CN207559567U - A kind of Low-voltage Line Loss intelligent compensation terminal - Google Patents
A kind of Low-voltage Line Loss intelligent compensation terminal Download PDFInfo
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- CN207559567U CN207559567U CN201721618427.3U CN201721618427U CN207559567U CN 207559567 U CN207559567 U CN 207559567U CN 201721618427 U CN201721618427 U CN 201721618427U CN 207559567 U CN207559567 U CN 207559567U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a kind of Low-voltage Line Loss intelligent compensation terminals, it includes outer housing and terminal control system, and terminal control system includes control unit（3）, metering units（5）, capacitor group（4）, main control unit（1）And display unit（2）, the Low-voltage Line Loss intelligent compensation terminal that is made of outer housing and terminal control system is directly mounted in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.The Low-voltage Line Loss intelligent compensation terminal of the utility model is, it can be achieved that user side Low-voltage Line Loss compensates, compared with conventional low voltage reactive power compensator, volume smaller, and integration degree higher；It is directly mounted in the batch meter or cable branch box of load-side, the loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively inhibit and harmonic carcellation；Meanwhile plant maintenance is convenient, failure rate is relatively low；More importantly compared with present compensation technique, this terminal can realize the adjustment of low current operating passing zero and reactive compensation capacity.
Description
Technical field
The utility model is related to reactive power compensation technology, particularly power factor of electric network be relatively low, reactive power line loss is inclined
A kind of big single-phase inductive load electrical domain, and in particular to Low-voltage Line Loss intelligent compensation terminal.
Background technology
With quickly propelling for national urbanization process, a large amount of people such as inhabitation building, luxury stores, hotel, office
It is rised sheer from level ground in city with building, urban power consumption also rapid growth therewith.It is but more used in these civil buildings fields
For single-phase inductive load, cause low voltage electric network power factor seriously relatively low, reactive power line loss is seriously bigger than normal.This and state
The policy of " energy-saving and emission-reduction, environmentally protective " before family belongings is incompatible.It is to improve power quality, excavate electricity using reactive-load compensation
Net potentiality reduce the effective method of line loss.
Reactive power problem generally existing electric energy " hair, it is defeated, become, match, with " in five links, power system stability is transported
Row generates many adverse effects.At present low-voltage power distribution station area reactive power compensator with centralized intelligence capacitor group compensation based on,
Intelligent capacitor group is connected on distribution transformer low-voltage bus bar side, according to the Reactive Power Control intelligent capacitor group on low-voltage bus bar
Switching, compensating power improves distribution transforming utilization rate, while plays iris action, prevent reactive power to a certain extent
It swarms into upper level power grid and causes voltage fluctuation, reduce network loss.Centralization compensation is only capable of reducing distribution transformer because conveying idle work(
Loss caused by rate, can not reduce the line loss of the low pressure basic routing line caused by reactive current, loss-reducing and electricity-saving benefit by
Limitation can not be solved because of the line end low-voltage caused by reactive current is excessive the problems such as.
With reference to the miniaturization of Power Electronic Technique in recent years, integrated development trend, by idle compensating control and intelligence
Capacitor group carries out integration and Miniaturization Design, reduces equipment volume, can be directly mounted in the electricity box of load-side,
Realize multigroup dispersion tip compensation function of reactive power inside low voltage electric network.Relative to centralized compensation scheme, can not only drop
Loss of the low distribution transformer caused by conveying reactive power, can also mitigate low pressure basic routing line line loss, reach and more preferably save
Electricity, drop damage purpose.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of Low-voltage Line Loss intelligent compensation terminal, the compensation
Terminal is made of outer housing and terminal control system, and terminal control system has control unit, metering units, capacitor group, master
Control unit and display unit.The Low-voltage Line Loss intelligent compensation terminal of the utility model is directly mounted in user side batch meter, shape
Multigroup dispersion compensation of reactive power inside into low voltage electric network.The Low-voltage Line Loss intelligent compensation terminal of the utility model realizes user
Side Low-voltage Line Loss compensation, compared with conventional low voltage reactive power compensator, volume smaller, integration degree higher.
To achieve these goals, the utility model adopts the following technical solution.
