You need JavaScript to view this

Fabrication and testing of a superconducting coil: Phase 3 of the Maglev development program

Technical Report:

Abstract

This report documents developmental research on superconducting magnet technology suitable for the levitation and propulsion units of the Canadian Maglev vehicle. The contract work involved the design, fabrication and testing of a racetrack coil fabricated using epoxy-impregnated windings of copper stabilized NbTi wire. The following results were achieved: successful fabrication and testing of a superconducting racetrack magnet with strength {gt} 400,000 A-turns integrated in a support frame; selection and characterization of cryogenic strain gauges; characterization of strain in solenoidal and racetrack superconducting magnets; design, fabrication and testing of high current persistent switches; and operation of superconducting magnets in persistent mode. The racetrack coil reached the design current after the third quench and short sample critical current after the eighth quench. This behavior is essentially identical to that observed with a superconducting solenoid fabricated during a previous phase. The strain measured perpendicular to the straight sides of the racetrack coil was proportional to the square of the energizing current. Persistent switches were fabricated, one type with low resistance (10{sup -2} ohm) and the other with high resistance (1.2 ohm) in their normal states. The low resistance switch could be operated in 1-Tesla fields with stabel characteristics up to about 800A drive  More>>
Authors:
Fife, A A; Lee, S; Tillotson, M [1] 
  1. CTF Systems Inc., Port Coquitlam, BC (Canada)
Publication Date:
Mar 01, 1989
Product Type:
Technical Report
Report Number:
TP-9779E; MICROLOG-90-01752
Reference Number:
CANM-90-005444; EDB-90-095394; ERA-15-035362
Subject:
42 ENGINEERING; SUPERCONDUCTING MAGNETS; FABRICATION; PERFORMANCE TESTING; DESIGN; EPOXIDES; IMPREGNATION; LEVITATION; SWITCHES; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; MAGNETS; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; SUPERCONDUCTING DEVICES; TESTING; 426002* - Engineering- Lasers & Masers- (1990-)
OSTI ID:
6834081
Research Organizations:
Transport Canada, Montreal, PQ (Canada). Transportation Development Centre
Country of Origin:
Canada
Language:
English
Availability:
PC Transport Canada, Library and Information Centre, Place de Ville, Tower C, Ottawa, ON, CAN K1A 0N5; MF CANMET/TID, Energy, Mines and Resources Canada, 555 Booth St., Ottawa, Ont., Canada K1A 0G1.
Submitting Site:
CANM
Size:
Pages: (65 p)
Announcement Date:

Technical Report:

Citation Formats

Fife, A A, Lee, S, and Tillotson, M. Fabrication and testing of a superconducting coil: Phase 3 of the Maglev development program. Canada: N. p., 1989. Web.
Fife, A A, Lee, S, & Tillotson, M. Fabrication and testing of a superconducting coil: Phase 3 of the Maglev development program. Canada.
Fife, A A, Lee, S, and Tillotson, M. 1989. "Fabrication and testing of a superconducting coil: Phase 3 of the Maglev development program." Canada.
@misc{etde_6834081,
title = {Fabrication and testing of a superconducting coil: Phase 3 of the Maglev development program}
author = {Fife, A A, Lee, S, and Tillotson, M}
abstractNote = {This report documents developmental research on superconducting magnet technology suitable for the levitation and propulsion units of the Canadian Maglev vehicle. The contract work involved the design, fabrication and testing of a racetrack coil fabricated using epoxy-impregnated windings of copper stabilized NbTi wire. The following results were achieved: successful fabrication and testing of a superconducting racetrack magnet with strength {gt} 400,000 A-turns integrated in a support frame; selection and characterization of cryogenic strain gauges; characterization of strain in solenoidal and racetrack superconducting magnets; design, fabrication and testing of high current persistent switches; and operation of superconducting magnets in persistent mode. The racetrack coil reached the design current after the third quench and short sample critical current after the eighth quench. This behavior is essentially identical to that observed with a superconducting solenoid fabricated during a previous phase. The strain measured perpendicular to the straight sides of the racetrack coil was proportional to the square of the energizing current. Persistent switches were fabricated, one type with low resistance (10{sup -2} ohm) and the other with high resistance (1.2 ohm) in their normal states. The low resistance switch could be operated in 1-Tesla fields with stabel characteristics up to about 800A drive current and the high resistance switch to 475A.}
place = {Canada}
year = {1989}
month = {Mar}
}