Matches 1 - 50 out of 53 1 2 >
Match Document Document Title
7544908 Circuit breaker cradle with an interlock system and a method of using the same  
A cradle and a method for adapting a circuit breaker for mounting in a switchgear cabinet having a bus bar system. The cradle includes a frame to which a racking apparatus and a locking apparatus...
7141747 Switching apparatus having a withdrawable-part rack and a lockable power circuit breaker  
A power circuit breaker is intended to be effectively locked in a simple manner in a withdrawable-part rack. For this purpose, a locking device is provided having a first component, which is fixed...
7075021 Multiple-hole terminal lug, bussing assembly and electrical switching apparatus including the same  
A multiple-hole terminal lug is for a circuit breaker including a load terminal and a conductive terminal extension coupled thereto. The multiple-hole terminal lug includes a mounting portion and a...
7027293 Breaker distribution module  
A breaker distribution module is disclosed. The breaker distribution module essentially includes an insulation rod, a plurality of output terminals, a plurality of input busbars and a plurality of...
6727442 Medium voltage motor control center load discharge device  
A medium voltage controller for electrical equipment, such as motors, transformers, reactors, and capacitors, having a load discharge device. The load discharge device is compact and provides fast...
6696654 Design system of secondary isolating contacts in circuit breakers  
A novel unipolar design of Secondary Isolating Contacts for Circuit Breakers which provides flexibility to build schematic logistics by exploiting programmability of the design and which is...
6590170 Portable Latch  
A latch kit comprising a member with at least one hook end, a tension member, and a hook plate. The hook plate is connected to the member by a tension member. The kit is intended to be used in...
6459054 Adjustable secondary contact assemblies for circuit breakers  
An adjustable circuit breaker portion of a multiple contact secondary contact assembly for mating with spaced, non-adjustable contact terminals of a circuit breaker enclosure, which includes a...
6448519 Contact system arrangement for plug-in circuit breakers and base  
A plug-in contact system for a plug-in type circuit breaker is disclosed. The movable contacts are easily engaged within the circuit breaker by the design of the contact support which includes a...
6433998 Switchgear  
A switchgear comprising a cable compartment, a bus conductor compartment for housing bus conductors arranged at the upper portion of a cable compartment with their back faces in alignment and an...
6172866 Truck-mounted breakers intended for high-voltage lines and a method in connection to such lines  
A truck mounted breaker for high voltage lines. The breaker is a kind in which a linear displaceable contact device, including a plurality of units, coacts with a stationary countercontact device...
5929410 Terminal structure for vacuum circuit breaker  
A terminal structure of a vacuum circuit breaker is capable of effectively radiating heat when conducting electricity. The terminal structure includes a flat terminal connected with the switching...
5837949 Circuit breaker draw apparatus and system with a slider flange attached to the active draw bracket  
A circuit breaker draw apparatus, means and system for use with a circuit breaker assembly, where the circuit breaker assembly has a circuit breaker unit that is adapted for connection to or...
5837950 Drawer type circuit breaker with drawer contacts biased against contact arcuate portions and external connection terminals  
In a drawer type circuit breaker of the invention, when a first contact is clockwise pivoted by a switching mechanism, the contact tip of the first contact and the contact tip of a second contact...
5761025 Low cost power switchgear  
There is described a novel arc extinction method for use in switchgear, and improved, low cost power switchgear incorporating the novel arc quenching method. By physically severing the arc and the...
5757260 Medium voltage switchgear with means for changing fuses  
Fuses for the potential transformers (PTs) in medium voltage switchgear are mounted in fuse assemblies which are reciprocated within the switchgear enclosure independently of the transformers they...
5594221 High ampere-circuit breaker secondary disconnect arrangement  
A secondary disconnect arrangement, in the form of a plug connector attached to the sides of a high ampere-rated circuit breaker assembly, interacts with a receptacle connector attached to the...
5530414 Switching accessory for use with motor starters  
A switching accessory is provided for use with motor starters. In a first embodiment the accessory may be utilized as a motor starter by-pass. In another embodiment the accessory may be utilized as...
5486662 Flexible connector for a circuit interrupter  
A flexible connector for connecting a movable contact of an electrical switch to a fixed electrical terminal. The flexible connector is a stack of flexible sheets of a conducting material. The...
4933519 Contact structure for grounding switch  
A grounding switch device for a metal-clad switchgear is adapted to be inserted into a standard circuit breaker cell allows the bus and line conductors within the switchgear assembly to be grounded...
4800460 Electrical power protection technique  
An electrical power protection technique which is especially suitable for use in three-phase high voltage switch gear applications is disclosed herein. This technique utilizes an electrically...
4777559 Article mounting and handling method and apparatus  
An article mounting and handling arrangement is provided for use with an enclosure to allow access to and replacement of the articles in a position removed from the operating environment. The...
4773870 Pull-out frame with a protective plate for a break-contact arrangement  
A pull-out frame has drivers which are movably guided in a straight line at side walls, with a working surface which interacts with a working surface of a lifting lever which likewise is supported...
4742428 Protective relay and drawout case therefor  
Protective relay apparatus is constructed of an operating unit that is withdrawable from its insulating housing through an opening at the front thereof. A plurality of sets of shorting contacts and...
4689716 Modular barrier assembly  
A barrier for use in electrical terminal cabinets includes a set of barrier guides permanenty affixed to the rear of the cabinets and a set of inwardly extending support rails mounted to the...
