Power transformer with superconducting windings

Conference · Mon Nov 01 04:00:00 EST 1993 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6775512

Hoernfeldt, S; Albertsson, O ^[1]; Bonmann, D ^[2]; Koenig, F ^[3]

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1. ABB Corp. Research, Vaesteraas (Sweden)
2. ABB Transformatoren GmbH, Mannheim (Germany)
3. ABB Corp. Research, Zuerich (Switzerland). Oerlikon Works

The authors have designed, constructed and tested a 330 kVA power transformer with superconducting windings. A niobium-titanium based superconducting wire optimized for AC applications was used in die windings. The transformer worked according to its design at rated power. The total heat input to the liquid helium bath at this power was 9.4 Watts, of which the AC losses dissipated in the windings were about one Watt per winding. The low voltage feedthroughs which had to carry 830 A[sub rms] at rated power worked adequately. The transformer revealed an apparent current limiting effect. This property can be utilized to limit currents in a network for time periods 10-50 ms. A quench protection device was designed and incorporated in the test circuit.

• OSTI ID: 6775512
• Report Number(s): CONF-930416--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 29:6
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
AC SYSTEMS
DESIGN
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
PERFORMANCE
PERFORMANCE TESTING
POWER SYSTEMS
SUPERCONDUCTORS
TESTING
TRANSFORMERS