Magnetic shielding of power supply of electric glass oven

Thumbnail Image

Files

CIRED 2019 - 1320.pdf (772 KB)

Paper number

1320

Working Group Number

Conference name

CIRED 2019

Conference date

3-6 June 2019

Conference location

Madrid, Spain

Peer-reviewed

Yes

Short title

Convener

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.

Table of content

Keywords

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