A kind of Low-voltage Line Loss intelligent compensation terminal, including outer housing and terminal control system, the terminal control system packet
Include control unit, metering units, capacitor group, main control unit and display unit；The main control unit shows and leads to including master control
Believe module；The display unit includes liquid crystal display interface；Described control unit includes magnetic latching relay switch module, terminal
Power conversion module and analog signal sampling module；The metering units include electric current and measure sampling module；The capacitor group
For integrated capacitors；The master control is shown and communication module measures sampling module, terminal supplying power modular converter with electric current respectively
And analog signal sampling module is connected；The electric current metering sampling module is sampled with terminal supplying power modular converter and analog signal
Module is connected；The integrated capacitors are integral type capacitor.
Preferably, the above-mentioned Low-voltage Line Loss intelligent compensation terminal being made of outer housing and terminal control system, directly
It is installed in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.
In any of the above-described technical solution preferably, described control unit, metering units, capacitor group, main control unit
It is integrated in inside Low-voltage Line Loss intelligent compensation terminal enclosure body with display unit, each functional unit is designed for integrated form；Capacitor
Group is located at bottom in Low-voltage Line Loss intelligent compensation terminal shell；Control unit is installed on above capacitor group；Metering units are direct
Be fixed in outer housing, linked together by 1 group of double-row needle with control unit, and pass through 2 groups of soft arranging wires and one group of row's needle with
Main control unit connects；Display unit is located above main control unit.
In any of the above-described technical solution preferably, the outer housing includes positive upper cover and back side bottom case, on front
Lid is fixed with back side bottom case by hinge.
In any of the above-described technical solution preferably, control unit, master control list is fixedly mounted in the back side bottom shell
The circuit board of member and capacitor group.
In any of the above-described technical solution preferably, the front upper cover is laid out liquid crystal display interface, control button, refers to
Show the window of lamp, miniature circuit breaker.
In any of the above-described technical solution preferably, the left portion's position of opening of outer housing is used for liquid crystal display, shows
The circle and square hole for showing unit lower part and right part are respectively control button and indicator light position.
In any of the above-described technical solution preferably, the outer housing right middle is miniature circuit breaker position of opening.
In any of the above-described technical solution preferably, the outer housing top side is provided with two RJ45 interfaces, three-phase four
Line interface, foreign current metering terminal interface and fixed ear；Housing right side is equipped with ground terminal.
In any of the above-described technical solution preferably, following surrounding is provided with oblique strip shaped slot in the middle part of the outer housing.
In any of the above-described technical solution preferably, the terminal control system further includes substrate, plate is adopted in mainboard, friendship,
Interface board and switchboard；Interface board is used to set communication interface；Switchboard is equipped with multigroup.
In any of the above-described technical solution preferably, the master control is shown and communication module includes MCU core apparatus, hands over
Stream signal metering device, storage device, real-time clock device, telecommunication circuit, indicator light is shown and control circuit, synchro switch control
Circuit processed, the MCU core apparatus, AC signal metering device, storage device, real-time clock device, indicator light show and control
Circuit processed, synchronous switch control circuit, which are used to implement, to be shown the electric network data before and after capacitor compensation and correlation function menu
Setting, switching, data storage, local control function, the telecommunication circuit be used to implement multigroup terminal device communication and this
Ground debugging function.
In any of the above-described technical solution preferably, the analog signal sampling module includes compensation current circuit, complete
Wave rectification circuit, ADC and zero cross detection circuit, alternating voltage sampling circuit, the analog signal sampling module are used to implement electricity
The excision of condenser current zero passage, voltage measurement sampling, temperature sampling function.
In any of the above-described technical solution preferably, the terminal supplying power modular converter includes three tap AC-AC transformations
Device, rectifier circuit and DC-DC circuit, for complete indicator light show and control circuit, synchronous switch control circuit, lead to
Believe the power supply of circuit and alternating voltage sampling circuit.
In any of the above-described technical solution preferably, three tap AC-AC transformer bays are mutually isolated, each effectively to shield
Electromagnetic interference between group power supply.
In any of the above-described technical solution preferably, the electric current metering sampling module connection terminal supplying power modular converter
And analog signal sampling module, foreign current sampling is completed, is calculated for power factor of electric network and reactive-load compensation provides data branch
Support.
In any of the above-described technical solution preferably, the magnetic latching relay switch module switches with 90A maximums
Electric current, its actuation time under twice of rated operational voltage are less than 6ms.
In any of the above-described technical solution preferably, the magnetic latching relay switch module includes switch control electricity
Road；ON-OFF control circuit completes the switching action of capacitor, is internally provided at least 6 groups of switchboards and is laid out with stacked longitudinal direction, is hanged
In surface.
