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THERMAL SECURING OF ELECTRICAL CONTACTS IN POWER TRANSFORMERS

[Category : - ELECTRICITY & LIGHTING]
[Viewed 1964 times]

Executive Summary: In the operation of power transformers of 110kV/MV from substations, these are travelled by faults current results from MV lines demage. Defect electrical contacts are worming when they are travelled from fault currents. In case of high temperatures to achieve over 135 degrees Celsius, electroinsulating oil from the vicinity of electrical faults contacts self-ignition, liberate gases and is action Bucholtz relay. To avoid auto-flammability of electroinsulating oil, the author has invented a security system thermal of electrical contacts defects by pouring fire resistant polyurethane foam, mastic or mortar fire inside a cardboard electroinsulating cylinder, registered at Romanian Patent Office, OSIM, deposit f 2018 0005.

Romanian Patent Office, OSIM, Deposit f 2018 0005

Sell full licence: 2.000.000,00 $

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Full paper:
ICEPTEP 2018 : 20th International Conference on Electric Power Transformer Engineering and Principles, Paris, February, 19-20, 2018
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Securing thermal electrical contacts inside the transformer in cardboard tube with polyurethane foams, mastik or cement ensure avoiding gas release and gas protection working with disconnect electricity feeding at customers.

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ioanrusu (Romania)

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