Title:
INSULATING SPACER OF GAS INSULATED SWITCHGEAR FOR THREE PHASES
Document Type and Number:
Japanese Patent JP3232551
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To infer the place of occurrence of partial discharge by arranging circular middle electrodes so that they may be opposed to three-phase buses, that the distance of one of them to its opposite bus may be different from those of other two, and that the they may surround the buses, and connecting them by inductors such that the middle electrodes are constituted in ring form.
SOLUTION: Circular middle electrodes 5a-5c are arranged, such that one of them is different in distance to its opposite bus, in opposition to three-phase buses 100a-100c, within the mold resin 4 of an insulating spacer 1. The ends of these middle electrodes 5a, 5b, and 5c are connected with one another into a ring form by inductors 5 to serve as low-pass filters. Lead wires 6a-6c are drawn out from the middle electrodes 5a-5c through a metallic flange 9, being insulated from the metallic flange 9 by insulators 8. Accordingly, the phase separation of high frequency components accompanying the voltage of three phases applied to buses 100a-100c can be made.
Inventors:
Hirofumi Suzuki
Application Number:
JP2163596A
Publication Date:
November 26, 2001
Filing Date:
January 16, 1996
Export Citation:
Assignee:
Takatake Manufacturing Co., Ltd.
International Classes:
G01R31/20; H02B13/02; (IPC1-7): H02B13/02; G01R31/20
Domestic Patent References:
| JP5043481A | ||||
| JP6055215U |