Quench detection method without a central voltage tap by calculating active power

Nozomu Nanato, K. Nakamura

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

In this paper, we present an electric quench detection method without a central voltage tap which may cause the short-circuit of the lead-wires from the voltage taps in the quench detection of a large AC superconducting coil. In this method, an inductive voltage detection coil is used instead of the central voltage tap. The inductive voltage detection coil is electrically insulated from a superconducting coil and therefore the lead-wires do not break down. Through the quench detection tests for a Bi-2223/Ag HTS coil, we show the feasibility of the proposed method for detecting the quench of the large AC superconducting coil.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalCryogenics
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 2004

Fingerprint

taps
coils
Electric potential
electric potential
Lead
Wire
alternating current
wire
Short circuit currents
short circuits
breakdown
causes
Superconducting coils

Keywords

  • AC superconducting coil
  • Inductive voltage detection
  • Quench detection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Quench detection method without a central voltage tap by calculating active power. / Nanato, Nozomu; Nakamura, K.

In: Cryogenics, Vol. 44, No. 1, 01.2004, p. 1-5.

Research output: Contribution to journalArticle

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