CN105548642A - Collection circuit, electric energy quality monitoring device and ring main unit - Google Patents
Collection circuit, electric energy quality monitoring device and ring main unit Download PDFInfo
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- CN105548642A CN105548642A CN201610093527.2A CN201610093527A CN105548642A CN 105548642 A CN105548642 A CN 105548642A CN 201610093527 A CN201610093527 A CN 201610093527A CN 105548642 A CN105548642 A CN 105548642A
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- acquisition circuit
- power supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/08—Circuits for altering the measuring range
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Electronic Switches (AREA)
Abstract
The invention provides a collection circuit, an electric energy quality monitoring device and a ring main unit. The collection circuit generates a touch signal corresponding to touch through a touch unit and transmits the touch signal to a control unit. The control unit can obtain information related to conversion branches with transformation ratios selected by operators and trigger and power on switch branches connected with the conversion branches with the selected transformation ratios in series according to the received touch signal, small current subjected to transmission ratio conversion is output, selection of the conversion branches with any transmission ratios can be conducted through the touch unit 1 without selecting or switching the transmission ratios through a conversion switch according to a set sequence, flexibility is higher, and the fault that the conversion switch is prone to burnout is also avoided.
Description
Technical field
The present invention relates to technical field of electric power, be 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 damage whole production run, thus cause a large amount of economic losses.Interference from current, for some special users not only just long power breakdown, also comprises transient power quality problem.From the universal significance quality of power supply and quality supply, comprise quality of voltage, current quality, power supply quality and power quality.Power quality problem can be defined as: the deviation causing the voltage of consumer fault or cisco unity malfunction, electric current or frequency, and its content comprises frequency departure, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, instantaneous or transient overvoltage, wave form distortion (harmonic wave), voltage dip, interruption, temporary liter and power supply continuity etc.By to electric energy quality real-time monitoring, the current state of the quality of power supply can be obtained, judge the quality of the quality of power supply accordingly and whether occurred that short circuit, overload etc. need to take the fault of safeguard 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 monitoring the quality of power supply 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 larger, current class is higher, and electric current in supply line is often larger, likely up to 600A.In order to protect equipment for monitoring power quality, switching to usually through switch in the change-over circuit of the phase strain ratio matched with current flow grade and being supplied to equipment for monitoring power quality as the current signal collected after the big current of supply line is converted to small area analysis by this no-load voltage ratio.But switch is as physical knob key, by set sequential operation, must can not be adjusted to the circuit of 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), it is even higher that the electric current flowing through switch will reach 150A, and the electric current under switch normal operation is generally at about 20A, easily burn.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome normal employing switch in prior art and carries out the switching between the change-over circuit of different no-load voltage ratio, very flexible, and break down electric current time easily burn the defect of switch, thus provide a kind of and switch flexibly, not easily by Acquisition Circuit, equipment for monitoring power quality and ring main unit that big current damages.
For this reason, the invention provides following technical scheme:
The invention provides a kind of Acquisition Circuit, comprising: touch unit, converting unit, switch element and control module;
Described touch unit, receives after touching and generates corresponding touching signals;
Described converting unit, comprises the converting branch with different no-load voltage ratio that multiple input end is connected, and the current signal of this converting branch of input is changed rear output according to strain ratio by each converting branch;
Described switch element, comprises multiple switching branches, and the output terminal of the converting branch that the input end of each switching branches is corresponding with it connects, and exports the current signal after the conversion of its correspondence after switch;
Described control module, the switching branches corresponding according to the described touching signals triggering and conducting received from described touch unit.
Acquisition Circuit of the present invention, described touch unit comprises touch panel, multiple flat metal induction electrode and the touch spring corresponding with it 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 register pin that multiple and described location mesopore matches, and each described register pin inserts in the described location mesopore of its correspondence;
The top of described touch spring is fixed on the described flat metal induction electrode corresponding with it, 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 touch spring of the described flat metal induction electrode within the scope of touch and correspondence thereof.
Acquisition Circuit of the present invention, described touch panel is microcrystal glass plate.
Acquisition Circuit of the present invention, the converting branch in described converting unit comprises multiple current transformer with different no-load voltage ratio, and the input end of each described current transformer primary side is connected.
