SOUND MITIGATION FOR AIR CORE REACTORS

An air core reactor (47) including a plurality of concentric conductor winding packages (44, 46) wherein a force (F+) generated by the interaction of current (+) flowing through one package and a magnetic field (42) generated by the reactor is out of phase (F - ) with a force generated in another pa...

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Bibliographic Details
Main Authors ALVES, SEAN, BEST, FABIAN, SHARP, MICHAEL, LAU, TOM CHIU HUNG, CHAN, WILLIE KIM FUNG, TONG, THONG, WONG, TERRY WAI CHEONG
Format Patent
LanguageEnglish
French
Published 16.01.2014
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
INDUCTANCES
MAGNETS
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SOUND-PRODUCING DEVICES
SYSTEMS FOR STORING ELECTRIC ENERGY
TRANSFORMERS
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Summary:An air core reactor (47) including a plurality of concentric conductor winding packages (44, 46) wherein a force (F+) generated by the interaction of current (+) flowing through one package and a magnetic field (42) generated by the reactor is out of phase (F - ) with a force generated in another package, thereby effectively mitigating audible sound generated by power operation of the reactor. In one embodiment (FIG. 3), the out of phase force may be generated when at least one winding (38c, 38d) of one package (38) is configured to conduct a current (-) that is at least 10 degrees out of phase with a current (+) conducted by another package (40) or other windings (38a, 38b) of the reactor (36).
Bibliography:Application Number: CA20132878337