EP3131106A1 - Locking device for a high-voltage switchgear installation - Google Patents
Locking device for a high-voltage switchgear installation Download PDFInfo
- Publication number
- EP3131106A1 EP3131106A1 EP16181670.7A EP16181670A EP3131106A1 EP 3131106 A1 EP3131106 A1 EP 3131106A1 EP 16181670 A EP16181670 A EP 16181670A EP 3131106 A1 EP3131106 A1 EP 3131106A1
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- EP
- European Patent Office
- Prior art keywords
- tilting
- locking
- bar
- rocker
- switching devices
- 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.)
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- 238000009434 installation Methods 0.000 title description 2
- 230000007935 neutral effect Effects 0.000 claims description 24
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 244000027321 Lychnis chalcedonica Species 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 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
- 238000005259 measurement Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
- H01H27/06—Key inserted and then turned to effect operation of the switch
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- 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
- H01H3/227—Interlocked hand- and power-operating mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/44—Driving mechanisms, i.e. for transmitting driving force to the contacts using Geneva movement
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
- H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
-
- 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
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/018—Application transfer; between utility and emergency power supply
Definitions
- the present invention relates to a device for locking an access for the operation of two switching devices of a high-voltage switchgear according to the introductory part of patent claim 1.
- the high voltage switchgear includes an actuator which transmits driving force from a drive shaft to a contact assembly of a first and a contact assembly of a second of the two switching devices. Both switching devices have different functions and are generally suitable for connecting or disconnecting electroless or virtually de-energized circuits. Such switching devices are often used as a circuit breaker earthing switch system on the transformer side or as a start-up switch grounding system on the generator side of a high voltage switchgear, which is designed as a generator switch system and then typically operated at rated voltages between a few kV and 70 to 80 kV. However, they can also be used in gas-insulated or outdoor switchgear installations with nominal voltages of up to 1000 kV. The generally single-phase formed switch systems are mechanically interconnected when used in multi-phase high-voltage switchgear coupling rods.
- the two switching devices can assume three switching positions. In a neutral position, both switching devices are open, in a first active position, the first switching device, such as a circuit breaker, closed and the second, for example, a grounding switch, opened and in the second active position, the first switching device is open and the second closed.
- the high-voltage switchgear requires a locking device, which blocks access to the operation of the two switching devices, if suburb, for example by means of a hand crank, are switched should.
- a locking device for generator switch is in EP 1 933 345 B1 described.
- This device comprises two ratchet wheels arranged on an actuating shaft, one of which can be blocked by turning the shaft clockwise with a first two pawls and the other with a counterclockwise rotation by means of the second pawl. An access to actuation of a generator switch can be locked in this way.
- a further actuator with a drive shaft which is rotated in a first active position of the two switching devices by a base angle clockwise and in a second active position of the two switching devices to the base angle in the counterclockwise direction relative to the angular position of the drive shaft in a neutral position of the two switching devices is in the German patent application file number filed on 7 July 2015 10 2915 110 971.9 described.
- a high voltage switchgear in which an actuator of the type mentioned above can be used, describes the product brochure "Generator Circuit Breaker Systems HECS" from. ABB Switzerland AG, Zurich / Switzerland (1HC0072302 E02 / AA09).
- This high-voltage switchgear is designed as a generator switch system and has on the transformer side of a load-switching pole of a generator switch a circuit breaker earthing switch system and on the generator side of the switch pole a start-up switch grounding switch system.
- the object is to provide a locking device of the type mentioned, which is simple and compact and increases the reliability of a equipped with this locking device high-voltage switchgear.
- a device for locking an access for the operation of two switching devices of a high-voltage switchgear by means of a drive force to the two switching devices transmitting drive shaft which in a first active position of the two switching devices by a base angle clockwise and in a second active position of the two Switching devices is rotated by the base angle counterclockwise relative to their angular position in a neutral position of the two switching devices.
- This locking device has a locking disk attached to the drive shaft, a tilting rocker assembly comprising at least four rocker arms and a slide, wherein the slide suburb is feasible in two positions, of which the first releases an access for the operation suburb and an access for the operation of the Remote blocks and the second blocked the access for the local operation and the access for the remote control releases, which can engage in the first position of the slide a first rocker bar in the first active position and a second rocker bar in the second active position in the lock washer depending on the location and in the neutral position, a third and a fourth rocker bar can engage in the lock washer and wherein the slider in its second position blocks the first and the second rocker bar.
- the locking device according to the invention is simple and compact and can be retrofitted with little effort in the high-voltage switchgear.
- the locking device allows trained, authorized personnel suburb access for a manual operation of the two switching devices resp. to lock or unlock the access for actuation of the two switchgear by means of motors controlled by a remote control room. It has, with the slide on one side and the rocker bar assembly and the lock washer on the other side on two independently operable mechanical components, but cooperate in the operation of the high-voltage switchgear during a locking process or an unlocking process.
- By independently operating the slide and the tilting pad assembly can be activated with the slide suburb access for remote operation or for the local operation of the two switching devices or blocked.
- the two switching devices can be unlocked with the rocker arm assembly suburb, manually placed with a hand crank in the neutral position or in one of the two active positions and then locked with the rocker arm assembly and the locking disc. Since this only simple and robust mechanical components, such as the slide, the locking washer and the tilting bolt assembly are needed, the locking device according to the invention in a simple and compact design is characterized by a high degree of ease of use and high reliability.
- the slide and the four tilting bars can each be rotatably mounted in one of five locks guided by a housing wall onto an operating side of the locking device.
- the slider can be guided from the first to the second by turning a key inserted in the associated lock and from the second to the first position by rotating it counterclockwise. After removing the key, the slider can be locked in the first or second position.
- Each of the four rocker bars can be guided by turning a key inserted into the associated lock and pulling it into a closed position, in which the rocker bar engages the locking disk to form a positive fit, and by reinserting the key and rotating it counterclockwise into an open position in which the rocker bar is out of engagement with the lock washer, each of the four rockers being locked in the closed position after removal of the key.
- the slider On the side facing away from the operating side of the housing wall, the slider may have a tie with two edge recesses and the first resp. the second rocker bar can each one provided with an edge recess first resp. have second circular disc, wherein in the second position of the slider, the tie is retracted to form positive locking in the edge recess of the first and the edge recess of the second circular disc, and wherein in the first position of the slider, the two edge recesses of the tie a blockage of the first resp. pick up the second rocker bar.
- the slider may have an arm which, in the second position of the slider, turns on a switching element which serves to turn on and off a power supply for remote operation of the system.
- the locking disc can have recesses and when locking can engage to form positive engagement in the first active position of the first tilting block and in the second active position of the second tilting block in a first of the recesses and can in the neutral position of the third and the fourth tilting block in a second of these recesses intervention.
- the third and the fourth tilting bar can be acted upon against its direction of rotation from the open to the closed position with a biasing force.
- the Biasing force can be applied by two torsion springs, with one end of at least one of the two springs fixed and the other end held on one of the two rocker bars.
- the biasing force prevents an uncontrolled, typically caused by vibrations, intervention of the two tilting blocks the second recess of the lock washer. Accordingly, the two rocker bars only remain in positive engagement with the lock washer when the keys are removed from the associated locks.
- the closing disc can be arranged between two fixed plates oriented perpendicular to the shaft and penetrated by the shaft.
- both plates at least four openings may be formed such that when locking in the first active position, a tiltable engagement body of the first tilting bar by a first of the at least four openings and in the second active position a tiltable engagement body of the second tilting bar by a second of the at least four openings respectively is performed with the closing disc to form positive engagement and in the neutral position, a tiltable engagement body of the third tilting bar are guided by a third and a tiltable engagement body of the fourth tilting bar through a fourth of the at least four openings to form positive engagement with the closure disc.
