EP3827456A1 - Hochspannungs-schaltgerät mit einer vorrichtung und verfahren zur spektralanalyse - Google Patents
Hochspannungs-schaltgerät mit einer vorrichtung und verfahren zur spektralanalyseInfo
- Publication number
- EP3827456A1 EP3827456A1 EP19769073.8A EP19769073A EP3827456A1 EP 3827456 A1 EP3827456 A1 EP 3827456A1 EP 19769073 A EP19769073 A EP 19769073A EP 3827456 A1 EP3827456 A1 EP 3827456A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage switching
- switching device
- contact
- arc
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/26—Means for detecting the presence of an arc or other discharge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/027—Integrated apparatus for measuring current or voltage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/567—Detection of decomposition products of the gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
Definitions
- the invention relates to a high-voltage switching device and a method for spectral analysis, the high-voltage switching device comprising a housing and at least one electrical contact.
- the contact is arranged in the housing and comprises at least two contact pieces which are designed to conduct an arc when switching.
- High-voltage switching devices include, for. B. high-voltage circuit breakers, disconnectors and / or earth electrodes.
- High voltage circuit breakers such. B. from DE 196 08 285 Al, are used for switching high voltages in the range of up to 1200 kV and high currents in the range of up to a few hundred amperes, in power generation, power distribution and / or for electrical consumers.
- the high-voltage switchgear is subject to different wear mechanisms, which limits the life of the high-voltage switchgear. One of the wear mechanisms is based on arcing due to arcing between electrical contact pieces.
- High-voltage switching devices include, for. B. vacuum tubes, which are located in a housing, in particular an insulator with Clean Air as the insulating gas, are arranged.
- a vacuum tube comprises at least one contact, each with two contact pieces, where at least one contact piece is movably mounted.
- the contact pieces have z. B. contact plate, which are arranged parallel to each other, and are moved towards each other when switching on until there is a mechanical and electrical con tact, and moved away from each other who the until the electrical contact is interrupted.
- an arc can occur at high voltages ignite and burn between the contact pieces. The arc is extinguished when switching on with mechanical contact of the contact pieces and when switching off the arc can extinguish when reaching a sufficiently large distance between the contact plates, for. B. by insulation over Va vacuum between the contact plates.
- the arc burns when switching on and / or off between the contact pieces or the contact plates, i. H. is performed between the contact pieces.
- Structures such as B. mean-shaped, drawn to the outer periphery of the contact plate grooves in the flat contact plates, allow movement of the arc when switching to the outer periphery of the contact plate.
- the arc can go out in the area due to a reduced electric field compared to the central area of the contact plate.
- the arc reaches temperatures of up to over 1000 degrees Celsius.
- the surface is strongly heated by the arc and copper can evaporate. This so-called erosion damages the surface structure, in particular of polished contact plates, reduces the quality of the vacuum in the vacuum tube, and is reflected in other areas of the vacuum tube, where the electrically insulating properties of insulator surfaces can deteriorate.
- the contact plates When switched on, the arc leads to a local heating of the contact plate, in particular to a local melting on the surface. As a result, the contact plates can merge locally in these areas when the contact plate is in mechanical contact when it is switched on. When switching off, the contact pieces are torn apart, whereby particles can detach from the surface of the contact plate. The particles can interfere with the function of the vacuum tube, e.g. B. electrical insulation via insulator surfaces between the contact pieces in the switched-off state. like and lead to electrical flashovers between contact pieces.
- High-voltage switching devices in particular high-voltage circuit breakers, alternatively or in addition to vacuum tubes include. B. rated current and / or arcing contacts.
- the nominal current contact comprises at least two nominal current contact pieces, at least one nominal current contact piece being movably mounted.
- the arcing contact comprises at least two arcing contact pieces, at least one arcing contact piece being movably mounted.
- the contacts are in a housing, e.g. B. an insulator made of ceramic, silicone and / or a composite material, in particular outdoor high-voltage circuit breakers, the hous se is filled with an insulating or switching gas. As switching gas z. B. SF 6 and / or Clean Air used.
- the arcing contact When switched on, the arcing contact is closed mechanically and electrically, by moving the arcing contact pieces towards each other. An arc can burn between the arcing contact pieces. Only when electrical contact is closed via the arcing contact pieces, the nominal current contact is closed, by moving the nominal current contact pieces toward one another until they are in mechanical and electrical contact with one another. The previously closed arc contact can prevent an arc from burning between the rated current contact pieces.
