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7525048 |
Protection device for chains of insulators of high-voltage transmission lines
Device for the protection from effects of an electric field, of the metal parts of chains of insulators of already mounted and operational high-voltage transmission lines includes:
a...
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7109877 |
Fault monitoring apparatus and method
A fault condition monitoring apparatus for use with a fuse cutout includes a housing operable to be supported by the fuse cutout. The housing has first and second contacts operable to make...
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6724291 |
Door sensing fuse block with side extending rotary disconnect
A fuse block for cabinet mounting provides a shaft that may exit a side of the cabinet to be received by a handle mounted on that side. A finger attached to the inner cabinet door provides for an...
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6531948 |
Fuse handler
A fuse handling device for use with a fuse unit having a pair of contacts between which a fuse terminals which act as switching contacts may extend in use. The handling device comprises an...
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6418005 |
Power circuit breaker
The power circuit breaker has an igniter unit disposed in a cylindrical wall formed in a main housing. A holder is disposed in the cylindrical wall so as to oppose to the igniter unit. The holder...
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6211768 |
Non-venting cutout mounted fuse
A non-venting current limiting fuse for mounting in a cutout comprises a high current fuse component and a low current fuse component housed in separate compartments of a housing and connected in...
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6130391 |
Method of manually operating an actuating device
An actuating device operated by a hookstick is attached to an existing ring on a manually operated fused cutout switch or oil circuit recloser switch. The device comprises a cantilever and a clamp...
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6093901 |
Manually operated actuating device
An actuating device operated by a hookstick is attached to a manually operated oil circuit recloser switch. The device comprises a cantilever and an affixed switch lever. The cantilever includes a...
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5982266 |
Fuse block-out device
An improved fuse block-out device is disclosed that includes a fuse block-out device that includes a first portion shaped to be received by a fuse block and a second portion shaped to securely...
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5805046 |
Current responsive latching apparatus for disconnecting and isolating an electrical device
A current responsive latching apparatus may be employed in a dropout fuseholder or other electrical component for retaining the component in a current-carrying position and disconnecting and...
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5773777 |
Circuit-interrepting device with handling features
A circuit-interrupting device for electrical power distribution and transmission systems is provided having improved handling provisions for removal and installation with respect to conventional...
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5760673 |
Current limiting fuse and dropout fuseholder
A current-limiting dropout fuseholder includes multiple current paths through the fuse body. A primary current path includes a high current fusible element. A secondary current path in parallel...
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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...
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5675308 |
Current-limiting fuse and housing arrangement having a seal between an element and housing
A low-exhaust composite drop-out assembly is provided that is utilizable in a standard cutout mounting in electrical power distribution systems. The composite drop-out assembly includes...
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5670927 |
Universal fuse holder and cut-out with built-in safety features and method
A universal fuse holder and cut-out is provided with a slot having a length L and width W aligned with the fuse tube and engageable with the fuse tube and engageable by a projecting arm or member...
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5604475 |
Current-limiting fuse and housing arrangement
A current-limiting device is provided having a low profile configuration (generally flat polyhedron) that defines a cavity of predetermined dimensions and an elongated circuitous path through the...
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5485136 |
Load break disconnecting device with solid arc suppression means
An improved load break disconnecting device is disclosed, comprising a conductive portion having a non-gassing fuse, a fuse cartridge having first and second ends and enclosing said fuse, a...
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5300912 |
Electrical cutout for high voltage power lines
An electrical cutout with a modular product design is provided with a constructional configuration for the insulator wherein the insulator is light in weight, has sufficient mechanical strength,...
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5191311 |
Switch for use as a vertically mounted cut out or in-line switch
A switch, for an electrical transmission line, can be used as a vertically mounted cut out or as an in-line switch. The switch has an insulator, mounting bars at either end, and a first and second...
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5093657 |
Distribution cutout condition sensor
A fused cutout for a power distribution system, which cutout includes an insulating member (2) having two opposed ends and a recess located between the two opposed ends, a fuse (12) defining a...
