CN102820164A - Position detector for vacuum circuit breaker - Google Patents
Position detector for vacuum circuit breaker Download PDFInfo
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- CN102820164A CN102820164A CN2012101897015A CN201210189701A CN102820164A CN 102820164 A CN102820164 A CN 102820164A CN 2012101897015 A CN2012101897015 A CN 2012101897015A CN 201210189701 A CN201210189701 A CN 201210189701A CN 102820164 A CN102820164 A CN 102820164A
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- Prior art keywords
- board
- breaker
- support
- vacuum circuit
- terminal unit
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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 that is used for vacuum circuit-breaker; Its incident that can vacuum circuit-breaker be reached run location offers the supervisory control system of remote location with the position detection signal form, perhaps when vacuum circuit-breaker is in run location, make position or interruption position is offered the supervisory control system of remote location with the position detection signal form.
Background technology
Vacuum circuit-breaker is a kind of electric device, is used to monitor the abnormal current on the high-voltage electric power circuit with superhigh pressure or tens thousand of volt voltages, and when detecting abnormal current the automatic disconnection power circuit, thereby protection is connected to the electric wire and the electrical load device of circuit.In power station and power distribution station (like power plant or branch power plant), vacuum circuit-breaker is installed in the distribution panelboard with monitoring/protective device (like digital relay) usually.
This vacuum circuit-breaker is divided into fixed vacuum circuit-breaker with fixing breaker body and the drawer type vacuum circuit-breaker with removable breaker body.Because the drawer type vacuum circuit-breaker has the advantage of maintenance, repair of being easy to and replacing, thereby has been used widely.
The drawer type vacuum circuit-breaker generally includes support, breaker body and movable stand assembly (truck assembly).
Here, the support of fixed and arranged in distribution panelboard is the housing of vacuum circuit-breaker, and said support has the terminal unit that is used to be connected to external electric source and electric loading side power line.
Breaker body comprises: main circuit unit, and it has each vacuum interrupter in mutually that is arranged on three-phase alternating current; Switching mechanism is used for switching simultaneously corresponding main circuit unit; And the main body side terminal unit, it can be connected to the terminal unit of support.
The movable stand assembly is also referred to as " transporting frame component ", comprising: through the main shaft of handle rotation, it externally has thread surface on the circumference; Movable stand (being also referred to as " transporting frame ") with nut assembly, said nut assembly are fixed in the inside of movable stand and can move up in front and back along the thread surface of main shaft; And wheel, it rotatably is arranged on the side surface of movable stand.Movable stand is used to transport loading breaker body above that.
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 breaks off each other and being connected, but controlling power supply is connected to breaker body, thus the normal switching of ability test both opens device main body; Break off link position (or extracting the position out), in this position, the terminal unit of main body side terminal unit and support breaks off each other and being connected, and breaks off the control power supply, promptly cuts off the electricity supply.
According to being in contact position or open position in the vacuum interrupter of main circuit unit between the contact, can run location be divided into make position (closed circuit position) and interruption position (open-circuit position).
In order to monitor the current run location that whether is in of vacuum circuit-breaker; Usually; The user can open the door of distribution panelboard in person, checks the switching position display screen on the preceding guidance panel that is arranged in breaker body, when being in the close position, possibly pass through the breaker body conduct high voltage.Thereby the user emits the risk that electric power accident takes place possibly.
Correspondingly; A kind of position detector that is used for vacuum circuit-breaker need be provided; This position detector can convert the incident that vacuum circuit-breaker arrives run location into the signal of telecommunication; And this signal of telecommunication supplied as position detection signal, realizing whether arriving run location, thereby safeguard protection is provided for user (operator) from remote location monitoring vacuum circuit-breaker.
In addition; A kind of like this position detector that is used for vacuum circuit-breaker also need be provided: when vacuum circuit-breaker is in run location; Position detector converts make position or interruption position into the signal of telecommunication; And this signal of telecommunication supplied as position detection signal, when being in run location, monitor make position or interruption position safely from remote location to be implemented in vacuum circuit-breaker.
Summary of the invention
Therefore; A purpose of the present disclosure provides a kind of position detector that is used for vacuum circuit-breaker; Said position detector can convert the incident that vacuum circuit-breaker arrives run location into the signal of telecommunication; And this signal of telecommunication provided as position detection signal, so that user (operator) can check and monitor vacuum circuit-breaker whether arrive run location safely the outside of distribution panelboard or from the remote location of vacuum circuit-breaker.
Another purpose of the present disclosure provides a kind of position detector that is used for vacuum circuit-breaker; Said position detector can convert make position or interruption position into the signal of telecommunication when vacuum circuit-breaker is in run location; And this signal of telecommunication provided as position detection signal; So that user (operator) can check and monitor switching position the outside of distribution panelboard or from the remote location of vacuum circuit-breaker safely when vacuum circuit-breaker is in run location.