In any of the above-described technical solution preferably, the integrated capacitors include at least 6 group capacitors and with
The component that capacitors count matches.
In any of the above-described technical solution preferably, the Low-voltage Line Loss intelligent compensation terminal inner integrates 6 groups of capacitances
Device, 6 group capacitors are set as：Per mutually each two groups, 3 grades of compensation capacities are formed, switching is carried out automatically according to load condition, realizes essence
Refinement compensation.
In any of the above-described technical solution preferably, the Low-voltage Line Loss intelligent compensation terminal is provided at least four control
Button processed is provided with the button trepanning of respective numbers on outer housing.
In any of the above-described technical solution preferably, the Low-voltage Line Loss intelligent compensation terminal is provided at least ten and refers to
Show lamp, the indicator light trepanning of respective numbers is provided on outer housing.
In any of the above-described technical solution preferably, the Low-voltage Line Loss intelligent compensation terminal is provided at least one and dials
It is dynamic to switch, the toggle switch trepanning of respective numbers is provided on outer housing.
In any of the above-described technical solution preferably, 4 diameters are provided with below display interface on the outer housing
The round hole of 11mm is button trepanning, and display interface right side is upper, middle part trepanning is indicator light trepanning, and display interface lower right side is set
The 11mm*8mm square holes put are for toggle switch trepanning.
In any of the above-described technical solution preferably, 4 are provided with above miniature circuit breaker window on the outer housing
The round hole of diameter 11mm is three-phase and four-line top mounting hole.
In any of the above-described technical solution preferably, outer housing top left side top holes, which is set as communicating, connects
Mouthful.
In any of the above-described technical solution preferably, square hole is set as external metrology below the outer housing top left side
Interface.
In any of the above-described technical solution preferably, it is three to be provided with 4 holes above the outer housing top right side
Four line access aperture of phase.
In any of the above-described technical solution preferably, it is to connect that the outer housing right flank middle part, which is provided with protrusion nut,
Ground terminal.
In any of the above-described technical solution preferably, the capacitor group is rectangular for 6 groups of integrated forms inside three-phase and four-line
Shape structure, capacity 0.33-3kvar, the length of the structure of the capacitor group difference that 6 groups of low value capacitor customizations form
For 190mm, 120mm and 110mm.
In any of the above-described technical solution preferably, 6 groups of integrated form rectangle structures inside the three-phase and four-line,
6 L line terminals, 1 N line terminals, 1 ground terminal and 2 temperature solder joints are integrated with above body.
In any of the above-described technical solution preferably, the magnetic latching relay switch module include 6 groups of switchboards, 6
Group switchboard is perpendicularly fixed at interface board in the form of two rows, and interface board is perpendicularly fixed at substrate.
In any of the above-described technical solution preferably, the outer housing is sheet metal structural.
In any of the above-described technical solution preferably, the length, width and height overall size of the outer housing is 260mm*209mm*
129mm。
In any of the above-described technical solution preferably, display interface size is 54mm*54mm on the outer housing.
In any of the above-described technical solution preferably, micro- disconnected control window size is 81mm*54mm on the outer housing.
In any of the above-described technical solution preferably, the shell of the capacitor group is processed by sheet metal component, surrounding
It is provided with oblique strip shaped heat radiating slot.
In any of the above-described technical solution preferably, the terminal control system is additionally provided with temperature protection circuit, is used for
The temperature of capacitor group is monitored in real time.
Compared with prior art, the above-mentioned technical proposal of the utility model has the advantages that：
The Low-voltage Line Loss intelligent compensation terminal of the utility model is, it can be achieved that user side Low-voltage Line Loss compensates, with conventional low voltage
Reactive power compensator is compared, volume smaller, integration degree higher；The batch meter of load-side or cable point can be directly mounted at
In branch case, the loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively inhibited and harmonic carcellation；
Meanwhile plant maintenance is convenient, failure rate is relatively low；More importantly compared with present compensation technique, this terminal can realize low current
The adjustment of operating passing zero and reactive compensation capacity.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the hardware configuration frame according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the utility model
Figure；
Fig. 2 is the overall structure main view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the utility model
Figure；
Fig. 3 is the overall structure left view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the utility model
Figure；
Fig. 4 is the overall structure top view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the utility model
Figure；
Fig. 5 is the integrally-built interior of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal according to the utility model
Portion's bottom case schematic diagram；
Fig. 6 is the integrally-built interior of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal according to the utility model
Portion's upper cover schematic diagram；
Fig. 7 is the integrally-built interior of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal according to the utility model
Portion is laid out front view；
Fig. 8 is the integrally-built interior of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal according to the utility model
Portion is laid out left view；
Fig. 9 is to show according to the live scheme of another preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the utility model
It is intended to.
