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7064267 |
Gas insulating apparatus and method for locating fault point thereof
The present invention combines sensor portions 22, 23 of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and...
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6850399 |
Gas insulated device and failure rating method
The present invention combines sensor portions 22,23 of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and bushings...
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6735067 |
Spark gap device for high-power electrical generators
A high-voltage spark gap device for operation in conjunction with a high-power electric generator and including an electric trigger system and at least two mutually spaced spherical main electrodes...
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6356428 |
Suspension device for line-mounted surge arrester
A suspension device for a line arrester in an air-insulated transmission line including two suspension parts which support the line arrester such that its longitudinal axis deviates from the...
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6014306 |
Electrical device with wedge insert gas seal for probe
An electrical device has a housing with an internal cavity lined with insulating material. An electrical component is mounted in the cavity between the opposite ends of the housing. An electrically...
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5991141 |
Surge arrester arranged to provide failure indication
A failure indicator device for a surge arrester (2) employs a conventional explosive disconnector (10). Operation of the disconnector (10) due to earth fault current passing through the arrester...
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5952910 |
Isolator device for arrester
A device for connecting, and then isolating and disconnecting an arrester includes a non-conductive housing with two electrical terminals. The housing has opposite ends separated by an internal...
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5400207 |
Isolator-arrester assembly
An arrester assembly for protecting a circuit from electrical switching and lightning surges includes an isolator and a surge arrester. The isolator has one electrically conductive terminal...
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5317473 |
Surge arrester assembly
The invention relates to a surge arrester assembly with a plurality of parallel-connected arrester units (1) with polymer casing mounted in a rack. The lower and upper parts of the rack consist of...
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5309313 |
Fault gas seal for a polymer surge arrester
Fault gas seals to prevent the ejection of a surge arrester from a loadbreak bushing due to the generation of such gas in response to the failure of arrester devices in such surge arrester. A metal...
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5237482 |
High voltage surge arrester with failed surge arrester signaling device
A high voltage surge arrester includes first, second and third terminals. Arrester components, including one or more arrester valve blocks, are serially disposed in an insulating arrester housing...
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5216570 |
Suspension-type line arrester
An arresting insulator is provided which includes an insulator body made of an insulative material and a non-linear resistor. The insulator body includes a head for linking the insulator to an...
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5124872 |
High tension circuit breaker having varistors
A high tension circuit breaker comprising at least one circuit-breaking chamber and, in parallel with the circuit-breaking chamber, firstly a varistor in series with an interrupter, and secondly a...
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4991053 |
Surge arrester with draining insulative bracket
A surge arrester comprises a molded insulative support bracket for mounting the arrester to a metallic bracket. The insulative bracket includes at least two stringers that form at least one...
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4972291 |
Surge arrester with improved insulative bracket
The insulative support bracket of a surge arrester includes a concentric annular concavity formed at one or both ends of a bolt hole. A washer, when pressed concentrically to the concavity,...
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4864455 |
Arrester disconnecting device
A surge arrester disconnecting device which includes a fixed electrode, a movable electrode, and a latch device for holding the two electrodes in engagement. A trigger device, associated with a...
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4782423 |
Lightning arrester
A lightning arrester for discharging electricity from an electrode in a container of the ground voltage level filled with electric insulation fluid when an excessive voltage is imposed on the...
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4774622 |
Connecting apparatus for lightning arresters for overhead transmission lines
A connecting apparatus includes a connecting conductor for connecting a supporting insulator supporting an overhead transmission line and a lightning arrester through a disconnecting member. The...
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4761707 |
Lightning-conducting insulators
A lightning-conducting insulator is disclosed, which comprises an insulator body consisting of a shed portion, a plurality of rib portions provided inside the shed portion, and a cup-like...
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4725917 |
Current limiting horn device for transmission line
A current limiting horn device for a transmission line supported by sets of insulators suspended from arms of steel towers. The device includes horns located respectively at charging and earthing...
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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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4541033 |
Power switch assembly having a circuit breaker and a circuit disconnector
A power switch assembly has a horizontal supporting base, a circuit disconnector including a first supporting porcelain insulator vertically disposed on the supporting base, a stationary contactor...
