CN102820164B - Position detector for vacuum circuit breaker - Google Patents
Position detector for vacuum circuit breaker Download PDFInfo
- Publication number
- CN102820164B CN102820164B CN201210189701.5A CN201210189701A CN102820164B CN 102820164 B CN102820164 B CN 102820164B CN 201210189701 A CN201210189701 A CN 201210189701A CN 102820164 B CN102820164 B CN 102820164B
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- Prior art keywords
- plate portion
- breaker
- vacuum circuit
- support
- terminal unit
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Classifications
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- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
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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
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention provides a position detector for a vacuum circuit breaker. The position detector can convert the event that the vacuum circuit breaker reaches an operating position into an electrical signal, and the electrical signal is provided as the position detection signal to enable a user (an operator) to safely inspect and monitor whether the vacuum circuit breaker reaches the running position at a remote location of the vacuum circuit breaker. The position detector for the vacuum circuit breaker comprises: a supporting frame having a top plate and a pair of side plates supporting the top plate from the bottom; an operating plate including a first plate projecting upwardly from the top plate of the supporting frame and a second plate connected with the first plate and lifting and dropping together with the first plate, wherein the second plate is arranged between the two side plates of the supporting frame; and a micro switch, which is fixed on supporting frame and outputs an electrical position detection signal of the vacuum circuit breaker according to the extrusion of the second plate.
Description
Technical field
The disclosure relates to vacuum circuit-breaker, especially, relate to the position detector for vacuum circuit-breaker, its event that vacuum circuit-breaker can be reached run location is supplied to the supervisory control system of remote location with position detection signal form, or when vacuum circuit-breaker is in run location, make position or interruption position is supplied to the supervisory control system of remote location with position detection signal form.
Background technology
Vacuum circuit-breaker is a kind of electric device, for monitoring the abnormal current on the high-voltage electric power circuit with superhigh pressure or tens thousand of volt voltage, and automatically disconnects power circuit when abnormal current being detected, thus protection is connected to electric wire and the electrical load device of circuit.In power station and power distribution station (as power plant or point power plant), vacuum circuit-breaker is arranged in distribution panelboard usually together with monitoring/protective device (as digital relay).
This vacuum circuit-breaker is divided into the fixed vacuum breaker with fixing breaker body and the drawer type vacuum circuit-breaker with removable breaker body.Because drawer type vacuum circuit-breaker has the advantage being easy to maintenance, repair and replacing, be thus used widely.
Drawer type vacuum circuit-breaker generally includes support, breaker body and movable stand assembly (truckassembly).
Herein, the support of fixed and arranged in distribution panelboard is the housing of vacuum circuit-breaker, and described support has the terminal unit for being connected to external power source side and electric loading side power line.
Breaker body comprises: main circuit unit, and it has the vacuum interrupter in each phase being arranged on three-phase alternating current; Switching mechanism, for switching corresponding main circuit unit simultaneously; And main body side terminal unit, it can be connected to the terminal unit of support.
Movable stand assembly, also referred to as " conveying rack assembly ", comprising: by the main shaft of rotatable handle, it circumferentially has thread surface in outside; Have the movable stand (also referred to as " conveying rack ") of nut assembly, described nut assembly is fixed on the inside of movable stand and can moves in the longitudinal direction along the thread surface of main shaft; And wheel, it is rotatably arranged on the side surface of movable stand.Movable stand is for transporting loading breaker body thereon.
This vacuum circuit-breaker has following three positions: run location (or link position), and in this position, the terminal unit of main body side terminal unit and support is connected to each other; Test position, in this position, the terminal unit of main body side terminal unit and support disconnects each other, but controlling power supply is connected to breaker body, thus the normal switching of energy test both opens device main body; Disconnect position (or withdrawn position), in this position, the terminal unit of main body side terminal unit and support disconnects each other, and disconnects control power supply, namely cuts off the electricity supply.
Be in contact position or open position according in the vacuum interrupter of main circuit unit between contact, run location can be divided into make position (closed circuit position) and interruption position (open-circuit position).
In order to monitor, whether vacuum circuit-breaker is current is in run location, usually, user can open the door of distribution panelboard in person, checks the switching position display screen be arranged on the front guidance panel of breaker body, when in the closed position can by breaker body conduct high voltage.Thus, user emits the risk that electric power accident occurs possibly.
Correspondingly; need to provide a kind of position detector for vacuum circuit-breaker; the event that vacuum circuit-breaker can be arrived run location by this position detector is converted to the signal of telecommunication; and this signal of telecommunication is supplied as position detection signal; to realize whether arriving run location from remote location monitoring vacuum circuit-breaker, thus provide safeguard protection for user (operator).
In addition, also need to provide a kind of like this position detector for vacuum circuit-breaker: when vacuum circuit-breaker is in run location, make position or interruption position are converted to the signal of telecommunication by position detector, and this signal of telecommunication is supplied as position detection signal, to realize when vacuum circuit-breaker is in run location, monitor make position or interruption position safely from remote location.
Summary of the invention
Therefore, an object of the present disclosure is to provide a kind of position detector for vacuum circuit-breaker, the event that vacuum circuit-breaker can be arrived run location by described position detector is converted to the signal of telecommunication, and this signal of telecommunication is provided as position detection signal, can check and monitor vacuum circuit-breaker whether arrive run location safely in the outside of distribution panelboard or from the remote location of vacuum circuit-breaker to make user (operator).
