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    Magnetic shielding of power supply of electric glass oven

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    CIRED 2019 - 1320.pdf (772Kb)
    Paper number
    1320
    Conference name
    CIRED 2019
    Conference date
    3-6 June 2019
    Conference location
    Madrid, Spain
    Peer-reviewed
    Yes
    Metadata
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    Authors
    canova, aldo, Politecnico di Torino, Italy
    Abstract
    In this paper the magnetic impact of cable supply distribution of an industrial electric oven is presented. Starting from the site survey up to the final mitigation solution, the paper show how to solve the problem and to reach the European Directive constraints regarding magnetic field exposure. The very high currents flowing in the supply cables generate high magnetic which overcome the worker limits. The main magnetic field component is at 50 Hz. The critical area is concentrated at the bottom of the oven which is not usually an area where workers are present. Only some workers dedicated to the maintenance fo the oven have to occasionally stay in the area below the oven. The need to protect such workers has pushed in the direction of finding a mitigation solution. The proposed and installed shielding is based on ferromagnetic material and so it works according the local magnetic flux deviation. The performances of the mitigation solution shows a very good results and the initial average value of 2500 mT is reduced to less then 1000 mT.
    Publisher
    AIM
    Date
    2019-06-03
    Published in
    • CIRED 2019 Conference
    Permanent link to this record
    https://cired-repository.org/handle/20.500.12455/365
    http://dx.doi.org/10.34890/593
    ISSN
    2032-9644
    ISBN
    978-2-9602415-0-1

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