- the nominal current contact pieces are mechanically and electrically separated in the first step. Due to the closed electrical contact via the arcing contact pieces, the ignition of an arcing between the nominal current contact pieces can be prevented. In the second
- Step the arc contact pieces are separated from each other, whereby an arc can ignite and burn.
- an arcing can occur between the arcing contact pieces go out.
- an insulating or blowing nozzle can be arranged around the arcing contact pieces, which prevents electrical arcing between arcing contact pieces and nominal current contact pieces, and which can cause an arc to be extinguished by an insulating gas or switching gas flow.
- An arc which burns between the arcing contact pieces, leads to a strong local heating of the arcing contact pieces, material in the form of particles being able to detach from the arcing contact pieces and / or from the insulating or blowing nozzle, and / or evaporates.
- the particles and / or evaporated material lead to a deterioration in the insulating properties of the insulating gas and, when adsorbed on the walls of the housing, to deteriorating insulating properties z.
- B. the insulator housing the erosion on the contacts leads to wear and a reduced service life of the high-voltage switching device.
- the object of the present invention is to provide a high-voltage switching device and a method for using a device for spectral analysis in a high-voltage switching device which solve the problems described above.
- it is the task of simple, inexpensive, reliable and specific to detect or monitor the erosion of contacts, in particular arcing contact pieces, and particles in a high-voltage switching device, and z.
- B. deduce conclusions for maintenance and replacement of parts or the entire high-voltage switching device.
- the stated object is achieved by a high-voltage switching device according to patent claim 1 and / or by solved a method for using a device for spectral analysis in a high-voltage switching device, in particular in a previously described high-voltage switching device, according to claim 10.
- Advantageous refinements of the high-voltage switching device according to the invention and / or the method for using a device for spectral analysis in a high-voltage switching device, in particular in a high-voltage switching device described above, are specified in the subclaims.
- Objects of the main claims are mutually combinable and with features of subclaims and features of the subclaims.
- the high-voltage switching device comprises a housing and at least one electrical contact, the contact being arranged in the housing and comprising at least two contact pieces which are designed to conduct an arc when switching. Furthermore, the high-voltage switching device according to the invention comprises a device for spectral analysis.
- the erosion of contacts, in particular arcing contact pieces, and particles in the high-voltage switching device can be detected, analyzed and / or monitored easily, inexpensively, reliably and specifically.
- Conclusions for the maintenance and / or the replacement of parts or the entire high-voltage switching device can be derived from the results.
- the device for spectral analysis can include at least one optical waveguide.
- An optical waveguide is inexpensive and can be easily and easily guided to the examination site, even in confined areas of the high-voltage switching device, in which, in particular, rough conditions prevail for analysis devices. High temperatures and pressures are possible in the area of the arc, and there is particularly little space between the arcing contact pieces.
- At least one optical waveguide can be arranged in the region of the arc or adjacent to an arc region.
- a Lichtwel lenleiters which z. B. includes glass, in areas with high temperatures and pressures close to the arc, a spectrum or individual wavelengths of the arc and / or the intensity are recorded.
- a dense arrangement of the optical waveguide at the arc area results in high light intensities to be examined, which are generated specifically by the arc.
- An analysis of the wavelengths and intensities shows z. B. specific results with regard to combustion products, the intensity of combustion and any particles that may arise, e.g. B. on the electrodes and / or on egg ner blowing nozzle.
- the optical waveguide is robust to the temperatures and pressures, which prevents damage and / or destruction, and is robust to products of the erosion, which, for. B. can condense.
- the small diameter of the optical waveguide makes adsorption of material on the optical waveguide unlikely.
- a design of the optical fiber tip, for. B. rounded with a certain radius, can lead to surface tension in the case of separated layers on the tip when cooling, which leads to flaking of the layers.
- a clean, unoccupied end of the optical waveguide can be maintained over time, which enables an undisturbed optical analysis of the arc over a long period of time without maintenance.
- the high-voltage switching device can be a high-voltage circuit breaker, and the at least one contact can comprise a nominal current contact, with at least two nominal current contact pieces, in particular a movable and a fixed nominal current contact piece, and an arcing contact comprise, with at least two arcing contact pieces, in particular a movable and a fixed arcing contact piece.
- An insulating or blowing nozzle can be included to extinguish the arc.
