EP2856486A1 - Arbeitszylinder f?r einen antrieb eines elektrischen leistungsschalters - Google Patents
Arbeitszylinder f?r einen antrieb eines elektrischen leistungsschaltersInfo
- Publication number
- EP2856486A1 EP2856486A1 EP13727806.5A EP13727806A EP2856486A1 EP 2856486 A1 EP2856486 A1 EP 2856486A1 EP 13727806 A EP13727806 A EP 13727806A EP 2856486 A1 EP2856486 A1 EP 2856486A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- working cylinder
- working
- piston rod
- circuit breaker
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3052—Linear spring motors
-
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/008—Actuators other then push button
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/016—Preloading
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/044—High voltage application
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3005—Charging means
- H01H3/301—Charging means using a fluid actuator
Definitions
- the invention relates to a working cylinder for driving an electric circuit breaker, in particular for use in medium-voltage or high-voltage switchgear, comprising a main body.
- circuit breakers are switched only a few times within one year of operation, for example when a short circuit occurs.
- the circuit breakers will be installed for several decades. In that regard, a drive of a circuit breaker must show not only a high instantaneous reliability, but also a low maintenance requirement.
- DE 10 2009 015 881 A1 discloses a hydromechanical drive with a working cylinder which actuates a circuit breaker by means of a piston rod.
- This drive comprises an energy store and a hydraulic device for transmitting energy stored in the energy store.
- drives are known from the prior art, in which the energy is stored for switching in metal springs of a spring accumulator, wherein the hydraulic device should cause a loss and low-wear transmission of energy during the switching process.
- the running surfaces for a piston rod of the working cylinder are usually anodized. This is associated with a high cost and therefore high costs.
- the use of aluminum can cause cavitation damage, which can cause technical problems.
- the invention is therefore an object of the invention to provide a working cylinder for driving an electric circuit breaker, which shows a high operational capability for trouble-free and cost-effective production and can be combined with existing drives technically problem-free.
- the aforementioned working cylinder is characterized in that the base body is made of a first component, namely a cylinder head, and a second component, namely a cylinder body, which are interconnected.
- a separate cylinder body can also be produced separately and virtually independently of the material of the cylinder head. Any running surfaces for piston rods can be processed independently of the cylinder head.
- a working cylinder is relatively easy to produce modular and can be assembled from two independently manufactured components.
- a working cylinder for driving an electric circuit breaker is indicated, which shows a high operational capability for trouble-free and cost-effective production and can be combined with existing drives technically problem-free.
- the Zyiinderkopf is non-positively connected to the cylinder body.
- the two components can be captive and firmly connected.
- the cylinder head and the cylinder body are bolted together. Screw connections are inexpensive and connect the components reversibly releasably together.
- a piston rod is guided in the working cylinder.
- a piston rod a movable contact member of an electrical circuit breaker can be reliably operated.
- the piston rod advantageously has a piston which is in contact with a running surface of the cylinder body.
- a tilt-free and low-friction guidance of the piston rod in the working cylinder is possible.
- the piston rod is in contact with the cylinder head.
- the piston rod at least two points in the working cylinder, namely once in the cylinder body and once in the cylinder head out. As a result, tilting or tilting of the piston rod can be avoided.
- the piston rod is positioned coaxially to the working cylinder and received in a central passage of the working cylinder.
- the piston rod can be easily inserted into the working cylinder from one side.
- a drive for an electrical circuit breaker comprising a mechanical spring accumulator and a hydraulic device for transmitting an energy storable in the spring accumulator, a working cylinder of the type described here.
- the hydraulic device on such a working cylinder.
- Three memory modules a control block, a pressure release lever with spring travel switch, a pump module with a motor, a fuel cap with a guide bushing, a filling or venting connection, an intermediate housing and the cylinder body.
- a stop bolt an overflow valve, at least one check valve, a P-cover, which serves as a guide for a piston rod, various sealing plugs and at least a flange plate.
- the cylinder head is advantageously incorporated instead of a damping ring a contour as a damping ring.
- a part poorer construction is realized, which does not show a movable damping ring.
- the outer contour of the cylinder head is advantageously used as a contact surface for supporting a pressure ring of the spring accumulator.
- Hydraulic interfaces to different components are advantageously created by connecting sockets. This allows hydraulic oil to flow into different components. In the cylinder head itself, the complete volume of the hydraulic oil is advantageously provided.
- a pressure ring On the outer surface of the cylinder body, a pressure ring is advantageously performed. This pressure ring presses on storage piston in a storage module together mechanical springs in the mechanical spring store.
- a bottom plate is advantageously attached to the cylinder body.
- the bottom plate serves as a counter surface for the mechanical springs.
- a connecting bush is arranged between the cylinder head and the cylinder body.
- a channel (alternating pressure) can be connected.
- Fig. 1 is a two-piece working cylinder of a drive for an electric
- Circuit breaker together with a piston rod arranged coaxially in the working cylinder
- Fig. 2 is a sectional view of the working cylinder of FIG. 1, in which it is shown that the piston rod is received and guided in a central passage of the working cylinder
- Fig. 3 is a further sectional view of the working cylinder of FIG. 1, wherein screws are shown, which connect the cylinder head and the cylinder body frictionally with each other.
- Fig. 1 shows a working cylinder 1 for a drive, not shown, of an electric circuit breaker, in particular an electrical high-voltage circuit breaker, comprising a base body 2.
- the base body 2 is constructed in two parts.
- the main body 2 is made of a first component, namely a cylinder head 3, and a second component, namely a cylinder body 4, which are interconnected.
- Fig. 2 shows that the cylinder head 3 is positively connected to the cylinder body 4.
- the cylinder head 3 and the cylinder body 4 are bolted together.