Reference numeral：
1st, main control unit, 2, display unit, 3, control unit, 4, capacitor group, 5, metering units.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
In the single-phase perception that reactive power compensation technology, particularly power factor of electric network are relatively low, reactive power line loss is bigger than normal
Load electrical domain, for overcome the deficiencies in the prior art, the utility model embodiment provide it is a kind of miniaturization, it is integrated
Line loss compensation device：Low-voltage Line Loss intelligent compensation terminal.Low-voltage Line Loss intelligent compensation described in the utility model embodiment is whole
End is directly mounted in the electricity box of low-voltage load side, can improve line end voltage, reduces reactive power loss, reduces line loss,
Improve power quality.
Embodiment 1
As shown in Figures 1 to 8, the present embodiment provides a kind of Low-voltage Line Loss intelligent compensation terminals, it includes outer housing and end
End control system, terminal control system include control unit 3, metering units 5, capacitor group 4, main control unit 1 and display unit
2, main control unit 1 is shown including master control and communication module, and display unit 2 is liquid crystal display interface, and control unit 3 is kept including magnetic
Relay switch module, terminal supplying power modular converter and analog signal sampling module, metering units 5 include electric current metering sampling mould
Block, capacitor group are integrated capacitors.Master control is shown and communication module turns respectively with electric current metering sampling module, terminal supplying power
Mold changing block and analog signal sampling module are connected；Electric current metering sampling module is adopted with terminal supplying power modular converter and analog signal
Egf block is connected；Integrated capacitors are integral type capacitor.The Low-voltage Line Loss intelligence being made of outer housing and terminal control system
Terminal can be compensated, is directly mounted in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, outer housing include positive upper cover and back side bottom case, front
Upper cover is fixed with back side bottom case by hinge；Control unit 3, metering units 5, capacitor group 4, main control unit 1 and display unit 2
It is integrated in inside Low-voltage Line Loss intelligent compensation terminal enclosure body, each functional unit is designed for integrated form；Capacitor group 4 is located at low pressure
Bottom in line loss intelligent compensation terminal shell；Control unit 3 is installed on above capacitor group；Metering units 5 are directly anchored to outer
In housing, linked together by 1 group of double-row needle with control unit, and pass through 2 groups of soft arranging wires and one group of row's needle and main control unit
Connection；Display unit 2 is located above main control unit.Specific layout：Control unit, main control unit is fixedly mounted in back side bottom shell
Circuit board and capacitor group；Positive upper cover layout liquid crystal display interface, control button, indicator light, miniature circuit breaker window
Mouthful；The left portion's position of opening of outer housing is used for liquid crystal display, circle and the square hole respectively control of display unit lower part and right part
Button and indicator light position processed；Outer housing right middle is miniature circuit breaker position of opening；Outer housing top side is provided with two RJ45
Interface, three-phase and four-line interface, foreign current metering terminal interface and fixed ear；Housing right side is equipped with ground terminal.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, terminal control system further includes substrate, mainboard, friendship are adopted
Plate, interface board and switchboard.Interface board is used to set communication interface.Switchboard is equipped with multigroup.Switchboard is synchro switch plate.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, master control show and communication module include MCU core apparatus,
AC signal metering device, storage device, real-time clock device, telecommunication circuit, indicator light are shown and control circuit, synchro switch
Control circuit, MCU core apparatus, AC signal metering device, storage device, real-time clock device, indicator light show and control
Circuit, synchronous switch control circuit, which are used to implement, to be shown the electric network data before and after capacitor compensation and correlation function menu is set
Put, switch, data storage, local control function, telecommunication circuit is used to implement the communication of multigroup terminal device and local debugging
Function.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, analog signal sampling module include compensation current circuit,
Full-wave rectifying circuit, ADC and zero cross detection circuit, alternating voltage sampling circuit, analog signal sampling module are used to implement capacitance
The excision of device current over-zero, voltage measurement sampling, temperature sampling function.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, terminal supplying power modular converter become including three tap AC-AC
Depressor, rectifier circuit and DC-DC circuit, for complete indicator light is shown and control circuit, synchronous switch control circuit,
The power supply of telecommunication circuit and alternating voltage sampling circuit.Telecommunication circuit is 485 telecommunication circuits.Three tap AC-AC transformer bay phases
Mutually isolation effectively shields electromagnetic interference between each group power supply.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, electric current metering sampling module connection terminal supplying power modulus of conversion
Block and analog signal sampling module complete foreign current sampling, are calculated for power factor of electric network and reactive-load compensation provides data
Support.