Another object of the present disclosure is to provide a kind of position detector for vacuum circuit-breaker, make position or interruption position can be converted to the signal of telecommunication when vacuum circuit-breaker is in run location by described position detector, and this signal of telecommunication is provided as position detection signal, to make user (operator) can when vacuum circuit-breaker is in run location, the outside at distribution panelboard or the remote location from vacuum circuit-breaker check safely and monitor switching position.
In order to realize these objects and other advantages and according to object of the present disclosure, as to implement and broadly described here, provide a kind of position detector for vacuum circuit-breaker, it is characterized in that described position detector comprises:
Bearing support, it to be fixed on vacuum circuit-breaker and to have top board and the pair of side plates from top board described in bottom supporting;
Operation panel, it is by described branching bolster supporting and can rise and decline, and have from the top board of described bearing support the first plate portion protruding upward and be connected to described first plate portion and the second plate portion of therewith rising and declining, described second plate portion is arranged between two side plates of described bearing support; And
There is the sensitive switch of actuator lever, described actuator lever extends in the rise/fall path in the second plate portion of described operation panel, to obtain the mechanical drive for switching, described sensitive switch is fixed on the electric position detection signal exporting vacuum circuit-breaker on described bearing support and according to the extruding in described second plate portion.
Vacuum circuit-breaker for comprising with lower component:
Support, it has terminal unit and is equipped with supporting base, and described terminal unit is connected to external power source or electric loading;
Breaker body, it has main body side terminal unit and the vacuum interrupter for commutation circuit, and described main body side terminal unit has run location and the test position disconnected with the terminal unit of described support of the terminal unit being connected to described support or disconnects position; And
Movable stand assembly, for the described breaker body of loading in the above is transported to run location or the test position in described support or disconnects position,
An object of the present disclosure can be realized by the position detector being provided for described vacuum circuit-breaker:
Be arranged in the position detecting device in the precalculated position of described support, it can contact described movable stand assembly when the main body side terminal unit of described breaker body is in run location, and provides instruction vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of described movable stand assembly.
Vacuum circuit-breaker for comprising with lower component: support, it has terminal unit and provides supporting base, and described terminal unit is connected to the circuit between external power source side and electric loading side; Breaker body, it has main body side terminal unit and the vacuum interrupter for commutation circuit, described main body side terminal unit has run location and the test position disconnected with the terminal unit of described support of the terminal unit being connected to described support or disconnects position, and described breaker body has the make position for closed circuit and the interruption position for open circuit; And movable stand assembly, for the breaker body of loading in the above is transported to run location or the test position in described support or disconnects position,
Can realize another object of the present disclosure by the position detector being provided for vacuum circuit-breaker, the feature of described position detector is to comprise:
Be arranged in the reciprocating lever on described movable stand assembly, it is connected to described breaker body, and when being in described run location, according to make position or the interruption position of described breaker body, can protruding downwards from described movable stand assembly or upwards regaining; And
Be arranged in the position detecting device in the precalculated position of described support, described precalculated position corresponding to the position of the reciprocating lever of described movable stand assembly when being in run location, to contact described reciprocating lever and to provide the described breaker body of instruction to be in the close position or to be in the electric position detection signal of interruption position according to the contact condition of described reciprocating lever.
By the detailed description that the disclosure provides, the further scope of application of the application will become more clear.But, it should be understood that, although describe the preferred embodiments of the present invention, but the disclosure and concrete example only illustratively provide, by the disclosure, various different modification within the spirit and scope of the present invention and improvement will become apparent for those skilled in the art.
Accompanying drawing explanation
Accompanying drawing is involved further to be understood the present invention to provide, and it to be incorporated in the disclosure and to form a part of this disclosure, and accompanying drawing shows exemplary embodiment of the present invention and is used for explaining principle of the present invention together with the disclosure.
In the accompanying drawings:
Fig. 1 is that the position detector shown according to a preferred embodiment of the invention can be arranged in the external shape of the breaker body of vacuum circuit-breaker wherein and the stereogram of main element.
Fig. 2 is the stereogram of the structure of the position detector for vacuum circuit-breaker shown according to a preferred embodiment of the invention.
Fig. 3 is the vertical sectional view of the position detector showing Fig. 2.
The stereogram that Fig. 4 is the external shape and position detector position in the bracket according to a preferred embodiment of the invention that show the support comprised in vacuum circuit-breaker.
Fig. 5 is the view of the running status showing support, breaker body and position detector according to a preferred embodiment of the invention when vacuum circuit-breaker is in test position, now the main body side terminal unit of breaker body and the terminal unit of support disconnect, but control power supply and be connected to breaker body, thus can the normal switching of test both opens device main body, the view wherein in double dot dash line is the partial enlarged view of the running status of the position detector shown only when vacuum circuit-breaker is in test position.
Fig. 6 shows the view being switched to the running status of the process medium-height trestle of run location, breaker body and position detector according to a preferred embodiment of the invention at vacuum circuit-breaker, now the terminal unit of support and the main body side terminal unit of breaker body are connected to each other, and the view wherein in double dot dash line is show the partial enlarged view being only switched to the running status of the position detector in run location process at vacuum circuit-breaker.
Fig. 7 is the view of the running status showing support, breaker body and position detector according to a preferred embodiment of the invention when vacuum circuit-breaker arrives run location, now the terminal unit of support and the main body side terminal unit of breaker body are connected to each other, and the view wherein in double dot dash line is the partial enlarged view of the running status of the position detector shown only when vacuum circuit-breaker is in run location.
