CN205353167U - Acquisition circuit , Power quality monitor device and looped netowrk cabinet - Google Patents
Acquisition circuit , Power quality monitor device and looped netowrk cabinet Download PDFInfo
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- CN205353167U CN205353167U CN201620131018.XU CN201620131018U CN205353167U CN 205353167 U CN205353167 U CN 205353167U CN 201620131018 U CN201620131018 U CN 201620131018U CN 205353167 U CN205353167 U CN 205353167U
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Abstract
The utility model provides an acquisition circuit, power quality monitor device and looped netowrk cabinet, wherein acquisition circuit generates and touches corresponding touch signal and transmit to the control unit through the touch unit, the control unit can acquire the information of selecing with operating personnel that the transformation ratio is relevant according to the touch signal who receives and trigger the switch branch road that the transformation ratio that switches on and select is established ties mutually, the undercurrent of output after this transformation ratio conversion, can carry out the selection of arbitrary transformation ratio through the touch unit, and need not rethread change over switch carries out the transformation ratio according to set order selection and switching, the flexibility is higher, the trouble that change over switch easily burns out has also been avoided.
Description
Technical field
This utility model relates to technical field of electric power, is specifically related to a kind of Acquisition Circuit, equipment for monitoring power quality and ring main unit.
Background technology
Along with the continuous progress of production technology, some power consumers are also more and more higher for the requirement of power quality, even experience of short duration Interference from current, also can whole production process be damaged, thus causing substantial amounts of economic loss.Interference from current is not only long power breakdown for some special users, also includes transient power quality problem.From the universal meaning quality of power supply and quality supply, including quality of voltage, current quality, power supply quality and power quality.Power quality problem can be defined as: causes electrical equipment fault or the deviation of the voltage of cisco unity malfunction, electric current or frequency, and its content includes frequency departure, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, instantaneous or transient overvoltage, wave distortion (harmonic wave), voltage dip, interruption, temporarily liter and power supply continuity etc..By to electric energy quality real-time monitoring, it is possible to obtain the current state of the quality of power supply, judge the quality of the quality of power supply accordingly and whether occur in that short circuit, overload etc. need to take the fault of protective measure.
Because when there is fluctuation or power supply trouble occur in the quality of power supply, electric current in supply line also can produce respective change, therefore the reference data of the monitoring quality of power supply it is used as usually through the current signal gathered in supply line, and supply line can select different current class according to load difference, load is more big, current class is more high, and the electric current in supply line is often relatively larger, it is possible to up to 600A.In order to protect equipment for monitoring power quality, switch to usually through permutator and be supplied to equipment for monitoring power quality as the current signal collected after the big electric current of supply line is converted to small area analysis by this no-load voltage ratio by the change-over circuit of the phase strain ratio matched with current flow grade.But permutator is as physical knob key, it is necessary to by the operation of both definite sequences, it is impossible to adjust the circuit to the phase strain ratio chosen, very flexible at once；And when high voltage supply circuit, with 10kv supply line, no-load voltage ratio 200/5 is example, when occur fault current reach 6000A even higher time (theoretic fault current is generally up to 20000A), flowing through the electric current of permutator, to be up to 150A even higher, and the electric current under permutator normal operation is typically in about 20A, it is easy to burn.
Utility model content
Therefore, the technical problems to be solved in the utility model is in that to overcome the switching between the change-over circuit carrying out different no-load voltage ratio in prior art frequently with permutator, very flexible, and break down electric current time easily burn the defect of permutator, thus provide a kind of switch flexibly, not easily by the Acquisition Circuit of big circuit damage, equipment for monitoring power quality and ring main unit.
For this, this utility model provides following technical scheme:
This utility model provides a kind of Acquisition Circuit, including: touch unit, converting unit, switch element and control unit；
Described touch unit, receives the touching signals generating correspondence after touching；
Described converting unit, including the converting branch with different no-load voltage ratio that multiple inputs are connected, the current signal inputting this converting branch is exported by each converting branch according to after strain ratio is changed；
Described switch element, including multiple switching branches, the outfan of the converting branch that the input of each switching branches is corresponding connects, and exports the current signal after the conversion of its correspondence after switch；
Described control unit, according to the switching branches that the described touching signals triggering and conducting received from described touch unit is corresponding.
