Superconducting generator cooling system simulation

✍ Scribed by P.W. Eckels; J. Buttyan; J.H. Parker Jr.; A. Patterson

• Book ID: 103050493
• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 429 KB
• Volume: 25
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(85)90031-1

✦ Synopsis

Rotating tests have been performed to evaluate continuous liquid helium transfer and the cryogenic environment established in a test rotor. The testing was related to high speed alternator development programmes and the rotating Dewar was designed to simulate a self-pumping liquid helium cooling system for superconducting rotors. Stable pumping to < 0.6 atm* and stable helium level regulation were achieved at several different levels. The established pool was, within the limitations of steady state heat transfer, isothermal and there was no evidence of a warm bore condition. Within the rotating Dewar, heat transfer devices, level gauges and other instrumentation have been tested using onboard microprocessors to log, digitize and then transmit the data from the rotor. All of the cooling system functions required by large synchronous alternators were observed to be present and stable.