CN106324409A - Transformer tap online display device and transformer tap online display system - Google Patents
Transformer tap online display device and transformer tap online display system Download PDFInfo
- Publication number
- CN106324409A CN106324409A CN201611069726.6A CN201611069726A CN106324409A CN 106324409 A CN106324409 A CN 106324409A CN 201611069726 A CN201611069726 A CN 201611069726A CN 106324409 A CN106324409 A CN 106324409A
- Authority
- CN
- China
- Prior art keywords
- contact
- real time
- transformator
- electromagnetic relay
- tap changer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
An embodiment of the invention provides a transformer tap online display device and a transformer tap online display device, and relates to the field of power distribution and transformation technologies for power grids. The transformer tap online display device comprises a voltage transformer, an open type current transformer, a signal conditioning circuit, an analog-digital conversion acquisition chip, a plurality of electromagnetic relays and a processor. The processor is further connected with a display. The transformer tap online display device and the transformer tap online display system have the advantages that voltages and currents of a transformer can be detected, the locations of taps of the transformer can be computed, and the computed locations of the taps can be verified by the aid of output states of the multiple electromagnetic relays, can be displayed on the display and can be acquired by users in real time; a master station and the transformer tap online display device are in communication connection with each other, so that current tap position states of the taps of the transformer can be remotely monitored, engineers can be warned when the tap position states of the taps of the transformer in a field are abnormal, processing instructions can be transmitted to the transformer tap online display device, and the engineers can be informed of carrying out field maintenance.
Description
Technical field
The present invention relates to electrical network Allocation transformer technical field, in particular to a kind of load tap changer Real time displaying dress
Put and system.
Background technology
In the operation of the hugest supply and distribution network, the existence of variation and the loss of voltage is inevitable phenomenon, so
And because distribution transformer tap selects the unreasonable variation caused excessive, electrical equipment is caused many bad shadows
Ring, make distribution line and electrical equipment produce bigger electric energy loss, reduce electrical equipment service life.Set in order to ensure electricity consumption
Voltage levvl on standby terminal, improves the quality of supply voltage, should reduce variation as far as possible, and first best approach is reasonable
Selection, adjustment distribution transformer tap realize the optimization of power supply quality.So for the working voltage water improving electrical network
Putting down enables transformator to have a specified output voltage, and great majority are i.e. to be changed by the position of change primary winding tap
The number of turn that transformer coil accesses is how many, changes the output end voltage of transformator.But the position for load tap changer
Can be checked by scene, can not real time and on line monitoring, not manageability.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of load tap changer Real time displaying device, and user can be made to exist in real time
The position of line monitoring load tap changer, understands the power status of transformator.
The embodiment of the present invention additionally provide a kind of load tap changer Real time displaying system, by main website and at least one
Load tap changer Real time displaying device communicates to connect, and can make the position of the tap of the different transformator of user's real time and on line monitoring
Putting, understand the power status of multiple different transformator, the convenient power status to multiple transformators is managed.
A kind of load tap changer Real time displaying device that the embodiment of the present invention provides, is applied to load tap changer online
Display system, described transformator includes high-pressure side winding and low-pressure side winding, described load tap changer Real time displaying device bag
Include: voltage transformer, Open Type Electric Current Mutual Inductor, signal conditioning circuit, analog digital conversion acquisition chip, multiple electromagnetic relay with
And processor, described voltage transformer, described Open Type Electric Current Mutual Inductor all electrically connect with described signal conditioning circuit, described mould
Number conversion acquisition chip is connected with described signal conditioning circuit and described processor respectively, multiple described electromagnetic relays also with institute
Stating analog digital conversion acquisition chip to connect, described processor is also associated with display；Described voltage transformer is for described transformation
The voltage of device output carries out isolation conversion, obtains converted voltage, and described Open Type Electric Current Mutual Inductor is for examining described transformation
The electric current of device output carries out isolation conversion, obtains changing after current, and described signal conditioning circuit is for by described converted voltage
It is adjusted respectively being adjusted rear voltage and adjusting after current with described conversion after current；The low-pressure side winding of described transformator
Including multiple contacts, multiple described electromagnetic relays are arranged with the one_to_one corresponding of the plurality of contact, multiple described electromagnetism relays
Whether the contact that device is respectively used to detection corresponding has electric current to flow through, and multiple described electromagnetic relay correspondences send multiple different opening
OFF signal is to described analog digital conversion acquisition chip；Described analog digital conversion acquisition chip is for by voltage after described adjustment and described tune
Whole after current carries out analog digital conversion and obtains voltage signal and current signal, is additionally operable to carry out the plurality of different switching signal
Analog digital conversion, and send to processor；Described processor is used for reading described voltage signal and described current signal, according to described
Voltage signal and described current signal calculate the high-pressure side winding of the described transformator change ratio to low-pressure side winding, according to institute
State change ratio the tap joint position of described transformator is calculated, and according to the multiple different switch letter after analog digital conversion
Number verifying result of calculation, and result of calculation and the result are sent to described display, described display will be for will
The on off state of described result of calculation, described the result and multiple described electromagnetic relay shows.