Fig. 8 is the view of the running status showing reciprocating lever, declines, to protrude downwards from the bottom surface of movable stand assembly during wherein reciprocating lever is arranged on according to another preferred embodiment of the present invention movable stand assembly when breaker body is in the close position.
Fig. 9 is the view of the running status showing reciprocating lever, rises during wherein reciprocating lever is arranged on according to another preferred embodiment of the present invention movable stand assembly, thus no longer protrude downwards from the bottom surface of movable stand assembly when breaker body is in interruption position.
Figure 10 shows when vacuum circuit-breaker is in run location and the run location of breaker body is in the close position, the view of the running status of support, breaker body and position detector according to a preferred embodiment of the invention, wherein when vacuum circuit-breaker is in run location, the terminal unit of support and the main body side terminal unit of breaker body are connected to each other, and the view wherein in double dot dash line is the partial enlarged view of the running status of the position detector shown only when vacuum circuit-breaker is in run location and breaker body is in the close position.
Figure 11 shows when vacuum circuit-breaker is in run location and the run location of breaker body is in interruption position, the view of the running status of support, breaker body and position detector according to a preferred embodiment of the invention, wherein when vacuum circuit-breaker is in run location, the terminal unit of support and the main body side terminal unit of breaker body are connected to each other, and the view wherein in double dot dash line is the partial enlarged view of the running status of the position detector shown only when vacuum circuit-breaker is in run location and breaker body is in interruption position.
Embodiment
Now with reference to accompanying drawing in detail exemplary embodiment is disclosed.In order to simplify the disclosure with reference to accompanying drawing, identical or equivalent parts will be provided with identical Reference numeral, and no longer repeat it openly.
When disclosure detailed below reading with reference to accompanying drawing, above-mentioned purpose of the present invention, structure and advantage will become easy to understand.
First, briefly describe external shape and the main element of the breaker body of vacuum circuit-breaker with reference to Fig. 1, Fig. 1 can be arranged in the external shape of the breaker body of vacuum circuit-breaker wherein and the stereogram of main element for the position detector shown according to a preferred embodiment of the invention.
The breaker body 10 that position detector according to a preferred embodiment of the invention can be arranged in vacuum circuit-breaker wherein generally includes main circuit unit 10a, main body side terminal unit 10b and 10c and front guidance panel 10d.
As mentioned above, main circuit unit 10 can be configured to be arranged in three poles (that is, three-phase) alternating current every extremely in for the vacuum interrupter of commutation circuit, and each vacuum interrupter has the fixed contact and armature contact that are arranged in vacuum tank.Vacuum interrupter has make position and interruption position, close the power circuit between external power source side and electric loading side in described closed position, disconnect the power circuit be connected with the terminal unit (41a and 41b in Fig. 8) of support by main body side terminal unit 10b with 10c at described interruption position place.
Main body side terminal unit 10b and 10c is the terminal unit of breaker body 10, they are electrically connected to fixed contact and the armature contact of vacuum interrupter respectively, and are electrically connected to the power circuit between external power source side three-phase circuit and load-side three-phase circuit by the terminal unit (41a and 41b in Fig. 5) of support.In the present embodiment, main body side terminal unit 10b and 10c has three power supply side terminals of multiple finger formula contactor respectively by end and three load side terminal are formed.
Front operation panel 10d is the user interface section in vacuum circuit-breaker, and it is provided with action button with the charging handle connecting portion allowing user to switch vacuum circuit-breaker, display unit and closing spring.
In addition, breaker body 10 comprises switching mechanism (not shown) further, and the armature contact for the vacuum interrupter by main circuit unit 10a is driven into open position or make position.Herein, it is well known that switching mechanism can comprise: the switching drive source of spring or electric drive; And multiple connecting rod, the electric power in respective drive source is sent to the armature contact of the vacuum interrupter of main circuit unit 10a by it.
As shown in Figure 1, breaker body 10 can be loaded on movable stand assembly 30 and to be transported by movable stand assembly 30.
The handle attachment end 31a of the main shaft (not shown) of transverse beam assembly 20 support movable stand assembly 30 also makes it expose.When operating grip (not shown) is connected to handle attachment end 31a and rotates, main shaft will be made to rotate, thus drive movable stand assembly 30 along the longitudinal direction.
Cramp bar 20a is to protrude or Stealth Modus is longitudinally arranged on two sidepiece places at transverse beam assembly 20 two ends, and cramp bar 20a to be fixed on support and to provide supporting (will be described later) by support.Herein, the reason of term " to protrude or Stealth Modus " is used to be, when being included in the handle in transverse beam assembly 20 (without Reference numeral) transverse shifting in Fig. 1, the cramp bar 20a being connected to corresponding handle can move longitudinally laterally protrude at transverse beam assembly 20 two ends or hide.Therefore, when cramp bar 20a is positioned at salient position, if pull handle forward, then transverse beam assembly 20, be connected to the movable stand assembly 30 of transverse beam assembly 20 by main shaft, and the breaker body 10 be loaded on movable stand assembly 30 all can disconnect completely with support and be drawn out.
Cramp bar 20a can be assembled in the supported hole portion (not providing Reference numeral) corresponding with the front side of the support 40 shown in Fig. 4 (terminal unit side is rear side, and opposite side is front side) and to provide supporting by described supported hole portion.