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4961063 |
Fuse tube for power and cutout fuses
A fuse tube is provided for cutout and power fuse assemblies. The fuse tube has a body with a red retroreflective portion and a white retroreflective portion. When conducting the red portion lies...
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4906961 |
Rain shield for expulsion-type circuit interrupters
A rain shield for a circuit-interrupting device is provided that includes a housing for attachment to the circuit interrupter adjacent an exhaust outlet of the circuit interrupter. The rain shield...
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4870387 |
Beam strengthened cutout insulator
An improved, integrally cast, synthetic resin insulator (22) especially adapted for use in an electrical cutout device (20) is provided which can be readily fabricated and gives greatly enhanced...
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4857879 |
Drop-out expulsion fuse
An ejecta trap for a drop out expulsion fuse of the type comprising an elongate insulating body with a conductive head fitting and tail socket. The tail socket is pivotally connected to the tail...
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4688013 |
Switchgear assembly for electrical apparatus
A switchgear assembly for an electrical apparatus capable of improving operability thereof to a practical extent, as well as reducing not only installation area or space for various devices to be...
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4542363 |
Open fuse cutout
An open fuse cutout has a built-in lightning arrester. A supporting insulator has an attachment hole extending substantially perpendicularly to the axis thereof with the lightning arrester element...
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4480245 |
Electric cutout
An electrical cutout having a support insulator with a line terminal and fuse support assembly at each end, each of which includes a line terminal, a fuse support element and means for their...
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4480244 |
Apparatus for the remote closing of fuse circuits
Apparatus for remote closing of fuse circuits for overhead power lines is described which has a body fabricated of insulating material for detachable engagement with a fuse tube, the apparatus...
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4326184 |
Electric cutout
An electric cutout includes a fuseholder in which a fusible element is mounted, a conducting element pivotally mounted to the lower end of the fuseholder and having a pair of trunnions disposed...
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4321575 |
Fuse cut-out recloser apparatus
A fuse recloser for placing a fuse in a vertically oriented fuse holder includes a channel-shaped fuse shoe pivotally mounted within a channel-shaped support. The side arms of the shoe and support...
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4313100 |
Fuse tube with mildly tapered bore
A single-vented fuse tube has a bore lined with an arc-extinguishing material. A movable contact moves away from a stationary contact in the bore and toward and out of an exhaust opening. An arc...
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4184138 |
Offset, series connected current limiting fuse and expulsion fuseholder assembly for opengate cutout
A combination dropout assembly adapted for use with protective cutouts in an electrical distribution system comprises a current limiting fuse electrically connected in series with an explusion-type...
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4114128 |
Composite sectionalized protective indicating-type fuse
An indicating composite sectionalized fuse is provided having a high-current interrupting section, and a mechanically-connected detachable low-current interrupting section in series therewith, with...
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4078221 |
Load-break switch and current-limiting fuse combination
Load-break switches and current-limiting fuses are often serially connected and placed one above the other. This arrangement is relatively bulky, and involves in particular relatively large...
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3827010 |
COMPOSITE SECTIONALIZED OPEN-TYPE DROP-OUT-TYPE FUSIBLE OUTPUT WITH SERIES ENCLOSED CURRENT LIMITING FUSE
A sectionalized open-type drop-out fusible cutout is provided having a high-current interrupting section, a mechanically-connected low-current interrupting section in electrical series therewith,...
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3692921 |
CABLE COUPLER
There is provided an improved high voltage cable coupler having a body of integrally cast dielectric polymer chemically formed in situ and having at least one cable receiving channel therethrough....
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3423574 |
ELECTRICAL RESISTANCE HEATING PAD
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3319026 |
Multiple pole fused disconnect switch
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3299235 |
Fuse and disconnect device for manual or thermal operation
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3283215 |
Electrical fuse-disconnect switch boxes
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3274361 |
Thermal fuse utilizing an electrically conductive pellet
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3218517 |
Combined lightning arrester and fuse cutout
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3132226 |
Oil filled fuse cutout with arc interrupting means
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2873347 |
Thermal responsive device
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2843703 |
Fuse protective system
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2836679 |
Fuse cutout construction
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2820867 |
Enclosed cutout having a load break device
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