WO2006037724A9 - Vorrichtung zur überwachung eines zustandes eines elektrischen schaltgerätes - Google Patents
Vorrichtung zur überwachung eines zustandes eines elektrischen schaltgerätes Download PDFInfo
- Publication number
- WO2006037724A9 WO2006037724A9 PCT/EP2005/054680 EP2005054680W WO2006037724A9 WO 2006037724 A9 WO2006037724 A9 WO 2006037724A9 EP 2005054680 W EP2005054680 W EP 2005054680W WO 2006037724 A9 WO2006037724 A9 WO 2006037724A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching
- status indicator
- state
- switching device
- indicator
- Prior art date
Links
Classifications
-
- 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
- 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"
- H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication
-
- 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
- H01H2001/0021—Camera or endoscope for monitoring contacts, their position or mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
Definitions
- the invention relates to a device for monitoring a state of an electrical switching device with a status indicator, which is covered or released depending on the state of the switching device.
- the ⁇ known switching device is designed as a circuit breaker and includes a housing, a power supply and a load connection. Between the mains connection and the load connection a switchable contact point is arranged. In a triggering of the electrical switching device, a so-called trigger ⁇ cam is operated and there is an opening of the switchable contact point of the known electrical switching device.
- a state indicator is provided. The status indicator is designed in the form of a pivotable rocker. This rocker is pivoted depending on the switching state of the ⁇ known switching device and is either visible through a window or pivoted behind a cover.
- the switchable contact point of the switching device is a force to apply the movement of the state indicator.
- a lightweight construction is selected for the condition indicator. WEI terhin the pivot bearing of the condition indicator is inferior to a frequent switching a greater wear.
- the invention is therefore based on the object to provide a Vorrich ⁇ device for monitoring a state of an electrical switching device having a state indicator, which has a long life and ensures a reli ⁇ permissive display of the switching state.
- the object is achieved in a device of the type mentioned in the present invention that the state indicator remains ⁇ tor during a switching operation at rest.
- the switching operations on electrical switching devices often take place suddenly. Due to a rapid switching operation and vibrations can occur, which extend over the entire switching device. If one selects a status indicator which remains at rest during a switching operation, shock and vibration phenomena can no longer be superposed with a movement of the status indicator. This improves the durability of the condition indicator. Since now the movement of the switching contacts of the switching device is decoupled from an optionally existing movement of the state indicator, the necessary drive energy can be reduced. Characterized the energy storage can be reduced as well as the kinematic chain for transmitting the movement to be dimensioned ge ⁇ ringer.
- a further advantageous embodiment can provide that the status indicator maps the switching state of the electrical switching device. The switching contacts of an electrical switching device are often ⁇ times not directly visible.
- Envelopes such as arc quenching chambers or the like, prevent direct insight. For an operator or user of an electrical switching device, however, it is necessary to detect the switching state. As a result, for example, a reliable determination of a disconnected Kirsabschnit ⁇ tes done.
- tapers to the state indicator comprises a visual axis for reading, which is interrupted due to a driving movement of a kinematic chain for driving a switching contact piece or fingerge ⁇ give.
- a visual axis for reading the state indicator can be dispensed with elaborate design Ausgestal ⁇ lines.
- elements of the kinematic chain as in ⁇ example, linkage, bolts, gears, chains, flaps or the like are moved into the visual axis.
- the associated shift of individual elements can be used to cover or release the status indicator. This ensures that no additional to moving parts or masses are to be introduced into the kinematic system.
- a further advantageous embodiment can provide that the status indicator can be at least partially covered by a switching contact piece of the switching device. If the switching contact pieces are used to cover the state indicator , a very reliable status indication is ensured. Thus, even with a fault, for example, ⁇ bending a lever in the kinematic chain of the drive train always the current switching position of the switching contact pieces are displayed.
- the movable switching contact pieces of a switching contact of the electrical switching device in a view ⁇ axis for reading the status indicator.