As a kind of embodiment, optionally, the number of multiple described electromagnetic relays is three, the respectively first electromagnetism
Relay, the second electromagnetic relay and the 3rd electromagnetic relay, the number of the plurality of contact is three, and respectively first touches
Point, the second contact and the 3rd contact, described first contact, described second contact and described 3rd contact are by described transformator
One end of low-pressure side winding set gradually to the other end, described first electromagnetic relay, described second electromagnetic relay and
The position of described 3rd electromagnetic relay respectively with described first contact, described second contact and the position of described 3rd contact
Corresponding；Described first electromagnetic relay, described second electromagnetic relay and described 3rd electromagnetic relay detect described respectively
Whether the first contact, described second contact and described 3rd contact have electric current to flow through；When described first contact has electric current to flow through
Time, described first electromagnetic relay conducting, described first electromagnetic relay sends first to described analog digital conversion acquisition chip and opens
Opening signal, the tap of the most described transformator is in the position between described first contact and described second contact or just locates
Position in the first contact；When described second contact has electric current to flow through, now the first contact necessarily has electric current to flow through, and described
One electromagnetic relay and described second electromagnetic relay are both turned on, and described second electromagnetic relay gathers core to described analog digital conversion
Sheet sends the second unlatching signal, and the tap of the most described transformator is between described second contact and described 3rd contact
Position or the position just at the second contact；When described 3rd contact has electric current to flow through, the most described first contact and institute
Stating the second contact necessarily has electric current to flow through, described first electromagnetic relay, described second electromagnetic relay and described 3rd electricity
Magnetic relay is both turned on, and described 3rd electromagnetic relay sends the 3rd unlatching signal to described analog digital conversion acquisition chip, now
The tap of described transformator is between one end away from described first contact of low-pressure side winding and described 3rd contact
Position or the position just at the 3rd contact.
As a kind of embodiment, optionally, described display for show the position of the tap of described transformator with
And showing the parameter information of described transformator, described parameter information includes the nameplate parameter that described transformator is recorded.
As a kind of embodiment, optionally, also include that memorizer, described memorizer electrically connect with described processor, institute
State memorizer for storing the parameter information of described transformator, described voltage signal, described current signal and described transformator
Tap position information.
As a kind of embodiment, optionally, described memorizer is FLASH storage chip, and described processor is ARM core
Sheet.
As a kind of embodiment, optionally, also including mu balanced circuit, described mu balanced circuit is for described transformator even
Connecing, described mu balanced circuit is connected with described voltage transformer and described Open Type Electric Current Mutual Inductor the most respectively.
The embodiment of the present invention also provides for a kind of load tap changer Real time displaying system, shows online including load tap changer
Showing device and main website, described load tap changer Real time displaying device includes: voltage transformer, Open Type Electric Current Mutual Inductor, letter
Number modulate circuit, analog digital conversion acquisition chip, multiple electromagnetic relay and processor, described voltage transformer, described unlatching
Formula current transformer all electrically connects with described signal conditioning circuit, described analog digital conversion acquisition chip respectively with described signal condition
Circuit and described processor connect, and multiple described electromagnetic relays are also connected with described analog digital conversion acquisition chip, described process
Device is also associated with display；Described voltage transformer carries out isolation conversion for the voltage exporting described transformator, is turned
Changing rear voltage, described Open Type Electric Current Mutual Inductor carries out isolation conversion for the electric current that described transformator is exported by inspection, is turned
Changing after current, described signal conditioning circuit is for being adjusted respectively obtaining by described converted voltage and described conversion after current
Voltage and adjustment after current after adjustment；The low-pressure side winding of described transformator includes multiple contact, multiple described electromagnetic relays
Arranging with the one_to_one corresponding of the plurality of contact, whether the contact that multiple described electromagnetic relays are respectively used to detection corresponding has electricity
Stream flows through, and multiple described electromagnetic relay correspondences send multiple different switching signal to described analog digital conversion acquisition chip；Institute
State analog digital conversion acquisition chip and obtain voltage letter for voltage after described adjustment and described adjustment after current being carried out analog digital conversion
Number and current signal, be additionally operable to the plurality of different switching signal is carried out analog digital conversion, and send to processor；Described place
Reason device is used for reading described voltage signal and described current signal, calculates described according to described voltage signal and described current signal
The high-pressure side winding of the transformator change ratio to low-pressure side winding, according to the described change ratio tap to described transformator
Position calculates, and verifies result of calculation according to the multiple different switching signal after analog digital conversion, and will calculate
Result and the result send to described display, described display for by described result of calculation, described the result and
The on off state of multiple described electromagnetic relays shows.