In order to realize these purposes and other advantages and according to purpose of the present disclosure, such as enforcement and broadly described here, a kind of position detector that is used for vacuum circuit-breaker is provided, it is characterized in that said position detector comprises:
Bearing support, it is fixed on the vacuum circuit-breaker and has top board and reaches the pair of side plates from the said top board of bottom supporting;
Operation panel; It is by said branching bolster supporting and can rise and descend; And have from the top board of said bearing support first board and second board that is connected to said first board and therewith rises and descend protruding upward, said second board is arranged between two side plates of said bearing support; And
Sensitive switch with actuator lever; Said actuator lever extends in the rising/descent path of second board of said operation panel; With the Mechanical Driven power that obtains to be used to switch, said sensitive switch is fixed in the electric position detection signal of exporting vacuum circuit-breaker on the said bearing support and according to the extruding of said second board.
For the vacuum circuit-breaker that comprises with lower component:
Support, it has terminal unit and is equipped with supporting base, and said terminal unit is connected to external power source or electric loading;
Breaker body; It has main body side terminal unit and the vacuum interrupter that is used for commutation circuit, and said main body side terminal unit has the run location of the terminal unit that is connected to said support and breaks off the test position that is connected or break off link position with the terminal unit of said support; And
The movable stand assembly is used for the said breaker body of loading in the above is transported to the run location or the test position of said support or breaks off link position,
Can realize a purpose of the present disclosure through the position detector that is provided for said vacuum circuit-breaker:
Be arranged in the position detecting device in the precalculated position of said support; It contacts said movable stand assembly in the time of can being in run location at the main body side terminal unit of said breaker body, and provides the indication vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of said movable stand assembly.
For the vacuum circuit-breaker that comprises with lower component: support, it has terminal unit and supporting base is provided, and said terminal unit is connected to the circuit between external electric source and the electric loading side; Breaker body; It has main body side terminal unit and the vacuum interrupter that is used for commutation circuit; Said main body side terminal unit has the run location of the terminal unit that is connected to said support and breaks off the test position that is connected or break off link position with the terminal unit of said support, and said breaker body has make position that is used for closed circuit and the interruption position that is used for open circuit; And the movable stand assembly, be used for the breaker body of loading in the above is transported to the run location or the test position of said support or breaks off link position,
Can realize another purpose of the present disclosure through the position detector that is provided for vacuum circuit-breaker, said position detector is characterised in that and comprises:
Be arranged in the reciprocating lever on the said movable stand assembly, it is connected to said breaker body, and can be when being in said run location, according to the make position or the interruption position of said breaker body, from protrusion or the upwards withdrawal downwards of said movable stand assembly; And
Be arranged in the position detecting device in the precalculated position of said support; The position of said precalculated position reciprocating lever of said movable stand assembly when being in run location is to contact said reciprocating lever and to provide the said breaker body of indication to be in the close position or to be in the electric position detection signal of interruption position according to the contact condition of said reciprocating lever.
Through the detailed description that the disclosure provides, the application's the further scope of application will become more clear.Yet; It should be understood that; Though described the preferred embodiments of the present invention; But the disclosure only provides with way of illustration with concrete example, and through the disclosure, various modification within the spirit and scope of the present invention will become obvious with improving for those skilled in the art.
Description of drawings
Accompanying drawing is involved further to be understood the present invention to provide, and it is incorporated in the disclosure and constitutes 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 with the disclosure.
In the accompanying drawings:
Fig. 1 shows external shape and the stereogram of main element that according to a preferred embodiment of the invention position detector can be arranged in the breaker body of vacuum circuit-breaker wherein.
Fig. 2 is the stereogram that shows the structure of the position detector that is used for vacuum circuit-breaker according to a preferred embodiment of the invention.
Fig. 3 is the vertical sectional view that shows the position detector of Fig. 2.
Fig. 4 is the external shape of the support that shows in the vacuum circuit-breaker to be comprised and the stereogram of the position of position detector according to a preferred embodiment of the invention in support.
Fig. 5 is the view that shows the running status of support, breaker body and position detector according to a preferred embodiment of the invention when the vacuum circuit breaker is in test position; This moment, the main body side terminal unit of breaker body was connected with the terminal unit disconnection of support; But the control power supply is connected to breaker body; Thereby normal switching that can test both opens device main body, wherein the view in the double dot dash line is to show the only partial enlarged view of the running status of the position detector when the vacuum circuit breaker is in test position.
Fig. 6 shows the view of running status that switches to process medium-height trestle, breaker body and the position detector according to a preferred embodiment of the invention of run location at vacuum circuit-breaker; The terminal unit of support and the main body side terminal unit of breaker body are connected to each other at this moment, and wherein the view in the double dot dash line is to show the partial enlarged view that only switches to the running status of the position detector in the run location process at vacuum circuit-breaker.
