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Title: Transformer current sensor for superconducting magnetic coils

Abstract

The present invention is a current transformer for operating currents larger than 2kA (two kiloamps) that is capable of detecting a millivolt level resistive voltage in the presence of a large inductive voltage. Specifically, the present invention includes substantially cylindrical primary turns arranged to carry a primary current and substantially cylindrical secondary turns arranged coaxially with and only partially within the primary turns, the secondary turns including an active winding and a dummy winding, the active and dummy windings being coaxial, longitudinally separated and arranged to mutually cancel voltages excited by commonly experienced magnetic fields, the active winding but not the dummy winding being arranged within the primary turns.

Inventors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
5512802
Application Number:
ON: DE86013804
Assignee:
Dept. of Energy TIC; EDB-86-145133
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; SUPERCONDUCTING MAGNETS; MONITORING; ELECTRIC POTENTIAL; QUENCHING; SAFETY; TRANSFORMERS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; MAGNETS; SUPERCONDUCTING DEVICES; 420201* - Engineering- Cryogenic Equipment & Devices; 700202 - Fusion Power Plant Technology- Magnet Coils & Fields

Citation Formats

Shen, S.S., and Wilson, C.T. Transformer current sensor for superconducting magnetic coils. United States: N. p., 1985. Web.
Shen, S.S., & Wilson, C.T. Transformer current sensor for superconducting magnetic coils. United States.
Shen, S.S., and Wilson, C.T. Tue . "Transformer current sensor for superconducting magnetic coils". United States. doi:.
@article{osti_5512802,
title = {Transformer current sensor for superconducting magnetic coils},
author = {Shen, S.S. and Wilson, C.T.},
abstractNote = {The present invention is a current transformer for operating currents larger than 2kA (two kiloamps) that is capable of detecting a millivolt level resistive voltage in the presence of a large inductive voltage. Specifically, the present invention includes substantially cylindrical primary turns arranged to carry a primary current and substantially cylindrical secondary turns arranged coaxially with and only partially within the primary turns, the secondary turns including an active winding and a dummy winding, the active and dummy windings being coaxial, longitudinally separated and arranged to mutually cancel voltages excited by commonly experienced magnetic fields, the active winding but not the dummy winding being arranged within the primary turns.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 16 00:00:00 EST 1985},
month = {Tue Apr 16 00:00:00 EST 1985}
}