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4535253 |
Mobile electrical apparatus
A mobile electrical apparatus comprises a main electrical apparatus and three lightning arresters mounted on the vehicle. The electrical devices are so arranged that they are moved to the retracted...
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4524404 |
High voltage insulator assemblage having specially-chosen series resistance
The invention relates to an outdoor high voltage insulator, wherein the flashover due to the effect of external layers or deposits of pollution is prevented or at least shifted in the direction of...
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4502132 |
Power switch apparatus
A supporting insulator (9) to support the driving mechanism (6) of a disconnect switch part (100) and a supporting insulator (9) of a breaker (10) are unified. The heights of the fixed contact (4)...
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4467387 |
Combination strut insulator and lightning arrester
An elongated, insulative tube of high mechanical strength is equipped with fittings at each end for electrical connection with a high voltage transmission line and a grounded tower. An external...
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4320432 |
High voltage transformer bushing fuse and arrester arrangement
A high voltage transformer bushing having an inner conductor extending from a lower end to a point spaced from an upper end and having a side terminal at that point connected to a fuse link which...
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4308566 |
Lightning arrester device for power transmission line
A lightning arrester device for power transmission line comprises a lightning arrester comprising a sintered product made of a main component such as zinc oxide; a serial connection of a reactor...
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4270160 |
Lightning resistive device in aerial power transmission system
Lightning arresters comprising each non-linear resistor made of a main component of zinc oxide and the other minor component are connected between a steel tower and a power transmission cable...
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4201883 |
Guard for a high voltage electrical terminal bushing
A guard for a high voltage terminal bushing includes a generally circular planar isolating member of an electrically insulating material which is mounted on the upper surface of the bushing and...
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3988645 |
Laminar insulating material for electrical apparatus
The invention is directed to a laminar insulating material for electrical apparatus insulated by a fluid such as an insulating gas or an insulating liquid. The laminar insulating material includes...
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3936703 |
Gas-insulated electric power apparatus including a surge arrester with hot gas relief means
A voltage surge arrester disposed in a metal enclosure pipe containing an insulating gas is provided with a gas vent adjacent the line voltage terminal end of the arrester for venting gases which...
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3778538 |
INSULATING ARRANGEMENT FOR INCREASING BREAKING VOLTAGE STABILITY OF HIGH VOLTAGE INSTRUMENTALITIES
A high voltage instrumentality including electrodes having wide sparking distances and inhomogeneous field lines between them in air. An insulating arrangement provides a guided path for premature...
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3602658 |
DISCONNECT SWITCH HAVING REDUCED SUSCEPTIBILITY TO ELECTRICAL BREAKDOWN
A grading post is provided at the jaw of a disconnect switch, and both it and the cooperating contact blade of the switch are constructed with substantially spherical projections in offset...
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3586913 |
HIGH VOLTAGE LIGHTNING ARRESTER HAVING A DISCHARGE SURGE COUNTING DEVICE MOUNTED ON ITS TOP TERMINAL BY INSULATING MEANS
A high voltage lightning arrester having a vertical height in excess of 20 feet is provided with a discharge surge counting device mounted adjacent its uppermost terminal by insulating members that...
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3487255 |
CORONA FREE SPARK GAP
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3448343 |
COMBINED OVERVOLTAGE PROTECTIVE DEVICE AND CONDUCTOR SUPPORT
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3435397 |
COMBINATION OVERVOLTAGE PROTECTIVE DEVICE AND CONDUCTOR SUPPORT
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3400301 |
Lightning arrester in combination with an arrester disconnector containing explosivemeans
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3374327 |
Line insulator-lightning arrester
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3360686 |
Lightning protection assembly for overhead lines
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3339116 |
Line support insulator with discharge means
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3335213 |
Lightning arrester bracket and assembly
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3294892 |
Three-phase cluster mounted lighting arrestor
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3252054 |
Arc protector for high voltage insulators
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2971132 |
Lightning arrester constructions
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2896116 |
Spark gap constructions
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0991749 |
Title is not available
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1001137 |
Title is not available
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