There is 90A maximums to cut for Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, magnetic latching relay switch module
Electric current is changed, its actuation time under twice of rated operational voltage is less than 6ms.Magnetic latching relay switch module includes switch and controls
Circuit；ON-OFF control circuit completes the switching action of capacitor, is internally provided at least 6 groups of switchboards and is laid out with stacked longitudinal direction,
Surface is suspended from, ensure that space availability ratio.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, integrated capacitors include 6 group capacitors and with electricity
The component that number of containers matches.6 group capacitor set-up modes：Per mutually each two groups, 3 grades of compensation capacities are formed, automatically according to negative
Lotus situation carries out switching, realizes the compensation that becomes more meticulous.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is provided with 4 control buttons, phase is provided on outer housing
Answer the button trepanning of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is provided with 10 indicator lights, phase is provided on outer housing
Answer the indicator light trepanning of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is provided with 1 toggle switch, phase is provided on outer housing
Answer the toggle switch trepanning of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is provided with 4 diameters on outer housing below display interface
The round hole of 11mm is button trepanning, and display interface right side is upper, middle part trepanning is indicator light trepanning, and display interface lower right side is set
The 11mm*8mm square holes put are for toggle switch trepanning.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is provided with 4 on outer housing above miniature circuit breaker window
The round hole of a diameter 11mm is three-phase and four-line top mounting hole.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, it is logical that outer housing top left side top holes is set as 485
Believe interface, outer housing top left side lower section square hole is set as external metrology interface, 4 holes are provided with above outer housing top right side
As three-phase and four-line access aperture, it is ground terminal that outer housing right flank middle part, which is provided with protrusion nut,.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, capacitor group are long for 6 groups of integrated forms inside three-phase and four-line
Square structure, capacity 0.33-3kvar, 6 groups of low value capacitors customize, length be respectively 190mm, 120mm and
110mm, ontology top are integrated with 6 L line terminals, 1 N line terminals, 1 ground terminal and 2 temperature solder joints.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, magnetic latching relay switch module include 6 groups of switchboards,
6 groups of switchboards are perpendicularly fixed at interface board in the form of two rows, and interface board is perpendicularly fixed at substrate.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, outer housing are sheet metal structural, following four in the middle part of outer housing
Zhou Kaiyou oblique strip shaped slots ensure the heat dissipation of capacitor group.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, the length, width and height overall size of outer housing is 260mm*209mm*
129mm。
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, display interface size is 54mm*54mm on outer housing.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, micro- disconnected control window size is 81mm* on outer housing
54mm。
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, the shell of capacitor group are processed by sheet metal component, and four
Zhou Kaiyou oblique strip shaped heat radiating slots.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is additionally provided with temperature protection circuit, for capacitor group
Temperature is monitored in real time.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, miniature circuit breaker switch, magnetic latching relay and each
Function module is compact package.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, need to be to capacitor and change in order to realize device miniaturization
Depressor carry out specific customization, while miniature circuit breakers, magnetic latching relay and each function module assurance function, performance in advance
Lower preferential selection compact package, to meet product structure requirement.Internal multigroup synchro switch plate is laid out with stacked longitudinal direction, is suspended from
Surface hands over the electric current metering plate for adopting plate under the premise of electrical safety is ensured, to be realized using upside down and substrate connection
Inner space maximally utilizes.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, capacitor group ontology use inserted design, are installed on
Device bottom, while detachable bottom case is used, facilitate installation maintenance and the replacement of capacitor group ontology.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, main control unit, control unit each function module circuit
Core control panel be mounted on right over substrate, longitudinal pitch meets electrical standard, can further compressing terminal device volume.
Low-voltage Line Loss intelligent compensation terminal with above structure, small, 3 grades of automatic adjustments of compensating power, can
It is directly mounted in user side batch meter, forms multigroup dispersion compensation scheme of reactive power inside low voltage electric network.The low-voltage line
Damage intelligent compensation terminal is mainly shown by master control and communication module, terminal supplying power are converted and analog signal sampling module, galvanometer
Sampling module, magnetic latching relay switch module and integrated capacitors are measured to form, it can be by sampling, counting to power network signal
Amount obtains the effective informations such as power factor of electric network and reactive power, can be according to practical idle deletion condition, smart allocation capacitance
Device carries out input compensation, effectively reduces line loss, improves power quality.Compared with conventional low reactive power compensator, low pressure
Line loss intelligent compensation terminal integrated level higher is, it can be achieved that the smart allocation of small-signal operating passing zero and reactive compensation capacity.
Compared with prior art, Low-voltage Line Loss intelligent compensation terminal provided in this embodiment is, it can be achieved that user side low-voltage line
Damage compensation, compared with conventional low voltage reactive power compensator, volume smaller, integration degree higher；Load can be directly mounted at
In the batch meter or cable branch box of side, the loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively
Ground inhibits and harmonic carcellation.Meanwhile plant maintenance is convenient, failure rate is relatively low.More importantly compared with present compensation technique, this
Terminal can realize the adjustment of low current operating passing zero and reactive compensation capacity.
Embodiment 2
Based on the Low-voltage Line Loss intelligent compensation terminal described in embodiment 1 and Fig. 1 to 8, carry out live scheme and implement.
Understand that horizontal space distance is 230mm on the left of electricity box according to power consumption metering box technical standard, it can be by Low-voltage Line Loss intelligence
Terminal can be compensated and be installed on this.Integrated capacitors body dimension is 190mm*120mm*110mm, and terminal device width design is
209mm, Capacitor horizontal installation, reservation operations surplus.By master switch, guide rail, concentrator in electricity box（Power supply terminal）, total wire box
Entirety moves up, guide rail position custom tailored again.Due to taking in-wall mounting, capacitor is isometric and the larger device of weight is fitted
It preferably leans below terminal and installs.The display unit of terminal is being shown in equipment upper left side, control and setting button, miniature circuit breaker etc.
Below unit and right, foreign current measurent wiring terminal, RJ45 communication interfaces and three-phase and four-line interface are in terminal top side
Face.
The Low-voltage Line Loss intelligent compensation terminal of the present embodiment is three-phase separate-supplement form, and capacitor group ontology is by 6 pieces of capacity
The capacitor Integration Design of 0.33Kvar-3Kvar ranges forms, per mutually can independent compensation 0.33Kvar-3.33Kvar it is idle
Power.Terminal control system hardware adopts plate, interface board and switchboard including substrate, mainboard, friendship.Wherein, it is thrown for capacitor group
The 6 pieces of switchboards cut are vertically fixed in the form of two rows on interface board, and interface board is perpendicularly fixed at base plate bottom position again,
Ensure maximally utilizing for space.Meanwhile forceful electric power and weak electric signal are laid out at left and right sides of interface board respectively.
Low voltage three-phase four-wire transmission line accesses the Low-voltage Line Loss intelligent compensation terminal of the present embodiment, passes through miniature circuit breaker control
The master switch of terminal system processed, miniature circuit breaker outlet side respectively with integral type capacitor group ontology N line terminals and switchboard
Middle magnetic latching relay control source foot is connected.Substrate realizes the work(such as system AC-AC decompressions, control circuit power supply, AC sampling
Can, pass through soft arranging wire and upper strata mainboard connection communication；Mainboard completes that the metering processing for the number of accepting and believing, switchboard switching is handed over to control, is each
The functions such as the control of kind status indicator lamp, data storage, clock acquisition, LCD liquid crystal displays interface.Friendship adopts plate and completes external electrical fluxion
According to sampling and 485 communication functions.
Since installation space limits, the capacitor assembly housing of the present embodiment is using contact and surrounding fluting heat dissipation design side
Formula, not only can be by contacting conduction between capacitor group and sheet metal shell body, moreover it is possible to be realized using its temperature difference with extraneous air
Circulation cooling enhances conduction effect caused by inner air and outer air convection current.Meanwhile the terminal inner is equipped with temperature protection circuit,
Capacitor group temperature is monitored in real time, it is ensured that the reliability service of device, sheet metal shell body ensure the good explosion-proof of terminal.