As a kind of embodiment, optionally, described load tap changer Real time displaying device includes Ethernet interface, institute
Stating processor to electrically connect with described Ethernet interface, described Ethernet interface is used for accessing the Internet, makes the meter of described processor
Calculate result transmission to described main website.
As a kind of embodiment, optionally, between described processor and described Ethernet interface, it is provided with isolation circuit.
As a kind of embodiment, optionally, described main website is for showing the result of calculation and at least one of described processor
The parameter information of the transformator that individual described load tap changer Real time displaying device is corresponding, is additionally operable to send control instruction to described
Load tap changer Real time displaying device
Compared with prior art, the load tap changer Real time displaying Apparatus and system of the present invention, load tap changer exists
Line display device is by detecting the voltage and current of transformator, by typings in advance such as the parameter informations of transformator to storage
Device, the magnitude of voltage of the processor transformator to gathering and current value combine the parameter information of the transformator read and calculate, obtain
To transformator high-pressure side winding to the proportionate relationship of medium voltage side winding, described power transformation device high-pressure side winding to low-pressure side winding
Proportionate relationship, calculate the tap joint position of described transformator, by the output switch state of multiple electromagnetic relays, to calculating
The region belonging to tap joint position verify further, and the tap joint position of described transformator is carried out over the display
Display, user can obtain the tap joint position of transformator in real time.Load tap changer Real time displaying system is by main website and extremely
Few load tap changer Real time displaying device communication connection, it is possible to realize remotely monitoring load tap changer current gear shape
State, when the range state of load tap changer occurs abnormal at the scene, produces and reports to the police, and the instruction that transmission processes is to transformer tap
Head Real time displaying device, and show over the display, inform that engineering staff carries out field maintenance.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
The main website that Fig. 1 provides for present pre-ferred embodiments and showing that load tap changer Real time displaying device interacts
It is intended to.
The block diagram of the load tap changer Real time displaying device that Fig. 2 provides for first embodiment of the invention.
Multiple electromagnetic relays of the load tap changer Real time displaying device that Fig. 3 provides for first embodiment of the invention with
The block diagram of multiple contacts.
The block diagram of the load tap changer Real time displaying device that Fig. 4 provides for second embodiment of the invention.
Icon: 10-load tap changer Real time displaying device；101-voltage transformer；102-Open Type Electric Current Mutual Inductor；
103-signal conditioning circuit；104-analog digital conversion acquisition chip；105-processor；106-display；107-memorizer；108-with
Too network interface；109-mu balanced circuit；110-isolates circuit；111-the first electromagnetic relay；112-the second electromagnetic relay；113-
3rd electromagnetic relay；20-main website；30-transformator；301-the first contact；302-the second contact；303-the 3rd contact.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally exist
Can arrange and design with various different configurations with the assembly of the embodiment of the present invention that illustrates described in accompanying drawing herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.Meanwhile, the present invention's
In description, term " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
Refer to Fig. 1, be that the main website 20 that the embodiment of the present invention provides is carried out with load tap changer Real time displaying device 10
Mutual schematic diagram.The embodiment of the present invention provides a kind of load tap changer Real time displaying system, and described load tap changer exists
Line display system includes a main website 20 and multiple load tap changer Real time displaying device 10, and main website 20 and multiple transformator divide
Joint Real time displaying device 10 communicates to connect.In the present embodiment, described main website 20 fills with multiple load tap changer Real time displaying
Put 10 to be connected by the Internet, it is possible to increase message transmission rate and reliability.Described load tap changer Real time displaying device
10 for being acquired display to the tap joint position of transformator 30, and the data result of collection is uploaded to main website 20, described
Main website 20 can be PC (personal computer, PC) etc..
Described main website 20 and multiple load tap changer Real time displaying device 10 can carry out data interaction, concrete, become
The positional information of the tap of the transformator that correspondence can be gathered by depressor tap Real time displaying device 10 and transformator 30
Name plate information be uploaded to main website 20, main website 20 to these information Treatment Analysis, and can judge whether exception, by send out
Send operational order, make the operator of one end of load tap changer Real time displaying device 10 process in time.
