductor. The apparatus further includes a passive wireless communication module configured to transmit the measured temperature to a reader. The temperature of the dry-type transformer can be measured accurately, thereby improving the reliability and safety of the dry-type transformer. Accordingly, temperature measurement for the dry-type transformer can work appropriately in a cost-effective and efficient way.

公开(公告)号：US20210193388A1

公开(公告)日：2021-06-24

申请号：US16754807

申请日：2017-10-09

Applicant: ABB Power Grids Switzerland AG

Inventor： Lejun QI ,  Chau-Hon HO ,  Linnea PETERSSON ,  Jiansheng CHEN

IPC: H01G4/14 ,  C08J7/043 ,  H01G4/20

Abstract: A dielectric film is provided. The dielectric film includes a dielectric polymer substrate having two surfaces opposite to each other and a coating layer formed on at least one of the two surfaces of the dielectric polymer substrate by chemical vapor deposition polymerization and/or irradiation polymerization. A power capacitor includes the dielectric film. A process for preparing the dielectric film is provided.