- Each of the two plates may have four openings which are arranged mirror-symmetrically on both plates to form four pairs of openings, wherein when locking the engagement body at least one of the four tilting block is guided to form the positive connection with the closure disc through at least one of the four pairs.
- At least one of the two plates can be integrated in a U-profile having body having two attached to this plate legs.
- a rotatably mounted on the operating side portion of at least one of the four rocker arms can be guided by at least one of the two legs and rotatably supported on both legs.
- the invention also relates to a high-voltage switchgear with at least one locking device according to one of claims 1 to 12, which system is designed as a generator switch system and can be installed between a generator and a transformer in a multi-phase high-voltage network and on the Transformer side of a load-switching Generatorschalterpols a Trennschalterpol and a grounding switch or which is designed as a generator switch system and can be installed between a generator and a transformer in a multi-phase high-voltage network and on the generator side of a load-switching Generatorschalterpols pole of a start-up switch and a grounding switch.
- FIG.1 single phase shown multiphase generator switch system shows only one of several largely identically designed switch system poles P, which are aligned parallel to each other and to a horizontally guided axis A.
- the poles are arranged in a horizontally extended plane and are connected in the course of an axis-aligned generator discharge line GA between a generator G of a power plant and a transformer TR of a high-voltage transmission network.
- the illustrated pole P is formed in a single-phase encapsulated manner and has an electrically conductive encapsulation K guided to ground E and filled with ambient air.
- the encapsulation K accommodates a phase conductor L guided parallel to the axis A, in which a switch pole GP of a polyphase generator switch and a switch pole TP of a polyphase disconnector are connected in series.
- a connection point of the phase conductor L located between a generator-side input of the pole P and the generator switch pole GP is connected to a power connection of a switch pole SP of a multiphase start-up switch whose other Power connection with a arranged outside the enclosure K start-up device, typically for a gas turbine, is connected.
- the encapsulation takes, among other components, such as overvoltage protection devices and current and voltage converter, two grounding ES1 and ES2, of which one, namely ES1, a generator-side power connector and the other, namely ES2, a transformer-side power connector of the system pole P when closing electrically conductive with the encapsulation K and thus also connects to earth E.
- a switch system provided on the generator side of the load-switching switch pole GP has the switch pole SP of the multi-phase start switch and the ground switch ES1
- a switch system provided on the transformer side has the switch pole TP of the multiphase disconnector and the ground switch ES2.
- Each of the two switch systems has a device for actuating a contact arrangement of the switch pole SP resp. TP and the associated grounding switch ES1 resp. ES2 up.
- One of these two devices will be discussed below for the switch system including the two switches TP and ES2.
- a similarly constructed second of these two devices is suitable to actuate the contact arrangements of the switch pole SP and the grounding switch ES1 analog.
- the actuator allows only a neutral position and two active positions. In the neutral position, both switches are opened, whereas in a first of the two active positions of the earthing switch ES1 resp. ES2 closed and the switch SP resp. TP is open and in the second active position of the earthing switch ES1 resp. ES2 open and the switch pole SP resp. TP is closed.
- the actuating device is designed so that a simultaneous closure of the two switches SP and ES1 resp. TP and ES2 is excluded.
- this device has a rotatable about an axis A drive shaft 10 to which an angle lever with two a base angle ⁇ including lever arms 12 and 13 is attached.
- the shaft 10 transmits force via a lever arm 12 containing lever mechanism 20 to a contact arrangement of the switch pole TP respectively. via a lever arm 13 containing the lever mechanism 30 to a contact arrangement of the grounding switch ES2.
- the shaft 10 is coupled to a stepper gear 40 designed as a Maltese cross gear.
- the Maltese Cross Gear has one of a drive 41 in the clockwise or counterclockwise rotatable drive pulley 42 with a crank pin 45 and a tie 46 and a seated on the shaft 10 Nutenrad 43 with the tie 46 matching, from Figure 3 apparent recesses 461, 462 and 463.
- the Figure 3 shows that in the Nutenrad 43 two radially aligned grooves 441, 442 are formed, which are arranged rotated by the predetermined base angle ⁇ in the circumferential direction of the primary shaft 10 against each other.
- the base angle is typically between 70 and 110 °.
- apparent position of the Nutenrads 43 is the Maltese cross gear in the neutral position in which the two switching devices TP and ES2 are open.
- the crank pin 45 of the drive pulley 42 is then located outside the two grooves 441, 442.
- the resting on the tie 46 recess 461 secures the neutral position against inadvertent rotation of the shaft 10.
- the actuating device described above is generally actuated by a remote control room and therefore has an electrical connection to the control room suitable for the transmission of power and electrical signals.
- This connection is used primarily for the transmission of power to operate the electric motors for opening and closing the contact arrangements of the two switching devices and the transmission of status, measurement and Control signals.
- the force required in such a remote operation is like Fig.2 can be seen from the drive 41 via a worm gear to the drive wheel 42 of the Maltese cross transmission 40 transmitted.
- the power can also be transferred on site with a hand crank 47 on the actuator.
- the two switching devices are brought into the neutral position or in one of the two active positions.
- the locking device includes a rocker bar assembly 50 including 4 tilting bars 51, 52, 53, 54, each having a rotatably mounted portion 500 and an engagement body 501 attached to that portion, cooperating with the rocker latch assembly and on the drive shaft 10 fastened lock washer 60, arranged on a housing wall operating side 70 and one only from the FIGS. 4 . 9 and 10 apparent slide 80.
- the slider 80 is rotatably supported in a guided from the operating side 70 through the housing wall lock 75 in the interior of the locking device and can - as in the FIGS. 9 and 10 shown - occupy two positions. These two locations can suburb by plugging one out Figure 4 apparent key 700 in a run through the operating page 70 lock 75 and turning the key can be achieved.
- the slider 80 is in a first of the two positions. In this position the access for the local control is enabled and the access for the remote control is blocked. Trained, authorized personnel can therefore in this position of the slide 80 with the help of Fig.2 Manual crank 47 manually set the first active position, the second active position or the neutral position of the two switching devices and lock each of the three positions with the tilting mirror device 50 and the locking disc 60.
- the rocker bar 51 engages in the first active position and the rocker bar 52 in the second active position in the lock washer 60 and engage in the neutral position, the rocker bar 53 and 54 in the lock washer 60 a. Is the deducted key 75 in the possession of a person in the potential danger area, it is ensured that the local control can not be reset by a third party to remote control.
- the slider 80 is in a second position in which the access for the on-site operation is blocked and the access for the remote control is released, the sub-key 75 for the slider stuck in this position and can not be deducted.
- the slide 80 blocks the two rocker bars 51 and 52, by forming a positive locking with a retaining bow 81 into a circular disk 511 provided with an edge recess, respectively. 521 of the rocker bar 51 respectively. 52 engages, thereby avoiding unwanted manual operation of the two switching devices in remote operation.
- the slider 80 further includes an arm 84 which extends in his Figure 10 apparent second position, a switching element 85 which turns on and off a through an opening 76 (FIG. Figure 9 ) Power supply for remote operation of the system is used.
- the four tilting bars 51, 52, 53 and 54 are each rotatably mounted in one of four guided through the housing wall on the operating side 70 locks 71, 72, 73, 74.
- Each of the four rocker bars can by turning a key inserted into the associated lock, for example 71, 700 in a closed position in which the rocker bar, here 51, engages with its engagement body 501 to form a positive fit in the washer 60, and by opposing turning in an open position in which the rocker bar, here 51, out of engagement with the locking disk 60, are performed.