Acquisition Circuit described in the utility model, described touch unit includes touch panel, multiple flat metal induction electrode and corresponding touch spring and touch induction circuit plate；
The central authorities of described flat metal induction electrode are provided with location mesopore, and the bottom surface of described touch panel is provided with the alignment pin that multiple and described location mesopore matches, and each described alignment pin inserts in the described location mesopore of its correspondence；
The top of described touch spring is fixed on corresponding described flat metal induction electrode, and the bottom of described touch spring is connected with described touch induction circuit plate；
Described touch induction circuit buttress generates corresponding touching signals according to the spring that touches of the described flat metal induction electrode within the scope of touch and correspondence thereof.
Acquisition Circuit described in the utility model, described touch panel is microcrystal glass plate.
Acquisition Circuit described in the utility model, the converting branch in described converting unit includes multiple current transformer with different no-load voltage ratio, and the input of each described current transformer primary side is connected.
Acquisition Circuit described in the utility model, switching branches in described switch element includes multiple relay, the outfan of the described Current Transformer Secondary side that the input of each described relay is corresponding connects, and the end that controls of each described relay is connected with a control signal outfan of described control unit；
Described control unit, sends control signal according to the described touching signals received from described touch unit to the control end of corresponding relay, triggers the conducting of this relay.
This utility model additionally provides a kind of equipment for monitoring power quality, including above-mentioned Acquisition Circuit and monitoring means；
Described Acquisition Circuit, the input of its converting branch is connected with power supply；
Described monitoring means, including multiple signals collecting ends, it is connected with the outfan of each switching branches in described Acquisition Circuit respectively, for the quality of power supply of described power supply being monitored according to the current signal after the described conversion received, and exports electric energy quality monitoring result.
This utility model additionally provides a kind of ring main unit, including above-mentioned Acquisition Circuit and controller；
Described Acquisition Circuit, the input of its converting branch is connected with power supply；
Described controller, including multiple signals collecting ends, is connected with the outfan of each switching branches in described Acquisition Circuit respectively, for the quality of power supply of described power supply being monitored according to the current signal after the described conversion received.
This utility model additionally provides a kind of ring main unit, including above-mentioned equipment for monitoring power quality and controller；
Described equipment for monitoring power quality, in its Acquisition Circuit, the input of converting branch is connected with power supply, for the quality of power supply of described power supply is monitored, and exports electric energy quality monitoring result；
Described controller is connected with the outfan of described equipment for monitoring power quality, receives described electric energy quality monitoring result.
Above-mentioned ring main unit, also includes breaking-closing operating unit；
The end that controls of described breaking-closing operating unit is connected with the control signal outfan of described controller；
Described controller, breaking-closing operating unit according to electric energy quality monitoring output control carries out separating brake or closing operation, disconnects or recovers the power supply to load end.
Above-mentioned ring main unit, also includes breaking-closing operating unit；
The end that controls of described breaking-closing operating unit is connected with the control signal outfan of described controller；
Described controller is connected with the outfan of the touch unit in described Acquisition Circuit, carry out separating brake or closing operation for breaking-closing operating unit according to the described touching signals received or electric energy quality monitoring output control, disconnect or recover the power supply to load end.
Technical solutions of the utility model, have the advantage that
This utility model provides a kind of Acquisition Circuit, generated by touch unit and touch corresponding touching signals and transmit to control unit, the switching branches that control unit can obtain the information relevant to the no-load voltage ratio that operator choose according to the touching signals received and triggering and conducting is in series with the no-load voltage ratio chosen, export the small area analysis after this no-load voltage ratio is changed, the selection of any no-load voltage ratio can be carried out by touch unit, without the selection and the switching that carry out no-load voltage ratio again through permutator according to both definite sequences, motility is higher, it also avoid the fault that permutator easily burns.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of one instantiation of Acquisition Circuit in this utility model embodiment 1；
Fig. 2 is the structural representation of an instantiation of the touch unit of Acquisition Circuit in this utility model embodiment 1；
Fig. 3 is the attachment structure schematic diagram of the touch unit middle plateform metal induction electrode of Acquisition Circuit in this utility model embodiment 1 and the corresponding instantiation touching spring；
Fig. 4 is the structural representation of another instantiation of the touch unit of Acquisition Circuit in this utility model embodiment 1；
Fig. 5 is the structured flowchart of an instantiation of equipment for monitoring power quality in this utility model embodiment 2；
Fig. 6 is the structured flowchart of an instantiation of ring main unit in this utility model embodiment 3；
Fig. 7 is the structured flowchart of another instantiation of ring main unit in this utility model embodiment 3；
Fig. 8 is the structured flowchart of the 3rd instantiation of ring main unit in this utility model embodiment 3；
Fig. 9 is the schematic diagram of the instantiation of the touch panel of ring main unit in this utility model embodiment 3；
Figure 10 is the structured flowchart of an instantiation of ring main unit in this utility model embodiment 4；
Figure 11 is the structured flowchart of another instantiation of ring main unit in this utility model embodiment 4；
Figure 12 is the structured flowchart of the 3rd instantiation of ring main unit in this utility model embodiment 4.