First embodiment
Refer to Fig. 2, be that the square frame of the load tap changer Real time displaying device 10 that first embodiment of the invention provides shows
It is intended to.Described load tap changer Real time displaying device 10 includes voltage transformer 101, Open Type Electric Current Mutual Inductor 102, signal
Modulate circuit 103, analog digital conversion acquisition chip 104, processor 105, memorizer 107 and display 106, described mutual induction of voltage
Device 101, described Open Type Electric Current Mutual Inductor 102 all electrically connect with described signal conditioning circuit 103, and described analog digital conversion gathers core
Sheet 104 is connected with described signal conditioning circuit 103 and described processor 105 respectively, described display 106 and described memorizer
107 are all connected with described processor 105.
Described voltage transformer 101 and described Open Type Electric Current Mutual Inductor 102 are all directly connected with transformator 30, described electricity
Pressure transformer 101 carries out isolation conversion for the voltage exporting described transformator, obtains converted voltage, described open-type electricity
Current transformer 102 carries out isolation conversion for the electric current exported by described transformator, obtains changing after current.Described mutual induction of voltage
Device 101 and described Open Type Electric Current Mutual Inductor 102 are also connected with signal conditioning circuit 103, respectively by converted voltage and conversion
After current is sent to described signal conditioning circuit 103.
Described signal conditioning circuit 103 is for being adjusted described converted voltage and described conversion after current respectively
Voltage and adjustment after current after adjustment.
Described analog digital conversion acquisition chip 104 turns for voltage after described adjustment and described adjustment after current are carried out modulus
Getting voltage signal and current signal, described voltage signal and described current signal in return is digital signal.
Described voltage signal and described current signal can be detected, according to this voltage signal by described processor 105
With described current signal and described voltage transformer 101, the specification of Open Type Electric Current Mutual Inductor 102, transformation can be calculated
The magnitude of voltage of device 30 and current value.Described transformator 30 includes high-pressure side winding and low-pressure side winding, according to described magnitude of voltage and
Described current value, calculates the high-pressure side winding change ratio to low-pressure side winding of described transformator 30, then according to described change
The tap joint position of described transformator is calculated by ratio, and sends result of calculation to described display 106.
Described change ratio can pass through formula
Calculate, wherein, k12Represent I described in change ratio1、I2And U1、U2It is respectively the high-pressure side winding of transformator 30
With magnitude of voltage and the current value of low-pressure side winding, P1、P2And Q1、Q2It is respectively active power and the nothing of the high and low both sides of transformator 30
Merit power, R1、R2And X1、X2It is respectively real part and the imaginary part of transformator 30 high and low both sides winding equivalent impedance value.I1And U1Value
Can read from transformator 30, I2And U2Can obtain according to the result of calculation of processor 105, the active power of transformator 30
It is prior art with the calculation of reactive power and the real part of equivalent impedance value and imaginary part, does not repeats them here.
Refer to Fig. 3, be that multiple electromagnetism of the load tap changer Real time displaying device 10 that the embodiment of the present invention provides continue
Electrical equipment and the block diagram of multiple contacts.Described load tap changer Real time displaying device 10 also includes multiple electromagnetism relay
Device, the low-pressure side winding of described transformator 30 is provided with multiple contact.As it is shown on figure 3, in the present embodiment, described electromagnetic relay
Number be three, the respectively first electromagnetic relay, the second electromagnetic relay and the 3rd electromagnetic relay, the plurality of touch
The number of point is three, the respectively first contact, the second contact and the 3rd contact, described first contact, described second contact
And described 3rd contact is set gradually to the other end by one end of the low-pressure side winding of described transformator, described first electromagnetism continues
The position of electrical equipment, described second electromagnetic relay and described 3rd electromagnetic relay respectively with described first contact, described
The position of two contacts and described 3rd contact is corresponding.
Described first electromagnetic relay, described second electromagnetic relay and described 3rd electromagnetic relay detect institute respectively
State whether the first contact, described second contact and described 3rd contact have electric current to flow through.
When described first contact has electric current to flow through, described first electromagnetic relay conducting, described first electromagnetic relay
Sending the first unlatching signal to described analog digital conversion acquisition chip, the tap of the most described transformator is in described first contact
And position between described second contact or the position just at the first contact.
When described second contact has electric current to flow through, now the first contact necessarily has electric current to flow through, and described first electromagnetism continues
Electrical equipment and described second electromagnetic relay are both turned on, and described second electromagnetic relay sends to described analog digital conversion acquisition chip
Two open signal, and the tap of the most described transformator is in the position between described second contact and described 3rd contact or proper
It is in well the position of the second contact.