- the status indicator is subdivided into a plurality of coverable areas.
- a subdivision of the status indicator can be carried out, for example, by arranging a scaling at which a progression of the switching process can be read off.
- a risk assessment for example in the case of a faulty position or blocking of a movable switching contact piece during a switching operation.
- the status indicator has different areas, which are characterized, for example, by color-different markings, by a coding in the form of letters, numbers, barcodes or the like. This ensures that a real opening of the switching contacts is signaled only after the release be ⁇ certain sections can be ensured.
- theongsin ⁇ dicator can also be segregated into different areas for several movable bare switch contact pieces be divided so that each of the switching contact pieces is a separate area to be covered supplied ⁇ assigns.
- a further advantageous embodiment can provide that the status indicator can be covered by a plurality of switching contact pieces.
- Switch contact pieces is a reliable monitoring mög ⁇ Lich.
- the unreliability of a representative of the switching state of all movable switching contact pieces selected DruckjorStückes can be overcome. Now it is ensured that the state of each switching ⁇ contact piece can be monitored.
- a further advantageous embodiment can provide that the status indicator is arranged within a pressure-gas-tight encapsulating housing.
- Compression-gas-tight encapsulating housings are generally made of an opaque material.
- individual small viewing windows are embedded in the encapsulating housing.
- the viewing axis can run to evaluate the status indicator. Since this visual axis does not have to be bound to specific devices, such as cables and wires, a design revision of the encapsulating must not be taken ⁇ before.
- the status indicator can thereby beispiels- example be fixed to a wall of the encapsulating housing or the wall of the encapsulating housing may be formed as to stand ⁇ indicator itself.
- the state indicator is optically detectable.
- the electrical switching devices may be, for example, disconnectors, earthing switches, combined disconnecting earthing switches, load switches, switch disconnectors or circuit breakers.
- a subdivision of the status indicator into several areas allows a fast and safe reading.
- a further embodiment variant can provide that the status indicator is monitored by an optical sensor, in particular a camera.
- the information readable by the status indicator can be converted and transported in electronic form over long distances.
- a camera used By means of Camera can be a real image of switching contacts and status indicator transmitted to the control room.
- an additional coding can be arranged in the detection field of the optical sensor. This coding can for example be a designation of the switchgear, the switchgear, place or ähnli ⁇ ches. This makes it possible to easily get an overview even with a remote operation or monitoring. This reduces the risk of mistakes.
- the state of the switching contacts can also be diagnosed by means of the optical detection.
- an increased abrasion of material or an increased burn-off of contact areas can be detected.
- An advantageous embodiment may further provide that the status indicator is a planar marking.
- a surface-like marking makes it possible to read the state indicator from a distance easily and reliably. Area-like markings can be easily attached to housing walls. As such, they are inexpensive. Additional display elements are therefore not required.
- FIG. 1 shows the three switching contacts of the electrical
- FIG. 3 shows the three switching contacts of the electrical
- Figure 4 shows the three switching contacts of the electrical
- the figures show an electrical switching device 1.
- the electrical switching device 1 has a first, a second and a third switching contact 2, 3, 4.
- the first switching contact 2 has a first movable switch contact piece 2a so as ⁇ a first counter contact piece 2b.
- the second and the third switching contact 3, 4 each have a movable switching contact piece 3a, 4a and a stationary Ge ⁇ gentitle Sharing 3b, 4b.
- the movable contact pieces 2a, 3a, 4a are bolt-shaped.
- the mating contact pieces 2b, 3b, 4b are tubular.
- Switching contact pieces 2a, 3a, 4a travel into the tubular counter-contact pieces 2b, 3b, 4b during a switch-on operation.
- the movable switching contact pieces 2a, 3a, 4a are movable via a kinematic chain, which has a pivotable lever 5.
- the pivotable lever 5 is pivotable, for example, by means of an electromagnetic drive or a spring-loaded drive.