Acquisition Circuit of the present invention, switching branches in described switch element comprises multiple relay, the output terminal of the described Current Transformer Secondary side that the input end of each described relay is corresponding with it connects, and the control end of each described relay is connected with a control signal output terminal of described control module;
Described control module, sends control signal according to the described touching signals received from described touch unit to the control end of the relay of correspondence, triggers this relay conducting.
Present invention also offers a kind of equipment for monitoring power quality, comprise above-mentioned Acquisition Circuit and monitoring means;
Described Acquisition Circuit, the input end of its converting branch is connected with power supply;
Described monitoring means, comprise multiple signals collecting end, being connected with the output terminal of each switching branches in described Acquisition Circuit respectively, for monitoring according to the quality of power supply of current signal to described power supply after the described conversion received, and exporting electric energy quality monitoring result.
Present invention also offers a kind of ring main unit, comprise above-mentioned Acquisition Circuit and controller;
Described Acquisition Circuit, the input end of its converting branch is connected with power supply;
Described controller, comprises multiple signals collecting end, is connected respectively with the output terminal of each switching branches in described Acquisition Circuit, for monitoring according to the quality of power supply of current signal to described power supply after the described conversion received.
Present invention also offers a kind of ring main unit, comprise above-mentioned equipment for monitoring power quality and controller;
Described equipment for monitoring power quality, in its Acquisition Circuit, the input end of converting branch is connected with power supply, for monitoring the quality of power supply of described power supply, and exports electric energy quality monitoring result;
Described controller is connected with the output terminal of described equipment for monitoring power quality, receives described electric energy quality monitoring result.
Above-mentioned ring main unit, also comprises breaking-closing operating unit;
The control end of described breaking-closing operating unit is connected with the control signal output terminal of described controller;
Described controller, according to electric energy quality monitoring output control, breaking-closing operating unit carries out separating brake or closing operation, disconnects or recovers the power supply to load end.
Above-mentioned ring main unit, also comprises breaking-closing operating unit;
The control end of described breaking-closing operating unit is connected with the control signal output terminal of described controller;
Described controller is connected with the output terminal 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 solution of the present invention, tool has the following advantages:
The invention provides a kind of Acquisition Circuit, generated by touch unit and touch corresponding touching signals and transfer to control module, control module can obtain the information relevant to the no-load voltage ratio that operating personnel choose according to the touching signals received and the switching branches that is in series of triggering and conducting and the no-load voltage ratio chosen, export the small area analysis after the conversion of this no-load voltage ratio, the selection of any no-load voltage ratio can be carried out by touch unit 1, and without the need to carrying out selection and the switching of no-load voltage ratio by switch according to both definite sequences again, dirigibility is higher, it also avoid the fault that switch easily burns.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of an Acquisition Circuit instantiation in the embodiment of the present invention 1;
Fig. 2 is the structural representation of an instantiation of the touch unit of Acquisition Circuit in the embodiment of the present invention 1;
Fig. 3 is the syndeton schematic diagram of the touch unit middle plateform metal induction electrode of Acquisition Circuit in the embodiment of the present invention 1 and an instantiation of the touch spring corresponding with it;
Fig. 4 is the structural representation of another instantiation of the touch unit of Acquisition Circuit in the embodiment of the present invention 1;
Fig. 5 is the structured flowchart of an instantiation of equipment for monitoring power quality in the embodiment of the present invention 2;
Fig. 6 is the structured flowchart of an instantiation of ring main unit in the embodiment of the present invention 3;
Fig. 7 is the structured flowchart of another instantiation of ring main unit in the embodiment of the present invention 3;
Fig. 8 is the structured flowchart of the 3rd instantiation of ring main unit in the embodiment of the present invention 3;
Fig. 9 is the schematic diagram of the instantiation of the touch panel of ring main unit in the embodiment of the present invention 3;
Figure 10 is the structured flowchart of an instantiation of ring main unit in the embodiment of the present invention 4;
Figure 11 is the structured flowchart of another instantiation of ring main unit in the embodiment of the present invention 4;
Figure 12 is the structured flowchart of the 3rd instantiation of ring main unit in the embodiment of the present invention 4.
Reference numeral:
1-touch unit; 2-converting unit; 3-switch element; 4-control module; 11-touch panel; 12-flat metal induction electrode; 13-touches spring; 14-touch induction circuit plate; 111-register pin; 121-locates mesopore; A-connects recessed rib; B-locates counterbore.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, 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 " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In addition, if below in the described different embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment 1
Present embodiments provide a kind of Acquisition Circuit, as shown in Figure 1, comprising: touch unit 1, converting unit 2, switch element 3 and control module 4.