- the associated tilting bar, here tilting bar 51 is blocked in the closed or open position.
- the particular off Figure 4 apparent locking disk 60 has two recesses 61 and 62.
- the recess 61 engages when locking the access for manual operation of the switching devices in the first active position of the tilting pad 51 and in the second active position of the tilting block 52 to form positive engagement with the lock washer 60 a.
- the two rocker arms 53 or 54 can engage with the lock washer 60 in the recess 62, regardless of the operating position of the key 73 and 74.
- each of the two plates 55 resp. 56 integrated in a U-profile body, the two to the plate 55, respectively. 56 attached legs 552 resp. 562 has.
- the rotatably mounted on the operating side 70 portion 500 of the two tilting bow 51 and 52 resp. 53 and 54 is at least one of the two legs 552 resp. 562 out and rotatably mounted on both legs.
- the two rocker arms 53 respectively. 54 are biased against their direction of rotation of the open in the closed position with a biasing force, which is applied by two torsion springs 531 and 541.
- Figure 6 shows that to achieve the bias one end of the torsion spring 541 is fixedly held on the leg 552 and the other end on the tilting bar 54.
- the biasing force therefore prevents an uncontrolled, caused for instance by vibration engagement of the two tilting bars 53 and 54 in the recess 62 of the locking disc 60. Therefore, the tilting pad 53 and 54 remain only in positive engagement with the locking disc when the keys 700 of the associated locks 73 and 74 are deducted.
- operating state blocks the locking device in the neutral position of the two switching devices, such as TP and ES2, the access for the operation of the two switching devices.
- the slider is in the off Figure 9 apparent first position in which the slider 80 access for the remote operation by opening the switching element 85, ie by interrupting the Power connection to the control room, has blocked and block the two rockers 53 and 54 by engaging in the recess 62 access to the manual operation of the two switching devices TP and ES2.
- the locking device according to the invention is not limited to an encapsulated generator switch system which can be installed between a generator of a power plant and a transformer of a high voltage network, it can also be used in another switch system, for example a gas-insulated metal-enclosed high-voltage switchgear.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Die Vorrichtung dient dem VerriegeIn eines Zugangs für die Betätigung zweier Schaltgeräte einer Hochspannungsschaltanlage mit Hilfe einer Antriebskraft auf die beiden Schaltgeräte übertragenden Antriebswelle (10). Um die Betriebssicherheit der Hochspannungsschaltanlage mit geringem Aufwand zu erhöhen, weist diese Verriegelungsvorrichtung eine an der Antriebswelle (10) befestigte Schliessscheibe (60) auf sowie eine mindestens vier Kippriegel (51, 52, 53, 54) enthaltende Kippriegelanordnung (50) und einen Schieber (80). Der Schieber ist Vorort in zwei Positionen führbar, von denen die erste einen Zugang für die Betätigung Vorort freigibt und einen Zugang für die Betätigung aus der Ferne blockiert und die zweite den Zugang für die Vorortbetätigung blockiert und den Zugang für die Fernbetätigung freigibt.The device is used to VerriegeIn an access for the operation of two switching devices of a high-voltage switchgear by means of a driving force on the two switching devices transmitting drive shaft (10). In order to increase the operational safety of the high-voltage switchgear with little effort, this locking device has a lock washer (60) fastened to the drive shaft (10) and a rocker arm arrangement (50) containing at least four tilting arms (51, 52, 53, 54) and a slide ( 80). The slider can be placed in two locations on the ground, the first of which provides access for on-site operation and blocks access for remote operation, and the second blocks access for on-the-spot operation and provides access for remote operation.
Description
Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Verriegeln eines Zugangs für die Betätigung zweier Schaltgeräte einer Hochspannungsschaltanlage nach dem einleitenden Teil von Patentanspruch 1.The present invention relates to a device for locking an access for the operation of two switching devices of a high-voltage switchgear according to the introductory part of patent claim 1.
Die Hochspannungsschaltanlage enthält eine Betätigungsvorrichtung, welche Antriebskraft von einer Antriebswelle auf eine Kontaktanordnung eines ersten und eine Kontaktanordnung eines zweiten der beiden Schaltgeräte überträgt. Beide Schaltgeräte weisen unterschiedliche Funktion auf und sind im Allgemeinen geeignet, stromlose oder nahezu stromlose Stromkreise zu verbinden oder aufzutrennen. Solche Schaltgeräte werden häufig als Trennschalter-Erdungsschalter-System auf der Transformatorseite oder als Anfahrschalter-Erdungsschalter-System auf der Generatorseite einer Hochspannungsschaltanlage eingesetzt, die als Generatorschaltersystem ausgebildet ist und dann typischerweise bei Nennspannungen zwischen einigen kV und 70 bis 80 kV betrieben wird. Sie können aber auch in gasisolierten oder in Freiluftschaltanlagen mit Nennspannungen von bis zu 1000 kV eingesetzt werden. Die im allgemeinen einphasig ausgebildeten Schaltersysteme sind beim Einsatz in mehrphasigen Hochspannungsschaltanlagen durch Koppelstangen mechanisch miteinander verbunden.The high voltage switchgear includes an actuator which transmits driving force from a drive shaft to a contact assembly of a first and a contact assembly of a second of the two switching devices. Both switching devices have different functions and are generally suitable for connecting or disconnecting electroless or virtually de-energized circuits. Such switching devices are often used as a circuit breaker earthing switch system on the transformer side or as a start-up switch grounding system on the generator side of a high voltage switchgear, which is designed as a generator switch system and then typically operated at rated voltages between a few kV and 70 to 80 kV. However, they can also be used in gas-insulated or outdoor switchgear installations with nominal voltages of up to 1000 kV. The generally single-phase formed switch systems are mechanically interconnected when used in multi-phase high-voltage switchgear coupling rods.
Die beiden Schaltgeräte können drei Schaltstellungen einnehmen. In einer Neutralstellung sind beide Schaltgeräte geöffnet, in einer ersten Aktivstellung ist das erste Schaltgerät, beispielsweise ein Trennschalter, geschlossen und das zweite, beispielsweise ein Erdungsschalter, geöffnet und in zweiten Aktivstellung ist erste Schaltgerät geöffnet und das zweite geschlossen. Um zu verhindern, dass eine dieser drei Schaltstellungen aktiviert wird, falls die beiden Schaltgeräte eine der verbleibenden zwei Schaltstellungen einnehmen, benötigt die Hochspannungsschaltanlage eine Verriegelungsvorrichtung, welche den Zugang zur Betätigung der beiden Schaltgeräte blockiert, falls Vorort, etwa mit Hilfe einer Handkurbel, geschaltet werden soll.The two switching devices can assume three switching positions. In a neutral position, both switching devices are open, in a first active position, the first switching device, such as a circuit breaker, closed and the second, for example, a grounding switch, opened and in the second active position, the first switching device is open and the second closed. To prevent one of these three switch positions is activated, if the two switching devices occupy one of the remaining two switching positions, the high-voltage switchgear requires a locking device, which blocks access to the operation of the two switching devices, if suburb, for example by means of a hand crank, are switched should.