- the switching device 1 is arranged within an encapsulating housing 6.
- the encapsulating housing 6 is formed as a pressure gas-tight Ge ⁇ housing surrounding the switching contacts 2, 3, 4.
- the interior of the encapsulating 6 is with an under elevated pressure insulating gas, such as SF 6 or N 2 , filled.
- an optical sensor 7 is arranged in the form of a camera.
- the camera 7 is arranged outside the encapsulating housing 6 and looks into the interior of the arrangement through a viewing window.
- the camera 7 detects the shift range of the three be ⁇ wegbaren switching contact pieces 2a, 3a and 4a.
- a status indicator 8 is arranged in the viewing direction of the camera 7 behind the movable switching contact pieces 2a, 3a, 4a lying.
- the state indicator 8 is arranged on the inner wall of the encapsulating housing 6 in the present example.
- the state ⁇ indicator 8 is formed areally and has a plurality of regions.
- the areas are colored on the one hand and on the other hand they are provided with an alphanumeric inscription.
- a viewing axis 9 of the Ka ⁇ mera 7 is directed freely on the status indicator.
- the area marked "OPEN" can be viewed through the camera 7.
- the movable switching contact pieces 2a, 3a, 4a move in the direction of the mating contact pieces 2b, 3b, 4b.
- the viewing axis 9 of the camera is interrupted in the direction of the Ge ⁇ genWallet Publishede 2b, 3b, 4b.Thereby, only individual areas of the state indicator 8 are visible through the camera 7.
- the optical sensor in particular the camera 7, detects the position of the pivotable lever 5 or another part of the kinematic chain and the viewing axis of the camera can be covered by the pivotable lever 5. Then accordingly is also to stand ⁇ indicator 8 align and adjust.
- FIG 4 is a perspective view of the intermediate position of the movable switching contact pieces 2a, 3a, 4a ge shows ⁇ .
- the perspective view corresponds to the viewing axis of the camera 7.
- the already partially covered state indicator 8 can be seen.
- the state indicator 8 can be subdivided into further zones 11, where ⁇ because each of the other zones 11 one of the movable switching contact pieces 2a, 3a, 4a is assigned. This makes it mög ⁇ Lich to check each of the switching contacts on its reliable A ⁇ switchable or off position.
- an additional coding may be provided in the detection area of the camera, which contains, for example, indications of the location, the type of switch, the switchgear, etc.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05789495A EP1794768B1 (de) | 2004-10-01 | 2005-09-20 | Vorrichtung zur überwachung eines zustandes eines elektrischen schaltgerätes |
US11/664,493 US7994444B2 (en) | 2004-10-01 | 2005-09-20 | Apparatus for monitoring the state of an electrical switching device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004048985.8 | 2004-10-01 | ||
DE102004048985A DE102004048985A1 (de) | 2004-10-01 | 2004-10-01 | Vorrichtung zur Überwachung eines Zustandes eines elektrischen Schaltgerätes |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006037724A1 WO2006037724A1 (de) | 2006-04-13 |
WO2006037724A9 true WO2006037724A9 (de) | 2012-11-22 |
Family
ID=35276129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/054680 WO2006037724A1 (de) | 2004-10-01 | 2005-09-20 | Vorrichtung zur überwachung eines zustandes eines elektrischen schaltgerätes |
Country Status (5)
Country | Link |
