Quench protection for the 21 MWh ETM coil

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5901442

Abdelsalam, M K; Eyssa, Y M ^[1]

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1. Wisconsin Univ., Madison, WI (United States). Applied Superconductivity Center

This paper presents an emergency internal energy dump procedure and analysis for the 21 MWh Engineering Test Model (ETM) of the full scale SMES. The coil is arranged into four modules which could be connected in parallel using cryogenic switches. The first step in the energy dump procedure is to close all switches. The second step is to expel the liquid helium, in about 20 to 40 s. As the liquid helium level drops, the current transfers inductively from the uncovered top modules to the other modules. The conductor and parallel structure pieces tend to warm up uniformly with tolerant voltage levels.

• OSTI ID: 5901442
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250100 -- Energy Storage-- Magnetic
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ELEMENTS
ENERGY STORAGE
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUIDS
GASES
HELIUM
LIQUIDS
MAGNETIC ENERGY STORAGE
NONMETALS
QUENCHING
RARE GASES
STORAGE
SUPERCONDUCTING COILS
SUPERCONDUCTING MAGNETIC ENERGY STORAGE
SWITCHES