STATIC INDUCTION APPARATUS

PROBLEM TO BE SOLVED: To improve insulating strength and through-insulating strength of the lug of a tank near its bending corner by bending and disposing an insulating barrier near the corner of the lug to match the equipotential line. SOLUTION: A core 1, on which a coil 2 is wound, is contained in...

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Bibliographic Details
Main Authors KOJIMA KEIMEI, MIYAO HIROSHI, FURUKAWA SADAO
Format Patent
LanguageEnglish
Published 30.11.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To improve insulating strength and through-insulating strength of the lug of a tank near its bending corner by bending and disposing an insulating barrier near the corner of the lug to match the equipotential line. SOLUTION: A core 1, on which a coil 2 is wound, is contained in a tank 3. The tank 3 is formed into a shape having a lug at a center of a side face, by considering a railway transportation limit and the need for an insulating distance at the center of the winding 2 at a highest voltage. Here, a plurality of insulating barriers 5 are disposed between the winding 2 and the tank 3. In this case, the shape of the barrier 5 is bent to match the shape of an equipotential line 4 even near a point P, and is disposed. The barriers 5 are fixed to the tank 3 at upper and lower ends with spacers 6 and insulating bolts 7. Soft insulators 8 are disposed in a gap between the tank 3 and the barrier 5 near the point P and in a gap between the barriers 5. The length of the barrier 5 disposed at the lug of the tank 3 is extended to substantially the same as the height of the winding 2.
Bibliography:Application Number: JP19980137959