EP2828874A1 - Verfahren zur prüfung eines gasisolierten elektrischen hochspannungsbetriebsmittels, insbesondere zur prüfung eines sf6-gefüllten hochspannungs-leistungsschalters sowie schaltungsanordnung umfassend wenigstens ein elektrisches hochspannungsbetriebmittel mit einer isoliergasfüllung - Google Patents
Verfahren zur prüfung eines gasisolierten elektrischen hochspannungsbetriebsmittels, insbesondere zur prüfung eines sf6-gefüllten hochspannungs-leistungsschalters sowie schaltungsanordnung umfassend wenigstens ein elektrisches hochspannungsbetriebmittel mit einer isoliergasfüllungInfo
- Publication number
- EP2828874A1 EP2828874A1 EP13706921.7A EP13706921A EP2828874A1 EP 2828874 A1 EP2828874 A1 EP 2828874A1 EP 13706921 A EP13706921 A EP 13706921A EP 2828874 A1 EP2828874 A1 EP 2828874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- operating
- gas
- removal
- control device
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 238000012800 visualization Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims description 14
- 238000005429 filling process Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 58
- 238000002955 isolation Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/167—Circuits for remote indication
Definitions
- Method for testing a gas-insulated high-voltage electrical equipment in particular for testing an SF 6 " filled high-voltage circuit breaker and circuit arrangement comprising at least one high-voltage electrical operating means with an insulating gas filling
- the invention relates to a method for testing a gas-insulated high-voltage electrical equipment, in particular a method for starting such a device after maintenance and recommissioning or as a first commissioning.
- the invention further relates to a circuit arrangement comprising at least one high-voltage electrical operating medium with an insulating gas filling.
- Transducers are used to transform alternating voltages and alternating currents to uniform values that can be detected with measuring instruments.
- a transducer allows galvanic isolation between the test object and the measuring instrument.
- Circuit-breakers are used to maintain rated current permanently and short-circuit overcurrents and short-circuit currents. Circuit breakers are usually used to interrupt high alternating currents.
- Such electrical equipment is often filled with an insulating and quenching gas.
- Suitable extinguishing gas is, for example, SF 6 (sulfur hexafluoride).
- SF 6 sulfur hexafluoride
- a contact separation in a circuit breaker initially leads to an arc between the contacts, which are arranged for example in a filled with insulating Wegzierpol. In the Heidelbergowskipolen the insulating gas is trapped below a predetermined minimum pressure and causes extinction of a resulting arc.
- Both the switchgear poles of circuit breakers and other insulating gas-filled housings of electrical equipment are designed as pressure hulls which have to fulfill certain tightness and strength requirements in order to compensate for the pressure generated by the pressurization and / or by switching operations. to withstand all forces.
- These pressure bodies are often hollow bodies made of porcelain and steel, which, for example, are constantly subjected to an internal overpressure of 8 bar. For example, during switching operations in a circuit breaker, pressure peaks of up to 15 bar may occur above atmospheric pressure. The strength of the material plays a crucial role. When restarting a serviced circuit breaker and during a first commissioning, there is a risk that the switch bursts during the filling process or due to the resulting forces when testing. For the safety of the personnel carrying out the filling of the electrical equipment, it is necessary to fill high-voltage equipment from a safe distance.
- a measuring device for determining the filling amount of an SF 6 gas in an isolation chamber or a switchgear and a corresponding method are known, wherein the method comprises a permanent monitoring of the filling amount of the insulating gas of the equipment.
- a measuring device is provided on the operating means, which has a pressure sensor and a temperature measuring element in an insulating chamber of the equipment.
- the measuring device further comprises a processing device for determining the filling quantity of the gas from the pressure measurement value measured by the pressure sensor and the associated temperature measurement value measured by the temperature measurement element.
- the temperature element and the pressure transducer deliver their measuring signals to the processing device, which processes these signals and outputs a signal corresponding to the filling quantity. This signal can be transmitted by remote data transmission to a remotely located evaluation device.