Next, structure and the operation of movable stand assembly 30 are described now with reference to Fig. 1, wherein movable stand assembly 30 is as the conveyer of breaker body drawing in and pull out vacuum circuit-breaker, and Fig. 1 is the stereogram showing the movable stand assembly of vacuum circuit-breaker and the structure of transverse beam assembly.
Movable stand assembly 30 comprises movable stand (without Reference numeral, also referred to as " movement frame ") and nut assembly (not shown).
Movable stand (also referred to as movement frame) is for transporting loading breaker body 10 thereon, along drawing in terminal unit 41a and 41b of direction close to support (40 in Fig. 5), or along pull-out direction close to the transverse beam assembly 20 of Fig. 1 but away from terminal unit 41a and 41b of support (40 in Fig. 5).Movable stand is supported movably by rotating shaft, and is provided with four wheels 32, and every side surface arranges one wheel pairs.
Main shaft has the handle attachment end 31a extending in movable stand and be exposed to outside through transverse beam assembly 20.Main shaft has the thread surface almost in whole exterior periphery.When the operating grip (not shown) by connecting rotates, main shaft provides the actuating force of transporting movable stand.
The front surface that nut assembly is fixed on movable stand engages with the thread surface of main shaft, thus can move in the longitudinal direction along the thread surface of main shaft.
Then, now with reference to Fig. 4, the schematic configuration of support and the position of switching position detector are in the bracket described, the stereogram that Fig. 4 is the external shape and the position of switching position detector in the bracket that show the support comprised in vacuum circuit-breaker.
With reference to Fig. 4, support 40 can be configured to such as ferrous casings, and it has open front surface, two side plates 43, base portion 42, top cover portion (not providing Reference numeral), guide rail 44 and terminal unit 41a and 41b.Support 40 also provides supporting base for breaker body 10.
Main body side terminal unit 10b and 10c shown in Fig. 1 has run location, test position and disconnects position, at run location, main body side terminal unit 10b and 10c is connected to terminal unit 41a and 41b of the support 40 shown in Fig. 4, at test position or disconnect position, terminal unit 41a and 41b of main body side terminal unit 10b and 10c and support 40 disconnects.
Especially, base portion 42 can comprise a bottom, and this bottom is separated with the bottommost surface of support 40, and has predetermined altitude and space between bottom and bottommost surface.Position detector 50 is arranged in this space, and its top is protruded from bottom.
Still with reference to Fig. 4, in the longitudinal direction, the position of position detector 50 in the base portion 42 of support 40 is the rear end of the support 40 being furnished with terminal unit 41a and 41b.
Guide rail 44 is for providing and guide the mobile route of wheel 32 of above-mentioned movable stand assembly 30.Pair of guide rails 44 is arranged in the lower inner wall of side plate 43 of support 40 along the fore-and-aft direction of support 40.
Next, the structure of the switching position detector for vacuum circuit-breaker is according to a preferred embodiment of the invention described with reference to Fig. 2 and Fig. 3, Fig. 2 is the stereogram of the structure of the position detector shown according to a preferred embodiment of the invention, and Fig. 3 is the vertical sectional view of the position detector showing Fig. 2.
Switching position detector according to a preferred embodiment of the invention generally includes bearing support 58, operation panel 59 and sensitive switch 55.
Bearing support 58 fixed and arranged is in the precalculated position of the support of vacuum circuit-breaker.According to a preferred embodiment of the invention, bearing support 58 fixed and arranged is in the precalculated position of the aforementioned base portion 42 of the support of vacuum circuit-breaker.Bearing support 58 comprises top board 52 and for the pair of side plates 53 from bottom supporting top board 52.
By screw fastener (as screw bolt and nut), top board 52 can be connected and be fixed to the lower surface of the bottom of the base portion 42 of Fig. 4.Top board 52 comprises the first guide tube part 52b and the second guide tube part 52a.
First guide tube part 52b is that its upper and lower is open from the top surface of top board 52 hollow tube portion protruding upward.When the narrow lower portions (will be described below) in the first plate portion 51 of operation panel 59 declines, the first guide tube part 52b guides this narrow lower portions.In addition, back-moving spring 56(will be described below) arrange around the first guide tube part 52b, thus stretching and the contraction of described back-moving spring can be guided.
Second guide tube part 52a is from the top surface of top board 52 hollow tube portion protruding upward, and it is close to first guide tube part 52b and upper and lower is open.Second guide tube part 52a guides below by the rising of balance extension 51c that is described and decline.
Pair of side plates 53 roof supporting 52 also has guiding groove 53a separately.Connection between pair of side plates 53 and top board 52 realizes in the following manner: form adpting flange portion at the top of side plate 53, use securing member (as screw bolt and nut) by as described in flange portion be fixed to the basal surface of top board 52.
Operation panel 59 comprises the first plate portion 51 and the second plate portion 54, and is supported to rise and decline by the first bearing support 58.
First plate portion 51 is protruding upward from the top board 52 of the first bearing support 58.First plate portion 51 comprises head and bottom, described bottom narrower than described head and longer and between two side plates 53 extend.The head in the first plate portion 51 forms by being usually formed as trapezoidal plate cage structure, has the sloped surface portion 51a on two side surfaces and the planar portions 51b between two sloped surface portion 51a.
Second plate portion 54 is parts of operation panel 59, the second plate portion 54 between two side plates 53 of the first bearing support 58 and the first plate portion 51 that is connected to rise and to decline together with the first plate portion 51.Herein, according to a preferred embodiment of the invention, the connection between the first plate portion 51 and the second plate portion 54 realizes in the following manner: use bolt, nuts and washers, the bottom in the first plate portion 51 is connected to the connecting portion 54a in the second plate portion 54.