Eine Verriegelungsvorrichtung für Generatorschalter ist in
Vorrichtungen, welche Antriebskraft von einer im Uhrzeiger- oder im Gegenuhrzeigersinn drehbaren Antriebswelle auf eine Kontaktanordnung eines ersten und eine Kontaktanordnung eines zweiten Schaltgeräts einer Hochspannungsschaltanlage übertragen, sogenannte Dreistellungsantriebe, sind beschrieben in
Bei den beiden erstgenannten Betätigungsvorrichtungen (
Bei der letztgenannten Betätigungsvorrichtung (
Eine weitere Betätigungsvorrichtung mit einer Antriebswelle, welche in einer ersten Aktivstellung der beiden Schaltgeräte um einen Basiswinkel im Uhrzeigersinn und in einer zweiten Aktivstellung der beiden Schaltgeräte um den Basiswinkel im Gegenuhrzeigersinn verdreht ist gegenüber der Winkelposition der Antriebswelle in einer Neutralstellung der beiden Schaltgeräte, ist in der am 7. Juli 2015 eingereichten deutschen Patentanmeldung Aktenzeichen
Eine Hochspannungsschaltanlage, in der eine Betätigungsvorrichtung der eingangs genannten Art einsetzbar ist, beschreibt die Produktbroschüre "Generator Circuit-Breaker Systems HECS" der Fa. ABB Schweiz AG, Zürich/Schweiz (1HC0072302 E02/AA09). Diese Hochspannungsschaltanlage als Generatorschaltersystem ausgebildet und weist auf der Transformatorseite eines lastschaltenden Pols eines Generatorschalters ein Trennschalter-Erdungsschalter-System und auf der Generatorseite des Schalterpols ein Anfahrschalter-Erdungsschalter-System auf.A high voltage switchgear, in which an actuator of the type mentioned above can be used, describes the product brochure "Generator Circuit Breaker Systems HECS" from. ABB Switzerland AG, Zurich / Switzerland (1HC0072302 E02 / AA09). This high-voltage switchgear is designed as a generator switch system and has on the transformer side of a load-switching pole of a generator switch a circuit breaker earthing switch system and on the generator side of the switch pole a start-up switch grounding switch system.
Der Erfindung, wie sie in den Patentansprüchen angegeben ist, liegt die Aufgabe zugrunde, eine Verriegelungsvorrichtung der eingangs genannten Art zu schaffen, welche einfach und kompakt aufgebaut ist und die Betriebssicherheit einer mit dieser Verriegelungsvorrichtung ausgerüsteten Hochspannungsschaltanlage erhöht.The invention, as indicated in the claims, the object is to provide a locking device of the type mentioned, which is simple and compact and increases the reliability of a equipped with this locking device high-voltage switchgear.
Gemäss der vorliegenden Erfindung wird eine Vorrichtung zum Verriegeln eines Zugangs für die Betätigung zweier Schaltgeräte einer Hochspannungsschaltanlage mit Hilfe einer Antriebskraft auf die beiden Schaltgeräte übertragenden Antriebswelle bereitgestellt, welche in einer ersten Aktivstellung der beiden Schaltgeräte um einen Basiswinkel im Uhrzeigersinn und in einer zweiten Aktivstellung der beiden Schaltgeräte um den Basiswinkel im Gegenuhrzeigersinn gegenüber ihrer Winkelposition in einer Neutralstellung der beiden Schaltgeräte verdreht ist.According to the present invention, a device for locking an access for the operation of two switching devices of a high-voltage switchgear by means of a drive force to the two switching devices transmitting drive shaft is provided which in a first active position of the two switching devices by a base angle clockwise and in a second active position of the two Switching devices is rotated by the base angle counterclockwise relative to their angular position in a neutral position of the two switching devices.
Diese Verriegelungsvorrichtung weist eine an der Antriebswelle befestigte Schliessscheibe, eine mindestens vier Kippriegel enthaltende Kippriegelanordnung sowie einen Schieber auf, wobei der Schieber Vorort in zwei Positionen führbar ist, von denen die erste einen Zugang für die Betätigung Vorort freigibt und einen Zugang für die Betätigung aus der Ferne blockiert und die zweite den Zugang für die Vorortbetätigung blockiert und den Zugang für die Fernbetätigung freigibt, wobei in der ersten Position des Schiebers ein erster Kippriegel in der ersten Aktivstellung und ein zweiter Kippriegel in der zweiten Aktivstellung in die Schliessscheibe abhängig von der Vorortstellung eingreifen kann und in der Neutralstellung ein dritter und ein vierter Kippriegel in die Schliessscheibe eingreifen können und wobei der Schieber in seiner zweiten Position den ersten und den zweiten Kippriegel blockiert.This locking device has a locking disk attached to the drive shaft, a tilting rocker assembly comprising at least four rocker arms and a slide, wherein the slide suburb is feasible in two positions, of which the first releases an access for the operation suburb and an access for the operation of the Remote blocks and the second blocked the access for the local operation and the access for the remote control releases, which can engage in the first position of the slide a first rocker bar in the first active position and a second rocker bar in the second active position in the lock washer depending on the location and in the neutral position, a third and a fourth rocker bar can engage in the lock washer and wherein the slider in its second position blocks the first and the second rocker bar.
Die Verriegelungsvorrichtung nach der Erfindung ist einfach und kompakt aufgebaut und kann mit geringem Aufwand auch nachträglich in die Hochspannungsschaltanlage eingebaut werden. Die Verriegelungsvorrichtung ermöglicht geschultem, autorisiertem Personal Vorort den Zugang für eine manuelle Betätigung der beiden Schaltgeräte resp. den Zugang für eine Betätigung der beiden Schaltgeräte mit Hilfe von Motoren, die von einer entfernt gelegenen Schaltwarte angesteuert werden, zu verriegeln oder zu entriegeln. Sie weist mit dem Schieber auf der einen Seite und der Kippriegelanordnung und der Schliessscheibe auf der anderen Seite zwei unabhängig voneinander betätigbare, mechanische Komponenten auf, die jedoch im Betrieb der Hochspannungsschaltanlage während eines Verriegelungsprozesses oder eines Entriegelungsprozesses zusammenwirken. Durch das unabhängig voneinander erfolgende Betätigen des Schiebers und der Kippriegelanordnung kann so mit dem Schieber Vorort der Zugang für die Fernbetätigung oder für die Vorortbetätigung der beiden Schaltgeräte aktiviert oder aber blockiert werden. Nach Aktivierung des Zugangs für die Vorortbetätigung können die beiden Schaltgeräte mit der Kippriegelanordnung Vorort entriegelt, manuell mit einer Handkurbel in die Neutralstellung oder in eine der beiden Aktivstellungen gebracht und danach mit der Kippriegelanordnung und der Schliessscheibe verriegelt werden. Da hierzu lediglich einfache und robuste mechanische Komponenten, wie der Schieber, die Schliessscheibe und die Kippriegelanordnung benötigt werden, zeichnet sich die Verriegelungsvorichtung nach der Erfindung bei einfachem und kompaktem Aufbau durch ein hohes Mass an Bedienungskomfort und eine grosse Betriebssicherheit aus.The locking device according to the invention is simple and compact and can be retrofitted with little effort in the high-voltage switchgear. The locking device allows trained, authorized personnel suburb access for a manual operation of the two switching devices resp. to lock or unlock the access for actuation of the two switchgear by means of motors controlled by a remote control room. It has, with the slide on one side and the rocker bar assembly and the lock washer on the other side on two independently operable mechanical components, but cooperate in the operation of the high-voltage switchgear during a locking process or an unlocking process. By independently operating the slide and the tilting pad assembly can be activated with the slide suburb access for remote operation or for the local operation of the two switching devices or blocked. After activation of the access for on-site operation, the two switching devices can be unlocked with the rocker arm assembly suburb, manually placed with a hand crank in the neutral position or in one of the two active positions and then locked with the rocker arm assembly and the locking disc. Since this only simple and robust mechanical components, such as the slide, the locking washer and the tilting bolt assembly are needed, the locking device according to the invention in a simple and compact design is characterized by a high degree of ease of use and high reliability.