When described 3rd contact has electric current to flow through, necessarily there is electric current stream the most described first contact and described second contact
Crossing, described first electromagnetic relay, described second electromagnetic relay and described 3rd electromagnetic relay are both turned on, and the described 3rd
Electromagnetic relay sends the 3rd unlatching signal to described analog digital conversion acquisition chip, and the tap of the most described transformator is in low
Press the position between the one end away from described first contact and described 3rd contact of side winding or just at the 3rd contact
Position.
Multiple different switching signals can be sent to processor after modulus turns by analog digital conversion acquisition chip, this
In embodiment, the plurality of different switching signal is the first unlatching signal, the second unlatching signal and the 3rd unlatching signal.
Processor can be opened signal, the second unlatching signal and the 3rd unlatching signal according to described first and can be become
The location of the tap of depressor is interval, can be by the high-pressure side winding according to described transformator 30 to low-pressure side winding
Change ratio, the result of the tap joint position of the described transformator of calculating is verified, it is judged that the tap that its result of calculation is corresponding
The position whether head position is in correspondence is interval？If it is, without exception, and result of calculation is sent extremely described display, as
The most no, then generate abnormal information, and send to display.
Processor 105 is probably a kind of IC chip, has the disposal ability of signal.Above-mentioned processor 105 is permissible
It is general processor, including central processing unit (Central Processing Unit is called for short CPU), network processing unit
(Network Processor is called for short NP) etc.；Can also is that digital signal processor (DSP), special IC (ASIC),
Ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete firmly
Part assembly.In the present embodiment, described processor 105 is preferably ARM chip.
Described memorizer 107 is for storing the parameter information of described transformator 30, described voltage signal, described current signal
And described load tap changer positional information.The parameter information of described transformator 30 includes the nameplate that described transformator 30 is recorded
Parameter, such as, described nameplate parameter can include the specification of transformator 30, rated voltage, rated power etc..
Wherein, memorizer 107 may be, but not limited to, random access memory (Random Access Memory,
RAM), read only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Preferably, described memorizer 107 is FLASH storage chip.
Described display 106, for the result of calculation that described processor 105 sends being shown, is additionally operable to display described
The position of the tap of transformator 30, described the result, first open signal, second open signal, the 3rd open signal with
And the parameter information of described transformator 30, described parameter information includes the nameplate parameter etc. that described transformator is recorded.
Described display 106 can be connected with described processor 105 by CAN, and corresponding described processor 105 needs
Connect a CAN interface.Owing to transformator 30 is in outdoor, and display 106 is for convenience of user to watch, can install
In nearer indoor (0-1km), the maximum communication distance up to 10 kms of CAN, use requirement can be met.
Described processor 105 is also associated with Ethernet interface 108, and described Ethernet interface 108 uses built-in TCP or IP to assist
The integrated chip of view, uses Ethernet TCP or IP communication modes, it is possible to increase load tap changer Real time displaying device 10 is with main
Stand message transmission rate and reliability between 20.
Second embodiment
Refer to Fig. 4, be that the square frame of the load tap changer Real time displaying device 10 that second embodiment of the invention provides shows
It is intended to.The present embodiment is with the difference of first embodiment, and the load tap changer Real time displaying device 10 of the present embodiment also wraps
Including mu balanced circuit 109 and isolation circuit 110, described mu balanced circuit 109 is arranged at described transformator 30 and described voltage transformer
Between 101 and Open Type Electric Current Mutual Inductor 102.Described mu balanced circuit 109 one end is connected with described transformator, the most respectively with described
Voltage transformer 101 and described Open Type Electric Current Mutual Inductor 102 connect.The purpose arranging described mu balanced circuit 109 is, makes institute
The voltage stating voltage transformer 101 and described Open Type Electric Current Mutual Inductor 102 is more stable, and load tap changer Real time displaying fills
The detection of the tap joint position putting 10 pairs of transformators 30 is more accurate.
Described isolation circuit 110 is arranged between described processor 105 and described Ethernet interface 108, due to isolation electricity
The existence on road 110, will not because of load tap changer Real time displaying device 10 internal fault affect external power grid properly functioning and station
The normal communication of interior LAN.