- a device for pressure monitoring at a Wegzierpol an electrical switching device, which is filled with an insulating gas is from the
- a further unit for monitoring and / or signaling / visualization of operating variables of a gas-insulated switchgear is known, for example, from DE 10 2008 063 682 A1, the monitoring system described there being known.
- An electrical circuit breaker is for example from the
- the known devices for pressure monitoring in the case of protective gas-insulated electrical equipment serve primarily to detect a pressure loss in order, if necessary, to be able to carry out maintenance on the equipment.
- the known state of the art does not take into account the problem of first commissioning or recommissioning of a circuit breaker, possibly even after safe filling.
- the invention is therefore based on the object to provide a method for testing a gas-insulated high-voltage electrical equipment, which is particularly suitable for the initial commissioning or recommissioning of the equipment after maintenance and which bears the above-mentioned problem in particular account.
- the invention is further based on the object to provide a corresponding circuit arrangement.
- a method for testing a gas-insulated electrical high-voltage operating means comprises at least one gas filling or removal by means of a filling or removal device, the monitoring of the filling or removal process by monitoring one or more measures of states and / or changes in state of the filling, and / or the removal device and / or the operating medium and / or a gas storage device, selected from the measured quantities mass, temperature, pressure and flow rate or volume flow and the decommissioning or commissioning of the Radiomitteis for the purpose of checking the same by means of at least one control device and at least one galvanically by the control device a separate operating device, wherein the method comprises a monitoring and visualization of the operating state or switching state of the operating means on the operating device.
- the method according to the invention thus enables both a remote-controlled execution and monitoring of the filling or removal operation of the operating medium with quenching gas or insulating gas, but also a remote commissioning or test circuit of the equipment, wherein a complete electrical isolation of an operating device from a control device or a so-called Automation device is provided.
- a control device or automation device in the context of the invention may be provided, for example, a programmable logic controller for the output of switching commands and for controlling valves and / or fittings.
- a radio link that can be established, for example, via Bluetooth, WLAN, IWLAN or via a GSM network (GPRS or UMTS).
- an initiation and / or the completion of a filling or removal operation is remotely controlled via the control device.
- the control device can be programmed such that a filling operation of the operating medium is terminated when, for example, the gas pressure between a gas storage device and the operating medium, for example the insulating gas chamber of a switchgear pole, is balanced.
- the filling process can be terminated when, for example, in a supply line to the electrical equipment has fallen below a certain volume flow or a predetermined volume has already been enforced.
- the method according to the invention comprises a plausibility check of the filling and / or removal process by comparing a plurality of measured values of states or state changes of the filling device and / or the removal device and / or the operating device and / or the gas storage device.
- This makes it possible to ensure that the filling was successful and there is no leak in the supply line and / or the operating medium and / or the removal device. This can be done for example by pressure and optionally temperature measurement, optionally also at various points, density measurement, flow measurement and weighing to determine the amount of gas removed.
- a feedback to the operating device in the sense that the operating device receives a signal as confirmation of a performed switching operation or a specific switch state.
- a feedback of the operating state of the operating means can be tapped, for example, via a corresponding assignment of the connections to the operating medium. For example, in a circuit breaker, it makes sense to detect the switch position and pass it to the control device or feed back to the operating device.
- the removal or filling process is monitored by means of a volume flow measurement between a gas storage device and the operating medium and is terminated as a function of the determined flow rate.
- the filling process can be monitored via pressure and temperature sensors on the equipment.
- a filling quantity signal can be calculated at a known density of the insulating gas on the basis of a measured gas pressure signal and a measured gas temperature.
- monitoring of the filling process via a weighing device on the gas storage device can take place.
- a gas storage device in the form of one or more gas cylinders may be arranged on a weighing device.
- a scale or weighing device for example, plate-shaped weighing plates are suitable which function by means of strain gauges which are calibrated in a known manner by means of a Wheatstone measuring bridge.
- a circuit arrangement according to the invention comprises at least one high-voltage electrical operating medium with an insulating gas filling, at least one filling and removal device for the Isoliergas spallung, at least one measuring device for monitoring one or more measures of states or changes in state of a gas storage device and / or the filling and removal device and / or the operating means, at least one control device which is coupled to the filling and removal device and with an actuating device for the operating means and a galvanically separated from the control device operating means via which the control device is actuated and the at least one feedback of the executed control commands and the Switching state and / or operating state of the equipment outputs.