Der Schieber und die vier Kippriegel können jeweils in einem von fünf durch eine Gehäusewand auf eine Bedienseite der Verriegelungsvorrichtung geführten Schlössern drehbar gelagert sein.The slide and the four tilting bars can each be rotatably mounted in one of five locks guided by a housing wall onto an operating side of the locking device.
Der Schieber kann durch Drehen eines in das zugeordnete Schloss gesteckten Schlüssels von der ersten in die zweiten und durch gegenläufiges Drehen von der zweiten in die erste Position geführt werden. Nach Abziehen des Schlüssels kann der Schieber in der ersten oder zweiten Position blockiert werden.The slider can be guided from the first to the second by turning a key inserted in the associated lock and from the second to the first position by rotating it counterclockwise. After removing the key, the slider can be locked in the first or second position.
Jeder der vier Kippriegel kann durch Drehen eines in das zugeordnete Schloss gesteckten Schlüssels und Abziehen desselben in eine Geschlossenstellung, in welcher der Kippriegel unter Bildung von Formschluss in die Schliessscheibe eingreift, und durch Wiedereinstecken des Schlüssels und gegenläufiges Drehen in eine Offenstellung geführt werden, in welcher der Kippriegel ausser Eingriff mit der Schliessscheibe ist, wobei jeder der vier Kippriegel nach Abziehen des Schlüssels in der Geschlossenstellung blockiert ist.Each of the four rocker bars can be guided by turning a key inserted into the associated lock and pulling it into a closed position, in which the rocker bar engages the locking disk to form a positive fit, and by reinserting the key and rotating it counterclockwise into an open position in which the rocker bar is out of engagement with the lock washer, each of the four rockers being locked in the closed position after removal of the key.
Auf der von der Bedienseite abgewandten Seite der Gehäusewand kann der Schieber einen Haltebogen mit zwei Randaussparungen aufweisen und der erste resp. der zweite Kippriegel können jeweils eine mit einer Randaussparung versehene erste resp. zweite Kreisscheibe aufweisen, wobei in der zweiten Position des Schiebers der Haltebogen unter Bildung von Formschluss in die Randaussparung der ersten und die Randaussparung der zweiten Kreisscheibe eingefahren ist, und wobei in der ersten Position des Schiebers die beiden Randaussparungen des Haltebogens eine Blockierung des ersten resp. des zweiten Kippriegels aufheben.On the side facing away from the operating side of the housing wall, the slider may have a tie with two edge recesses and the first resp. the second rocker bar can each one provided with an edge recess first resp. have second circular disc, wherein in the second position of the slider, the tie is retracted to form positive locking in the edge recess of the first and the edge recess of the second circular disc, and wherein in the first position of the slider, the two edge recesses of the tie a blockage of the first resp. pick up the second rocker bar.
Der Schieber kann einen Arm aufweisen, der in der zweiten Position des Schiebers ein Schaltelement einschaltet, welches dem Ein- und Ausschalten einer Stromversorgung zur ferngesteuerten Betätigung der Anlage dient.The slider may have an arm which, in the second position of the slider, turns on a switching element which serves to turn on and off a power supply for remote operation of the system.
Die Schliessscheibe kann Aussparungen aufweisen und beim Verriegeln kann unter Bildung von Formschluss in der ersten Aktivstellung der erste Kippriegel und in der zweiten Aktivstellung der zweite Kippriegel in eine erste der Aussparungen eingreifen und können in der Neutralstellung der dritte und der vierte Kippriegel in eine zweite dieser Aussparungen eingreifen.The locking disc can have recesses and when locking can engage to form positive engagement in the first active position of the first tilting block and in the second active position of the second tilting block in a first of the recesses and can in the neutral position of the third and the fourth tilting block in a second of these recesses intervention.
Der dritte und der vierte Kippriegel können entgegen ihrer Drehrichtung von der Offen- in die Geschlossenstellung mit einer Vorspannkraft beaufschlagt werden. Die Vorspannkraft kann von zwei Torsionsfedern aufgebracht werden, wobei ein Ende mindestens einer der beiden Federn feststehend und das andere Ende auf einem der beiden Kippriegel gehalten ist. Die Vorspannkraft verhindert dabei ein unkontrolliertes, typischerweise durch Schwingungen, hervorgerufenes Eingreifen der beiden Kippriegel die zweite Aussparung der Schliessscheibe. Dementsprechend verbleiben die beiden Kippriegel nur dann in formschlüssigen Eingriff mit der Schliessscheibe, wenn die Schlüssel von den zugeordneten Schlössern abgezogen werden.The third and the fourth tilting bar can be acted upon against its direction of rotation from the open to the closed position with a biasing force. The Biasing force can be applied by two torsion springs, with one end of at least one of the two springs fixed and the other end held on one of the two rocker bars. The biasing force prevents an uncontrolled, typically caused by vibrations, intervention of the two tilting blocks the second recess of the lock washer. Accordingly, the two rocker bars only remain in positive engagement with the lock washer when the keys are removed from the associated locks.
Die Schliessscheibe kann zwischen zwei senkrecht zur Welle ausgerichteten und von der Welle durchdrungenen feststehenden Platten angeordnet sein. In beide Platten können mindestens vier Öffnungen derart eingeformt sein, dass beim Verriegeln in der ersten Aktivstellung ein kippbarer Eingriffskörper des ersten Kippriegels durch eine erste der mindestens vier Öffnungen und in der zweiten Aktivstellung ein kippbarer Eingriffskörper des zweiten Kippriegels durch eine zweite der mindestens vier Öffnungen jeweils unter Bildung von Formschluss mit der Schliessscheibe geführt ist und in der Neutralstellung ein kippbarer Eingriffskörper des dritten Kippriegel durch eine dritte und ein kippbarer Eingriffskörper des vierten Kippriegels durch eine vierte der mindestens vier Öffnungen unter Bildung von Formschluss mit der Schliessscheibe geführt sind.The closing disc can be arranged between two fixed plates oriented perpendicular to the shaft and penetrated by the shaft. In both plates at least four openings may be formed such that when locking in the first active position, a tiltable engagement body of the first tilting bar by a first of the at least four openings and in the second active position a tiltable engagement body of the second tilting bar by a second of the at least four openings respectively is performed with the closing disc to form positive engagement and in the neutral position, a tiltable engagement body of the third tilting bar are guided by a third and a tiltable engagement body of the fourth tilting bar through a fourth of the at least four openings to form positive engagement with the closure disc.
Jede der beiden Platten kann vier Öffnungen aufweisen, die auf beiden Platten unter Bildung von vier Öffnungspaaren spiegelsymmetrisch angeordnet sind, wobei beim Verriegeln der Eingriffskörper mindestens eines der vier Kippriegel unter Bildung des Formschlusses mit der Schliessscheibe durch mindestens eines der vier Paare geführt ist.Each of the two plates may have four openings which are arranged mirror-symmetrically on both plates to form four pairs of openings, wherein when locking the engagement body at least one of the four tilting block is guided to form the positive connection with the closure disc through at least one of the four pairs.
Mindestens eine der beiden Platten kann in einen U-Profil aufweisenden Grundkörper integriert sein, der zwei an diese Platte angesetzte Schenkel aufweist. Ein an der Bedienseite drehbar gelagerter Abschnitt mindestens eines der vier Kippriegel kann durch mindestens einen der beiden Schenkel geführt und auf beiden Schenkeln drehbar gelagert sein.At least one of the two plates can be integrated in a U-profile having body having two attached to this plate legs. A rotatably mounted on the operating side portion of at least one of the four rocker arms can be guided by at least one of the two legs and rotatably supported on both legs.