- the high-voltage switching device can comprise a disconnector and / or earth electrode.
- a disconnector and / or earth electrode In particular in high-voltage circuit breakers with a closed housing and contact pieces inside is a visual contact z. B. difficult during service inspections and monitoring of contact pieces. A spectral analysis can provide important information on the extent to which the contact pieces are worn or damaged by burning and / or abrasion, in particular with the formation of particles. The degree of wear and / or erosion allows conclusions to be drawn as to whether and when maintenance needs to be carried out. Regular maintenance intervals such. B. can be extended or only if necessary, maintenance, which saves personnel, costs and effort. When reaching a certain, e.g. B. predefined degree of wear and tear, parts and / or the entire high-voltage circuit breaker can be replaced. This ensures safe, reliable operation over long periods of time with minimal effort and costs.
- At least one optical fiber can be arranged on or in a blowing nozzle for switching gas, in particular SF 6 and / or Clean Air.
- An optical waveguide can be brought to the areas with visual contact to the arc, in particular via a bore in the blow nozzle, so that spectral analysis is possible simply and reliably with good mounting. Burn-up products of the blowing nozzle and their condition, pieces of contact and degradation products of the switching gas, which can lead to destruction of the switch, can be determined in this way, with the advantages described above.
- a vacuum tube can be included, in which at least one contact is arranged.
- an optical waveguide which is guided into the vacuum tube, the vacuum, the erosion on the contact pieces and / or particles of the contact pieces can be analyzed in particular via an arc, which z. B. when turning off by tearing the contact pieces can occur with the previously described NEN advantages.
- the device for spectral analysis can comprise a spectrometer, in particular an optical spectrometer.
- a spectrometer in particular an optical spectrometer.
- the optical lines and / or spectra and their intensity can be measured, which arise when an arc is burned.
- the spectrometer can be designed to measure the intensity of characteristic optical lines of a specific wavelength. Characteristic optical lines can be specific for certain substances, especially combustion products. By measuring or monitoring the intensity, in particular over time, statements can be made regarding the amount of certain substances which are decomposed and / or generated in the arc.
- At least one evaluation unit and / or data storage unit and / or data transmission unit can be included, which is designed to evaluate results of the spectral analysis, in particular to compare them with predetermined values, and / or to store and / or transmit them, in particular to a central control room and / or to the cloud. This can a shutdown, maintenance, and / or replacement of parts or of the entire high-voltage switching device, in particular by personnel or automatically from a control center and / or from the cloud, are carried out or commissioned.
- a method according to the invention for using a device for spectral analysis in a high-voltage switching device, in particular in a previously described high-voltage switching device comprises that a spectrometer measures an optical spectrum and / or the intensity of characteristic optical lines in a high-voltage switching device, in particular through an optical fiber.
- the optical spectrum and / or the intensity of characteristic optical lines can be coupled out of the high-voltage switching device, in particular a high-voltage circuit breaker, and via a spectrometer module outside the housing, with at least one contact of the high voltage in the housing Switching device is arranged to be analyzed.
- optical spectrum and / or the intensity of characteristic optical lines can be measured in the area of an arc to determine the components of the fire, in particular the burn-off on an insulating and / or blowing nozzle and / or the burn-off on the contact pieces, in particular special arc contact pieces.
- Areas of the measured optical spectrum and / or the measured intensity of characteristic optical lines can be assigned to individual components of the high-voltage switching device and / or from the shape of the spectrum and / or the measured intensity of lines a degree of wear of the components can be assigned be determined.
- a remaining service life of the components can be determined and / or maintenance can be arranged and / or an exchange of components and / or the complete high-voltage switching device can take place.
- Foreign bodies in particular in the area of the arc, in particular foreign bodies which arise from mechanical wear, can be determined via the optical spectrum and / or the intensity of characteristic optical lines.
- High-voltage switching device 1 with a device for spectral analysis 8.
- a high-voltage switching device 1 with a device for spectral analysis 8 is shown schematically in a sectional view.
- the electrical high-voltage switching device 1 in particular designed as a high-voltage circuit breaker, comprises a first and a second electrical arcing contact piece 5, 6, which are arranged coaxially opposite one another. Furthermore, the electrical high-voltage switching device 1 comprises two coaxially with one another opposite nominal current contact pieces 3 and 4, each surrounding a contact piece 5, 6.
- the arc contact piece 6 is designed as a bolt and is driven in the course of an opening movement in the direction 13 ben.
