269 results about "High voltage insulators" patented technology

Contamination monitoring of high voltage insulators provides a system and method producing an early predictor for high voltage insulator failure, allowing repairmen to either already be on site when a high voltage insulator fails in order to expedite repair time, or allowing repair and / or replacement of a faulty insulator before the failure actually occurs. The system and method provide transmission of an alarm signal when contaminant levels (such as equivalent salt deposit density (ESDD) levels) formed on a high voltage insulator exceed pre-selected threshold values, indicating the likelihood of high voltage insulator failure.

The high-voltage insulator for securing a high-voltage wire in an electrical plant or in an electric power line comprises an insulating body, the first end of which is used for mechanically connecting to a high voltage wire and / or to a fixing device, the second end being provided with a metal fixture which is fastened thereto and is used for attaching the insulator to a tower. In order to impart lighting protection properties to the insulator, it is also provided with a multi-electrode system consisting of m electrodes, which are mechanically coupled to the insulation body and are arranged between the ends thereof. The electrodes are disposed in such a way as to form an electric discharge between the adjacent electrodes, between the electrode adjacent to the first end of the insulation body and the high voltage wire or the fixture thereof and between the electrode adjacent to the second end of the insulation body and the metal fixture connected to the tower. The insulator is provided with means for compensating the reduction of the insulator creepage path caused by the multi-electrode system. The electric power line using the insulators of this type do not require lighting dischargers.

The invention relates to equipment for performing dust removal by utilizing static electricity. An inlet distribution plate is arranged in an inlet seal head; an anode plate is arranged in an electric field and is matched with a corona discharge electrode; the anode plate is arranged in a V shape; inlet ventilating boards are alternately arranged at the inlet end; the corona discharge electrode is electrically insulated from a shell on the top of the electric field by using a high voltage insulator; the corona discharge electrode is vibrated by adopting a middle or top cathode; the anode plate is vibrated by adopting a bottom anode; an ash bucket is arranged on the lower part of the electric field and is used for collecting the shaking dust; an outlet seal head and an outlet distribution plate are arranged at the outlet of the electric field; outlet ventilating boards are alternately arranged at the outlet end of the electric field. The equipment has the beneficial effects that secondary dust raising caused in the process of removing dust on the electric precipitation plate is overcome, and the problem that the collected dust escapes again is solved, so that the charged dust particles are not influenced by wind force. Moreover, the wind power is assisted to be forced to push to a dust collection plate, the bottleneck that the national emission standard cannot be reached due to high specific resistance trapping difficulty is broken through, and the overall construction cost is greatly saved.

A polymer base composite high voltage insulator is described having a monolithic protective coating of a one-part room temperature vulcanizable organopolysiloxane rubber composition obtained by mixinga) from about 20 to about 60 weight percent of one or more polydiorganosiloxane fluids having a viscosity of from about 10 to about 100,000 centipoise at 25° C.,b) from 0 to about 40 weight percent of a cyclo-organosiloxanec) from 0 to about 40 weight percent of an inorganic extending or non-reinforcing fillerd) from about 0.5 to about 15 weight percent of an amorphous SiO2 reinforcing filler having a surface area of between about 100 to 250 m2 / g and a particle size range between about 0.01 and 0.03 microns;e) from about 1 to about 10 weight percent of an oximinosilane cross-linking agentf) from about 0.2 to about 3 weight percent of an adhesion promoterg) from about 0.02 to about 3 weight percent of an organotin salt as a condensation catalyst; andh) from about 20 to about 50 weight percent of alumina trihydrate, the alumina trihydrate having a median particle size of 10 μm to 3 μm, containing 65.1 percent Al2O3, 34.5 percent combined H2O, 0.3 percent Na2O, 0.02 percent CaO, 0.01 percent SiO2 and having a specific gravity of 2.42.

A time division multiplexed optical voltage measuring system includes an optical voltage sensing system module including, (i) a plurality of optical sensors where each sensor is responsive to an input interrogation light wave, and (ii) one or more optical outputs affected by sensed electric field thereat. The optical voltage sensing system module includes an optical circuit arrangement having (i) an input for receiving a module specific pulsed light wave derived from a primary pulsed light wave from a remote light source, and (ii) arranged such that each of the plurality of optical sensors receives an interrogation pulsed light wave. The optical circuit arrangement of the optical voltage sensing system module further includes at least one optical wave combiner for combining like-kind of outputs from all of the plurality of optical sensors. The optical circuit is arranged such that the pulsed light waves from the outputs of different optical sensors arrive at the optical wave combiner at differing times. In turn, the output of the combiner is passed to a detector and signal processor at a remote location for signal processing, and providing a measurement of the voltage intended to be measured. In a specific embodiment, each voltage sensing modules is arranged integral with a high voltage insulator column of a multi-phase power line system.