Die Erfindung betrifft auch eine Hochspannungsschaltanlage mit mindestens einer Verriegelungsvorrichtung nach einem der Ansprüche 1 bis 12, welche Anlage als Generatorschaltersystem ausgebildet ist und zwischen einem Generator und einem Transformator in ein mehrphasiges Hochspannungsnetz einbaubar ist und auf der Transformatorseite eines lastschaltenden Generatorschalterpols einen Trennschalterpol und einen Erdungsschalter aufweist oder welche als Generatorschaltersystem ausgebildet ist und zwischen einem Generator und einem Transformator in ein mehrphasiges Hochspannungsnetz einbaubar ist und auf der Generatorseite eines lastschaltenden Generatorschalterpols einen Pol eines Anfahrschalters und einen Erdungsschalter aufweist.The invention also relates to a high-voltage switchgear with at least one locking device according to one of claims 1 to 12, which system is designed as a generator switch system and can be installed between a generator and a transformer in a multi-phase high-voltage network and on the Transformer side of a load-switching Generatorschalterpols a Trennschalterpol and a grounding switch or which is designed as a generator switch system and can be installed between a generator and a transformer in a multi-phase high-voltage network and on the generator side of a load-switching Generatorschalterpols pole of a start-up switch and a grounding switch.
Anhand von Zeichnungen wird die Erfindung nachfolgend näher erläutert. Hierbei zeigt:
- Fig.1
- eine Einphasendarstellung einer mehrphasigen Hochspannungsschaltanlage nach dem Stand der Technik, welche als mehrphasiges Generatorschaltersystem ausgebildet ist und mehrere Schalterpole aufweist, die in einer Generatorableitung zwischen einem Generator eines Kraftwerks und einem Transformator eines Hochspannungsübertragungsnetzes angeordnet sind,
- Fig.2
- in perspektivischer Darstellung eine Vorrichtung zur Betätigung einer Kontaktanordnung eines ersten und einer Kontaktanordnung eines zweiten Schaltgeräts des Generatorschaltersystems nach
Fig.1 , bei dem das erste Schaltgerät geschlossen und das zweite Schaltgerät geöffnet ist, - Fig.3
- in perspektivischer Ansicht eine Ausführungsform der Verriegelungsvorrichtung nach der Erfindung, welche in die Betätigungsvorrichtung nach
Fig.2 eingebaut ist und welche die beiden Schaltgeräte in einer Neutralstellung verriegelt, - Fig.4
- eine von rechts geführte Seitenansicht der Verriegelungsvorrichtung nach
Fig.3 , bei der ein Mittelteil einerPlatte 56 entfernt wurde, - Fig.5
- eine Aufsicht auf einen längs V-V geführten Schnitt durch die Verriegelungsvorrichtung nach
Fig.4 , bei der diePlatte 56 wieder vervollständigt wurde, - Fig.6
- in vergrösserter Darstellung ein in
Fig.3 umrandet dargestellter Teil VI der Verriegelungsvorrichtung, - Fig.7
- nach Entfernen eines Nutenrades in perspektivischer Ansicht die Verriegelungsvorrichtung gemäss
Fig.3 , welche die beiden Schaltgeräte in einer ersten Aktivstellung verriegelt, - Fig.8
- die Verriegelungsvorrichtung gemäss
Fig.7 , welche die beiden Schaltgeräte nun in einer zweiten Aktivstellung verriegelt, - Fig.9
- eine in Richtung eines Pfeils IX, X geführte perspektivische Ansicht der Verriegelungsvorrichtung nach
Fig.7 , bei der der Zugang für die Vorortbetätigung aktiviert und die beiden Schaltgeräte entriegelt sind, und - Fig.10
- eine in Richtung des Pfeils IX, X geführte perspektivische Ansicht der Verriegelungsvorrichtung nach
Fig.7 , bei der der Zugang für die Vorortbetätigung blockiert und der Zugang für die Fernbetätigung aktiviert ist.
- Fig.1
- a single-phase representation of a multi-phase high-voltage switchgear according to the prior art, which is designed as a multi-phase generator switch system and has a plurality of switch poles, which are arranged in a generator lead between a generator of a power plant and a transformer of a high-voltage transmission network,
- Fig.2
- in a perspective view of a device for actuating a contact arrangement of a first and a contact arrangement of a second switching device of the generator switch system according to
Fig.1 in which the first switching device is closed and the second switching device is open, - Figure 3
- in perspective view of an embodiment of the locking device according to the invention, which in the actuator according to
Fig.2 is installed and which locks the two switching devices in a neutral position, - Figure 4
- a guided from the right side view of the locking device according to
Figure 3 in which a middle part of aplate 56 has been removed, - Figure 5
- a plan view of a longitudinal VV guided section through the locking device according to
Figure 4 in which theplate 56 was completed again, - Figure 6
- in an enlarged view an in
Figure 3 outlined part VI of the locking device, - Figure 7
- after removing a Nutenrades in perspective view the locking device according to
Figure 3 , which locks the two switching devices in a first active position, - Figure 8
- the locking device according to
Figure 7 , which now locks the two switching devices in a second active position, - Figure 9
- a guided in the direction of an arrow IX, X perspective view of the locking device according to
Figure 7 in which the access for the local control is activated and the two switching devices are unlocked, and - Figure 10
- a guided in the direction of the arrow IX, X perspective view of the locking device according to
Figure 7 in which access for on-the-spot operation is blocked and access for remote control is activated.
Das in
Jedes der beiden Schaltersysteme weist eine Vorrichtung zur Betätigung einer Kontaktanordnung des Schalterpols SP resp. TP und des zugeordneten Erdungsschalters ES1 resp. ES2 auf. Eine dieser beiden Vorrichtungen wird nachfolgend für das die beiden Schalter TP und ES2 enthaltende Schaltersystem erörtert. Eine gleichartig aufgebaute zweite dieser beiden Vorrichtungen ist geeignet, die Kontaktanordnungen des Schalterpols SP und des Erdungsschalters ES1 analog zu betätigen. Die Betätigungsvorrichtung ermöglicht lediglich eine Neutralstellung und zwei Aktivstellungen. In der Neutralstellung sind beide Schalter geöffnet, wohingegen in einer ersten der beiden Aktivstellungen der Erdungsschalter ES1 resp. ES2 geschlossen und der Schalter SP resp. TP geöffnet ist und in der zweiten Aktivstellung der Erdungsschalter ES1 resp. ES2 geöffnet und der Schalterpol SP resp. TP geschlossen ist. In jedem Fall ist die Betätigungsvorrichtung so ausgebildet, dass ein gleichzeitiges Schliessen der beiden Schalter SP und ES1 resp. TP und ES2 ausgeschlossen ist.Each of the two switch systems has a device for actuating a contact arrangement of the switch pole SP resp. TP and the associated grounding switch ES1 resp. ES2 up. One of these two devices will be discussed below for the switch system including the two switches TP and ES2. A similarly constructed second of these two devices is suitable to actuate the contact arrangements of the switch pole SP and the grounding switch ES1 analog. The actuator allows only a neutral position and two active positions. In the neutral position, both switches are opened, whereas in a first of the two active positions of the earthing switch ES1 resp. ES2 closed and the switch SP resp. TP is open and in the second active position of the earthing switch ES1 resp. ES2 open and the switch pole SP resp. TP is closed. In any case, the actuating device is designed so that a simultaneous closure of the two switches SP and ES1 resp. TP and ES2 is excluded.