Accompanying drawing labelling:
1-touch unit；2-converting unit；3-switch element；4-control unit；11-touch panel；12-flat metal induction electrode；13-touches spring；14-touch induction circuit plate；111-alignment pin；121-positions mesopore；A-connects recessed rib；B-positions counterbore.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only for descriptive purposes, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is also possible to be the connection of two element internals, it is possible to be wireless connections, it is also possible to be wired connection.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitute conflict each other.
Embodiment 1
Present embodiments provide a kind of Acquisition Circuit, as it is shown in figure 1, include: touch unit 1, converting unit 2, switch element 3 and control unit 4.
Touch unit 1, receives the touching signals generating correspondence after touching.Specifically, touch unit 1 can select in prior art any touch screen technology to realize above-mentioned functions, such as capacitance touch inductive control technology, its core is exactly the sine wave utilizing relaxor to produce hundreds of KHz, then this sine wave signal is added on each spring conductive plate, (even if there being panel to separate when the finger of user touches spring conductive plate time, but for high-frequency signal, glass, pottery, the touch panel of the materials such as plastics is still equivalent to conductor), be equivalent to connect an electric capacity over the ground to spring conductive plate, electric capacity is utilized to lead to friendship every straight characteristic, high-frequency signal passes through capacitance partial pressure, signal level on spring conductive plate will reduce.The signal voltage of this reduction is applied on threshold dector (or be sent to comparator internal circuit process, make corresponding output end output level overturn), both can produce the touching signals corresponding with the spring conductive plate within the scope of finger touch.
Preferably, as in figure 2 it is shown, touch unit 1 includes touch panel 11, multiple flat metal induction electrode 12 and corresponding touch spring 13 and touch induction circuit plate 14.
The central authorities of flat metal induction electrode 12 are provided with location mesopore 121, and the bottom surface of touch panel 11 is provided with multiple with the location alignment pin 111 that matches of mesopore 121, and each alignment pin 111 inserts in the location mesopore 121 of its correspondence.Specifically, alignment pin 111 can be cross alignment pin, it is possible to prevent the positioning caused because of the inclination of touch panel 11.
The top touching spring 13 is fixed on corresponding flat metal induction electrode 12, and the bottom touching spring 13 is connected with touch induction circuit plate 14.Specifically, as shown in Figure 3, it is possible to the recessed rib a of some connections is set on flat metal induction electrode 12, by connecting recessed rib a, the top interlocking touching spring 13 is fixed on corresponding flat metal induction electrode 12, simple installation, good fixing effect.The bottom touching spring 13 can be directly welded on touch induction circuit plate 14, eyelet welding or surface soldered can, connect reliable.
Touch induction circuit plate 14 generates the touching signals of correspondence according to the spring 13 that touches of the flat metal induction electrode 12 within the scope of touch and correspondence thereof.Specifically, touch induction circuit plate 14 is usually special single channel sensing IC and adds peripheral circuit or the microprocessor with sensor circuit, is typically mounted on printed circuit board (PCB).Work as electric conductor, the finger of such as people touch touch panel 11 outer surface and drop on the scope of some flat metal induction electrode 12 in time, the electric conductors such as finger form the touch scope of certain area at touch panel 11 outer surface, this touch scope forms electric capacity during a bigger touch by touch panel 11 and this flat metal induction electrode 12, now touch induction circuit plate 14 by touching the Scanning Detction of the capacitance of spring 13 to each, just can detect which touches spring 13 and is touched, and generate the touching signals corresponding with the flat metal induction electrode 12 within the scope of touch and corresponding touch spring 13 thereof, by this touching signals, both the key information of the touch key-press touching spring 13 composition of flat metal induction electrode 12 and correspondence thereof can have been got, and then judge that the operation of operator is intended to.
