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Class 218/4 - Series connected break


Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter in which two or more breakers are connected
No. of patents: 26
Last issue date: 09/15/2009


NumberTitleIssue Date
7589295Electrical switchgear
Electrical switchgear, such as a circuit breaker, must in general provide good dielectric strength in open position in order to avoid discharge. To improve the dielectric strength capacitors are often arranged in parallel between the contacts of the switchgear. For ...
09/15/2009
7262362High voltage device with a particle trap
The high-voltage switching device used in one installation position and has metallic encapsulation (10) a switching gap (4) and a particle trap (1) for holding foreign body particles (2), and is characterized in that in the one installati...
08/28/2007
6946613Gas-insulated switchgear
A gas-insulated switchgear includes a tank filled with an electrically insulating gas, first and second conductors disposed within the tank, a disconnector for disconnecting the first conductor and the second conductor from each other, and a grounding switch for gro...
09/20/2005
6927355Circuit breaker
The invention relates to a circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (6). The movable contact and the me...
08/09/2005
6573469Gas-insulated switchgear device
A gas-insulated switchgear device. A casing is provided with a first connection terminal and a second connection terminal, an interruption unit, and a disconnection unit. The disconnection unit includes a first fixed contact connected to the second connec...
06/03/2003
6498315High-voltage switching device having at least two-series-connected vacuum interrupters, and a method for operation of the high-voltage switching device
A high-voltage switching device is described having at least two series-connected vacuum switching chambers. The vacuum switching chambers, which are disposed in series, are configured differently with regard to their physical size and/or contact configur...
12/24/2002
6258592Electroporation cell with arc prevention/reduction
An electroporation system and method for directing high-voltage currents to a suspension of cells contained in a cuvette. A high-voltage switch controls the coupling of a charge control to a high-voltage capacitor and, additionally, controls the coupling ...
07/10/2001
5629658Methods of arc suppression and circuit breakers with electronic alarmers
Methods of arc suppression connecting a PTC material in parallel with a pair of contacts but in series with a second pair of contacts. The PTC material could be doped-BaTiO3 -ceramics, conductive polymer, or metallic PTC materials. The two pair...
05/13/1997
5484972High-voltage gas sealed switchgear including series connected switches and closing resistor
A high-voltage switching device for gas-insulated switchgear has a gas-filled metal housing, a conducting path in the metal housing and at least two series-connected switching points with movable contact pieces which are actuated by a common drive mounted...
01/16/1996
4570202Gas-insulated switchgear equipment
A plurality of breaking portions forming a vertically-disposed circuit breaker are connected in series and open and close the circuit within a gas-tight sealed enclosure. The enclosure is provided at its both sides with openings for connection of one and ...
02/11/1986
4550234Vacuum circuit breaker with two switching tubes connected in series for each pole
A vacuum circuit breaker (1) having two switching tubes (5) which are electrically connected in series and aligned coaxially. By means of an offset drive unit (toggle lever system 26) two motions that are contrary to one another are produced for the drive...
10/29/1985
4507527Current limiting circuit-breaker having an improved contact arrangement
A current limiting circuit breaker contains a pair of electrical contacts within separate chambers arranged side-by-side and isolated by means of an insulated barrier. The contacts are electrically connected in series such that the arcs formed between the...
03/26/1985
4468716Gas-insulated switchgear
A gas-insulated switchgear apparatus comprises, (a) first and second grounded tanks filled therein with insulating gas, (b) a circuit breaker unit enclosed in the first tank, (c) a disconnecting switch unit connected to an axial extension of the first tank and encl...
08/28/1984
4460937Gas-insulated switching apparatus
A gas-insulated switching apparatus is disclosed which includes a circuit breaker having a breaking section with at least a couple of mutually detachable contacts and a grounded tank containing the breaking section and filled with an insulating gas, the g...
07/17/1984
4434333Circuit breaker device
A circuit breaker having main contacts in parallel with resistive contacts. Upon closing, the resistive contacts close before the main contacts to suppress switching overvoltages. A resistor is positioned between the resistive contacts so that heat may be...
02/28/1984
4315119Tank type gas circuit breaker
A tank type gas circuit breaker comprises a sealed vessel which is filled with an insulating gas, insulating support means whose one end is fixed to the sealed vessel, a bracket which is fixed to the other end of the insulating support means, a linkage wh...
02/09/1982
4293747High-voltage puffer-type compressed-gas circuit-interrupter assemblage
A generally cross-shaped, or "T"-shaped circuit-interrupter assemblage is provided having three outwardly radiating supporting arms, or members, within each of which is disposed a puffer-type compressed-gas circuit-interrupting unit. Common contact-operat...
10/06/1981
4281228Tool for making and breaking load currents
A portable tool for making and breaking high magnitude load currents is provided which is reliable in operation, can be used in applications lacking mechanical switching or cutout apparatus, and provides a secondary, visual assurance to the user when a lo...
07/28/1981
4236054Gas-blast circuit breaker
A gas-blast circuit breaker has a plurality of serially arranged circuit breaking stations per pole and a tubular throughgoing stationary casing of electrically insulating material enclosing the circuit breaking stations. Each circuit breaking station has...
11/25/1980
4223191Upstanding mounting structure for high-voltage three-break live-module circuit-breaker
An improved mounting support construction characterized by an arc-extinguishing puffer-unit at the upper end of each of the slanted arms, or generally-"V"-shaped supporting structure, with an additional third puffer-unit interposed, interconnecting, ...
09/16/1980
4197438Electric switch
An electric switch, for use as a high-voltage circuit breaker, having a plurality of quenching chambers per switch pole, with each of the quenching chambers radially disposed in a common actuator shaft. The quenching chambers disposed in the common actuat...
04/08/1980
4179644Power tool switch including speed control
A double pole, trigger actuated switch employs a bridge contact and a separate contactor for opening and closing both lines from a source of current to an associated power tool. The bridge contact is always closed first and opened last with respect to the...
12/18/1979
4052575Metal-clad gas-type high-power circuit-breaker constructions involving two arc-extinguishing assemblages
An improved metal-clad gas-type high-power circuit-breaker construction is provided involving two upstanding circuit-breaker assemblages electrically interconnected adjacent their upper ends, and connected into the series line transmission circuit, prefer...
10/04/1977
4027123Vacuum circuit breaker comprising series connected vacuum interrupters and capacitive voltage-distribution means
This circuit breaker comprises a plurality of vacuum interrupters electrically connected in series. The voltage distribution across the interrupters is controlled by a plurality of capacitive circuits respectively connected across the interrupters. Each o...
05/31/1977
4024365Compressed-gas multiphase circuit-breaker installation
An improved multiphase compressed-gas circuit-interrupter installation is provided having compact, serviceable and inexpensive operating arrangements with an improved gas-leakage detection arrangement and system for detecting a loss of high-pressure gas i...
05/17/1977
3982088High-voltage electric circuit breaker comprising series-connected vacuum interrupter and fluid blast interrupter
This high voltage circuit breaker comprises a vacuum type interrupter and a fluid-blast type interrupter electrically connected in series and arranged to be opened substantially simultaneously so that concurrent arcing occurs in the two interrupters until...
09/21/1976
 
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