Fig. 7 is the view that shows the running status of support, breaker body and position detector according to a preferred embodiment of the invention when the vacuum circuit breaker arrives run location; The terminal unit of support and the main body side terminal unit of breaker body are connected to each other at this moment, and wherein the view in the double dot dash line is to show the only partial enlarged view of the running status of the position detector when the vacuum circuit breaker is in run location.
Fig. 8 is the view that shows the running status of reciprocating lever, and wherein reciprocating lever is arranged on according to descending in the movable stand assembly of another preferred embodiment of the present invention and when breaker body is in the close position, to protrude downwards from the bottom surface of movable stand assembly.
Fig. 9 is the view that shows the running status of reciprocating lever, and wherein reciprocating lever is arranged on according in the movable stand assembly of another preferred embodiment of the present invention and when breaker body is in interruption position, rise, thereby no longer protrudes downwards from the bottom surface of movable stand assembly.
Figure 10 is when showing the run location that is in run location and breaker body when the vacuum circuit breaker and being 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 the main body side terminal unit of the terminal unit of support and breaker body is connected to each other when the vacuum circuit breaker is in run location, and wherein the view in the double dot dash line is the partial enlarged view that only shows the running status of the position detector when the vacuum circuit breaker is in run location and breaker body and is in the close position.
Figure 11 is when showing the run location that is in run location and breaker body when the vacuum circuit breaker and being 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 the main body side terminal unit of the terminal unit of support and breaker body is connected to each other when the vacuum circuit breaker is in run location, and wherein the view in the double dot dash line is the partial enlarged view that only shows the running status of the position detector when the vacuum circuit breaker is in run location and breaker body and is in interruption position.
Embodiment
To exemplary embodiment at length be disclosed now with reference to accompanying drawing.In order to simplify the disclosure with reference to accompanying drawing, parts identical or that be equal to will be provided with identical Reference numeral, and no longer repeat it openly.
When disclosure detailed below advantages, above-mentioned purpose of the present invention, structure and the advantage easy to understand that will become.
At first; The external shape and the main element of the breaker body of vacuum circuit-breaker will briefly be described with reference to Fig. 1, Fig. 1 be show according to a preferred embodiment of the invention position detector can be arranged in external shape and the stereogram of main element of the breaker body of vacuum circuit-breaker wherein.
Position detector according to a preferred embodiment of the invention can be arranged in vacuum circuit-breaker wherein breaker body 10 generally include main circuit unit 10a, main body side terminal unit 10b and 10c and before guidance panel 10d.
As stated, main circuit unit 10 can be configured to be arranged in three utmost points (that is, three-phase) alternating current every vacuum interrupter that is used for commutation circuit in extremely, and each vacuum interrupter all has fixed contact and the armature contact that is arranged in vacuum tank.Vacuum interrupter has make position and interruption position; Power circuit between closed external electric source of said closed position and electric loading side breaks off the power circuit that is connected with the terminal unit (41a among Fig. 8 and 41b) of support through main body side terminal unit 10b and 10c at said interruption position place.
Main body side terminal unit 10b and 10c are the terminal units of breaker body 10; They are electrically connected to the fixed contact and the armature contact of vacuum interrupter respectively, and are electrically connected to the power circuit between external electric source three-phase circuit and the load-side three-phase circuit through the terminal unit (41a among Fig. 5 and 41b) of support.In the present embodiment, main body side terminal unit 10b and 10c are made up of three power supply side terminals and three load side terminal that end has a plurality of finger formula contactors respectively.
Preceding operation panel 10d is the user interface section in the vacuum circuit-breaker, and it is provided with action button and switches the charging handle connecting portion of vacuum circuit-breaker, display unit and closing spring to allow the user.
In addition, breaker body 10 further comprises the switching mechanism (not shown), is used for the armature contact of the vacuum interrupter of main circuit unit 10a is driven into open position or make position.Here, well-known is that switching mechanism can comprise: the switching drive source of spring or electric drive; And a plurality of connecting rods, its electric power with the respective drive source is sent to the armature contact of the vacuum interrupter of main circuit unit 10a.
As shown in Figure 1, breaker body 10 can be loaded on the movable stand assembly 30 and through movable stand assembly 30 and transport.
The handle link 31a of the main shaft (not shown) of transverse beam assembly 20 supporting movable stand assemblies 30 also exposes it.When the operating grip (not shown) is connected to handle link 31a and rotates, will make main axis rotation, thereby drive movable stand assembly 30 along fore-and-aft direction.
