Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils

Milan Polak; Lubomil Jansak; Jozef Kvitkovic; Pavol Usak; Jaakko Paasi; Jorma Lehtonen; Manfred Daumling; Andrea Kasztler; Hans Kirchmayr

doi:10.1109/77.828323

Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils

Milan Polak
, Lubomil Jansak
, Jozef Kvitkovic
, Pavol Usak
, Jaakko Paasi
, Jorma Lehtonen
, Manfred Daumling
, Andrea Kasztler
, Hans Kirchmayr

Not published at VTT

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

1 Citation (Scopus)

Abstract

We studied effects of interturn spacing on AC losses and DC critical currents of single layer R&W coils wound from multifilamentary, untwisted Bi-2223/Ag tape. The losses at currents below the critical current increased proportional to i = (I₀/I_c)ⁿ, where n values were 3.6, 3.3, and 3 for coils with interturn gap 4 mm, 1 mm and 0.1 mm, respectively. At currents below I_c AC losses increased with decreasing interturn gap. We suppose that the observed loss increase is caused by the increase of magnetization losses, while self-field losses remain practically unchanged.

Original language	English
Pages (from-to)	673-676
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	10
Issue number	1
DOIs	https://doi.org/10.1109/77.828323
Publication status	Published - 1 Jan 2000
MoE publication type	A4 Article in a conference publication
Event	The 16th International Conference on Magnet Tehnolopgy - Tallahassee, FL, USA Duration: 26 Sept 1999 → 2 Oct 1999

Access to Document

10.1109/77.828323

Cite this

@article{ee6456ddba424366b3e84fa7ad7f5349,

title = "Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils",

abstract = "We studied effects of interturn spacing on AC losses and DC critical currents of single layer R\&W coils wound from multifilamentary, untwisted Bi-2223/Ag tape. The losses at currents below the critical current increased proportional to i = (I0/Ic)n, where n values were 3.6, 3.3, and 3 for coils with interturn gap 4 mm, 1 mm and 0.1 mm, respectively. At currents below Ic AC losses increased with decreasing interturn gap. We suppose that the observed loss increase is caused by the increase of magnetization losses, while self-field losses remain practically unchanged.",

author = "Milan Polak and Lubomil Jansak and Jozef Kvitkovic and Pavol Usak and Jaakko Paasi and Jorma Lehtonen and Manfred Daumling and Andrea Kasztler and Hans Kirchmayr",

year = "2000",

month = jan,

day = "1",

doi = "10.1109/77.828323",

language = "English",

volume = "10",

pages = "673--676",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

number = "1",

note = "The 16th International Conference on Magnet Tehnolopgy ; Conference date: 26-09-1999 Through 02-10-1999",

}

TY - JOUR

T1 - Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils

AU - Polak, Milan

AU - Jansak, Lubomil

AU - Kvitkovic, Jozef

AU - Usak, Pavol

AU - Paasi, Jaakko

AU - Lehtonen, Jorma

AU - Daumling, Manfred

AU - Kasztler, Andrea

AU - Kirchmayr, Hans

PY - 2000/1/1

Y1 - 2000/1/1

N2 - We studied effects of interturn spacing on AC losses and DC critical currents of single layer R&W coils wound from multifilamentary, untwisted Bi-2223/Ag tape. The losses at currents below the critical current increased proportional to i = (I0/Ic)n, where n values were 3.6, 3.3, and 3 for coils with interturn gap 4 mm, 1 mm and 0.1 mm, respectively. At currents below Ic AC losses increased with decreasing interturn gap. We suppose that the observed loss increase is caused by the increase of magnetization losses, while self-field losses remain practically unchanged.

AB - We studied effects of interturn spacing on AC losses and DC critical currents of single layer R&W coils wound from multifilamentary, untwisted Bi-2223/Ag tape. The losses at currents below the critical current increased proportional to i = (I0/Ic)n, where n values were 3.6, 3.3, and 3 for coils with interturn gap 4 mm, 1 mm and 0.1 mm, respectively. At currents below Ic AC losses increased with decreasing interturn gap. We suppose that the observed loss increase is caused by the increase of magnetization losses, while self-field losses remain practically unchanged.

UR - https://www.scopus.com/pages/publications/0033879383

U2 - 10.1109/77.828323

DO - 10.1109/77.828323

M3 - Article in a proceedings journal

AN - SCOPUS:0033879383

SN - 1051-8223

VL - 10

SP - 673

EP - 676

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 1

T2 - The 16th International Conference on Magnet Tehnolopgy

Y2 - 26 September 1999 through 2 October 1999

ER -

Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils

Abstract

Access to Document

Other files and links

Fingerprint

Cite this