Second plate portion 54 comprises connecting portion 54a, guide block 54b, bend 54c and top and guides protuberance 54d.
Connecting portion 54a is vertically formed from the central upper on the plate surface in the second plate portion 54.As mentioned above, this is a part for the bottom for connecting the first plate portion 51.
Guide block 54b stretches out from two side surfaces in the second plate portion 54 of operation panel 59 respectively, and the guiding groove 53a inserting side plate 53 is stably to guide rising and the decline of operation panel 59.
Bend 54c is bent to the plate surface perpendicular to the second plate portion 54 from the bottom in the second plate portion 54 along forward direction, and declines extrude the actuator lever 55a of sensitive switch 55 or rise to discharge actuator lever 55a.
Top guides protuberance 54d to protrude from the top of two side surfaces in the second plate portion 54 along the forward direction on the plate surface in the second plate portion 54, and guides rising and the decline in the second plate portion 54 on two side plates 53 smoothly respectively.
As everyone knows, when being disconnected by Mechanical Contact or close the inner contact of sensitive switch 55, sensitive switch 55 exports the signal of telecommunication.In figure 6, can be clear that sensitive switch 55 comprises actuator lever 55a, actuator lever 55a extends in the rise/fall path in the second plate portion 54 of operation panel 59 to obtain the mechanical drive for switching.As everyone knows, the front end of actuator lever 55a is provided with the roller rotating cushion mechanical shocks.Sensitive switch 55 is fixed on the side plate 53 of the first bearing support 58.Internal mechanical contact (not shown) switches under the squeezing action in the second plate portion 54, thus sensitive switch 55 output instruction vacuum circuit-breaker whether arrives run location or breaker body 10 arrives make position or the electric position detection signal of interruption position (i.e. switching position).
Reference numeral 55b represents the hold-down screw of the inwall for sensitive switch 55 being fixed to side plate 53.
So, the run location with the position detector of above-mentioned structure described according to a preferred embodiment of the invention now with reference to Fig. 5 to Fig. 7 detects operation.
First, now with reference to Fig. 5 describe when vacuum circuit-breaker is in test position, the operation of support 40, breaker body 10 and position detector according to a preferred embodiment of the invention 50, now main body side terminal unit 10b and 10c of breaker body 10 and terminal unit 41a and 41b of support 40 disconnects, but the control terminal (not shown) of breaker body 10 is connected to the control terminal (not shown) of support, using provide as direct current to breaker body 10 as control power supply, thus can test both opens device main body 10 normal circuit switch.
With reference to Fig. 5, movable stand assembly 30 is positioned at the front side of the base portion 42 of support 40, thus away from the switching position detector 50 of rear side of base portion 42 being positioned support 40.
Therefore, rise without top load in the first plate portion 51, with the actuator lever 55a making the second plate portion 54 below the first plate portion 51 discharge sensitive switch 55.As a result, the inner contact of sensitive switch 55 disconnects, and then sensitive switch 55 exports the electric position detection signal that instruction breaker body 10 is not in run location at present.
At test position and disconnect position, it is substantially identical that the run location of position detector according to a preferred embodiment of the invention detects operation.
That is, although not shown, but, owing to disconnecting position at vacuum circuit-breaker, movable stand assembly 30 and breaker body 10 do not appear in support 40, therefore, rise without top load in the first plate portion 51, with the actuator lever 55a making the second plate portion 54 below the first plate portion 51 discharge sensitive switch 55.As a result, the inner contact of sensitive switch 55 disconnects, and then sensitive switch 55 exports the electric position detection signal that instruction breaker body 10 is not in run location at present.
Next, now with reference to Fig. 6, support 40, breaker body 10 and position detector 50 to be according to a preferred embodiment of the invention switched to the run location (that is, the state shown in Fig. 6) of Fig. 7 operation from test position is described.
Under the state of Fig. 6, namely be switched in the process of run location, rear protuberance 30a due to movable stand assembly 30 can contact the top surface in the first plate portion 51, but do not apply pressure loading thereon, therefore, rise without top load in first plate portion 51, the second plate portion 54 below the first plate portion 51 discharges the actuator lever 55a of sensitive switch 55.As a result, the inner contact of sensitive switch 55 disconnects, and then sensitive switch 55 exports the electric position detection signal that instruction breaker body 10 is not in run location at present.
Simultaneously, in a state of fig. 7, when being namely in run location, when movable stand assembly 30 arrives the planar portions in the first plate portion 51 through sloped surface portion and extrudes the first plate portion 51 downwards, first plate portion 51 declines, with the actuator lever 55a making the second plate portion 54 below the first plate portion 51 extrude sensitive switch 55.As a result, the inner contact of sensitive switch 55 closes, and then sensitive switch 55 exports the electric position detection signal that instruction breaker body 10 is in run location at present.
So, structure and the switching position detection operation of position detector are according to a further advantageous embodiment of the invention described now with reference to Fig. 8 to Figure 11.
First, the structure of position detector is according to a further advantageous embodiment of the invention described now with reference to Fig. 8 and Fig. 9.