Aus
Die Welle 10 ist mit einem als Malteserkreuzgetriebe ausgebildeten Schrittgetriebe 40 gekoppelt. Das Malteserkreuzgetriebe weist eine von einem Antrieb 41 im Uhr- oder im Gegenuhrzeigersinn drehbare Triebscheibe 42 mit einem Kurbelzapfen 45 und einem Haltebogen 46 auf sowie ein auf der Welle 10 aufsitzendes Nutenrad 43 mit zum Haltebogen 46 passenden, aus
Die
Die vorstehend beschriebene Betätigungsvorrichtung wird im Allgemeinen von einer entfernt angeordneten Schaltwarte betätigt und weist daher eine zur Übertragung von Starkstrom und elektrischen Signalen geeignete elektrische Verbindung zur Schaltwarte auf. Diese Verbindung dient vor allem der Übertragung von Starkstrom zum Betrieb vom Elektromotoren für das Öffnen und Schliessen der Kontaktanordnungen der beiden Schaltgeräte sowie der Übertragung von Status-, Mess- und Steuersignalen. Die bei einem solchen Fernbetrieb benötigte Kraft wird wie aus
Bei Bedarf kann die Kraft aber auch Vorort mit einer Handkurbel 47 auf die Betätigungsvorrichtung übertragen werden. Je nach Drehsinn der Handkurbel werden so Vorort die beiden Schaltgeräte in die Neutralstellung oder in eine der beiden Aktivstellungen gebracht.If necessary, the power can also be transferred on site with a hand crank 47 on the actuator. Depending on the direction of rotation of the hand crank so suburb the two switching devices are brought into the neutral position or in one of the two active positions.
Um beim manuellen Betrieb Vorort in der Schaltanlage Schadensfälle zu vermeiden, ist in die Betätigungsvorrichtung eine aus den
Wie in
In
In
In der aus
Der Schieber 80 weist ferner einen Arm 84 auf, der in seiner aus
Wie
Die insbesondere aus
In
Ersichtlich ist jede der beiden Platten 55 resp. 56 in einen U-Profil aufweisenden Grundkörper integriert, der zwei an die Platte 55 resp. 56 angesetzte Schenkel 552 resp. 562 aufweist. Der an der Bedienseite 70 drehbar gelagerter Abschnitt 500 der beiden Kippriegel 51 und 52 resp. 53 und 54 ist durch mindestens einen der beiden Schenkel 552 resp. 562 geführt und auf beiden Schenkeln drehbar gelagert.As can be seen, each of the two
Die beiden Kippriegel 53 resp. 54 sind entgegen ihrer Drehrichtung von der Offenin die Geschlossenstellung mit einer Vorspannkraft beaufschlagt, welche von zwei Torsionsfedern 531 und 541 aufgebracht wird.
Die Wirkungsweise dieser Verriegelungsvorrichtung ist wie folgt:The operation of this locking device is as follows:
In dem in
Wie
Soll die Schaltanlage von der in
Soll die Schaltanlage manuell aus der ersten Aktivstellung in die aus
Soll ausgehend von der aus den
Die Verriegelungsvorrichtung nach der Erfindung ist nicht auf ein gekapseltes Generatorschaltersystem beschränkt, welches zwischen einem Generator eines Kraftwerks und einem Transformator eines Hochspannungsnetzes installierbar ist, es kann auch in einem anderen Schaltersystem, beispielsweise einergasisolierten metallgekapselten Hochspannungsschaltanlage, verwendet werden.The locking device according to the invention is not limited to an encapsulated generator switch system which can be installed between a generator of a power plant and a transformer of a high voltage network, it can also be used in another switch system, for example a gas-insulated metal-enclosed high-voltage switchgear.
- AA
- Achseaxis
- Ee
- Erdeearth
- ES1, ES2ES1, ES2
- Erdungsschalterearthing switch
- GG
- Generatorgenerator
- GAGA
- Generatorableitunggenerator output
- GPGP
- Leistungsschalterpolbreaker
- KK
- Kapselungencapsulation
- LL
- Phasenleiterphase conductor
- PP
- SchaltersystempolSchaltersystempol
- SPSP
- Schalterpol eines AnfahrschaltersSwitch pole of a start-up switch
- TPTP
- Schalterpol eines TrennschaltersSwitch pole of a circuit breaker
- TRTR
- Transformatortransformer
- αα
- Basiswinkelbase angle
- 1010
- Antriebswelledrive shaft
- 1111
- Winkelhebelbell crank
- 12, 1312, 13
- Hebelarmelever arms
- 20, 3020, 30
- Hebelgetriebelever mechanism
- 4040
- Schrittgetriebestep gear
- 4141
- Antriebdrive
- 4242
- Triebscheibedrive Windscreen
- 4343
- Nutenradgrooved wheel
- 441, 442441, 442
- Nutengroove
- 4545
- Kurbelzapfencrank pin
- 4646
- Haltebogentie
- 461, 462, 463461, 462, 463
- Aussparungenrecesses
- 5050
- Kippriegelanordnungflip latch
- 51, 52, 53, 5451, 52, 53, 54
- Kippriegelrocker
- 55, 5655, 56
- Plattenplates
- 500500
- drehbare Abschnitte der Kippriegel,rotatable sections of the rocker bars,
- 501501
- Eingriffskörper der KippriegelEngagement body of the tilting bar
- 511, 521511, 521
- Kreisscheiben der KippriegelCircular disks of the rocker bars
- 531, 541531, 541
- Torsionsfederntorsion
- 551, 561551, 561
- Öffnungenopenings
- 552, 562552, 562
- Schenkelleg
- 6060
- SchliessscheibeSchliessscheibe
- 61, 6261, 62
- Aussparungen der SchliessscheibeRecesses of the closing disc
- 7070
- Bedienseiteoperating side
- 71, 72, 73, 74, 7571, 72, 73, 74, 75
- SchlösserCastles
- 7676
- Öffnungopening
- 700700
- Schlüsselkey
- 8080
- Schieberpusher
- 8181
- Haltebogen des SchiebersTie of the slider
- 82, 8382, 83
- Randaussparungen des HaltebogensEdge recesses of the tie
- 8484
- Armpoor
- 8585
- Schaltelementswitching element
Claims (14)
dass die Verriegelungsvorrichtung eine an der Antriebswelle (10) befestigte Schliessscheibe (60), eine mindestens vier Kippriegel (51, 52, 53, 54) enthaltende Kippriegelanordnung (50) sowie einen Schieber (80) aufweist,
wobei der Schieber (80) Vorort in zwei Positionen führbar ist, von denen die erste einen Zugang für die Betätigung Vorort freigibt und einen Zugang für die Betätigung aus der Ferne blockiert und die zweite den Zugang für die Vorortbetätigung blockiert und den Zugang für die Fernbetätigung freigibt,
wobei in der ersten Position des Schiebers (80) ein erster Kippriegel (51) in der ersten Aktivstellung und ein zweiter Kippriegel (52) in der zweiten Aktivstellung in die Schliessscheibe (60) eingreift und in der Neutralstellung ein dritter (53) und ein vierter Kippriegel (54) in die Schliessscheibe (60) eingreifen, und
wobei der Schieber (80) in seiner zweiten Position den ersten (51) und den zweiten Kippriegel (52) blockiert.Device for locking an access for the actuation of two switching devices (ES1, ES2, S, TP) of a high-voltage switchgear by means of a drive force to the two switching devices transmitting drive shaft (10), which in a first active position of the two switching devices by a base angle (α) in Clockwise and in a second active position of the two switching devices is rotated by the base angle in the counterclockwise direction relative to its angular position in a neutral position of the two switching devices, characterized
in that the locking device has a closing disc (60) fastened to the drive shaft (10), a tilting-bar arrangement (50) containing at least four tilting bars (51, 52, 53, 54) and a slide (80),
wherein the slider (80) is manoeuvrable in two locations, the first of which provides access for on-site operation and blocks access for remote operation and the second blocks access for on-the-spot operation and provides access for remote operation .
