27 August 2017 to 1 September 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

AC loss distribution in two-layer HTS twisted cable

30 Aug 2017, 13:15
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m F2 - High-Tc Wires and Cables Wed-Af-Po3.09

Speaker

Prof. Jun Ogawa (Niigata University)

Description

Many investigators have reported the AC loss characteristics in a HTS multi-layered twisted cable. This experimental report describes the whole AC loss characteristics in HTS cable, and the AC loss distribution in each layer of the cable is based on a numerical method only. For this reason, the HTS cable is a twisted structure and a longitudinal magnetic field is generated. A voltage lead loops attached on each layer cannot accurately detect the loss voltage by the longitudinal magnetic field. In this study, we measured the AC loss distribution from a two-layer HTS twisted cable. To measure the AC loss in each layer, we placed the thermo-couples on each tape face with thermal insulations. We measured the influence of the twist pitch, twist direction and balance of the transport current of the outer and inner layers on AC loss characteristic in the two-layer twisted HTS cable. The inner layer is exposed to the longitudinal magnetic field produced by the outer layer, and the outer layer is exposed to a circumferential direction magnetic field produced by the inner layer. The transport current, amplitude and direction of the magnetic field determine the AC loss characteristics.

Submitters Country Japan

Primary author

Prof. Jun Ogawa (Niigata University)

Co-authors

Prof. Satoshi Fukui (Niigata University) Prof. Tetsuo Oka (Niigata University) Mr Tomoya Ogawa (Niigata University) Mr Mamoru Sugai (Niigata University)

Presentation Materials