- a filling and removal device for the insulating gas filling can be, for example, a valve with one or more solenoid valves, which is arranged in a connecting line between a gas storage device and the operating medium.
- a variant of the circuit arrangement according to the invention is characterized by at least one switchable via the control device valve arrangement, which is arranged between the operating means and the gas storage device.
- a valve arrangement may comprise one or more electrically actuated solenoid valves.
- at least one flow measuring device is provided between the gas storage device and the operating means.
- the flow measuring device may comprise, for example, an ultrasonic flow meter or a mass flow meter according to the Coriolis principle.
- a flow measurement via the speed of a arranged in the gas flow impeller can be done.
- Suitable insulating gas in the context of the invention is, for example, SF 6 (sulfur hexafluoride).
- An expedient variant of the circuit arrangement according to the invention is characterized by at least one weighing device on the gas storage device.
- At least one temperature and / or one pressure sensor are provided on the operating means.
- the circuit arrangement is further characterized by a wirelessly coupled to the controller operating device.
- Both the control device and the operating device can be provided with a mains-independent power supply, but the control device is preferably supplied with emergency power.
- the electrical equipment used is an SF 6 -filled high-voltage
- Circuit breaker provided which comprises a SF 6 -beetzschlagten GmbHmaschinepol whose pressure body or switching chamber housing is made of ceramic.
- the gas connection 6 of the circuit breaker 1 is connected via a supply line 8 to a gas cylinder 9 as a gas storage device.
- a valve with a solenoid valve 10 is arranged, which is connected via a hereinafter referred to as automation unit 11 control device.
- the gas cylinder 9 is on a Weighing unit 12 is arranged, which is connected via a weighing signal line 12a to the automation unit 11.
- the automation unit 11 is further connected via the control lines 7 a, b, c, d, e to a control input 7 of the switching housing 5 of the circuit breaker 1.
- the automation unit 11 is connected to an operating device via a radio link 13, which is only indicated by way of introduction, the radio link 13 ensuring a complete electrical isolation between the radio link 13 and the operating device 14.
- the initiation of a filling process for example, by remote control of the solenoid valve 10 via the operating device 14.
- the solenoid valve 10 is opened, so that the path from the gas cylinder 9 is released into the circuit breaker 1.
- the gas cylinder is placed on the weighing device 12.
- the solenoid valve can be controlled by the automation unit 11, for example via a 24V relay.
- the transmitted from the gas cylinder 9 in the circuit breaker 1 amount of gas can be determined.
- Such a flow volume detection would normally be sufficient to determine the filling of SF ⁇ .
- the weighing device 12 as well as an additional temperature sensor 15 and an additional pressure sensor 16 are only for checking and are so far redundant.
- the filling quantity can be determined by calculation using the gas equation; it is likewise possible to determine via the weighing signal line 12a which residual quantity is still contained in the gas cylinder 9.
- the filling process can be completed and completed by the automation unit 11 by the solenoid valve 10 switching is controlled.