---|---|
US (1) | US7994444B2 (de) |
EP (1) | EP1794768B1 (de) |
CN (1) | CN101036209A (de) |
DE (1) | DE102004048985A1 (de) |
WO (1) | WO2006037724A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007003169A1 (de) * | 2007-01-22 | 2008-07-31 | Siemens Ag | Verfahren zum Erkennen der Schaltererstellung eines Trennschalters oder eines Erdungsschalters |
CN103065854A (zh) * | 2012-12-24 | 2013-04-24 | 沈阳昊诚电气股份有限公司 | 固体绝缘隔离开关 |
EP2833495A1 (de) * | 2013-08-02 | 2015-02-04 | ABB Technology AG | Gasisolierte Schaltvorrichtung und Kamerasystem zur optischen Überprüfung der Schaltstellung in der Schaltvorrichtung |
KR102289821B1 (ko) * | 2014-10-23 | 2021-08-13 | 삼성전자주식회사 | 수송 장치 및 이를 이용하는 수송 방법 |
US9793068B2 (en) * | 2015-10-13 | 2017-10-17 | Schneider Electric USA, Inc. | Trip indication using adjacent circuit breakers |
CN105679570B (zh) * | 2016-02-26 | 2018-06-15 | 电卫士智能电器(北京)有限公司 | 断路器监测装置、断路器以及断路器监测方法 |
CN107976684B (zh) | 2016-10-25 | 2023-08-04 | 日立能源瑞士股份公司 | 用于监测电路断路器的系统和方法 |
US11776162B2 (en) | 2018-03-14 | 2023-10-03 | Ls Electric Co., Ltd. | Circuit breaker opening/closing assistance apparatus |
EP3573084A1 (de) * | 2018-05-23 | 2019-11-27 | ABB Schweiz AG | Potenzialfreie positionsüberwachung für hochspannungsschalter |
DE102019202362B4 (de) * | 2019-02-21 | 2022-10-13 | Siemens Aktiengesellschaft | Schaltanlage mit einem modularen optischen Kontrollsystem |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB599421A (en) | 1943-07-09 | 1948-03-11 | Hazemeijer Co | Improvements in or relating to enclosed electric switchgear |
DE2107992B2 (de) | 1971-02-19 | 1975-02-27 | Felten & Guilleaume Carlswerk Ag, 5000 Koeln | Stellungsanzeiger für gegeneinander bewegliche Konstruktionselemente |
US4142128A (en) | 1977-04-18 | 1979-02-27 | Tektronix, Inc. | Box-shaped scan expansion lens for cathode ray tube |
FR2388391A1 (fr) * | 1977-04-22 | 1978-11-17 | Merlin Gerin | Dispositif de signalisation pour poste blinde haute-tension |
DE8904138U1 (de) * | 1989-04-04 | 1989-10-19 | Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co, 41844 Wegberg | Schaltzelle, insbesondere gasisolierte, gekapselte Mittelspannungsschaltzelle |
CA2326721C (en) * | 1998-03-27 | 2005-06-28 | Siemens Aktiengesellschaft | High voltage system having at least one device for optically detecting a parameter |
US6080947A (en) | 1998-05-07 | 2000-06-27 | Eaton Corporation | Electrical switching apparatus with operating condition indicators mounted in face plate |
US6107902A (en) | 1998-11-19 | 2000-08-22 | General Electric Company | Circuit breaker with visible trip indicator |
DE19960399B4 (de) * | 1999-09-17 | 2004-09-02 | Elan Schaltelemente Gmbh & Co. Kg | Elektromechanisches Schaltgerät |
-
2004
- 2004-10-01 DE DE102004048985A patent/DE102004048985A1/de not_active Withdrawn
-
2005
- 2005-09-20 CN CNA2005800335273A patent/CN101036209A/zh active Pending
- 2005-09-20 WO PCT/EP2005/054680 patent/WO2006037724A1/de active Application Filing
- 2005-09-20 US US11/664,493 patent/US7994444B2/en not_active Expired - Fee Related
- 2005-09-20 EP EP05789495A patent/EP1794768B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1794768A1 (de) | 2007-06-13 |
CN101036209A (zh) | 2007-09-12 |
US7994444B2 (en) | 2011-08-09 |
WO2006037724A1 (de) | 2006-04-13 |
DE102004048985A1 (de) | 2006-04-06 |
EP1794768B1 (de) | 2013-03-27 |
US20080105524A1 (en) | 2008-05-08 |
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