Cramp bar 20a longitudinally is arranged on two sidepiece places at transverse beam assembly 20 two ends with protrusion or Stealth Modus, and cramp bar 20a is fixed on the support and by support supporting (will afterwards literary composition describe) is provided.Here; Use a technical term " with the protrusion or Stealth Modus " reason be; When the handle in being included in transverse beam assembly 20 among Fig. 1 (no Reference numeral) laterally moved, the cramp bar 20a that is connected to corresponding handle can be along the longitudinal movement laterally to protrude at transverse beam assembly 20 two ends or to hide.Therefore; When cramp bar 20a is positioned at salient position; If spur handle forward, then transverse beam assembly 20, be connected to the movable stand assembly 30 of transverse beam assembly 20 through main shaft, and be loaded in breaker body 10 on the movable stand assembly 30 and all can break off fully and be connected and be drawn out with support.
Cramp bar 20a can be assembled to the corresponding supported hole portion (not providing Reference numeral) in the front side (the terminal unit side is a rear side, and opposite side is the front side) of support shown in Figure 4 40 in and by said supported hole portion supporting is provided.
Next; The structure and the operation of movable stand assembly 30 will be described with reference to Fig. 1 now; Wherein movable stand assembly 30 is as the conveyer of drawing in and pull out the breaker body of vacuum circuit-breaker, and Fig. 1 is the stereogram of structure that shows movable stand assembly and the transverse beam assembly of vacuum circuit-breaker.
Movable stand (being also referred to as the motion frame) is used to transport loading breaker body 10 above that; Along drawing in terminal unit 41a and the 41b of direction near support (40 among Fig. 5), or along pull-out direction near the transverse beam assembly 20 of Fig. 1 but away from terminal unit 41a and the 41b of support (40 among Fig. 5).Movable stand is supported by rotating shaft movably, and is provided with four wheels 32, and every side surface is provided with one wheel pairs.
Main shaft has to extend in the movable stand and pass transverse beam assembly 20 and is exposed to outside handle link 31a.Main shaft has the almost thread surface on whole exterior periphery.When rotating through the operating grip (not shown) that connects, main shaft provides the actuating force of transporting movable stand.
Nut assembly is fixed on the front surface of movable stand and with the thread surface of main shaft and engages, thereby can be along the thread surface of main shaft and move up in front and back.
Then, now will with reference to Fig. 4 the schematic configuration of support is described and in support the position of switching position detector, Fig. 4 be the external shape of the support that shows in the vacuum circuit-breaker to be comprised and in support the stereogram of the position of switching position detector.
With reference to Fig. 4, support 40 can be configured to for example irony housing, 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 shown in Fig. 1 and 10c have run location, test position and disconnection link position; At run location; Main body side terminal unit 10b and 10c are connected to the terminal unit 41a and the 41b of the support 40 shown in Fig. 4; At test position or disconnection link position, main body side terminal unit 10b breaks off with 41b with the terminal unit 41a of support 40 with 10c and being connected.
Especially, base portion 42 can comprise a bottom, the bottommost surface isolation of this bottom and support 40, and have predetermined altitude and space between bottom and the bottommost surface.Position detector 50 is arranged in this space, and protrude from bottom on its top.
Still with reference to Fig. 4, on fore-and-aft direction, the position of position detector 50 in the base portion 42 of support 40 is the rear end that is furnished with the support 40 of terminal unit 41a and 41b.
Next; Will be with reference to the structure of Fig. 2 and Fig. 3 description switching position detector that is used for vacuum circuit-breaker according to a preferred embodiment of the invention; Fig. 2 is the stereogram that shows the structure of position detector according to a preferred embodiment of the invention, and Fig. 3 is the vertical sectional view that shows the position detector of 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 are 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 are 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 is used for the pair of side plates 53 from bottom supporting top board 52.
Through screw fastener (like screw bolt and nut), can top board 52 be connected and be fixed to the lower surface of 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.
The 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 bottom (below will describe) of first board 51 of operation panel 59 descended, the first guide tube part 52b guided this narrow bottom.In addition, back-moving spring 56 (below will describe) arranges around the first guide tube part 52b, thereby can guide the stretching and the contraction of said back-moving spring.
The second guide tube part 52a is from the top surface of top board 52 hollow tube portion protruding upward, and its contiguous first guide tube part 52b and upper and lower are open.Rising and the decline of the balance extension 51c that second guide tube part 52a guiding below will be described.
Pair of side plates 53 roof supportings 52 also have guiding groove 53a separately.Being connected in the following manner between pair of side plates 53 and the top board 52 realizes: adpting flange portion is formed on the top at side plate 53, uses securing member (like screw bolt and nut) said flange portion to be fixed to the basal surface of top board 52.
Operation panel 59 comprises first board 51 and second board 54, and is supported to rise and to descend by first bearing support 58.
Connecting portion 54a is vertical formation of central upper from the plate surface of second board 54.As stated, this is a part that is used to connect the bottom of first board 51.
Top guiding protuberance 54d from the top of two side surfaces of second board 54 along the plate surface of second board 54 forwards to protrusion, and guide the rising and the decline of second board 54 on two side plates 53 smoothly respectively.