wherein in the first position of the slide (80) engages a first rocker bar (51) in the first active position and a second rocker bar (52) in the second active position in the lock washer (60) and in the neutral position a third (53) and a fourth Toggle latch (54) engage in the lock washer (60), and
wherein the slider (80) in its second position blocks the first (51) and second rocker bars (52).
wobei in der zweiten Position des Schiebers (80) der Haltebogen (81) unter Bildung von Formschluss in die Randaussparung der ersten (511) und die Randaussparung der zweiten Kreisscheibe (521) eingefahren ist, und
wobei in der ersten Position des Schiebers (80) die beiden Randaussparungen (82, 83) des Haltebogens (81) eine Blockierung des ersten Kippriegels (51) respektive des zweiten Kippriegels (52) aufheben.Device according to one of claims 2 to 4, characterized in that on the side facing away from the operating side (70) side of the housing wall of the slide (80) has a retaining bow (81) with two edge recesses (82, 83) and the first (51) respectively the second rocker bar (52) each have a first circular disk (511) or a second circular disk (521) provided with an edge recess,
wherein in the second position of the slider (80) of the retaining arc (81) is retracted to form positive locking in the edge recess of the first (511) and the edge recess of the second circular disc (521), and
wherein in the first position of the slide (80) the two edge recesses (82, 83) of the retaining bow (81) cancel a blockage of the first tilting bar (51) and the second tilting bar (52).
dass in beide Platten (55, 56) mindestens vier Öffnungen (551, 561) derart eingeformt sind, dass beim Verriegeln in der ersten Aktivstellung ein kippbarer Eingriffskörper (501) des ersten Kippriegels (51) durch eine erste Öffnung (561) der mindestens vier Öffnungen und in der zweiten Aktivstellung ein kippbarer Eingriffskörper (501) des zweiten Kippriegels (52) durch eine zweite Öffnung (561) der mindestens vier Öffnungen jeweils unter Bildung von Formschluss mit der Schliessscheibe (60) geführt ist und in der Neutralstellung ein kippbarer Eingriffskörper (501) des dritten Kippriegels (53) durch eine dritte Öffnung (551) und ein kippbarer Eingriffskörper (501) des vierten Kippriegels (54) durch eine vierte Öffnung (561) der mindestens vier Öffnungen unter Bildung von Formschluss mit der Schliessscheibe (60) geführt sind.Device according to one of claims 1 to 9, characterized in that the closing disc (60) between two perpendicular to the drive shaft (10) aligned and penetrated by the shaft fixed plates (55, 56) is arranged, and
in that at least four openings (551, 561) are formed in both plates (55, 56) in such a way that when locking in the first active position a tiltable engagement body (501) of the first tilting bar (51) passes through a first opening (561) of the at least four Openings and in the second active position, a tiltable engagement body (501) of the second tilting bar (52) through a second opening (561) of the at least four openings in each case to form a positive connection with the closure disc (60) is guided and in the neutral position a tiltable engagement body ( 501) of the third rocker bar (53) is guided through a third opening (551) and a tiltable engagement body (501) of the fourth rocker bar (54) through a fourth opening (561) of the at least four openings to form a positive engagement with the closure disk (60) are.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015113160.9A DE102015113160A1 (en) | 2015-08-10 | 2015-08-10 | Locking device for a high-voltage switchgear |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3131106A1 true EP3131106A1 (en) | 2017-02-15 |
EP3131106B1 EP3131106B1 (en) | 2017-12-13 |
Family
ID=56551324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16181670.7A Active EP3131106B1 (en) | 2015-08-10 | 2016-07-28 | Locking device for a high-voltage switchgear installation |
Country Status (4)
Country | Link |
---|---|
US (1) | US9875868B2 (en) |
EP (1) | EP3131106B1 (en) |
CN (1) | CN106449228A (en) |
DE (1) | DE102015113160A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112753088A (en) * | 2018-09-24 | 2021-05-04 | 西门子股份公司 | Quick-triggering locking element, triggering mechanism and quick-grounding device, quick switch or short-circuit device |
CN115642044A (en) * | 2022-12-09 | 2023-01-24 | 宁波耐森电气科技有限公司 | Mechanical interlocking device and power equipment |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3058828B1 (en) * | 2016-11-14 | 2020-02-21 | Schneider Electric Industries Sas | OPERATION SELECTOR OF AN EARTHING SWITCH |
CN109585209B (en) * | 2018-10-30 | 2019-11-12 | 宁波姚舜智能电气设备有限公司 | Station locks crank three position mechanism |
CN110277259B (en) * | 2019-05-28 | 2021-06-01 | 上海大华电器设备有限公司 | Logical sequential lock for electrical equipment and interlocking method thereof |
CN112201502B (en) * | 2020-09-30 | 2023-05-30 | 国网安徽省电力有限公司芜湖市湾沚区供电公司 | Double-cutter unit multipath electric switch device |
CN112509887B (en) * | 2020-11-18 | 2023-09-15 | 许继集团有限公司 | Single-shaft manual operation return forward device for composite isolation circuit breaker |
EP4030455A1 (en) * | 2021-01-14 | 2022-07-20 | ABB Schweiz AG | A medium voltage switching apparatus |
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2015
- 2015-08-10 DE DE102015113160.9A patent/DE102015113160A1/en not_active Withdrawn
-
2016
- 2016-07-28 EP EP16181670.7A patent/EP3131106B1/en active Active
- 2016-08-10 US US15/233,528 patent/US9875868B2/en active Active
- 2016-08-10 CN CN201610650393.XA patent/CN106449228A/en active Pending
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DE3710374A1 (en) | 1987-03-28 | 1988-10-13 | Bbc Brown Boveri & Cie | Drive device for actuating at least one rotatably mounted contact blade of a disconnecting switch |
DE4142548A1 (en) * | 1991-12-21 | 1993-06-24 | Abb Energie Ag | Drive for electrical isolation switch e.g. for overhead contact system - has housing with electrical or manual drive with limit switch interlock circuit. |
JP2002152922A (en) | 2000-11-08 | 2002-05-24 | Toshiba Corp | Operating mechanism for switch |
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EP1271588A1 (en) * | 2001-06-20 | 2003-01-02 | Alstom | Control device for disconnecting switch having an interlocking system implanted in a removable rotary part |
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CN112753088A (en) * | 2018-09-24 | 2021-05-04 | 西门子股份公司 | Quick-triggering locking element, triggering mechanism and quick-grounding device, quick switch or short-circuit device |
CN115642044A (en) * | 2022-12-09 | 2023-01-24 | 宁波耐森电气科技有限公司 | Mechanical interlocking device and power equipment |
CN115642044B (en) * | 2022-12-09 | 2023-03-10 | 宁波耐森电气科技有限公司 | Mechanical interlocking device and power equipment |
Also Published As
Publication number | Publication date |
---|---|
DE102015113160A1 (en) | 2017-02-16 |
US20170047179A1 (en) | 2017-02-16 |
CN106449228A (en) | 2017-02-22 |
EP3131106B1 (en) | 2017-12-13 |
US9875868B2 (en) | 2018-01-23 |
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