Certainly, except by being provided with location mesopore 121 in the central authorities of flat metal induction electrode 12, the bottom surface of touch panel 11 is provided with and positions the alignment pin 111 that mesopore 121 matches, and each alignment pin 111 inserts the mode in the location mesopore 121 of its correspondence to connect outside touch panel 11 and flat metal induction electrode 12, as shown in Figure 4, can also arrange some with flat metal induction electrode 12 position at the inner surface of touch panel 11, the location counterbore b of mating shapes, flat metal induction electrode 12 is connected in the location counterbore b of its correspondence, achieve fitting tightly of flat metal induction electrode 12 and touch panel 11, improve susceptiveness and the accuracy of touch unit 1.
Preferably, touch panel 11 is microcrystal glass plate.Scratch resistant wear-resisting, it is adaptable to severe external environment condition.
Converting unit 2, including the converting branch with different no-load voltage ratio that multiple inputs are connected, the current signal inputting this converting branch is exported by each converting branch according to after strain ratio is changed.Specifically, supply line can select different current classes according to load difference, and such as metropolitan load is relatively big, will select higher current class, such as 600A；The load in rural area is less, will select relatively low current class, such as 200A；The load in cities and towns is placed in the middle, it is possible to select the current class of intermediate range, such as 400A etc..Can adopt the Acquisition Circuit in the present embodiment that supply line is carried out current sample, monitor its quality of power supply, can accessing in supply line by the input of converting branch in this Acquisition Circuit during sampling, the electric current in such supply line flows into converting branch, according to output after strain ratio is changed.When such as no-load voltage ratio is 600/5, it is possible to export after the big electric current of 600A in supply line is converted to the line current of 5A, it is possible to effectively prevent the infringement that test equipment is caused by big electric current.Separately, because the converting unit in Acquisition Circuit 2 includes multiple converting branch with different no-load voltage ratio, therefore go for the collection of the current signal of the supply line of multiple current class, applied widely.
Preferably, the converting branch in converting unit 2 includes multiple current transformer with different no-load voltage ratio, and the input of each current transformer primary side is connected.Specifically, it is possible to select open type current transformer, easy for installation, primary side bus need not be torn open, also can hot line job, do not affect client's normal electricity consumption and can realize the collection of the current signal to supply line.When gathering current signal, the big electric current of supply line, from current transformer primary side input inflow current transformer, exports small area analysis through this Current Transformer Secondary side outfan after changing according to the no-load voltage ratio of this current transformer and transmits to detecting instrument, instrument as the current signal for electric energy quality monitoring.
Switch element 3, including multiple switching branches, the outfan of the converting branch that the input of each switching branches is corresponding connects, and exports the current signal after the conversion of its correspondence after switch.Specifically, only when after the switching branches conducting connected with certain converting branch, the small area analysis after this converting branch is changed could be exported, such that it is able to arbitrarily select the converting branch of different no-load voltage ratio, without equally needing just can switch to the converting branch of the phase strain ratio chosen according to both definite sequences to permutator, control flexible and convenient.
Preferably, the switching branches in switch element 3 includes multiple relay, and the outfan of the Current Transformer Secondary side that the input of each relay is corresponding connects, and the end that controls of each relay is connected with a control signal outfan of control unit 4；Control unit 4, sends control signal according to the touching signals received from touch unit 1 to the control end of corresponding relay, triggers the conducting of this relay.Specifically, can be facilitated by control unit 4, flexibly, control the on or off of relay corresponding to the converting branch of each no-load voltage ratio accurately according to the touching signals of touch unit 1 output, and then achieve the switching between each no-load voltage ratio converting branch flexibly.And also achieve being kept completely separate between supply line and touch unit 1 by relay, further ensure that the safety of operator.Can selecting to bear the relay of 50A electric current, cost is low, even if without transfiniting when supply line's fault current is up to 2000A, it is possible to be applicable to the collection of the current signal of major part current class supply line.
Control unit 4, according to the switching branches that the touching signals triggering and conducting received from touch unit 1 is corresponding.Specifically, touch unit 1 can be divided into multiple touch scope, each touch scope can generate corresponding touching signals when being touched, such as touch unit 1 is divided into three touch scopes, first no-load voltage ratio touching scope correspondence 600/5, second no-load voltage ratio touching scope correspondence 400/5, 3rd no-load voltage ratio touching scope correspondence 200/5, if the finger of user has touched first touch scope, then can generate the touching signals relevant to 600/5 this no-load voltage ratio, control unit 4 will send control signal after receiving this touching signals, trigger the switching branches conducting being in series with the converting branch that no-load voltage ratio is 600/5, export as the current signal collected from corresponding switching branches after making big electric current be converted to small area analysis by the no-load voltage ratio of 600/5.