In sum, the present invention is by detecting the voltage and current of transformator, by the parameter information etc. of transformator
Typing in advance is to memorizer, and the magnitude of voltage of the processor transformator to gathering and current value combine the parameter letter of the transformator read
Breath calculate, obtain the high-pressure side winding proportionate relationship to medium voltage side winding of transformator, described power transformation device high-pressure side around
The group proportionate relationship to low-pressure side winding, calculates the tap joint position of described transformator, by the output of multiple electromagnetic relays
State, verifies the tap joint position calculated, the tap joint position of described transformator is shown over the display, uses
Family can obtain the tap joint position of transformator in real time.Led to by main website and at least one load tap changer Real time displaying device
Letter connects, it is possible to realize remotely monitoring load tap changer current gear state, the at the scene range state of load tap changer
When occurring abnormal, producing and report to the police, the instruction that transmission processes is to load tap changer Real time displaying device, and shows over the display
Show, inform that engineering staff carries out field maintenance.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to pass through
Other mode realizes.Device embodiment described above is only schematically, such as, and the flow chart in accompanying drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this, each square frame in flow chart or block diagram can represent a module, program segment or the one of code
Part, a part for described module, program segment or code comprises holding of one or more logic function for realizing regulation
Row instruction.It should also be noted that at some as in the implementation replaced, the function marked in square frame can also be to be different from
The order marked in accompanying drawing occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, and they are the most also
Can perform in the opposite order, this is depending on involved function.It is also noted that every in block diagram and/or flow chart
The combination of the square frame in individual square frame and block diagram and/or flow chart, can be with function or the special base of action performing regulation
System in hardware realizes, or can realize with the combination of specialized hardware with computer instruction.
It addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation
Point, it is also possible to it is modules individualism, it is also possible to two or more modules are integrated to form an independent part.
If described function is using the form realization of software function module and as independent production marketing or use, permissible
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words
The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter
Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual
People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.
And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), random access memory are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.Need
Illustrate, in this article, the relational terms of such as first and second or the like be used merely to by an entity or operation with
Another entity or operating space separate, and there is any this reality between not necessarily requiring or imply these entities or operating
The relation on border or order.And, term " includes ", " comprising " or its any other variant are intended to the bag of nonexcludability
Contain, so that include that the process of a series of key element, method, article or equipment not only include those key elements, but also include
Other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.
In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that including described key element
Process, method, article or equipment in there is also other identical element.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should also be noted that similar label and letter exist
Figure below represents similar terms, therefore, the most a certain Xiang Yi accompanying drawing is defined, is then not required in accompanying drawing subsequently
It is defined further and explains.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (10)
1. a load tap changer Real time displaying device, is applied to load tap changer Real time displaying system, described transformator
Including high-pressure side winding and low-pressure side winding, it is characterised in that described load tap changer Real time displaying device includes: voltage is mutual
Sensor, Open Type Electric Current Mutual Inductor, signal conditioning circuit, analog digital conversion acquisition chip, multiple electromagnetic relay and processor,
Described voltage transformer, described Open Type Electric Current Mutual Inductor all electrically connect with described signal conditioning circuit, and described analog digital conversion is adopted
Collection chip is connected with described signal conditioning circuit and described processor respectively, and multiple described electromagnetic relays also turn with described modulus
Changing acquisition chip to connect, described processor is also associated with display；
Described voltage transformer carries out isolation conversion for the voltage exporting described transformator, obtains converted voltage, described
Open Type Electric Current Mutual Inductor carries out isolation conversion for the electric current that described transformator is exported by inspection, obtains changing after current, described
Signal conditioning circuit for be adjusted described converted voltage and described conversion after current respectively being adjusted rear voltage and
Adjust after current；
The low-pressure side winding of described transformator includes multiple contact, and multiple described electromagnetic relays are with the plurality of contact one by one
Being correspondingly arranged, whether the contact that multiple described electromagnetic relays are respectively used to detection corresponding has electric current to flow through, multiple described electromagnetism
Relay correspondence sends multiple different switching signal to described analog digital conversion acquisition chip；
Described analog digital conversion acquisition chip obtains for voltage after described adjustment and described adjustment after current are carried out analog digital conversion
Voltage signal and current signal, be additionally operable to the plurality of different switching signal is carried out analog digital conversion, and send to processor；
Described processor is used for reading described voltage signal and described current signal, believes according to described voltage signal and described electric current
Number calculate the high-pressure side winding change ratio to low-pressure side winding of described transformator, according to described change ratio to described transformation
The tap joint position of device calculates, and tests result of calculation according to the multiple different switching signal after analog digital conversion
Card, and result of calculation and the result being sent to described display, described display for by described result of calculation, described in test
The on off state of card result and multiple described electromagnetic relay shows.