As shown in the figure, position detector according to a further advantageous embodiment of the invention is significantly different from position detector according to the abovementioned embodiments of the present invention, because this position detector comprises the reciprocating lever 30b be positioned on movable stand 30, it is connected to breaker body 10, and can protrude downwards from movable stand assembly 30 according to the make position of breaker body 10 or interruption position or upwards retract.Herein, the structure of reciprocating lever 30b and operation thereof are known and with reference to multiple example, such as, can authorize the Ebrean Registered Patent 10-0459480 of applicant of the present invention.
Herein, the position detecting device according to a further advantageous embodiment of the invention of interlocking with reciprocating lever 30b is configured to position detector 50, and as mentioned above, position detector 50 comprises bearing support 58, operation panel 59 and sensitive switch 55.But, the base portion 42 that position detector 50 is arranged in support 40 can contact the precalculated position of reciprocating lever 30b, the precalculated position of namely corresponding with the position of the reciprocating lever 30b of movable stand assembly 30 when being in run location support 40, and according to the contact condition of reciprocating lever 30b, provide instruction breaker body 10 to be in the close position or the electric position detection signal of interruption position (namely open position).
Hereinafter, the switching position detection operation of position detector is according to a further advantageous embodiment of the invention described now with reference to Figure 10 and Figure 11.
With reference to Figure 10, when vacuum circuit-breaker is in run location, terminal unit 41a and 41b of support 10 is connected to the main body side terminal unit (10b and 10c in Fig. 9) of breaker body 10, simultaneously, when the operating position of breaker body 10 is make positions, movable contactor contact is used for the fixed contact in the vacuum interrupter of arbitrary pole of three poles (phase), is connected to the connecting rod of the switching mechanism (not shown) of breaker body 10 and declines to protrude from the basal surface of movable stand assembly 30 downwards with the reciprocating lever 30b of its interlocking.
As a result, the downward extrusion position detector of reciprocating lever 30b the first plate portion 51 and make it decline.
Therefore, the the second plate portion 54 be connected with the bottom in the first plate portion 51 declines, with squeeze-activated bar 55a, thus the inner contact of sensitive switch 55 closes, then sensitive switch 55 exports the position detection signal indicating the operating position of vacuum circuit-breaker (i.e. breaker body 10) in the close position at present.
By near vacuum circuit-breaker or away from the display screen of vacuum circuit-breaker or warning device, as the outernal display unit of distribution panelboard, corresponding position detection signal can be used for notifying that the operating position of user (operator) vacuum circuit-breaker (i.e. breaker body 10) is in the close position.
With reference to Figure 11, when vacuum circuit-breaker is in run location, terminal unit 41a and 41b of support 10 is connected to the main body side terminal unit (10b and 10c in Fig. 9) of breaker body 10, simultaneously, when the operating position of breaker body 10 is interruption position, movable contactor is separated with the fixed contact in the vacuum interrupter of the arbitrary pole for three poles (phase), is connected to the connecting rod of the switching mechanism (not shown) of breaker body 10 and rises from movable stand assembly 30 with the reciprocating lever 30b of its interlocking.
As a result, the first plate portion 51 of the no longer downward extrusion position detector of the reciprocating lever 30b of rising.
Therefore, under the resilient force of back-moving spring 56, first plate portion 51 and the second plate portion 54 rise to discharge actuator lever 55a, thus the inner contact of sensitive switch 55 disconnects, then sensitive switch 55 exports the position detection signal indicating the operating position of vacuum circuit-breaker (i.e. breaker body 10) to be in interruption position (open position) at present.
By near vacuum circuit-breaker or away from the display screen of vacuum circuit-breaker or warning device, as the outernal display unit of distribution panelboard, corresponding position detection signal can be used for notifying that the operating position of user (operator) vacuum circuit-breaker (i.e. breaker body 10) is in interruption position.
By means of the position detector for vacuum circuit-breaker according to the present invention, when vacuum circuit-breaker arrival or when being present in run location, actuating device is according to the switching position extrusion operation plate of breaker body and make it decline, the actuator lever of the operation panel extruding sensitive switch then declined is to operate the inner contact of sensitive switch, thus the event of instruction vacuum circuit-breaker arrival run location or the position detection signal of instruction switching position can be exported, and corresponding position detection signal is sent to remote location.Thus, can monitor at remote location event or the monitoring switching position that vacuum circuit-breaker arrives run location.
Position detector for vacuum circuit-breaker according to the present invention comprises two ends, one end is bearing on the top board of bearing support, and the other end is bearing in the first plate portion of operation panel, and comprise further for applying elastic force to discharge the back-moving spring of the actuator lever of sensitive switch to operation panel.As a result, when power conveying device no longer applies downward pressure to operation panel, operation panel can automatically return to initial position.
According to of the present invention in the position detector of vacuum circuit-breaker, two side plates of bearing support have guiding groove separately, and the second plate portion of operation panel is had and stretches out from two side surfaces respectively and insert a pair guide block of guiding groove, stably to be guided rising and the decline of operation panel by guiding groove.
According to of the present invention in the position detector of vacuum circuit-breaker, the second plate portion of operation panel has the lower knuckle portion of actuator lever for extruding or discharge sensitive switch.Thus, the actuator lever of sensitive switch stably can be extruded by bend.
According to of the present invention in the position detector of vacuum circuit-breaker, first plate portion of operation panel comprises the balance extension to downward-extension further, for keeping balance between the rising and decrement phase in the first plate portion, and the top board of bearing support comprises further for guiding the balance rising of extension and the guide tube part of decline.This device keeps balance between the rising and decrement phase of operation panel, rises in a linear fashion to enable operation panel and declines.