Landscapes
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012005463A DE102012005463A1 (de) | 2012-03-20 | 2012-03-20 | Verfahren zur Prüfung eines gasisolierten elektrischen Hochspannungsbetriebsmittels, insbesondere zur Prüfung eines SF6- gefüllten Hochspannungs-Leistungsschalters sowie Schaltungsanordnung umfassend wenigstens ein elektrisches Hochspannungsbetriebmittel mit einer Isoliergasfüllung |
PCT/EP2013/000442 WO2013139421A1 (de) | 2012-03-20 | 2013-02-15 | Verfahren zur prüfung eines gasisolierten elektrischen hochspannungsbetriebsmittels, insbesondere zur prüfung eines sf6-gefüllten hochspannungs-leistungsschalters sowie schaltungsanordnung umfassend wenigstens ein elektrisches hochspannungsbetriebmittel mit einer isoliergasfüllung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2828874A1 true EP2828874A1 (de) | 2015-01-28 |
EP2828874B1 EP2828874B1 (de) | 2017-04-12 |
Family
ID=47757549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13706921.7A Active EP2828874B1 (de) | 2012-03-20 | 2013-02-15 | Verfahren zur prüfung eines gasisolierten elektrischen hochspannungsbetriebsmittels, insbesondere zur prüfung eines sf6-gefüllten hochspannungs-leistungsschalters sowie schaltungsanordnung umfassend wenigstens ein elektrisches hochspannungsbetriebmittel mit einer isoliergasfüllung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2828874B1 (de) |
DE (1) | DE102012005463A1 (de) |
WO (1) | WO2013139421A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103594276B (zh) * | 2013-11-26 | 2016-04-13 | 国家电网公司 | 六氟化硫断路器气体智能补偿装置 |
DE102014115718A1 (de) * | 2014-10-29 | 2016-05-04 | Abb Technology Ag | System und Verfahren zur Sicherstellung eines Mischverhältnisses eines Isoliergasgemisches für ein gasisoliertes elektrisches Hochspannungsgerät |
CN104534267A (zh) * | 2014-12-26 | 2015-04-22 | 国家电网公司 | 断路器在线补气检测装置 |
CN107102258B (zh) * | 2017-04-18 | 2023-08-15 | 国网河北省电力有限公司衡水供电分公司 | 密度继电器校核装置 |
CN110514525B (zh) * | 2019-08-29 | 2022-04-22 | 江苏神马电力股份有限公司 | 一种内压力对比试验装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934454A (en) * | 1974-12-04 | 1976-01-27 | Allis-Chalmers Corporation | Gas conditioner and analyzer |
DE3828015A1 (de) * | 1988-08-18 | 1990-03-01 | Sachsenwerk Ag | Verfahren zur ueberwachung des isoliergases von druckgasisolierten schaltanlagen und steuereinrichtung zur durchfuehrung dieses verfahrens |
US5388451A (en) * | 1993-07-30 | 1995-02-14 | Consolidated Electronics Inc. | High voltage transmission switching apparatus with gas monitoring device |
CN1211351A (zh) * | 1996-01-31 | 1999-03-17 | 西门子公司 | 带外壳的设备 |
US7257496B2 (en) * | 2005-07-28 | 2007-08-14 | Avistar, Inc. | Method and apparatus for monitoring SF6 gas and electric utility apparatus |
DE102005047740A1 (de) * | 2005-09-29 | 2007-04-05 | Siemens Ag | Energieverteilungsgerät, insbesondere Leistungsschalter |
DE102006058270A1 (de) * | 2006-12-08 | 2008-07-03 | Abb Technology Ag | Gasisolierte Schaltanlage |
DE102007016720A1 (de) | 2007-04-07 | 2008-10-09 | Areva Energietechnik Gmbh | Elektrisches Schaltgerät |
DE102008063682A1 (de) | 2008-12-19 | 2010-06-24 | Abb Technology Ag | Einheit zur Überwachung und/oder Signalisierung/Visualisierung von Betriebsgrößen einer gasisolierten Schaltanlage |
US8973423B2 (en) | 2009-01-30 | 2015-03-10 | Wika Alexander Wiegand Gmbh & Co. Kg | Measuring device for determining the fill quantity of an SF6 gas in an isolated chamber or a switchgear, and corresponding method |
DE102010013877B4 (de) | 2009-05-20 | 2014-07-17 | Abb Technology Ag | Elektrischer Leistungsschalter und Schaltfeld mit Leistungsschalter |
-
2012
- 2012-03-20 DE DE102012005463A patent/DE102012005463A1/de not_active Ceased
-
2013
- 2013-02-15 WO PCT/EP2013/000442 patent/WO2013139421A1/de active Application Filing
- 2013-02-15 EP EP13706921.7A patent/EP2828874B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013139421A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2828874B1 (de) | 2017-04-12 |
DE102012005463A1 (de) | 2013-09-26 |
WO2013139421A1 (de) | 2013-09-26 |
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