- Fig. 3 shows in a sectional view a preferred embodiment in which four screws 5 are provided.
- a piston rod 7 is guided.
- the piston rod 7 has a piston 8, which is in contact with a running surface 9 of the cylinder body 4.
- the piston rod 7 is also in contact with the cylinder head 3.
- the piston rod 7 is positioned coaxially with the working cylinder 1 and received in a central passage 10 of the working cylinder 1.
- the piston rod 7 runs in the working cylinder 1 up and down.
- a not shown movable contact member of an electric circuit breaker is actuated.
- the cylinder head 3 has a cylindrical recess 11, in which the cylinder body 4 is partially received.
- the cylinder body 4 is designed as a cylindrical component.
- the cylinder head 3 has a stepped outer peripheral surface 12.
Landscapes
- Actuator (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Circuit Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012011130A DE102012011130A1 (de) | 2012-06-05 | 2012-06-05 | Arbeitszylinder für einen Antrieb eines elektrischen Leistungsschalters |
| PCT/EP2013/001615 WO2013182291A1 (de) | 2012-06-05 | 2013-06-03 | Arbeitszylinder f?r einen antrieb eines elektrischen leistungsschalters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2856486A1 true EP2856486A1 (de) | 2015-04-08 |
| EP2856486B1 EP2856486B1 (de) | 2016-04-20 |
Family
ID=48579006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13727806.5A Active EP2856486B1 (de) | 2012-06-05 | 2013-06-03 | Arbeitszylinder für einen antrieb eines elektrischen leistungsschalters |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9837222B2 (de) |
| EP (1) | EP2856486B1 (de) |
| CN (1) | CN104364866B (de) |
| BR (1) | BR112014030122B1 (de) |
| DE (1) | DE102012011130A1 (de) |
| HU (1) | HUE030931T2 (de) |
| MX (1) | MX337995B (de) |
| RU (1) | RU2615745C1 (de) |
| WO (1) | WO2013182291A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2450819A (en) * | 1944-10-02 | 1948-10-05 | Alma E Whelan | Lock controlled switch |
| FR1135122A (fr) * | 1955-11-04 | 1957-04-24 | Jean Louis Gratzmuller | Dispositif de commande hydraulique à contrôle de vitesse, pour disjoncteur |
| US2807140A (en) * | 1956-04-16 | 1957-09-24 | Oilgear Co | Hydraulic transmission |
| US3207871A (en) * | 1961-08-14 | 1965-09-21 | Therm Inc | Digital indicating pressure gage |
| SU147635A1 (ru) * | 1961-09-25 | 1961-11-30 | Л.К. Скурыгин | Быстродействующий автоматический выключатель посто нного тока |
| FR1415615A (fr) * | 1964-08-04 | 1965-10-29 | Perfectionnement aux dispositifs à vérins hydrauliques de commande de disjoncteurs eta. tall. | |
| US4118613A (en) * | 1977-06-27 | 1978-10-03 | General Electric Company | Hydraulically-actuated operating system for an electric circuit breaker |
| DE4104793A1 (de) * | 1991-02-16 | 1992-08-20 | Memminger Iro Gmbh | Schmiereinrichtung zur versorgung mehrerer schmierstellen, insbesondere einer strickmaschine, mit schmiermittel, vorzugsweise oel |
| DE9113366U1 (de) * | 1991-10-28 | 1991-12-12 | ABB Patent GmbH, 6800 Mannheim | Hydraulischer Antrieb |
| DE19637052A1 (de) * | 1996-09-12 | 1998-03-19 | Abb Patent Gmbh | Hydraulischer Antrieb |
| DE60132164T2 (de) | 2000-12-05 | 2009-01-02 | Kabushiki Kaisha Toshiba | Kombinierte Antriebvorrichtung durch Flüssigkeitsdruck |
| DE102009015881A1 (de) | 2009-04-01 | 2010-10-07 | Abb Technology Ag | Hydromechanischer Antrieb für elektrische Leitungsschalter |
-
2012
- 2012-06-05 DE DE102012011130A patent/DE102012011130A1/de not_active Ceased
-
2013
- 2013-06-03 CN CN201380029722.3A patent/CN104364866B/zh active Active
- 2013-06-03 HU HUE13727806A patent/HUE030931T2/en unknown
- 2013-06-03 MX MX2014014852A patent/MX337995B/es active IP Right Grant
- 2013-06-03 EP EP13727806.5A patent/EP2856486B1/de active Active
- 2013-06-03 BR BR112014030122-0A patent/BR112014030122B1/pt active IP Right Grant
- 2013-06-03 RU RU2014153969A patent/RU2615745C1/ru active
- 2013-06-03 WO PCT/EP2013/001615 patent/WO2013182291A1/de not_active Ceased
-
2014
- 2014-12-04 US US14/560,540 patent/US9837222B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013182291A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104364866A (zh) | 2015-02-18 |
| RU2615745C1 (ru) | 2017-04-11 |
| EP2856486B1 (de) | 2016-04-20 |
| DE102012011130A1 (de) | 2013-12-05 |
| WO2013182291A1 (de) | 2013-12-12 |
| US9837222B2 (en) | 2017-12-05 |
| BR112014030122A8 (pt) | 2021-02-23 |
| US20150083563A1 (en) | 2015-03-26 |
| HUE030931T2 (en) | 2017-08-28 |
| HK1203692A1 (en) | 2015-10-30 |
| BR112014030122A2 (pt) | 2017-06-27 |
| CN104364866B (zh) | 2017-03-08 |
| BR112014030122B1 (pt) | 2021-07-27 |
| MX337995B (es) | 2016-03-30 |
| MX2014014852A (es) | 2015-03-05 |
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