Acquisition Circuit in the present embodiment, generated by touch unit 1 and touch corresponding touching signals and transmit to control unit 4, the switching branches that control unit 4 can obtain the information relevant to the no-load voltage ratio that operator choose according to the touching signals received and triggering and conducting is in series with the no-load voltage ratio chosen, export the small area analysis after this no-load voltage ratio is changed, the selection of any no-load voltage ratio can be carried out by touch unit 1, without the selection and the switching that carry out no-load voltage ratio again through permutator according to both definite sequences, motility is higher, it also avoid the fault that permutator easily burns.In concrete application, the Acquisition Circuit in the present embodiment, it is possible to apply but be not limited only to equipment for monitoring power quality, ring main unit, as long as high voltage electric equipment each falls within the protection domain of the present embodiment.
Embodiment 2
Present embodiments provide a kind of equipment for monitoring power quality, as it is shown in figure 5, the Acquisition Circuit included in embodiment 1 and monitoring means.
Acquisition Circuit, the input of its converting branch is connected with power supply.
Monitoring means, including multiple signals collecting ends, is connected with the outfan of each switching branches in Acquisition Circuit respectively, for the quality of power supply of power supply being monitored according to the current signal after the conversion received, and exports electric energy quality monitoring result.
Equipment for monitoring power quality in the present embodiment, generated by the touch unit 1 in Acquisition Circuit and touch corresponding touching signals and transmit to control unit 4, the switching branches that control unit 4 can obtain the information relevant to the no-load voltage ratio that operator choose according to the touching signals received and triggering and conducting is in series with the no-load voltage ratio chosen, export the small area analysis after this no-load voltage ratio is changed, the selection of any no-load voltage ratio can be carried out by touch unit 1, without the selection and the switching that carry out no-load voltage ratio again through permutator according to both definite sequences, motility is higher, it also avoid the fault that permutator easily burns.
Embodiment 3
Present embodiments provide a kind of ring main unit, as shown in Figure 6, including the Acquisition Circuit in embodiment 1 and controller.
Acquisition Circuit, the input of its converting branch is connected with power supply.
Controller, including multiple signals collecting ends, is connected with the outfan of each switching branches in Acquisition Circuit respectively, for the quality of power supply of power supply being monitored according to the current signal after the conversion received.
Ring main unit in the present embodiment, generated by the touch unit 1 in Acquisition Circuit and touch corresponding touching signals and transmit to control unit 4, the switching branches that control unit 4 can obtain the information relevant to the no-load voltage ratio that operator choose according to the touching signals received and triggering and conducting is in series with the no-load voltage ratio chosen, export the small area analysis after this no-load voltage ratio is changed, the selection of any no-load voltage ratio can be carried out by touch unit 1, without the selection and the switching that carry out no-load voltage ratio again through permutator according to both definite sequences, motility is higher, it also avoid the fault that permutator easily burns.And need not changing the software and hardware of original ring main unit, only need to individually do one piece of keyboard platelet just can realize touch key-press function, it is readily applicable to old product transformation.
Preferably, as it is shown in fig. 7, the ring main unit in the present embodiment also includes breaking-closing operating unit；The end that controls of breaking-closing operating unit is connected with the control signal outfan of controller；Controller, carries out separating brake or closing operation according to electric energy quality monitoring output control breaking-closing operating unit, disconnects or recovers the power supply to load end.Specifically, breaking-closing operating is automatically controlled by controller according to electric energy quality monitoring result, it can be ensured that the Electrical Safety of the equipment of the load end that ring main unit connects, it is to avoid big electric current burns electrical equipment.