As everyone knows, break off or during the inner contact of closed sensitive switch 55 the sensitive switch 55 output signals of telecommunication through Mechanical Contact.In Fig. 6, can be clear that sensitive switch 55 comprises actuator lever 55a, actuator lever 55a extends to the Mechanical Driven power to obtain to be used to switch in the rising/descent path of second board 54 of operation panel 59.As everyone knows, the front end of actuator lever 55a is provided with the roller that comes buffer mechanism to impact through rotation.Sensitive switch 55 is fixed on the side plate 53 of first bearing support 58.Internal mechanical contact (not shown) switches under the squeezing action of second board 54, thereby sensitive switch 55 output indication vacuum circuit-breakers whether arrive run location or breaker body 10 is to arrive the make position or the electric position detection signal of interruption position (being switching position).
The run location detecting operation of the position detector with above-mentioned structure according to a preferred embodiment of the invention will be described with reference to Fig. 5 to Fig. 7 so, now.
At first; Now will with reference to Fig. 5 describe when the 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; The main body side terminal unit 10b of breaker body 10 breaks off with 41b with the terminal unit 41a of support 40 with 10c and being connected at this moment; But the control terminal (not shown) of breaker body 10 is connected to the control terminal (not shown) of support, providing like direct current to breaker body 10 as the control power supply, thus the switching of normal circuit that can test both opens device main body 10.
With reference to Fig. 5, movable stand assembly 30 is positioned at the front side of the base portion 42 of support 40, thereby away from the switching position detector 50 of the rear side of the base portion that is positioned support 40 42.
Therefore, first board, 51 no top load and rising are so that second boards 54 below first board 51 discharge the actuator lever 55a of sensitive switches 55.As a result, the inner contact of sensitive switch 55 is broken off, and sensitive switch 55 output indication breaker body 10 are not in the electric position detection signal of run location at present then.
At test position and disconnection link position, the run location detecting operation of position detector according to a preferred embodiment of the invention is basic identical.
That is to say; Though not shownly go out, because at the disconnection link position of vacuum circuit-breaker; Movable stand assembly 30 does not appear in the support 40 with breaker body 10; Therefore, first board, 51 no top load and rising are so that second boards 54 below first board 51 discharge the actuator lever 55a of sensitive switches 55.As a result, the inner contact of sensitive switch 55 is broken off, and sensitive switch 55 output indication breaker body 10 are not in the electric position detection signal of run location at present then.
Next, will according to a preferred embodiment of the invention support 40, breaker body 10 and position detector 50 switches to the run location (that is, shown in Figure 6 state) of Fig. 7 from test position operation be described with reference to Fig. 6 now.
Under the state of Fig. 6; Promptly switch in the process of run location; Because the back protuberance 30a of movable stand assembly 30 can contact the top surface of first board 51, but do not exert pressure load above that, therefore; Second boards 54 below first board, the 51 no top load and rising, first board 51 discharge the actuator lever 55a of sensitive switches 55.As a result, the inner contact of sensitive switch 55 is broken off, and sensitive switch 55 output indication breaker body 10 are not in the electric position detection signal of run location at present then.
Simultaneously; Under the state of Fig. 7; When promptly being in run location; When movable stand assembly 30 arrived the planar portions of first board 51 and pushes first board 51 downwards through sloped surface portion, first board 51 descended, so that the actuator lever 55a of second board, the 54 extruding sensitive switches 55 below first board 51.As a result, the inner contact of sensitive switch 55 is closed, and sensitive switch 55 output indication breaker body 10 are in the electric position detection signal of run location at present then.
The structure and the switching position detecting operation of position detector according to a further advantageous embodiment of the invention will be described with reference to Fig. 8 to Figure 11 so, now.
At first, now will be with reference to the structure of Fig. 8 and Fig. 9 description position detector according to a further advantageous embodiment of the invention.
As shown in the figure; Position detector according to a further advantageous embodiment of the invention significantly is different from position detector according to the abovementioned embodiments of the present invention; Because this position detector comprises the reciprocating lever 30b that is positioned on the movable stand 30; It is connected to breaker body 10, and can be according to the make position of breaker body 10 or interruption position and from movable stand assembly 30 protrusion or upwards withdrawal downwards.Here, the structure of reciprocating lever 30b and operation thereof are known and can for example authorize applicant's of the present invention korean registered patent 10-0459480 with reference to a plurality of examples.
Here, 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 stated, position detector 50 comprises bearing support 58, operation panel 59 and sensitive switch 55.Yet; The base portion 42 that position detector 50 is arranged in support 40 can contact the precalculated position of reciprocating lever 30b; Promptly move the precalculated position of the corresponding support 40 in the position of reciprocating lever 30b of frame component 30 when being in run location; And, provide indication breaker body 10 to be in the close position or the electric position detection signal of interruption position (open position just) according to the contact condition of reciprocating lever 30b.