4688145 Removable fuse assembly for pad mounted underground distribution switchgear  
A mounting assembly removably supporting an over current fuse package in an opening in a switchgear enclosure. The fuse package having an entry bushing on one side and an internal bushing on the...
4686334 Frame with clip-on draw-in grips for a withdrawable multipole circuit breaker  
The invention relates to a frame for housing a withdrawable circuit breaker. The rear wall of the frame comprises an insulating support, through which fixed connection terminals pass, each...
4546221 Draw-out switchgear having improved disconnect contacts  
The invention concerns a draw-out circuit-breaker having high electrical performances. Each draw-in terminal clamp comprises at least one U-shaped guiding slide operating in conjunction with the...
4531174 Draw-out circuit breaker with improved external connectors  
An improved draw-out circuit breaker assembly for use in a switchboard with means for automatically tripping the breaker upon removal of the breaker from a fully engaged position within the...
4491898 Fuse mounting for pad mounted underground distribution system  
A fuse mounting arrangement for a pad mounted underground electrical power distribution systems includes at least one fuse panel which is slideably mounted by means of slide bearing assemblies in a...
4491896 Draw-out circuit breaker  
An improved draw-out circuit breaker assembly for use in a switchboard with means for automatically tripping the breaker upon removal of the breaker from a fully engaged position within the...
4489361 Horizontally compact substation  
This invention deals with a substation in which one terminal of a breaker which consists of breaking sections elevationally contacted and separated is electrically connected to a transformer, said...
4477701 Secondary disconnect plugs for programmable circuit breakers  
A secondary disconnect plug is arranged on the sidewall of a circuit breaker compartment for mating with a complimentary receptacle attached to the sidewall of a track-mounted circuit breaker for...
4384179 Stiff flexible connector for a circuit breaker or other electrical apparatus  
Vacuum circuit interrupter apparatus is taught in which a movable stem is interconnected with one of the separable main contacts thereof. Flat planar flexible conductors connected in parallel...
4376235 Electrical junction of high conductivity for a circuit breaker or other electrical apparatus  
Electrical apparatus and more particularly vacuum electrical circuit breaker apparatus is taught. The electrical apparatus has a cylindrical movable terminal stem which is to be interconnected with...
4315115 Drawout circuit interrupter  
A drawout circuit interrupter comprising a multipole circuit breaker movable between connected and disconnected positions of incoming and outgoing terminals with corresponding conductor terminals...
4209821 Multi-breaker type gas-insulated switchgear  
Disclosed is a multi-breaker type gas-insulated switchgear to couple two main bus bars of which three switching blocks are connected, respectively, between each pair of in-phase single phase bus...
4154993 Cable connected drawout switchgear  
A drawout switchgear assembly which can be disconnected from a shielded cable electric distribution system under energized cable conditions. Each of the switchgear source and load bushings is held...
4121067 Contact structure for drawout switchgear  
A contact structure characterized by a plurality of pairs of oppositely disposed contact fingers for engaging a terminal stab, biasing means comprising leaf springs at the outer sides of the...
4012609 Circuit-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...
3899722 Plastics-insulated switch unit for multi-phase high-voltage switchgear installations with earthing contact  
A plastics-insulated switch unit for multi-phase high-voltage switchgear installations includes a frame made from a plastic material such as moulded synthetic resin in a solid or foam state...
3894204 38KV low current fused switch  
A low current high voltage switch having a bridging contact comprising vertical contact probes entering arc extinguishing and confining bushings to engage the main contacts; the bridging contacts...
3869192 CIRCUIT BREAKER WITH PRE-LOADED TERMINAL CONNECTORS  
An electrical control device characterized by a drawout circuit breaker and spaced electrical stabs. The circuit breaker includes quick-detachable terminal connectors comprising a pair of...
3833780 DRAW OUT TYPE ELECTRICAL SWITCHGEAR WITH IMPROVED MOVABLE CONTACT ASSEMBLY MOUNTING MEANS  
An oil-immersed circuit breaker comprising one or more pairs of arcuate fixed contacts, an equivalent number of arcuate bridging contacts insulated from and supported on a carrier structure, means...
3691322 REVERSING SWITCH  
A reversing switch for mounting in an electrically powered tool, utensil or other motor driven device for selectively reversing the direction of rotation of an electric motor, such as for instance,...
3681545 DRAWOUT SWITCHGEAR  
Improved drawout switchgear comprises interlocking means automatically operable to lock the movable assembly in the connected position with interlock defeating means operable to maintain the...
3621170 GAS-FILLED SEPARABLE CONTACTS FOR HIGH-VOLTAGE SWITCHGEAR  
A chamber filled with high-pressure SF 6 surrounds the disconnect contacts of a circuit breaker when the breaker is connected to the cooperating terminals of a metal-clad switchgear housing to...
3598935 MULTIPLE POLE ELECTRICAL SWITCH WITH IMPROVED SNAP-ACTION ACTUATOR STRUCTURE  
A multiple pole electrical switch comprising plural male and female contacts mounted on a pair of spaced contact-carrying members. The male contacts are jointly removable axially into and out of...
3325615 Isolating switches equipped with cartridge fuses  
3229058 Cubicle unitary molding for upper and lower terminal assembly and current transformers  
Matches 1 - 50 out of 53 1 2 >