- the arc contact piece 5 is designed as a tulip contact piece and is arranged in the exemplary embodiment of the figure.
- an arc 7 which is located in its area of influence quenching or insulating gas, for. B. SF 6 heats up.
- This quenching gas at least partially flows through a channel which is formed as a sheath between the tulip contact piece 6 and a first side of an insulating nozzle or blowing nozzle 11.
- the extinguishing gas flows through the duct into the heating gas room, where it is initially stored and from where it flows back to the arc 7 as soon as the extinguishing gas pressure drops there. This is normally the case when the current to be switched is at zero current.
- the back-flowing quenching gas then blows the Lichtbo gene 7 and supports the extinguishing or the dielectric re-solidification of the switching path between the contact pieces 5 and 6th
- the blowing nozzle 11 is provided, which surrounds the arc. Due to the strongly accelerated movement of the arcing contact 5 in and out of the blowing nozzle 11, with z. B. pendulum movements perpendicular to the longitudinal axis, and because of the ho hen prevailing in the area of the blowing nozzle 11 temperatures and gas pressures, the blowing nozzle 11 must be made of a stable with respect to mechanical abrasion and temperatures and pressure material.
- the blowing nozzle 11 is, for. B. made of PTFE. Abrasion when switching can lead to the formation of particles, in particular made of PTFE, which are burned in part in the arc. High temperatures and pressures, in particular a plasma of the arc 7 in the interior of the blowing nozzle 11, lead directly to an erosion of material of the blowing nozzle 11 and the Lichtbo gene contact pieces 5 and 6.
- the blowing nozzle 11 is screwed into the flange and / or clamped, and can have a thread and / or a clamping device for this purpose. In the version with a thread, this can engage in an internal thread of the flange.
- a nozzle is pushed from one side into the blowing nozzle 11 and supports the blowing nozzle 11 against radial deformations from the inside.
- the nozzle is connected to a flange which radially covers the nozzle body 11 and is connected to the cylindrical flange by means of screws. This ensures that the nozzle is not rotatable.
- the nozzle can have knurling on its outer surface, which can be pressed into the nozzle body 11 and press against its inner surface on one side.
- the high-voltage switching device 1 is gas-tight in a housing 2, in particular insulating housing, so that no insulating or switching gas, for. B. SF 6 can escape into the environment.
- the nozzle and the flange can be made of metal, for example aluminum.
- the blowing nozzle 11 is, for. B. made of plastic, Teflon, PTFE and / or PCTFE.
- Contacts 3, 4, 5, 6 are advantageously formed out of electrically highly conductive materials, such as. B. metals, especially steel or copper.
- blowing nozzle 11 is shown schematically in general form. Other shapes are possible, in particular with different inner diameters, in order, for. B. when contacting the arcing contacts 5 and 6 a quick
- the tip of the contact piece 5 with the arc 7 passes through the first area of the channel of the blowing nozzle 11, which has a larger diameter than the second area of the channel.
- the larger diameter results in a larger distance between the contact piece 5 and the insulating material of the blowing nozzle 11, as a result of which the increasing dielectric load can be compensated or prevented as the distance between the contact pieces 5, 6 decreases.
- the small diameter in the second region which essentially corresponds to the diameter of the contact piece 5, causes the heated gas not to flow in the direction of the second, but rather in the direction of the first side of the blowing nozzle 11 and thus into the heating gas space. The pressure in the heating gas room continues to increase.
- the contact pieces 5, 6 are electrically contacted and prevent the formation of arcs when the nominal current contact pieces 3, 4 approach.
- An electrical contact between the nominal current contact pieces 3, 4 can be done by arcing without damaging the nominal current contact pieces 3, 4. In the case of electrical contact interruption, the process is analogous, only in the opposite direction.
- the nominal current contact pieces 3, 4 can be separated without arcing or damage by arcing.
- the arcing contact pieces 5, 6 are subsequently separated, with a Arc 7 between the first and second contact piece 5,
- a larger diameter of the channel in the first area can provide a greater distance between the contact piece 5 and the insulating material of the blowing nozzle 11 in this area, as a result of which damage to the material by the arc is prevented or reduced.
- the pin-shaped contact piece 5 With further movement of the pin-shaped contact piece 5 away from the tulip-shaped contact piece 6, the pin-shaped contact piece 5 is guided out of the channel and furthermore it can be guided out of the region of the second side of the blowing nozzle 11.