Hereinafter, now will be with reference to the switching position detecting operation of Figure 10 and Figure 11 description position detector according to a further advantageous embodiment of the invention.
With reference to Figure 10; When the vacuum circuit breaker is in run location; The terminal unit 41a of support 10 and 41b are connected to the main body side terminal unit (10b among Fig. 9 and 10c) of breaker body 10; Simultaneously; When the operating position of breaker body 10 was make position, movable contactor contact was used for the fixed contact of vacuum interrupter of arbitrary utmost point of three utmost points (phase), and the connecting rod and descend with the reciprocating lever 30b of its interlocking that is connected to the switching mechanism (not shown) of breaker body 10 protrudes downwards with the basal surface from movable stand assembly 30.
As a result, first board 51 of the downward extrusion position detector of reciprocating lever 30b and make its decline.
Therefore; Second board 54 that is connected with the bottom of first board 51 descends; With squeeze-activated bar 55a; Thereby the inner contact of sensitive switch 55 is closed, then the position detection signal that is in the close position at present of the operating position of sensitive switch 55 output indication vacuum circuit-breakers (being breaker body 10).
Through near vacuum circuit-breaker or away from the display screen or the warning device of vacuum circuit-breaker; Like the outernal display unit of distribution panelboard, can be used to notify the operating position of user (operator) vacuum circuit-breaker (being breaker body 10) to be in the close position corresponding position detection signal.
With reference to Figure 11; When the vacuum circuit breaker is in run location; The terminal unit 41a of support 10 and 41b are connected to the main body side terminal unit (10b among Fig. 9 and 10c) of breaker body 10; Simultaneously; When the operating position of breaker body 10 was interruption position, the fixed contact of movable contactor and the vacuum interrupter of the arbitrary utmost point that is used for three utmost points (mutually) separated, be connected to breaker body 10 the switching mechanism (not shown) connecting rod and rise from movable stand assembly 30 with the reciprocating lever 30b of its interlocking.
As a result, first board 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 board 51 and second board 54 rise to discharge actuator lever 55a; Thereby the inner contact of sensitive switch 55 is broken off, and the operating position of sensitive switch 55 output indication vacuum circuit-breakers (being breaker body 10) is in the position detection signal of interruption position (open position) at present then.
Through near vacuum circuit-breaker or away from the display screen or the warning device of vacuum circuit-breaker; Like the outernal display unit of distribution panelboard, can be used to notify the operating position of user (operator) vacuum circuit-breaker (being breaker body 10) to be in interruption position corresponding position detection signal.
By means of the position detector that is used for vacuum circuit-breaker according to the present invention; When the vacuum circuit breaker arrives or is present in run location; Actuating device is according to the switching position extrusion operation plate of breaker body and make its decline; The actuator lever of the operation panel extruding sensitive switch that descends then is with the inner contact of operation sensitive switch; Thereby can export the position detection signal that the indication vacuum circuit-breaker arrives the incident or the indication switching position of run location, and corresponding position detection signal is sent to remote location.Thereby, can monitor incident or the monitoring switching position that vacuum circuit-breaker arrives run location at remote location.
The position detector that is used for vacuum circuit-breaker according to the present invention comprises two ends; One end bearing is on the top board of bearing support; And the other end is bearing on first board of operation panel, and further comprises and be used for operation panel is applied the back-moving spring of elastic force with the actuator lever that discharges sensitive switch.As a result, when power conveying device no longer applied downward pressure to operation panel, operation panel can automatically return to initial position.
At the position detector that is used for vacuum circuit-breaker according to the present invention; Two side plates of bearing support have guiding groove separately; And second board of operation panel has a pair of guide block that stretches out and insert guiding groove respectively from two side surfaces, to pass through the guiding groove rising and the decline of pilot operationp plate stably.
At the position detector that is used for vacuum circuit-breaker according to the present invention, second board of operation panel has the lower knuckle portion that is used to push or discharge the actuator lever of sensitive switch.Thereby, the actuator lever that can stably push sensitive switch through bend.
At the position detector that is used for vacuum circuit-breaker according to the present invention; First board of operation panel further comprises to the balance extension that extends below; Be used between the rising of first board and decrement phase, keeping balance, and the top board of bearing support further comprises the guide tube part of the rising and the decline that are used to guide the balance extension.This device keeps balance between the rising of operation panel and decrement phase, so that operation panel can rise and descend with linear mode.
The position detector that is used for vacuum circuit-breaker according to the present invention comprises the position detecting device in the precalculated position that is arranged in support; This position detecting device can contact the movable stand assembly when breaker body is in run location, and can provide the indication vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of movable stand assembly.Thereby, can provide the indication vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of movable stand assembly.