Position detector for vacuum circuit-breaker according to the present invention comprises the position detecting device be arranged in the precalculated position of support, when breaker body is in run location, this position detecting device can contact movable stand assembly, and instruction vacuum circuit-breaker can be provided whether to be in the electric position detection signal of run location according to the contact condition of movable stand assembly.Thus, instruction vacuum circuit-breaker can be provided whether to be in the electric position detection signal of run location according to the contact condition of movable stand assembly.
Position detector for vacuum circuit-breaker according to the present invention comprises: the reciprocating lever on movable stand assembly, it is connected to breaker body, and according to the make position of described breaker body or interruption position, can protrude downwards from described movable stand assembly or upwards regain; And being arranged in the position detecting device in precalculated position of support, it can contact described reciprocating lever, and provides the described breaker body of instruction to be in the close position or to be in the electric position detection signal of interruption position according to the reciprocal state of described reciprocating lever.Thus, the described breaker body of instruction can be provided to be in the close position or to be in the electric position detection signal of interruption position according to the protruding state of reciprocating lever.
Above-described embodiment and advantage are only exemplary, and are not interpreted as restriction of the present disclosure.This instruction easily can be applied to the device of other types.The disclosure aims to provide exemplary illustration, and does not limit the scope of claim.Many optional manner, improvement and modification will be all apparent for a person skilled in the art.The feature of these exemplary embodiments described herein, structure, method and other characteristics can combine in various manners, to obtain other and/or optional exemplary embodiment.
Because feature of the present invention can be presented as various ways when not departing from its characteristic, so be to be understood that, unless otherwise indicated, above-described embodiment does not limit by aforementioned disclosed any details, but do and broadly explain in the scope that should limit at appending claims, therefore fall into all changes in the scope of claims or equivalency range and improve and thus should be included in appending claims.
Claims (8)
1., for a position detector for vacuum circuit-breaker, it is characterized in that described position detector comprises:
Bearing support, it to be fixed on vacuum circuit-breaker and to have top board and the pair of side plates from top board described in bottom supporting;
Operation panel, it is by described branching bolster supporting and can rise and decline, and have from the described top board of described bearing support the first plate portion protruding upward and be connected to described first plate portion and the second plate portion of therewith rising and declining, described second plate portion is arranged between two side plates of described bearing support; And
There is the sensitive switch of actuator lever, described actuator lever extends in the rise/fall path in described second plate portion of described operation panel, to obtain the mechanical drive for switching, described sensitive switch to be fixed on described bearing support and to export the electric position detection signal of vacuum circuit-breaker according to the extruding in described second plate portion
Wherein, the described first plate portion of described operation panel comprises the balance extension to downward-extension further, for keeping balance between the rising and decrement phase in described first plate portion, and the described top board of described bearing support comprises further for guiding the described rising of balance extension and the guide tube part of decline.
2. position detector according to claim 1, comprise back-moving spring further, one end of described back-moving spring is bearing on the described top board of described bearing support, and the other end is bearing in the described first plate portion of described operation panel, described back-moving spring is used for applying elastic force to discharge the described actuator lever of described sensitive switch to described operation panel.
3. position detector according to claim 1, wherein, two side plates of described bearing support have guiding groove portion respectively, and the described second plate portion of described operation panel has and extends from two side surfaces respectively and insert a pair guide block in described guiding groove portion, rise to be guided by described guiding groove portion and decline.
4. position detector according to claim 1, wherein, the described second plate portion of described operation panel has the lower knuckle portion of described actuator lever for extruding or discharge described sensitive switch.
5. position detector according to claim 1, wherein, the described first plate portion of described operation panel comprises sloped surface portion and planar portions.
6., for a position detector for vacuum circuit-breaker, described vacuum circuit-breaker comprises with lower component:
Support, it has terminal unit and provides supporting base, and described terminal unit is connected to external power source or electric loading;
Breaker body, it has main body side terminal unit and the vacuum interrupter for commutation circuit, and described main body side terminal unit has run location and the test position disconnected with the terminal unit of described support of the terminal unit being connected to described support or disconnects position; And
Movable stand assembly, for the described breaker body of loading in the above is transported to run location or the test position in described support or disconnects position,
It is characterized in that described position detector comprises:
Be arranged in the position detecting device in the precalculated position of described support, it can contact described movable stand assembly when the main body side terminal unit of described breaker body is in run location, and provide instruction vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of described movable stand assembly
Wherein, described position detecting device comprises:
Bearing support, it is fixed on the precalculated position of described support and has top board and the pair of side plates from top board described in bottom supporting;
Operation panel, it is by described branching bolster supporting and can rise and decline, and there is the first plate portion and the second plate portion, described first plate portion is protruding upward can contact described movable stand assembly from the described top board of described bearing support, and described second plate portion is connected to described first plate portion and therewith rise and decline and between two the described side plates being arranged in described bearing support; And
There is the sensitive switch of actuator lever, described actuator lever extends in the rise/fall path in described second plate portion of described operation panel, to obtain the mechanical drive for switching, described sensitive switch to be fixed on described bearing support and to export the electric position detection signal of vacuum circuit-breaker according to the extruding in described second plate portion
And wherein, the described first plate portion of described operation panel comprises the balance extension to downward-extension further, for keeping balance between the rising and decrement phase in described first plate portion, and the described top board of described bearing support comprises further for guiding the described rising of balance extension and the guide tube part of decline.