- the blockage of the gas flow in the direction of the second side is lifted.
- the gas can flow in the area towards the second side, which is caused by the increased pressure of the gas in the heating gas space, and the gas blows out the arc 7 in the process.
- the electrical isolation of contacts 3, 4, 5, 6 is complete.
- the arc 7 burns, as previously described, between the arc contact pieces 5, 6 in the slightly to completely open state.
- the spatial area in which the arc can form is referred to in the following as the arc region 7.
- the arc 7 arises at high voltages, in particular at up to 1200 kV, and forms a plasma between the contacts 5, 6, via which an electrical line takes place.
- the spatial area in which the plasma burns is referred to below as arc 7.
- An optical fiber 9 is, for. B. inserted between the circumference of the contact piece 6 gap and the blowing nozzle 11. Due to the small diameter of an optical waveguide 9 in the millimeter range, the essential part of the gap for the gas exchange is not blocked.
- a through hole can be made in the nozzle 11 from the outside in, through which the Lichtwellenlei ter 9 is arranged, in particular glued or clamped, with the tip of the optical fiber 9 with a clear view of the arc 7 or in or adjacent to Lichtbogenbe range 12.
- the optical waveguide 9 is preferably guided on a fixed contact piece 6.
- the optical waveguide 9 can also, for. B. be guided on a movable contact piece 5, in particular because a glass fiber cable as an optical waveguide 9 has a high flexibility.
- the optical waveguide 9 can be arranged or fastened directly in mechanical contact on the contact piece 5 and / or 6.
- the optical fiber 9 can also, for. B. on the inner wall of the housing 2, in particular with one end or a tip in the area between the contact pieces 5, 6.
- Optical fiber 9 can also, for. B. through the wall from the outside to the inside into the housing 2, z. B. through a bore, in particular with one end or a tip in the loading area between the contact pieces 5, 6th
- the optical waveguide 9 is connected to a spectrometer module 10, via which a spectrum can be recorded and / or the intensity can be recorded, in particular as a function of time, over the wavelength.
- a spectrometer module 10 via which a spectrum can be recorded and / or the intensity can be recorded, in particular as a function of time, over the wavelength.
- individual lines, ie individual wavelengths can be recorded and / or evaluated over time with regard to the light intensity.
- Chemical reactions and substances in the plasma, ie in the arc 7, and their time can be determined via the spectrum and / or the intensity History and / or substance concentrations. This allows conclusions to be drawn about combustion products, in particular particles and gases in the area of the plasma, which are burned or react in the plasma at high temperatures, as well as the status of parts, in particular their damage due to fire.
- a comparison with simulations or empirical values enables the prediction or determination of malfunctions, and thus the point in time for necessary maintenance and / or replacement of parts.
- maintenance intervals can be adapted, in particular extended, in accordance with the measured values of the device for spectral analysis 8, which in particular comprises the optical waveguide 9 and the spectrometer module 10, and costs and personnel expenditure can be saved.
- critical values e.g. B. when monitoring the measurement results from a control center via staff or in particular from the cloud via automatic programs, maintenance and / or replacement of parts or the complete replacement of the high-voltage switching device 1 can be triggered.
- high-voltage switching devices 1 can include evaluation units and / or data storage units and / or data transmission units, and in particular an Internet connection and / or a radio, for.
- B. Mobile connection can be provided. This enables the processing, storage and / or transfer of the data and a control or regulation, in particular dependent on the measured values of the device for spectral analysis 8.
- the spectrometer module 10 can be arranged in the housing 2, in particular in an area with sufficient installation space. Alter native or in addition, a spectrometer module 10 may be angeord net half of the housing 2 of the high-voltage switching device 1, the optical fiber 9 through the housing z. B. can be guided in particular sealed from a bore from the inside to the outside.
- the spectrometer module 10 can e.g. B. in a switching and / or control cabinet of the high-voltage switching device 1.
- An arrangement of the spectrometer module 10 outside the housing 2 enables simple and inexpensive maintenance and / or reading of the spectrometer module 10, protects the spectrometer module 10 from, for. B. electrical flashovers in the housing 2 and / or before high pressures, temperatures and / or voltages in the housing 2nd
- So z. B. high-voltage circuit breakers can be used as high-voltage switchgear 1, disconnector and / or earth electrode.
- Switching contact pieces, in particular special arc contact pieces 5 can be made of copper or steel, in particular with an erosion-resistant tip, for. B. made of carbon.