The position detector that is used for vacuum circuit-breaker according to the present invention comprises: the reciprocating lever on the movable stand assembly; It is connected to breaker body; And can be according to the make position or the interruption position of said breaker body, from protrusion or the upwards withdrawal downwards of said movable stand assembly; And the position detecting device that is arranged in the precalculated position of support, it can contact said reciprocating lever, and provides the said breaker body of indication to be in the close position or to be in the electric position detection signal of interruption position according to the reciprocal state of said reciprocating lever.Thereby, can provide the said breaker body of indication to be in the close position or to be in the electric position detection signal of interruption position according to the protrusion state of reciprocating lever.
The foregoing description and advantage are merely exemplary, and are not interpreted as restriction of the present disclosure.This instruction can easily 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 modes, improvement and modification all will be conspicuous for a person skilled in the art.Characteristic, structure, method and other characteristics in these exemplary embodiments of this explanation can make up in various manners, to obtain other and/or alternate exemplary embodiment.
Because characteristic of the present invention can be presented as various ways under the situation that does not depart from its characteristic; So be to be understood that; Unless otherwise indicated; The foregoing description is not limited by aforementioned disclosed any details, explains but should in the appending claims restricted portion, do broadly, therefore falls into scope or all changes in the equivalency range and the improvement of claims thereby should be included in the appending claims.
Claims (10)
1. position detector that is used for vacuum circuit-breaker is characterized in that said position detector comprises:
Bearing support, it is fixed on the vacuum circuit-breaker and has top board and reaches the pair of side plates from the said top board of bottom supporting;
Operation panel; It is by said branching bolster supporting and can rise and descend; And have from the said top board of said bearing support first board and second board that is connected to said first board and therewith rises and descend protruding upward, said second board is arranged between two side plates of said bearing support; And
Sensitive switch with actuator lever; Said actuator lever extends in the rising/descent path of said second board of said operation panel; With the Mechanical Driven power that obtains to be used to switch, said sensitive switch is fixed in the electric position detection signal of exporting vacuum circuit-breaker on the said bearing support and according to the extruding of said second board.
2. position detector according to claim 1; Further comprise back-moving spring; One end bearing of said back-moving spring is on the said top board of said bearing support; And the other end is bearing on said first board of said operation panel, and said back-moving spring is used for said operation panel is applied elastic force to discharge the said actuator lever of said sensitive switch.
3. position detector according to claim 1; Wherein, Two side plates of said bearing support have the guiding slot part respectively; And said second board of said operation panel has respectively a pair of guide block that extends and insert said guiding slot part from two side surfaces, rises and descends to guide through said guiding slot part.
4. position detector according to claim 1, wherein, said second board of said operation panel has the lower knuckle portion that is used to push or discharge the said actuator lever of said sensitive switch.
5. position detector according to claim 1; Wherein, Said first board of said operation panel further comprises to the balance extension that extends below; Be used between the rising of said first board and decrement phase, keeping balance, and the said top board of said bearing support further comprises the guide tube part of the rising and the decline that are used to guide said balance extension.
6. position detector that is used for vacuum circuit-breaker, said vacuum circuit-breaker comprises with lower component:
Support, it has terminal unit and supporting base is provided, and said terminal unit is connected to external power source or electric loading;
Breaker body; It has main body side terminal unit and the vacuum interrupter that is used for commutation circuit, and said main body side terminal unit has the run location of the terminal unit that is connected to said support and breaks off the test position that is connected or break off link position with the terminal unit of said support; And
The movable stand assembly is used for the said breaker body of loading in the above is transported to the run location or the test position of said support or breaks off link position,
It is characterized in that said position detector comprises:
Be arranged in the position detecting device in the precalculated position of said support; It contacts said movable stand assembly in the time of can being in run location at the main body side terminal unit of said breaker body, and provides the indication vacuum circuit-breaker whether to be in the electric position detection signal of run location according to the contact condition of said movable stand assembly.
7. position detector according to claim 6, wherein, said position detecting device comprises:
Bearing support, it is fixed in the precalculated position of said support and has top board and reaches the pair of side plates from the said top board of bottom supporting;
Operation panel; It is by said branching bolster supporting and can rise and descend; And have first board and second board; Said first board is protruding upward can contacting said movable stand assembly from the said top board of said bearing support, and said second board is connected to said first board and therewith rises and descend and be arranged between two said side plates of said bearing support; And
Sensitive switch with actuator lever; Said actuator lever extends in the rising/descent path of said second board of said operation panel; With the Mechanical Driven power that obtains to be used to switch, said sensitive switch is fixed in the electric position detection signal of exporting vacuum circuit-breaker on the said bearing support and according to the extruding of said second board.
8. according to claim 1 or 7 described position detectors, wherein, said first board of said operation panel comprises sloped surface portion and planar portions.