7. position detector according to claim 6, wherein, the described first plate portion of described operation panel comprises sloped surface portion and planar portions.
8. for a position detector for vacuum circuit-breaker, described vacuum circuit-breaker comprises with lower component: support, and it has terminal unit and provides supporting base, and described terminal unit is connected to the circuit between external power source side and electric loading side; Breaker body, it has main body side terminal unit and the vacuum interrupter for commutation circuit, described main body side terminal unit has run location and the test position disconnected with the terminal unit of described support of the terminal unit being connected to described support or disconnects position, and described breaker body has the make position for closed circuit and the interruption position for open circuit; And movable stand assembly, for the breaker body of loading in the above is transported to run location or the test position in described support or disconnects position,
It is characterized in that described position detector comprises:
Be arranged in the reciprocating lever on described movable stand assembly, it is connected to described breaker body, and when being in described run location, according to make position or the interruption position of described breaker body, can protruding downwards from described movable stand assembly or upwards regaining; And
Be arranged in the position detecting device in the precalculated position of described support, described precalculated position is corresponding to the position of the reciprocating lever of described movable stand assembly when being in run location, to contact described reciprocating lever and to provide according to the contact condition of described reciprocating lever the described breaker body of instruction to be in the close position or to be in the electric position detection signal of interruption position
Wherein, described position detecting device comprises:
Bearing support, it is fixed on the precalculated position of described support and has top board and the pair of side plates from top board described in bottom supporting;
Operation panel, it is by described branching bolster supporting and can rise and decline, and there is the first plate portion and the second plate portion, described first plate portion is protruding upward can contact described reciprocating lever from the described top board of described bearing support, and described second plate portion is connected to described first plate portion and therewith rise and decline and between two the described side plates being arranged in described bearing support; And
There is the sensitive switch of actuator lever, described actuator lever extends in the rise/fall path in described second plate portion of described operation panel, actuating force is switched to obtain Mechanical Contact, described sensitive switch is fixed on described bearing support, and export instruction breaker body according to the extruding in described second plate portion or release be in the close position or the electric position detection signal of interruption position
And wherein, the described first plate portion of described operation panel comprises the balance extension to downward-extension further, for keeping balance between the rising and decrement phase in described first plate portion, and the described top board of described bearing support comprises further for guiding the described rising of balance extension and the guide tube part of decline.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0056444 | 2011-06-10 | ||
| KR1020110056444A KR101201711B1 (en) | 2011-06-10 | 2011-06-10 | Position detector for vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820164A CN102820164A (en) | 2012-12-12 |
| CN102820164B true CN102820164B (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210189701.5A Active CN102820164B (en) | 2011-06-10 | 2012-06-08 | Position detector for vacuum circuit breaker |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101201711B1 (en) |
| CN (1) | CN102820164B (en) |
| BR (1) | BR102012012477A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101883574B1 (en) * | 2016-12-29 | 2018-07-30 | 엘에스산전 주식회사 | Position detector for vacuum circuit breaker |
| FI11881U1 (en) | 2017-09-15 | 2017-12-05 | Abb Oy | Coupler device whose fixed contact is provided with a measuring connector |
| KR200492345Y1 (en) * | 2018-09-21 | 2020-09-22 | 엘에스일렉트릭(주) | High voltage electric switchboard |
| KR102423582B1 (en) * | 2020-04-03 | 2022-07-20 | 엘에스일렉트릭(주) | Power Equipment For Detecting In-Out Position Continuously |
| US11804338B2 (en) * | 2021-12-21 | 2023-10-31 | Jst Power Equipment, Inc. | Switchgear system that determines contact erosion in circuit breaker |
| US11860230B2 (en) | 2021-12-21 | 2024-01-02 | Jst Power Equipment, Inc. | Testing system that determines contact erosion in circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620369Y (en) * | 2003-04-23 | 2004-06-09 | 李祥启 | Lifting limit switch for vertical parking equipment |
| CN101783265A (en) * | 2008-12-31 | 2010-07-21 | Ls产电株式会社 | Run/test position indicator devices in circuit breaker |
| CN201774171U (en) * | 2010-07-15 | 2011-03-23 | 北京人民电器厂有限公司 | Position signal acquisition and transmission device of drawer-type circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4386539B2 (en) * | 2000-04-13 | 2009-12-16 | シンフォニアテクノロジー株式会社 | Switch device and vehicle position detection device |
| KR100459480B1 (en) * | 2002-09-30 | 2004-12-03 | 엘지산전 주식회사 | Interlock apparatus of vacuum circuit breaker |
-
2011
- 2011-06-10 KR KR1020110056444A patent/KR101201711B1/en active IP Right Grant
-
2012
- 2012-05-24 BR BR102012012477-7A patent/BR102012012477A2/en not_active Application Discontinuation
- 2012-06-08 CN CN201210189701.5A patent/CN102820164B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620369Y (en) * | 2003-04-23 | 2004-06-09 | 李祥启 | Lifting limit switch for vertical parking equipment |
| CN101783265A (en) * | 2008-12-31 | 2010-07-21 | Ls产电株式会社 | Run/test position indicator devices in circuit breaker |
| CN201774171U (en) * | 2010-07-15 | 2011-03-23 | 北京人民电器厂有限公司 | Position signal acquisition and transmission device of drawer-type circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102012012477A2 (en) | 2017-12-19 |
| KR101201711B1 (en) | 2012-11-15 |
| CN102820164A (en) | 2012-12-12 |
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