- a movable 3 and a fixed 4 nominal current contact piece can be used in a high-voltage circuit breaker or, for. B. two movable nominal current contact pieces.
- a movable 3 and a fixed 6 arcing contact piece can be used in a high-voltage circuit breaker or, for. B. two movable arcing contact pieces.
- a device for spectral analysis 8 comprises e.g. B. an optical waveguide 9 and a spectrometer module 10, wherein on the optical waveguide 9 close to or in the arc 7 received radiation, in particular light radiation, via the Optical waveguide 9 can be transported to the spectrometer module 10 and the spectrum, the intensity of the spectrum and / or the intensity of individual lines removed from the arc 7 and evaluated, ie analyzed.
- High pressures and temperatures therefore do not damage the spectrometer module 10 and the optical waveguide 9 can be designed such that its tip is resistant to high pressures and temperatures.
- a curvature of the tip can permanently adsorb
- layers that are made of products of the plasma settle on top, by suitable choice of material, e.g. B. special glasses, and / or the radius of curvature, especially after the plasma has gone out and the tip has cooled off.
- the optical waveguide 9 can be arranged differently, for. B. on the housing 2, on the contacts 3, 4, 5, 6, on the nozzle 11 and / or in particular near or far from the arc 7, with a clear view of the arc 7 or products, for. B. degradation products of the arc 7.
- the optical waveguide 9 can be tracked, z. B. when the light waveguide 9 burns through the arc 7.
- the spectrometer module 10 comprises, for. B. a spectrometer, which can measure wavelengths and / or intensities of wavelengths in the visible range, infrared and / or UV range. At wavelengths that are not transported by optical fibers, the spectrometer can be in visual contact, e.g. B. can be arranged over a quartz glass window in the housing 2 or with a direct view of the arc 7, without the optical waveguide 9.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018216016.3A DE102018216016A1 (de) | 2018-09-20 | 2018-09-20 | Hochspannungs-Schaltgerät mit einer Vorrichtung und Verfahren zur Spektralanalyse |
| PCT/EP2019/073397 WO2020057955A1 (de) | 2018-09-20 | 2019-09-03 | Hochspannungs-schaltgerät mit einer vorrichtung und verfahren zur spektralanalyse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3827456A1 true EP3827456A1 (de) | 2021-06-02 |
Family
ID=67956730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19769073.8A Withdrawn EP3827456A1 (de) | 2018-09-20 | 2019-09-03 | Hochspannungs-schaltgerät mit einer vorrichtung und verfahren zur spektralanalyse |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3827456A1 (de) |
| DE (1) | DE102018216016A1 (de) |
| WO (1) | WO2020057955A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167277A (zh) * | 2021-12-21 | 2022-03-11 | 沈阳工业大学 | 一种高压开关装置燃弧特性观测系统及方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070001677A1 (en) * | 2003-09-29 | 2007-01-04 | Bernd Adam | Device for detecting contact wear in switching appliances |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3843856A (en) * | 1973-06-04 | 1974-10-22 | Allis Chalmers | Contact for a vacuum switch of single phase alloy |
| JPH0738011B2 (ja) * | 1988-05-16 | 1995-04-26 | 株式会社日立製作所 | 高圧電力機器の異常診断システム |
| DE19608285A1 (de) | 1996-02-23 | 1997-08-28 | Siemens Ag | Hochspannungsfreiluftschalter |
| DE19815537A1 (de) * | 1998-03-31 | 1999-10-07 | Siemens Ag | Hochspannungsgerät mit einer Einrichtung zur Überwachung auf Lichterscheinungen |
| DE102015205388A1 (de) * | 2015-03-25 | 2016-09-29 | Siemens Aktiengesellschaft | Isolierdüse und elektrische Schalteinrichtung mit der Isolierdüse |
-
2018
- 2018-09-20 DE DE102018216016.3A patent/DE102018216016A1/de not_active Ceased
-
2019
- 2019-09-03 EP EP19769073.8A patent/EP3827456A1/de not_active Withdrawn
- 2019-09-03 WO PCT/EP2019/073397 patent/WO2020057955A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070001677A1 (en) * | 2003-09-29 | 2007-01-04 | Bernd Adam | Device for detecting contact wear in switching appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020057955A1 (de) | 2020-03-26 |
| DE102018216016A1 (de) | 2020-03-26 |
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