9. position detector that is used for said vacuum circuit-breaker, said vacuum circuit-breaker comprises with lower component: support, it has terminal unit and supporting base is provided, and said terminal unit is connected to the circuit between external electric source and the electric loading side; Breaker body; It has main body side terminal unit and the vacuum interrupter that is used for commutation circuit; Said main body side terminal unit has the run location of the terminal unit that is connected to said support and breaks off the test position that is connected or break off link position with the terminal unit of said support, and said breaker body has make position that is used for closed circuit and the interruption position that is used for open circuit; And the movable stand assembly, be used for the breaker body of loading in the above is transported to the run location or the test position of said support or breaks off link position,
It is characterized in that said position detector comprises:
Be arranged in the reciprocating lever on the said movable stand assembly, it is connected to said breaker body, and can be when being in said run location, according to the make position or the interruption position of said breaker body, from protrusion or the upwards withdrawal downwards of said movable stand assembly; And
Be arranged in the position detecting device in the precalculated position of said support; The position of said precalculated position reciprocating lever of said movable stand assembly when being in run location is to contact said reciprocating lever and to provide the said breaker body of indication to be in the close position or to be in the electric position detection signal of interruption position according to the contact condition of said reciprocating lever.
10. position detector according to claim 9, wherein, said position detecting device comprises:
Bearing support, it is fixed in the precalculated position of said support and has top board and reaches the pair of side plates from the said top board of bottom supporting;
Operation panel; It is by said branching bolster supporting and can rise and descend; And have first board and second board; Said first board is protruding upward can contacting said reciprocating lever from the said top board of said bearing support, and said second board is connected to said first board and therewith rises and descend and be arranged between two said side plates of said bearing support; And
Sensitive switch with actuator lever; Said actuator lever extends in the rising/descent path of said second board of said operation panel; Switch actuating force to obtain Mechanical Contact; Said sensitive switch is fixed in said bearing support, and exports the indication breaker body according to the extruding of said second board or release and be in the close position or the electric position detection signal of interruption position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110056444A KR101201711B1 (en) | 2011-06-10 | 2011-06-10 | Position detector for vacuum circuit breaker |
| KR10-2011-0056444 | 2011-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820164A true CN102820164A (en) | 2012-12-12 |
| CN102820164B CN102820164B (en) | 2015-02-18 |
Family
ID=47304220
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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110943391A (en) * | 2018-09-21 | 2020-03-31 | Ls产电株式会社 | High-voltage distribution box |
| CN111201580A (en) * | 2017-09-15 | 2020-05-26 | Abb瑞士股份有限公司 | Switching device with fixed contacts provided with test terminals |
| WO2021201536A1 (en) * | 2020-04-03 | 2021-10-07 | 엘에스일렉트릭(주) | Power device for continuously detecting entrance and exit positions |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101883574B1 (en) * | 2016-12-29 | 2018-07-30 | 엘에스산전 주식회사 | Position detector for vacuum circuit breaker |
| 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 |
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| JP2001297661A (en) * | 2000-04-13 | 2001-10-26 | Shinko Electric Co Ltd | Switching device and position detection for vehicle |
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| CN101783265A (en) * | 2008-12-31 | 2010-07-21 | Ls产电株式会社 | Run/test position indicator devices in circuit breaker |
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- 2011-06-10 KR KR1020110056444A patent/KR101201711B1/en active IP Right Grant
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- 2012-05-24 BR BR102012012477-7A patent/BR102012012477A2/en not_active Application Discontinuation
- 2012-06-08 CN CN201210189701.5A patent/CN102820164B/en active Active
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| JP2001297661A (en) * | 2000-04-13 | 2001-10-26 | Shinko Electric Co Ltd | Switching device and position detection for vehicle |
| KR100459480B1 (en) * | 2002-09-30 | 2004-12-03 | 엘지산전 주식회사 | Interlock apparatus of vacuum circuit breaker |
| CN2620369Y (en) * | 2003-04-23 | 2004-06-09 | 李祥启 | Lifting limit switch for vertical parking equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111201580A (en) * | 2017-09-15 | 2020-05-26 | Abb瑞士股份有限公司 | Switching device with fixed contacts provided with test terminals |
| US11193976B2 (en) | 2017-09-15 | 2021-12-07 | Abb Schweiz Ag | Switching device whose stationary contact is provided with test terminal |
| CN110943391A (en) * | 2018-09-21 | 2020-03-31 | Ls产电株式会社 | High-voltage distribution box |
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| WO2021201536A1 (en) * | 2020-04-03 | 2021-10-07 | 엘에스일렉트릭(주) | Power device for continuously detecting entrance and exit positions |
| US12154748B2 (en) | 2020-04-03 | 2024-11-26 | Ls Electric Co., Ltd. | Power device for continuously detecting entrance and exit positions |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102012012477A2 (en) | 2017-12-19 |
| CN102820164B (en) | 2015-02-18 |
| KR101201711B1 (en) | 2012-11-15 |
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