End turn insulation for high voltage air core alternators. Final report

Technical Report · Mon Jan 01 04:00:00 EST 1973

OSTI ID:6293166

Problems related to high voltage superconducting alternators are studied. The paper is divided into two main areas which include a short summary of results and a larger section of Appendices. Due to the discovery and development of a modified ring-wound armature configuration, which eliminates the need for highly stressed end turn regions, the direction of the study was altered to include an analysis of the modified ring core geometry. The modified ring-wound armature geometry is constructed by returning the armature conductor bars around the outside of the stator core, rather than around the ends of the machine. A winding constructed in this manner has excellent electric and magnetic field management. The analysis concludes that: (1) machines with magnetic material in the core region have substantially better energy conversion density than machines with non-magnetic cores; and (2) the use of highly conductive material in the outer shield of the machine results in a reduction of the synchronous reactance of the machine, and an increase in the operating losses.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Electric Power Systems Engineering Lab.
• OSTI ID: 6293166
• Report Number(s): PB-288427
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ARMATURES
DESIGN
ELECTRIC GENERATORS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING GENERATORS