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Class 200/48R - HIGH-POTENTIAL TYPE


Subclass of Class 200 - Electricity: circuit makers and breakers
Definition: Devices especially adapted for breaking high-voltage circuits.
No. of patents: 106
Last issue date: 05/01/2012


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NumberTitleIssue Date
4339635Isolated phase bus disconnect switch with grounded operating mechanism
A telescoping isolated phase bus disconnect switch includes a cylindrical outer housing at ground potential, a pair of coaxial fixed inner conductors at high potential, and a telescoping coaxial movable inner conductor bridging the two fixed inner conduct...
07/13/1982
4331847Apparatus for selectively connecting and disconnecting two sets of three-phase busbars via isolating switch means
Apparatus for selectively connecting and disconnecting two sets (1, 2) of three-phase busbars via isolating switch means, said sets of busbars being covered by metal cladding (31, 32), and extending in two different directions in a common plane (40) such ...
05/25/1982
4296284Flexible shield for high voltage disconnect switch
A shielding arrangement for preventing the buildup of ice on the contacts of an outdoor high-voltage switch structure. The shield includes one or more flexible members which overlie the contacts and are in the path of the travel of a switch element....
10/20/1981
4288667Telescoping disconnect switch with rail-mounted telescope section
A telescoping high current disconnect switch for isolated phase bus includes a pair of axially spaced cylindrical fixed conductors insulatingly mounted within a cylindrical aluminum housing. An aluminum telescope section is coaxial with the fixed conducto...
09/08/1981
4256934Disconnecting switch arrangement
A disconnecting switch arrangement for a high voltage disconnecting switch equipped with an earthing device for use particularly in a metal clad insulated substation. The arrangement comprising a disconnecting unit, an earthing unit and an actuating unit ...
03/17/1981
4250476Auxiliary switch for indicating the condition of a circuit-interrupting device
An indicator is disclosed for a high voltage circuit interrupter having a stored-energy mechanism for biasing the contacts open. The interrupter has a shunt trip mechanism to open the contacts in response to either circuit conditions or a remote command, and a...
02/10/1981
4243854Quick-break attachment for a pole-top air-break switch
Improvements in a quick-break attachment, for a pole-top air-break switch, wherein said attachment is of the type including a whip engaged in a catch to maintain a protective, anti-arcing shunt across the switch until the latter opens, whereupon the whip ...
01/06/1981
4237520Gas insulated switch-gear apparatus
A gas insulated switch-gear apparatus having first and second base planes is disclosed. Arranged on the first and second base planes are feeder switching apparatus comprising gas filled circuit breakers and first and second gas insulated disconnecting swi...
12/02/1980
4188515Telescoping disconnect switch with low resistance center conductor
An isolated phase bus disconnect switch has a cylindrical aluminum center conductor coaxially disposed within a cylindrical aluminum housing. The center conductor is composed of two fixed axially spaced sections and a coaxial telescoping sleeve assembly w...
02/12/1980
4188516Telescoping disconnect switch with high current contact system
A telescoping disconnect switch for isolated phase bus has a cylindrical movable conductor having a plurality of individual contact assemblies each comprising a contact finger and an axially loaded spring fixedly attached thereto. The contact assemblies a...
02/12/1980
4188514Telescoping disconnect switch with gasketed covered access port
An isolated phase bus disconnect switch has a cylindrical center conductor coaxially disposed in a cylindrical conductive housing having an access port. The edges of the port which are perpendicular to the housing have a conductive gasket of tinned copper...
02/12/1980
4146766Actuating mechanisms for vacuum interrupters
An actuating mechanism for a vacuum interrupter incorporates a pivotable bell crank mechanism and a displacement structure for imparting movement of the bell crank mechanism to a coupling structure which is connectable to a contact stem carrying the movab...
03/27/1979
4142078Compact mounting assembly for electrical switching elements
A mounting assembly for electrical switching elements oppositely mounts together the switching elements in a pair. Each switching element, which may be a high-voltage fuse, a disconnect blade, or the like, has a first and a second support point. A central...
02/27/1979
4109125Contact arrangement for an electric arc-electrode consisting of graphite and a method for the manufacture thereof
A contact arrangement for a graphite electric arc-electrode employs a contact spud composed of a metal having a high melting point and a soldering layer disposed between the contact spud and graphite electrode. The soldering layer contains at least one ca...
08/22/1978
4107486Switch operating mechanisms for high voltage switches
A three-phase, high voltage switch arrangement is operated through a connected drive shaft by a switch operating mechanism that can be either driven by motor power or manually operated. When manual operation is desired, a crank handle is folded out of a s...
08/15/1978
4103120Auxiliary mechanism for imparting rotational energy to electrical components
Disclosed is an auxiliary mechanism for rapidly imparting rotational energy to electrical switch components. An insulator connects an electrical switch component to an output shaft mounted for rotation in the mechanism housing. A lever arm assembly is mou...
07/25/1978
4103121Switch operating mechanism
Main contact and interrupter contact operating rods of opposed current interrupters are sequentially moved by a spring loaded operating mechanism to open the main contacts and interrupting contacts of the interrupter switches. Rotation of an input shaft t...
07/25/1978
4103123Grounding device
A procedure and apparatus for increasing the ease and safety of making grounding connections in electrical distribution systems having access areas including switch and fuse blades removable by hot stick operation. A grounding blade physically interchange...
07/25/1978
4072832Control electrode for high-voltage apparatus
The invention is directed to a control electrode for high-voltage apparatus which alters the electric field in the vicinity of the voltage-carrying parts. The control electrode includes a formed body of a conductive plastic foam material. The control elec...
02/07/1978
4049936Quick-acting movable operating-column tripping device
A quick-acting movable-column tripping device is provided as an optional feature of either circuit-interrupters, supported by upstanding insulating column structures, or, alternatively, in connection with circuit-interrupters having a serially-related dis...
09/20/1977
4049933Electrical shorting device
In an electrical switch for making and breaking electric connection between an energized electric conductor and a de-energizable electric conductor that are separated by an insulator and are controllable through manipulation of a pivotably movable switch ...
09/20/1977
4031346Electrical interrupter switch
An electrical disconnect switch and circuit interrupter has an interrupter with an elongate tubular housing assembly that mounts on a fixed contact structure of the switch and has an internal fixed interrupter contact electrically connected to said fixed ...
06/21/1977
4025741Insert disposed in stand-off insulator and circuit interrupter including same
A cylindrical porcelain insulator having a depressed opening in at least one end thereof is utilized as a support member. An elongated steel stud having a threaded end and an enlarged securing end is disposed in the depressed central opening of the porcel...
05/24/1977
4025742Positive mechanical lock-out device
Sequential operation of a pair of switches in a required sequence of operation is ensured by means of a telescoping arrangement of tubes which are connected to associated ones of switch operating shafts. A positive stop prevents the movement of one telesc...
05/24/1977
4012609Circuit-interrupters using spaced-apart bars for conductor-assemblies
An improved circuit-interrupter is provided using rectangular bars for the power conductor assemblies, and having the material of the bars, and the number and thickness thereof, determine the current-rating capability of the equipment, for example, 1200 a...
03/15/1977
3967163Supporting means for the power conductors in circuit breakers
An improved supporting means for the power conductor assemblies in circuit breakers is provided including one or more pairs of side-by-side post-insulators for insulatingly supporting one or more of the power conductor assemblies of the circuit breaker. A...
06/29/1976
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