First electrical tests on a machine with an AC superconducting stator winding

Conference · Tue Mar 01 04:00:00 EST 1988 · IEEE Trans. Magn.; (United States)

OSTI ID:6474716

Brunet, Y; Tixador, P; Laumond, Y; Sabrie, J L

A three phase superconducting stator winding has been built using a low losses NbTi wire under 50 Hz varying magnetic field and current. It has first been necessary to design an horizontal helium cryostat with fiber-glass composites to avoid the permanent eddy-current losses of the rotating magnetic fields. The liquid helium vessel, containing the armature, is dismountable. The cryostat is 900 mm long and the rotor bore has a diameter of 180 mm. The windings are wounded on five concentric fiber glass cylinders with a thin impregnation of an epoxy film adhesive. The first electrical tests have been performed using a normal iron rotor inside the superconducting stator. No load and permanent tests have been achieved up to a power of 13 kVA. The 18,5 kVA predicted have not been reached because of the present inductor, not yet superconducting.

• Research Organization: CNRS-CRTBT/Lab. d'electrotechnique, BP 166X, 38042 Grenoble-Cedex (FR)
• OSTI ID: 6474716
• Report Number(s): CONF-870901-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 24:2
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALTERNATING CURRENT
CONTROL EQUIPMENT
CRYOSTATS
CURRENTS
ELECTRIC CURRENTS
ELEMENTS
EQUIPMENT
FLUIDS
GASES
HELIUM
MAGNETIC FIELDS
METALS
NIOBIUM
NONMETALS
PERFORMANCE TESTING
RARE GASES
SUPERCONDUCTING COILS
TESTING
THERMOSTATS
TITANIUM
TRANSITION ELEMENTS