Title of Invention

"DEVICE FOR PREVENTING EXPLOSIONS IN ELECTRICAL TRANSFORMERS"

Abstract Device for prevention against explosion of an electrical transformer comprising an enclosure filled with combustible coolant,and a means for decompressing the enclosure of the transformer.The decompression means comprises a rupture element 1 with integrated explosion detector provided with a retention part 4 including first zones which have a reduced thickness in comparison with the rest of the retention part 4 and are cable of tearing without fragmenting when the said element 1 ruptures, and second zones which have reduced thickness in comparison with the rest of the retention part 4 and are capable of folding without tearing when the said element 1 ruptures.The said rupture element 1 is capable of breaking when the pressure inside the enclosure exceeds a predetermined ceiling. The signal from an explosion detector integrated with the rupture disc triggers a cooling system and prevents oxygen from coming into contact with the explosive gases generated by the electric arc in contact with the oil.
Full Text

Documents:


Patent Number 200506
Indian Patent Application Number IN/PCT/2001/0925/KOL
PG Journal Number 07/2007
Publication Date 16-Feb-2007
Grant Date 16-Feb-2007
Date of Filing 07-Sep-2001
Name of Patentee MAGNIER PHILIPPE
Applicant Address 68,RUE DE POISSY,F-78100,SAINT-GERMAIN-EN-LAYE
Inventors:
# Inventor's Name Inventor's Address
1 MAGNIER PHILIPPE 68,RUE DE POISSY,F-78100,SAINT-GERMAIN-EN-LAYE
PCT International Classification Number H01F 27/14, 27/40
PCT International Application Number PCT/FR00/020666
PCT International Filing date 2000-03-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 99/03534 1999-03-22 France