Touch unit 1, receives after touching and generates corresponding touching signals.Particularly, touch unit 1 can to select in prior art any one 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, when user finger contact to when spring conductive plate (even if there is panel to separate, 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, utilize electric capacity to lead to hand over every straight characteristic, high-frequency signal passes through capacitance partial pressure, signal level on spring conductive plate will reduce.This signal voltage reduced is applied on threshold dector (or be sent to comparer internal circuit and process, corresponding output end output level is overturn), both can produce the touching signals corresponding with the spring conductive plate within the scope of finger touch.
Preferably, as shown in Figure 2, touch unit 1 comprises touch panel 11, multiple flat metal induction electrode 12 and the touch spring 13 corresponding with it 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 register pin 111 matched with location mesopore 121, and each register pin 111 inserts in the location mesopore 121 of its correspondence.Particularly, register pin 111 can be cruciform register pin, can prevent the positioning caused because of the inclination of touch panel 11.
The top touching spring 13 is fixed on the flat metal induction electrode 12 corresponding with it, and the bottom touching spring 13 is connected with touch induction circuit plate 14.Particularly, as shown in Figure 3, the recessed rib a of some connections can being set on flat metal induction electrode 12, by connecting recessed rib a, the top interlocking touching spring 13 being fixed on the flat metal induction electrode 12 corresponding with it, simple installation, good fixing effect.Touch the bottom of spring 13 can directly be welded on touch induction circuit plate 14, eyelet welding or surface-welding can, connect reliable.
Touch induction circuit plate 14 generates corresponding touching signals according to the touch spring 13 of the flat metal induction electrode 12 within the scope of touch and correspondence thereof.Particularly, touch induction circuit plate 14 is generally that special single channel induction IC adds peripheral circuit, or the microprocessor of band sensor circuit, and general installation on a printed circuit.Work as electric conductor, such as, when the finger touch of people is to touch panel 11 outside surface and in the scope dropping on some flat metal induction electrodes 12, the electric conductors such as finger form the touch scope of certain area at touch panel 11 outside surface, electric capacity when this touch scope forms a larger touch by touch panel 11 and this flat metal induction electrode 12, now touch induction circuit plate 14 is 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, the key information of the touch key-press that the touch spring 13 that both can get flat metal induction electrode 12 and correspondence thereof forms, and then judge the operation intention of operating personnel.
Certainly, except locating mesopore 121 by being provided with in the central authorities of flat metal induction electrode 12, the bottom surface of touch panel 11 is provided with and the register pin 111 of locating mesopore 121 and matching, and each register pin 111 inserts 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 inside 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 sensitivity and the accuracy of touch unit 1.
Preferably, touch panel 11 is microcrystal glass plate.Scratch resistant wear-resisting, be applicable to severe external environment condition.
Converting unit 2, comprises the converting branch with different no-load voltage ratio that multiple input end is connected, and the current signal of this converting branch of input is changed rear output according to strain ratio by each converting branch.Particularly, supply line can select different current classes according to load difference, and such as metropolitan load is comparatively large, will select higher current class, such as 600A; The load in rural area is less, will select lower current class, such as 200A; The load in cities and towns is placed in the middle, can select the current class of intermediate range, such as 400A etc.The Acquisition Circuit in the present embodiment can be adopted to carry out current sample to supply line, monitor its quality of power supply, can by the input end of converting branch in this Acquisition Circuit access supply line during sampling, the electric current in such supply line flows into converting branch, exports according to after strain ratio conversion.When such as no-load voltage ratio is 600/5, just the big current of 600A in supply line can be exported after being converted to the line current of 5A, effectively can prevent the infringement that big current causes testing apparatus.Separately, because the converting unit in Acquisition Circuit 2 comprises 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 comprises multiple current transformer with different no-load voltage ratio, and the input end of each current transformer primary side is connected.Particularly, can open type current transformer be selected, easy for installation, primary side bus need not be torn open, also can hot line job, do not affect the collection that client's normal electricity consumption can realize the current signal to supply line.When gathering current signal, the big current of supply line, from current transformer primary side input end inflow current mutual inductor, exports small area analysis according to after the no-load voltage ratio conversion of this current transformer through this Current Transformer Secondary side output terminal and transfers to detecting instrument, instrument as the current signal for electric energy quality monitoring.
