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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) APPLICATION No:
2229/MAS/1997A
(22) Date of filing of Application:07/10/1997 (43) Publication Date: 09/06/2006
(54) Title of the invention:
(71) Name of Applicant
POWER BREAKER
(51)International classification:H01H 33/70
(31) Priority Document No.196 41 550.0
(32) Priority Date:09/10/1996.
(33) Name of priority country:GERMAN.
(87) WIPO No. :
(61) Patent of addition to
Application No. :
Filed on:
(62) Divisional to
Application No.:
Filed on:
ABB SCHWEIZ AG
Address of Applicant:
BROWN BOVERI STRASSE 6, 5400
BADEN, SWITZERLAND.,
SWITZERLAND.
(72) Name of the Inventor(s):
Dr. ZEHNDER Lukas,
Dr. KALTENEGGER Kurt,
LOPFE Benedikt,
Dr. MULLER Lorenz,
SEIDEl Manfred.
(57)Abstract
This power breaker has an arcing chamber which is filled with an insulating medium and extends along a central axis
(2). This arcing chamber is provided with a power current path which has two erosion contact arrangements (5, 6)
which are arranged on the central axis (2), are at a constant distance from one another in the axial direction and bound
an arcing zone. The arcing chamber also has a heating area (13), which is connected to the arcing zone, and a bridging
contact which electrically conductively connects the erosion contact arrangements (5, 6) in the connected state. The
bridging contact is arranged centrally in the interior of the erosion contact arrangements (5, 6). An annular gap (36) is
provided between the erosion contact arrangements (5, 6) and opens directly into the heating area (13). In this power
breaker, the flow behavior is significantly improved in the region between the arcing zone and the heating area (13).
The Patent Office Journal 09/06/2006 10769