Load tap changer Real time displaying device the most according to claim 1, it is characterised in that multiple described electromagnetism relays
The number of device is three, the respectively first electromagnetic relay, the second electromagnetic relay and the 3rd electromagnetic relay, the plurality of
The number of contact is three, the respectively first contact, the second contact and the 3rd contact, described first contact, described second touch
Point and described 3rd contact are set gradually to the other end by one end of the low-pressure side winding of described transformator, described first electromagnetism
The position of relay, described second electromagnetic relay and described 3rd electromagnetic relay respectively with described first contact, described
The position of the second contact and described 3rd contact is corresponding；
Described first electromagnetic relay, described second electromagnetic relay and described 3rd electromagnetic relay detect described respectively
Whether one contact, described second contact and described 3rd contact have electric current to flow through；
When described first contact has electric current to flow through, described first electromagnetic relay conducting, described first electromagnetic relay is to institute
Stating analog digital conversion acquisition chip and send the first unlatching signal, the tap of the most described transformator is in described first contact and institute
State the position between the second contact or the position just at the first contact；
When described second contact has electric current to flow through, now the first contact necessarily has electric current to flow through, described first electromagnetic relay
Being both turned on described second electromagnetic relay, described second electromagnetic relay sends second to described analog digital conversion acquisition chip and opens
Opening signal, the tap of the most described transformator is in the position between described second contact and described 3rd contact or just locates
Position in the second contact；
When described 3rd contact has electric current to flow through, the most described first contact and described second contact necessarily have electric current to flow through,
Described first electromagnetic relay, described second electromagnetic relay and described 3rd electromagnetic relay are both turned on, described 3rd electricity
Magnetic relay sends the 3rd unlatching signal to described analog digital conversion acquisition chip, and the tap of the most described transformator is in low pressure
Position between one end away from described first contact and described 3rd contact of side winding or the position just at the 3rd contact
Put.
Load tap changer Real time displaying device the most according to claim 1, it is characterised in that described display is used for showing
Show the position of the tap of described transformator and show that the parameter information of described transformator, described parameter information include described change
The nameplate parameter that depressor is recorded.
Load tap changer Real time displaying device the most according to claim 3, it is characterised in that also include memorizer, institute
Stating memorizer to electrically connect with described processor, described memorizer is for storing the parameter information of described transformator, described voltage letter
Number, described current signal and described load tap changer positional information.
Load tap changer Real time displaying device the most according to claim 4, it is characterised in that described memorizer is
FLASH storage chip, described processor is ARM chip.
Load tap changer Real time displaying device the most according to claim 1, it is characterised in that also include mu balanced circuit,
Described mu balanced circuit for being connected with described transformator, described mu balanced circuit the most respectively with described voltage transformer and described unlatching
Formula current transformer connects.
7. a load tap changer Real time displaying system, it is characterised in that include the arbitrary described transformation of claim 1 to 6
Device tap Real time displaying device and main website, described main website communicates with load tap changer Real time displaying device at least one described
Connect.
Load tap changer Real time displaying system the most according to claim 7, it is characterised in that described load tap changer
Real time displaying device includes that Ethernet interface, described processor electrically connect with described Ethernet interface, and described Ethernet interface is used
In accessing the Internet, make the result of calculation transmission of described processor to described main website.
Load tap changer Real time displaying system the most according to claim 8, it is characterised in that described processor is with described
Isolation circuit it is provided with between Ethernet interface.
Load tap changer Real time displaying system the most according to claim 7, it is characterised in that described main website is used for showing
Show the ginseng of the result of calculation of the described processor transformator corresponding with load tap changer Real time displaying device at least one described
Number information, is additionally operable to send control instruction to described load tap changer Real time displaying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069726.6A CN106324409A (en) | 2016-11-28 | 2016-11-28 | Transformer tap online display device and transformer tap online display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069726.6A CN106324409A (en) | 2016-11-28 | 2016-11-28 | Transformer tap online display device and transformer tap online display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106324409A true CN106324409A (en) | 2017-01-11 |
Family