Switch element 3, comprises multiple switching branches, and the output terminal of the converting branch that the input end of each switching branches is corresponding with it connects, and exports the current signal after the conversion of its correspondence after switch.Particularly, only have when after the switching branches conducting of connecting with certain converting branch, the small area analysis after the conversion of this converting branch could be exported, thus the converting branch of different no-load voltage ratio can be selected arbitrarily, just can switch to the converting branch of the phase strain ratio chosen without the need to equally needing to switch according to both definite sequences, controlling flexible and convenient.
Preferably, the switching branches in switch element 3 comprises multiple relay, and the output terminal of the Current Transformer Secondary side that the input end of each relay is corresponding with it connects, and the control end of each relay is connected with a control signal output terminal of control module 4; Control module 4, sends control signal according to the touching signals received from touch unit 1 to the control end of the relay of correspondence, triggers this relay conducting.Particularly, the touching signals can be facilitated by control module 4, exported according to touch unit 1 flexibly, accurately controls conducting or the cut-off of relay corresponding to the converting branch of each no-load voltage ratio, and then achieves the switching between each no-load voltage ratio converting branch flexibly.And also achieve being separated completely between supply line with touch unit 1 by relay, further ensure that the safety of operating personnel.Can select the relay that can bear 50A electric current, cost is low, even if supply line's fault current also can not transfinite up to during 2000A, can be applicable to the collection of the current signal of most of current class supply line.
Control module 4, the switching branches corresponding according to the touching signals triggering and conducting received from touch unit 1.Particularly, 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, the no-load voltage ratio of first touch scope correspondence 600/5, the no-load voltage ratio of second touch scope correspondence 400/5, the no-load voltage ratio of the 3rd touch 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 signal will be sent after control module 4 receives this touching signals, trigger with no-load voltage ratio be 600/5 the switching branches conducting that is in series of converting branch, make big current by 600/5 no-load voltage ratio be converted to small area analysis after export as the current signal collected from the switching branches of correspondence.
Acquisition Circuit in the present embodiment, generated by touch unit 1 and touch corresponding touching signals and transfer to control module 4, control module 4 can obtain the information relevant to the no-load voltage ratio that operating personnel choose according to the touching signals received and the switching branches that is in series of triggering and conducting and the no-load voltage ratio chosen, export the small area analysis after the conversion of this no-load voltage ratio, the selection of any no-load voltage ratio can be carried out by touch unit 1, and without the need to carrying out selection and the switching of no-load voltage ratio by switch according to both definite sequences again, dirigibility is higher, it also avoid the fault that switch easily burns.In embody rule, the Acquisition Circuit in the present embodiment, can apply but be not limited only to equipment for monitoring power quality, ring main unit, as long as high voltage electric equipment all falls in the protection domain of the present embodiment.
Embodiment 2
Present embodiments provide a kind of equipment for monitoring power quality, as shown in Figure 5, comprise the Acquisition Circuit in embodiment 1 and monitoring means.
Acquisition Circuit, the input end of its converting branch is connected with power supply.
Monitoring means, comprises multiple signals collecting end, is connected respectively with the output terminal of each switching branches in Acquisition Circuit, for monitoring according to the quality of power supply of current signal to power supply 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 transfer to control module 4, control module 4 can obtain the information relevant to the no-load voltage ratio that operating personnel choose according to the touching signals received and the switching branches that is in series of triggering and conducting and the no-load voltage ratio chosen, export the small area analysis after the conversion of this no-load voltage ratio, the selection of any no-load voltage ratio can be carried out by touch unit 1, and without the need to carrying out selection and the switching of no-load voltage ratio by switch according to both definite sequences again, dirigibility is higher, it also avoid the fault that switch easily burns.
Embodiment 3
Present embodiments provide a kind of ring main unit, as shown in Figure 6, comprise the Acquisition Circuit in embodiment 1 and controller.
Acquisition Circuit, the input end of its converting branch is connected with power supply.
Controller, comprises multiple signals collecting end, is connected respectively with the output terminal of each switching branches in Acquisition Circuit, for monitoring according to the quality of power supply of current signal to power supply 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 transfer to control module 4, control module 4 can obtain the information relevant to the no-load voltage ratio that operating personnel choose according to the touching signals received and the switching branches that is in series of triggering and conducting and the no-load voltage ratio chosen, export the small area analysis after the conversion of this no-load voltage ratio, the selection of any no-load voltage ratio can be carried out by touch unit 1, and without the need to carrying out selection and the switching of no-load voltage ratio by switch according to both definite sequences again, dirigibility is higher, it also avoid the fault that switch easily burns.And do not need the software and hardware changing original ring main unit, only need do separately one piece of keyboard platelet just can realize touch key-press function, be applicable to very much old product transformation.
Preferably, as shown in Figure 7, the ring main unit in the present embodiment also comprises breaking-closing operating unit; The control end of breaking-closing operating unit is connected with the control signal output terminal 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.Particularly, automatically control breaking-closing operating by controller according to electric energy quality monitoring result, the Electrical Safety of the equipment of the load end that ring main unit connects can be guaranteed, avoid big current to burn consumer.
As another kind of embodiment, as shown in Figure 8, the ring main unit in the present embodiment, also comprises breaking-closing operating unit; The control end of breaking-closing operating unit is connected with the control signal output terminal of controller; Controller is connected with the output terminal 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, disconnecting or recovering the power supply to load end.Particularly, breaking-closing operating can be automatically controlled to guarantee the Electrical Safety of the equipment of the load end that ring main unit connects according to electric energy quality monitoring result by controller, connection when there is large fault current between timely separating brake disconnecting consumers end and supply line, the power supply recovered load end of closing a floodgate again after service restoration is normal; Certain controller also can according to the real needs of operating personnel, sub-switching operation is carried out after receiving the touching signals that touch scope that operating personnel contact corresponding sub-switching operation in touch unit 1 produces, closing operation is carried out after receiving the touching signals that touch scope that operating personnel contact corresponding closing operation in touch unit 1 produces, 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, and can see that touch scope touch panel having multiple touch key-press indicates, operating personnel can choose corresponding operation as indicated, very convenient.
Embodiment 4
Present embodiments provide another kind of ring main unit, as shown in Figure 10, comprise the equipment for monitoring power quality in embodiment 2 and controller; Equipment for monitoring power quality, in its Acquisition Circuit, the input end of converting branch is connected with power supply, for monitoring the quality of power supply of power supply, and exports electric energy quality monitoring result; Controller is connected with the output terminal of equipment for monitoring power quality, receives electric energy quality monitoring result.
Ring main unit in the present embodiment, equipment for monitoring power quality in it, generated by the touch unit 1 in Acquisition Circuit and touch corresponding touching signals and transfer to control module 4, control module 4 can obtain the information relevant to the no-load voltage ratio that operating personnel choose according to the touching signals received and the switching branches that is in series of triggering and conducting and the no-load voltage ratio chosen, export the small area analysis after the conversion of this no-load voltage ratio, the selection of any no-load voltage ratio can be carried out by touch unit 1, and without the need to carrying out selection and the switching of no-load voltage ratio by switch according to both definite sequences again, dirigibility is higher, it also avoid the fault that switch easily burns.And do not need the software and hardware changing original ring main unit, only need do separately one piece of keyboard platelet just can realize touch key-press function, be applicable to very much old product transformation.
Preferably, as shown in figure 11, the ring main unit in the present embodiment, also comprises breaking-closing operating unit; The control end of breaking-closing operating unit is connected with the control signal output terminal 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.Particularly, automatically control breaking-closing operating by controller according to electric energy quality monitoring result, the Electrical Safety of the equipment of the load end that ring main unit connects can be guaranteed, avoid big current to burn consumer.
Preferably, as shown in figure 12, the ring main unit in the present embodiment, also comprises breaking-closing operating unit; The control end of breaking-closing operating unit is connected with the control signal output terminal of controller; Controller is connected with the output terminal 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, disconnecting or recovering the power supply to load end.Particularly, the electric energy quality monitoring result can come according to receiving from equipment for monitoring power quality by controller controls breaking-closing operating automatically to guarantee the Electrical Safety of the equipment of the load end that ring main unit connects, connection when there is large fault current between timely separating brake disconnecting consumers end and supply line, the power supply recovered load end of closing a floodgate again after service restoration is normal; Certain controller also can according to the real needs of operating personnel, sub-switching operation is carried out after receiving the touching signals that touch scope that operating personnel contact corresponding sub-switching operation in touch unit 1 produces, closing operation is carried out after receiving the touching signals that touch scope that operating personnel contact corresponding closing operation in touch unit 1 produces, 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 example being described, and the restriction not 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 exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (10)
1. an Acquisition Circuit, is characterized in that, comprising: touch unit (1), converting unit (2), switch element (3) and control module (4);
Described touch unit (1), receives after touching and generates corresponding touching signals;
Described converting unit (2), comprises the converting branch with different no-load voltage ratio that multiple input end is connected, and the current signal of this converting branch of input is changed rear output according to strain ratio by each converting branch;
Described switch element (3), comprises multiple switching branches, and the output terminal of the converting branch that the input end of each switching branches is corresponding with it connects, and exports the current signal after the conversion of its correspondence after switch;
Described control module (4), the switching branches corresponding according to the described touching signals triggering and conducting received from described touch unit (1).
2. Acquisition Circuit according to claim 1, it is characterized in that, described touch unit (1) comprises touch panel (11), multiple flat metal induction electrode (12) and the touch spring (13) corresponding with it 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 register pin (111) that multiple and described location mesopore (121) matches, and each described register pin (111) inserts in described location mesopore (121) of its correspondence;
The top of described touch spring (13) is fixed on the described flat metal induction electrode (12) corresponding with it, 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, is characterized in that, described touch panel (11) is microcrystal glass plate.
4. the Acquisition Circuit according to any one of claim 1-3, is characterized in that, the converting branch in described converting unit (2) comprises multiple current transformer with different no-load voltage ratio, and the input end 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) comprises multiple relay, the output terminal of the described Current Transformer Secondary side that the input end of each described relay is corresponding with it connects, and the control end of each described relay is connected with a control signal output terminal of described control module (4);
Described control module (4), sends control signal according to the described touching signals received from described touch unit (1) to the control end of the relay of correspondence, triggers this relay conducting.
6. an equipment for monitoring power quality, is characterized in that, comprises the Acquisition Circuit described in any one of claim 1-5 and monitoring means;
Described Acquisition Circuit, the input end of its converting branch is connected with power supply;
Described monitoring means, comprise multiple signals collecting end, being connected with the output terminal of each switching branches in described Acquisition Circuit respectively, for monitoring according to the quality of power supply of current signal to described power supply after the described conversion received, and exporting electric energy quality monitoring result.
7. a ring main unit, is characterized in that, comprises the Acquisition Circuit described in any one of claim 1-5 and controller;
Described Acquisition Circuit, the input end of its converting branch is connected with power supply;
Described controller, comprises multiple signals collecting end, is connected respectively with the output terminal of each switching branches in described Acquisition Circuit, for monitoring according to the quality of power supply of current signal to described power supply after the described conversion received.
8. a ring main unit, is characterized in that, comprises equipment for monitoring power quality according to claim 6 and controller;
Described equipment for monitoring power quality, in its Acquisition Circuit, the input end of converting branch is connected with power supply, for monitoring the quality of power supply of described power supply, and exports electric energy quality monitoring result;
Described controller is connected with the output terminal 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, is characterized in that, also comprises breaking-closing operating unit;
The control end of described breaking-closing operating unit is connected with the control signal output terminal of described controller;
Described controller, according to electric energy quality monitoring output control, breaking-closing operating unit 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, is characterized in that, also comprises breaking-closing operating unit;
The control end of described breaking-closing operating unit is connected with the control signal output terminal of described controller;
Described controller is connected with the output terminal 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 |
|---|---|---|---|
| CN201610093527.2A CN105548642A (en) | 2016-02-19 | 2016-02-19 | Collection circuit, electric energy quality monitoring device and ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093527.2A CN105548642A (en) | 2016-02-19 | 2016-02-19 | Collection circuit, electric energy quality monitoring device and ring main unit |
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| Publication Number | Publication Date |
|---|---|
| CN105548642A true CN105548642A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610093527.2A Pending CN105548642A (en) | 2016-02-19 | 2016-02-19 | Collection circuit, electric energy quality monitoring device and ring main unit |
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| Country | Link |
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| CN (1) | CN105548642A (en) |
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| CN112737100A (en) * | 2020-12-02 | 2021-04-30 | 深圳供电局有限公司 | Ring main unit touch screen control system |
| CN113804989A (en) * | 2021-11-17 | 2021-12-17 | 武汉磐电科技股份有限公司 | Method, device, equipment and storage medium for calibrating variable ratio group tester |
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Application publication date: 20160504 |