As another embodiment, as shown in Figure 8, the ring main unit in the present embodiment, also include breaking-closing operating unit；The end that controls of breaking-closing operating unit is connected with the control signal outfan of controller；Controller is connected with the outfan of the touch unit 1 in Acquisition Circuit, for carrying out separating brake or closing operation according to the touching signals received or electric energy quality monitoring output control breaking-closing operating unit, disconnects or recovers the power supply to load end.Specifically; the Electrical Safety of the breaking-closing operating equipment of load end to guarantee ring main unit and connect can be automatically controlled according to electric energy quality monitoring result by controller; the connection between timely separating brake disconnecting consumers end and supply line when big fault current occurs, the power supply recovered load end of closing a floodgate again after service restoration is normal；Certain controller can also according to the real needs of operator, sub-switching operation is carried out after receiving operator and contact in touch unit 1 touching signals produced by the touch scope of corresponding sub-switching operation, closing operation is carried out after receiving operator and contact in touch unit 1 touching signals produced by the touch scope of corresponding closing operation, the priority of touching signals can be set to higher level, improve the Experience Degree of user.Fig. 9 is the schematic diagram of the instantiation of a ring main unit touch panel, it can be seen that having the touch scope of multiple touch key-press to indicate on touch panel, operator can choose corresponding operation as indicated, very convenient.
Embodiment 4
Present embodiments provide another kind of ring main unit, as shown in Figure 10, including the equipment for monitoring power quality in embodiment 2 and controller；Equipment for monitoring power quality, in its Acquisition Circuit, the input of converting branch is connected with power supply, for the quality of power supply of power supply is monitored, and exports electric energy quality monitoring result；Controller is connected with the outfan of equipment for monitoring power quality, receives electric energy quality monitoring result.
Ring main unit in the present embodiment, its interior equipment for monitoring power quality, generated by the touch unit 1 in Acquisition Circuit and touch corresponding touching signals and transmit to control unit 4, the switching branches that control unit 4 can obtain the information relevant to the no-load voltage ratio that operator choose according to the touching signals received and triggering and conducting is in series with the no-load voltage ratio chosen, export the small area analysis after this no-load voltage ratio is changed, the selection of any no-load voltage ratio can be carried out by touch unit 1, without the selection and the switching that carry out no-load voltage ratio again through permutator according to both definite sequences, motility is higher, it also avoid the fault that permutator easily burns.And need not changing the software and hardware of original ring main unit, only need to individually do one piece of keyboard platelet just can realize touch key-press function, it is readily applicable to old product transformation.
Preferably, as shown in figure 11, the ring main unit in the present embodiment, also include breaking-closing operating unit；The end that controls of breaking-closing operating unit is connected with the control signal outfan of controller；Controller, carries out separating brake or closing operation according to electric energy quality monitoring output control breaking-closing operating unit, disconnects or recovers the power supply to load end.Specifically, breaking-closing operating is automatically controlled by controller according to electric energy quality monitoring result, it can be ensured that the Electrical Safety of the equipment of the load end that ring main unit connects, it is to avoid big electric current burns electrical equipment.
Preferably, as shown in figure 12, the ring main unit in the present embodiment, also include breaking-closing operating unit；The end that controls of breaking-closing operating unit is connected with the control signal outfan of controller；Controller is connected with the outfan of the touch unit 1 in Acquisition Circuit, for carrying out separating brake or closing operation according to the touching signals received or electric energy quality monitoring output control breaking-closing operating unit, disconnects or recovers the power supply to load end.Specifically; can to automatically control the Electrical Safety of the breaking-closing operating equipment of load end to guarantee ring main unit and connect according to the electric energy quality monitoring result received from equipment for monitoring power quality by controller; the connection between timely separating brake disconnecting consumers end and supply line when big fault current occurs, the power supply recovered load end of closing a floodgate again after service restoration is normal；Certain controller can also according to the real needs of operator, sub-switching operation is carried out after receiving operator and contact in touch unit 1 touching signals produced by the touch scope of corresponding sub-switching operation, closing operation is carried out after receiving operator and contact in touch unit 1 touching signals produced by the touch scope of corresponding closing operation, the priority of touching signals can be set to higher level, improve the Experience Degree of user.
Obviously, above-described embodiment is only for clearly demonstrating example, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the apparent change thus extended out or variation still in this utility model create protection domain among.
Claims (10)
1. an Acquisition Circuit, it is characterised in that including: touch unit (1), converting unit (2), switch element (3) and control unit (4)；
Described touch unit (1), receives the touching signals generating correspondence after touching；
Described converting unit (2), including the converting branch with different no-load voltage ratio that multiple inputs are connected, the current signal inputting this converting branch is exported by each converting branch according to after strain ratio is changed；
Described switch element (3), including multiple switching branches, the outfan of the converting branch that the input of each switching branches is corresponding connects, and exports the current signal after the conversion of its correspondence after switch；
Described control unit (4), according to the switching branches that the described touching signals triggering and conducting received from described touch unit (1) is corresponding.
2. Acquisition Circuit according to claim 1, it is characterized in that, described touch unit (1) includes touch panel (11), multiple flat metal induction electrode (12) and corresponding touch spring (13) and touch induction circuit plate (14)；
The central authorities of described flat metal induction electrode (12) are provided with location mesopore (121), the bottom surface of described touch panel (11) is provided with the alignment pin (111) that multiple and described location mesopore (121) matches, and each described alignment pin (111) inserts in described location mesopore (121) of its correspondence；
The top of described touch spring (13) is fixed on corresponding described flat metal induction electrode (12), and the bottom of described touch spring (13) is connected with described touch induction circuit plate (14)；
Described touch induction circuit plate (14) generates corresponding touching signals according to the touch spring (13) of the described flat metal induction electrode (12) within the scope of touch and correspondence thereof.
3. Acquisition Circuit according to claim 2, it is characterised in that described touch panel (11) is microcrystal glass plate.
4. the Acquisition Circuit according to any one of claim 1-3, it is characterised in that the converting branch in described converting unit (2) includes multiple current transformer with different no-load voltage ratio, and the input of each described current transformer primary side is connected.
5. Acquisition Circuit according to claim 4, it is characterized in that, switching branches in described switch element (3) includes multiple relay, the outfan of the described Current Transformer Secondary side that the input of each described relay is corresponding connects, and the control end of each described relay is connected with a control signal outfan of described control unit (4)；
Described control unit (4), sends control signal according to the described touching signals received from described touch unit (1) to the control end of corresponding relay, triggers the conducting of this relay.
6. an equipment for monitoring power quality, it is characterised in that include the Acquisition Circuit described in any one of claim 1-5 and monitoring means；
Described Acquisition Circuit, the input of its converting branch is connected with power supply；
Described monitoring means, including multiple signals collecting ends, it is connected with the outfan of each switching branches in described Acquisition Circuit respectively, for the quality of power supply of described power supply being monitored according to the current signal after the described conversion received, and exports electric energy quality monitoring result.
7. a ring main unit, it is characterised in that include the Acquisition Circuit described in any one of claim 1-5 and controller；
Described Acquisition Circuit, the input of its converting branch is connected with power supply；
Described controller, including multiple signals collecting ends, is connected with the outfan of each switching branches in described Acquisition Circuit respectively, for the quality of power supply of described power supply being monitored according to the current signal after the described conversion received.
8. a ring main unit, it is characterised in that include the equipment for monitoring power quality described in claim 6 and controller；
Described equipment for monitoring power quality, in its Acquisition Circuit, the input of converting branch is connected with power supply, for the quality of power supply of described power supply is monitored, and exports electric energy quality monitoring result；
Described controller is connected with the outfan of described equipment for monitoring power quality, receives described electric energy quality monitoring result.
9. the ring main unit according to claim 7 or 8, it is characterised in that also include breaking-closing operating unit；
The end that controls of described breaking-closing operating unit is connected with the control signal outfan of described controller；
Described controller, breaking-closing operating unit according to electric energy quality monitoring output control carries out separating brake or closing operation, disconnects or recovers the power supply to load end.
10. the ring main unit according to claim 7 or 8, it is characterised in that also include breaking-closing operating unit；
The end that controls of described breaking-closing operating unit is connected with the control signal outfan of described controller；
Described controller is connected with the outfan of the touch unit (1) in described Acquisition Circuit, carry out separating brake or closing operation for breaking-closing operating unit according to the described touching signals received or electric energy quality monitoring output control, disconnect or recover the power supply to load end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131018.XU CN205353167U (en) | 2016-02-19 | 2016-02-19 | Acquisition circuit , Power quality monitor device and looped netowrk cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131018.XU CN205353167U (en) | 2016-02-19 | 2016-02-19 | Acquisition circuit , Power quality monitor device and looped netowrk cabinet |
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| CN205353167U true CN205353167U (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548642A (en) * | 2016-02-19 | 2016-05-04 | 浙江华仪电器科技有限公司 | Collection circuit, electric energy quality monitoring device and ring main unit |
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- 2016-02-19 CN CN201620131018.XU patent/CN205353167U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548642A (en) * | 2016-02-19 | 2016-05-04 | 浙江华仪电器科技有限公司 | Collection circuit, electric energy quality monitoring device and ring main unit |
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