The above is only that the preferred embodiment of the utility model is described, and is not the model to the utility model
It encloses and is defined；The foregoing is merely specific embodiment of the present utility model, are not used to limit the utility model
Protection domain；Under the premise of the spirit of the design of the utility model is not departed from, this field ordinary skill technical staff is new to this practicality
Any modification, equivalent substitution, improvement and etc. that the technical solution of type is made, the claims that should all fall into the utility model determine
Protection domain in.
Claims (38)
1. a kind of Low-voltage Line Loss intelligent compensation terminal, including outer housing and terminal control system, it is characterised in that：The terminal control
System processed includes control unit, metering units, capacitor group, main control unit and display unit；The main control unit includes master control
Display and communication module；The display unit includes liquid crystal display interface；Described control unit is switched including magnetic latching relay
Module, terminal supplying power modular converter and analog signal sampling module；The metering units include electric current and measure sampling module；It is described
Capacitor group is integrated capacitors；The master control is shown and communication module measures sampling module, terminal supplying power with electric current respectively
Modular converter and analog signal sampling module are connected；The electric current metering sampling module and terminal supplying power modular converter and simulation
Signal sampling module is connected；The integrated capacitors are integral type capacitor.
2. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：By outer housing and terminal control system
The Low-voltage Line Loss intelligent compensation terminal of composition, is directly mounted in user side batch meter, forms reactive power inside low voltage electric network
Multigroup dispersion compensation.
3. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：Described control unit, metering units,
Capacitor group, main control unit and display unit are integrated in inside Low-voltage Line Loss intelligent compensation terminal enclosure body, and each functional unit is
Integrated form designs；Capacitor group is located at bottom in Low-voltage Line Loss intelligent compensation terminal shell；Control unit is installed on capacitor group
Top；Metering units are directly anchored in outer housing, are linked together by 1 group of double-row needle with control unit, and pass through 2 groups it is soft
Winding displacement and one group of row's needle are connect with main control unit；Display unit is located above main control unit.
4. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The outer housing includes positive upper cover
With back side bottom case, positive upper cover is fixed with back side bottom case by hinge.
5. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The back side bottom shell fixes peace
Fill control unit, the circuit board of main control unit and capacitor group.
6. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The front upper cover layout liquid crystal
Show interface, control button, indicator light, miniature circuit breaker window.
7. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The left portion's trepanning position of outer housing
It puts for liquid crystal display, the circle and square hole of display unit lower part and right part are respectively control button and indicator light position.
8. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The outer housing right middle is miniature
Breaker position of opening.
9. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The outer housing top side is provided with two
Position RJ45 interfaces, three-phase and four-line interface, foreign current metering terminal interface and fixed ear；Housing right side is equipped with ground terminal
Son.
10. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：Following four in the middle part of the outer housing
Zhou Kaiyou oblique strip shaped slots.
11. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The terminal control system is also wrapped
Include substrate, plate, interface board and switchboard are adopted in mainboard, friendship.
12. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The master control shows and communicates mould
Block includes MCU core apparatus, AC signal metering device, storage device, real-time clock device, telecommunication circuit, indicator light and shows
And control circuit, synchronous switch control circuit, the MCU core apparatus, AC signal metering device, storage device, it is real-time when
Clock device, indicator light are shown and control circuit, synchronous switch control circuit are used to implement to the power grid number before and after capacitor compensation
Multigroup end is used to implement according to display and correlation function menu setting, switching, data storage, local control, the telecommunication circuit
The communication of end equipment and local debugging.
13. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The analog signal sampling module
Including compensation current circuit, full-wave rectifying circuit, ADC and zero cross detection circuit, alternating voltage sampling circuit, the analog signal
Sampling module is used to implement the excision of condenser current zero passage, voltage measurement sampling, temperature sampling.
14. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The terminal supplying power modular converter
Including three tap AC-AC transformers, rectifier circuit and DC-DC circuit, for complete to show indicator light and control circuit,
The power supply of synchronous switch control circuit, telecommunication circuit and alternating voltage sampling circuit.
15. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 14, it is characterised in that：Three tap AC-AC transformer bays
It is mutually isolated, to shield electromagnetic interference between each group power supply.
16. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The electric current measures sampling module
Connect terminal supplying power modular converter and analog signal sampling module, complete foreign current sampling, for power factor of electric network calculate with
And reactive-load compensation provides data supporting.
17. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The magnetic latching relay switch
Module has 90A maximum switching electric currents, its actuation time under twice of rated operational voltage is less than 6ms.
18. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 17, it is characterised in that：The magnetic latching relay switch
Module includes ON-OFF control circuit；ON-OFF control circuit complete capacitor switching action, be internally provided at least 6 groups of switchboards with
Stacked longitudinal direction layout, is suspended from surface.
19. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The integrated capacitors include
At least 6 group capacitors and the component to match with capacitors count.
20. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The Low-voltage Line Loss intelligent compensation
Terminal inner integrates 6 group capacitors, and 6 group capacitors are set as：Per mutually each two groups, 3 grades of compensation capacities are formed, automatically according to load
Situation carries out switching, realizes the compensation that becomes more meticulous.
21. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The Low-voltage Line Loss intelligent compensation
Terminal is provided at least four control button, and the button trepanning of respective numbers is provided on outer housing.
22. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The Low-voltage Line Loss intelligent compensation
Terminal is provided at least ten indicator light, and the indicator light trepanning of respective numbers is provided on outer housing.
23. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The Low-voltage Line Loss intelligent compensation
Terminal is provided at least one toggle switch, and the toggle switch trepanning of respective numbers is provided on outer housing.
24. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 7, it is characterised in that：Display interface on the outer housing
The round hole that lower section is provided with 4 diameter 11mm is button trepanning, and display interface right side is upper, middle part trepanning is opened for indicator light
Hole, the 11mm*8mm square holes of display interface lower right side setting are toggle switch trepanning.
25. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 8, it is characterised in that：Miniature open circuit on the outer housing
The round hole that 4 diameter 11mm are provided with above device window is three-phase and four-line top mounting hole.
26. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：In the outer housing top left side
Square holes is set as communication interface.
27. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 9, it is characterised in that：Under the outer housing top left side
Fang Fangkong is set as external metrology interface.
28. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 9, it is characterised in that：In the outer housing top right side
It is three-phase and four-line access aperture that side, which is provided with 4 holes,.
29. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 9, it is characterised in that：The outer housing right flank middle part
It is ground terminal to be provided with protrusion nut.
30. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The capacitor group is three-phase four
6 groups of integrated form rectangle structures inside line, capacity 0.33-3kvar, the length of the structure is respectively 190mm, 120mm
And 110mm.
31. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 30, it is characterised in that：6 groups inside the three-phase and four-line
Integrated form rectangle structure, ontology top are integrated with 6 L line terminals, 1 N line terminals, 1 ground terminal and 2 temperature welderings
Point.
32. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 18, it is characterised in that：The magnetic latching relay switch
Module includes 6 groups of switchboards, and 6 groups of switchboards are perpendicularly fixed at interface board in the form of two rows, and interface board is perpendicularly fixed at base
Plate.
33. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The outer housing is sheet metal structural.
34. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The length, width and height of the outer housing are total
Size is 260mm*209mm*129mm.
35. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：Display interface on the outer housing
Size is 54mm*54mm.
36. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：Micro- disconnected control on the outer housing
Window size is 81mm*54mm.
37. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The shell of the capacitor group by
Sheet metal component is processed into, and surrounding is provided with oblique strip shaped heat radiating slot.
38. Low-voltage Line Loss intelligent compensation terminal as described in claim 1, it is characterised in that：The terminal control system is also set
There is temperature protection circuit, monitored in real time for the temperature to capacitor group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618427.3U CN207559567U (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721618427.3U CN207559567U (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559567U true CN207559567U (en) | 2018-06-29 |
Family
ID=62677780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721618427.3U Expired - Fee Related CN207559567U (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769224A (en) * | 2017-11-28 | 2018-03-06 | 南京科沃电力科技有限公司 | A kind of Low-voltage Line Loss intelligent compensation terminal |
| CN109219278A (en) * | 2018-10-10 | 2019-01-15 | 北京友信宏科电子科技股份有限公司 | Stacked circuit board layout structure and electric industry vehicle electric machine controller |
-
2017
- 2017-11-28 CN CN201721618427.3U patent/CN207559567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769224A (en) * | 2017-11-28 | 2018-03-06 | 南京科沃电力科技有限公司 | A kind of Low-voltage Line Loss intelligent compensation terminal |
| CN109219278A (en) * | 2018-10-10 | 2019-01-15 | 北京友信宏科电子科技股份有限公司 | Stacked circuit board layout structure and electric industry vehicle electric machine controller |
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