ID=57817430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611069726.6A Pending CN106324409A (en) | 2016-11-28 | 2016-11-28 | Transformer tap online display device and transformer tap online display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324409A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019075908A1 (en) * | 2017-10-19 | 2019-04-25 | 中领世能（天津）科技有限公司 | Apparatus and system for protecting electric power utilization, and control method for apparatus for protecting electric power utilization |
| CN110196370A (en) * | 2019-06-26 | 2019-09-03 | 山东电工电气集团智能电气有限公司 | The monitoring method and device of transformer |
| CN112865164A (en) * | 2021-01-19 | 2021-05-28 | 南方电网科学研究院有限责任公司 | Method, device and medium for judging and controlling faults of hybrid direct-current power transmission system |
| CN113937889A (en) * | 2021-10-15 | 2022-01-14 | 国网河北省电力有限公司魏县供电分公司 | Transformer voltage regulation gear balance early warning method, early warning device and early warning equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821315U (en) * | 2009-12-09 | 2011-05-04 | 北京水木源华电气有限公司 | Loaded voltage-adjusting control system of transformer |
| CN102879699A (en) * | 2012-08-20 | 2013-01-16 | 中国电力科学研究院 | Method for estimating position of branching joint of transformer in transformer substation |
| CN104865455A (en) * | 2015-06-23 | 2015-08-26 | 江苏省电力公司苏州供电公司 | Distribution transformer transformation ratio measuring instrument and measuring method |
| CN204886771U (en) * | 2015-07-09 | 2015-12-16 | 邯郸市奥瑞电子机械有限公司 | Flexible control regulator of distribution transformer tap |
-
2016
- 2016-11-28 CN CN201611069726.6A patent/CN106324409A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821315U (en) * | 2009-12-09 | 2011-05-04 | 北京水木源华电气有限公司 | Loaded voltage-adjusting control system of transformer |
| CN102879699A (en) * | 2012-08-20 | 2013-01-16 | 中国电力科学研究院 | Method for estimating position of branching joint of transformer in transformer substation |
| CN104865455A (en) * | 2015-06-23 | 2015-08-26 | 江苏省电力公司苏州供电公司 | Distribution transformer transformation ratio measuring instrument and measuring method |
| CN204886771U (en) * | 2015-07-09 | 2015-12-16 | 邯郸市奥瑞电子机械有限公司 | Flexible control regulator of distribution transformer tap |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019075908A1 (en) * | 2017-10-19 | 2019-04-25 | 中领世能（天津）科技有限公司 | Apparatus and system for protecting electric power utilization, and control method for apparatus for protecting electric power utilization |
| CN110196370A (en) * | 2019-06-26 | 2019-09-03 | 山东电工电气集团智能电气有限公司 | The monitoring method and device of transformer |
| CN110196370B (en) * | 2019-06-26 | 2021-05-04 | 山东电工电气集团智能电气有限公司 | Transformer monitoring method and device |
| CN112865164A (en) * | 2021-01-19 | 2021-05-28 | 南方电网科学研究院有限责任公司 | Method, device and medium for judging and controlling faults of hybrid direct-current power transmission system |
| CN113937889A (en) * | 2021-10-15 | 2022-01-14 | 国网河北省电力有限公司魏县供电分公司 | Transformer voltage regulation gear balance early warning method, early warning device and early warning equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108879702B (en) | Power utilization control system based on household load decomposition | |
| CN106324409A (en) | Transformer tap online display device and transformer tap online display system | |
| CN107102259A (en) | A kind of State-Inspect of High-Voltage Circuit method and system of Multi-information acquisition | |
| CN103472331A (en) | Photovoltaic power generation fault diagnosis system based on photovoltaic physical model | |
| CN108233531A (en) | A kind of packaged type low-voltage electric energy mass monitoring system and method | |
| CN109975694A (en) | A kind of relay status monitoring system | |
| CN103259333A (en) | Intelligent alarming and integrated fault analysis system | |
| CN114646820A (en) | System and method for improving identification of problems associated with detecting abnormal conditions | |
| CN104113138A (en) | Power-event collection system based on low-voltage power-line carrier communication | |
| CN110850357A (en) | Remote comprehensive processing system and method for electric energy metering device | |
| CN203013082U (en) | 10kV digital power distribution room simulation training system | |
| McDonald | Leader or follower [The business scene] | |
| CN206411209U (en) | Surge arrester failure monitoring system and electric energy quality monitoring system | |
| CN204882853U (en) | Electric energy meter pressure resistance test installation | |
| CN106707019A (en) | Service robot electric quantity monitoring device | |
| CN206922508U (en) | Universal rural power grids intelligence distribution transformer terminals | |
| CN112671095A (en) | Intelligent power distribution terminal and function modularization method, type selection method and expansion method thereof | |
| CN104237838A (en) | Metering working voltage drop automatic test platform and voltage drop modes | |
| CN102284886B (en) | Portable intelligent installation-debugging guidance and fault diagnosis device | |
| CN107367706A (en) | System for electronized investigation and analysis electric energy meter are unusual | |
| CN206670791U (en) | A kind of hand-held point logging | |
| CN109600116B (en) | Movable photovoltaic grid-connected detection system | |
| CN209373816U (en) | Low-voltage collecting meter reading training cabinet, low-voltage collecting meter reading training system | |
| CN206452184U (en) | Power information harvester and its system | |
| CN208140883U (en) | The CAN bus system of high-voltage circuitbreaker running state real-time monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zeng Tengyu Inventor after: Zhu Feng Inventor after: Yan Yan Inventor after: Meng Kai Inventor after: Hu Tenghua Inventor after: Yang Mingyao Inventor after: Qi Xiangdong Inventor after: Fu Jinglei Inventor after: Gao Weifei Inventor before: Zeng Tengyu |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |