CN206461363U - Transformer fling-cut system and power network fling-cut system - Google Patents
Transformer fling-cut system and power network fling-cut system Download PDFInfo
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- CN206461363U CN206461363U CN201720075932.1U CN201720075932U CN206461363U CN 206461363 U CN206461363 U CN 206461363U CN 201720075932 U CN201720075932 U CN 201720075932U CN 206461363 U CN206461363 U CN 206461363U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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Abstract
The utility model is related to a kind of transformer fling-cut system and power network fling-cut system, including：Monitoring system, n incoming current suppression device, n breaker and n transformer.N is natural number, and n >=1.Each breaker is connected between power network and a transformer.Each incoming current suppression device is connected with monitoring system, and divide-shut brake command input end is used to receive combined floodgate order and separating brake order from power grid control backstage.The first voltage collection terminal of each incoming current suppression device, second voltage collection terminal, shutting-brake control output end, separating brake control output end correspond to be connected with the separating brake control loop of the common port of power network, breaker and transformer, the shutting-brake control loop of breaker, breaker respectively.The transformer fling-cut system and power network fling-cut system, realize transient state switching phase controlling by monitoring system and the common cooperation of incoming current suppression device, improve intellectuality and operability of the transformer fling-cut system in engineer applied.
Description
Technical field
The utility model is related to electric power network technique field, more particularly to a kind of transformer fling-cut system and power network switching system
System.
Background technology
Transformer in power system in primary equipment is nonlinear load, when carrying out powered switching operation, can be random
There is the switching overvoltage of amplitude or the transient process of inrush phenomenon, so as to trip protection, system voltage fluctuation occur, produce
The damages such as a large amount of harmonic pollutions, the safe operation to power system produces significant impact.
To solve the transient state switching influence of a non-linear equipment from source, transient state switching phase controlling can be carried out
Incoming current suppression device arises at the historic moment.Incoming current suppression device belongs to secondary device category, with split-phase and coordinated signals switching opportunity
Function, i.e., divide-shut brake is realized by controlling breaker according to specified angle, so as to reduce the switching of above-mentioned nonlinear load
Transient State Influence.Incoming current suppression device is designed with the correction algorithm of various control breaker operator time, it is ensured that what reality was controlled can
By property and stability.Incoming current suppression device is directed to different types of breaker and different types of part throttle characteristics, takes different
Control strategy, by convenient, flexible setting control parameter and definite value, realizes the mistake for effectively suppressing to produce by breaker operator
Voltage and shove.In addition, incoming current suppression device is designed with the conventional human-computer interaction function such as liquid crystal, button, in order to be answered in engineering
The important parameters and control effect etc. such as control angle, control time are obtained and analyzed in.Wherein, incoming current suppression device
Simple figure, device parameter definite value and event wave-record chart etc. are shown by liquid crystal, modification is performed by button, it is mobile and
The operation such as execution, passes through indicator lamp and indicates the status information related to work.Also, in order to realize scene to device definite value, survey
The debugging maintenance work such as the monitoring and export preservation of data are measured, incoming current suppression device also needs to the abundant outside debugging of allocation function
Environment.
However, mainly these the conventional simple friendships by liquid crystal interface, button and indicator lamp of traditional incoming current suppression device
Mutual mode realizes man-machine interaction, therefore so that transformer fling-cut system has larger limitation in application aspect.
Utility model content
Based on this, it is necessary to there is larger limitation in application aspect for how to improve traditional transformer fling-cut system
The problem of there is provided a kind of transformer fling-cut system and power network fling-cut system.
A kind of transformer fling-cut system, including：Monitoring system, n incoming current suppression device, n breaker and n transformation
Device；Wherein, the n is natural number, and n >=1；
Each breaker is connected between power network and a transformer；Each incoming current suppression device with
The monitoring system connection；The divide-shut brake command input end of each incoming current suppression device, which is used to receive, comes from power grid control backstage
Combined floodgate order and separating brake order；The first voltage collection terminal of each incoming current suppression device, second voltage collection terminal, control of closing a floodgate
Output end processed, separating brake control output end are corresponded to respectively and power network, the common port of the breaker and the transformer, the open circuit
The shutting-brake control loop of device, the connection of the separating brake control loop of the breaker；
Each incoming current suppression device is used for after close a floodgate order, the separating brake order is received, and basis is collected respectively
Grid side voltage and breaker control corresponding with the public terminal voltage of the transformer breaker closed a floodgate, divided
Lock, and each incoming current suppression device is additionally operable to transmit data between the monitoring system.
In one of the embodiments, each incoming current suppression device passes through network connection with the monitoring system.
In one of the embodiments, the first voltage collection terminal of each incoming current suppression device passes through mutual induction of voltage
Device connects power network.
In one of the embodiments, the second voltage collection terminal of each incoming current suppression device passes through mutual induction of voltage
Device connects the common port of the breaker and the transformer.
In one of the embodiments, the positional information input of each incoming current suppression device connects the breaker.
In one of the embodiments, the current acquisition input of each incoming current suppression device is connected by current transformer
Get access to grid.
A kind of power network fling-cut system, for carrying out switching control to transformer, including：Monitoring system, n surge suppression dress
Put and n breaker；Wherein, the n is natural number, and n >=1；
Each breaker is connected between power network and a transformer；Each incoming current suppression device with
The monitoring system connection；The divide-shut brake command input end of each incoming current suppression device, which is used to receive, comes from power grid control backstage
Combined floodgate order and separating brake order；The first voltage collection terminal of each incoming current suppression device, second voltage collection terminal, control of closing a floodgate
Output end processed, separating brake control output end are corresponded to respectively and power network, the common port of the breaker and the transformer, the open circuit
The shutting-brake control loop of device, the connection of the separating brake control loop of the breaker；
Each incoming current suppression device is used for after close a floodgate order, the separating brake order is received, and basis is collected respectively
Grid side voltage and breaker control corresponding with the public terminal voltage of the transformer breaker closed a floodgate, divided
Lock, and each incoming current suppression device is additionally operable to transmit data between the monitoring system.
In one of the embodiments, each incoming current suppression device passes through network connection with the monitoring system.
In one of the embodiments, the positional information input of each incoming current suppression device connects the breaker.
In one of the embodiments, the current acquisition input of each incoming current suppression device is connected by current transformer
Get access to grid.
Above-mentioned transformer fling-cut system and power network fling-cut system have the advantage that for：In the transformer fling-cut system and
In power network fling-cut system, each incoming current suppression device is connected with power grid control backstage, breaker, power network respectively, so as to connect
Receive after combined floodgate order, separating brake order, respectively according to the common port electricity of the grid side voltage and breaker and transformer collected
Pressure correspondence control breaker is closed a floodgate, separating brake.Also, each incoming current suppression device is also connected with monitoring system, and is respectively shoved
Restraining device is additionally operable between monitoring system transmit data.Therefore, above-mentioned transformer fling-cut system and power network fling-cut system, by
Monitoring system and incoming current suppression device coordinate to realize transient state switching phase controlling jointly, so as to by incoming current suppression device
Certain applications function, maintenance configuration operation etc. are transferred to monitoring system to realize, can extend traditional incoming current suppression device can not
The data record and analytic function of realization, so that it is intelligent and operable in engineer applied to improve transformer fling-cut system
Property, expand application.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, the accompanying drawing of other embodiment can also be obtained according to these accompanying drawings.
The circuit diagram that Fig. 1 is related to for the transformer fling-cut system that an embodiment is provided；
Fig. 2 is the structural representation of the transformer fling-cut system of embodiment illustrated in fig. 1；
The one of which function that Fig. 3 can realize for the monitoring system in the transformer fling-cut system of embodiment illustrated in fig. 1
Organization Chart.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
The understanding for opening content is more thorough comprehensive.
Unless otherwise defined, technical field of all of technologies and scientific terms used here by the article with belonging to utility model
The implication that is generally understood that of technical staff it is identical.It is intended merely to retouch in the term used in the description of utility model herein
State the purpose of specific embodiment, it is not intended that limitation the utility model.Term as used herein "and/or" include one or
The arbitrary and all combination of multiple related Listed Items.
One embodiment provides a kind of transformer switching control system, as shown in Figure 1 and Figure 2, including：Monitoring system 100, n
Individual incoming current suppression device 200, n breaker 300 and n transformer 400.Wherein, n is natural number, and n >=1.Need explanation
It is that one group of incoming current suppression device 200, breaker 300, transformer 400 are illustrate only in figure.Wherein, monitoring system 100 is calculating
Machine or intelligence degree is identical with computer or other equipment higher than computer.Also, operated for the ease of user,
Monitoring system 100 is interacted using graphical operation interface with user.
Each breaker 300 is connected between power network and a transformer 400.Each incoming current suppression device 200 with prison
Control system 100 is connected.The divide-shut brake command input end of each incoming current suppression device 200 is sent for receiving power grid control backstage 500
Combined floodgate order and separating brake order.The first voltage collection terminal of each incoming current suppression device 200, second voltage collection terminal, control of closing a floodgate
Output end processed, separating brake control output end correspond to common port, the breaker 300 with power network, breaker 300 and transformer 400 respectively
Shutting-brake control loop, the separating brake control loop of breaker 300 connection.
Wherein, power grid control backstage 500 can be the back-stage management in power network background management system or power station, power plant
System.The first voltage collection terminal of each incoming current suppression device 200 can gather grid side voltage, as the reference of phase-controlled,
To determine switching angle, separating brake angle.The second voltage collection terminal of each incoming current suppression device 200 can gather respectively breaker 300 with
The three-phase voltage of the common port of transformer 400, as the reference of the actuation time of breaker 300, to improve the effective of surge suppression
Property.The shutting-brake control output end of each incoming current suppression device 200 is used to input shutting-brake control to the shutting-brake control loop of breaker 300
Order, to control breaker 300 to close a floodgate.The separating brake control output end of each incoming current suppression device 200 is used for point to breaker 300
Lock control loop inputs separating brake control command, to control the separating brake of breaker 300.
In the embodiment of the present invention, each incoming current suppression device 200 is used for after close a floodgate order, separating brake order is received, respectively
Carried out according to the grid side voltage and breaker 300 that collect control breaker 300 corresponding with the public terminal voltage of transformer 400
Close a floodgate, separating brake, and each incoming current suppression device 200 is additionally operable to transmit data between monitoring system 100.
Wherein, each incoming current suppression device 200 control breaker 300 close a floodgate, the process of separating brake, be referred to tradition and shove suppression
The implementation method of device processed, thus effectively suppress operating breaker 300 and produce overvoltage or shove.Specifically, due to becoming
The mechanism of production of the excitation surge current of depressor 400 is to follow magnetism chain conservation principle, i.e., the magnetic interlinked with inductance coil based on inductance coil
It is logical to be mutated, and magnetic flux 90 ° of lagging voltage in phase, therefore when inside transformer 400 without residual flux, select in electricity
Voltage crest value, the generation shoved will be prevented effectively from by being closed a floodgate when magnetic flux is 0；And when having residual flux in transformer 400, if can learn
The polarity and numerical value of remanent magnetism, the moment for calculating to be equal to residual flux in expected magnetic flux according to voltage integrating meter close a floodgate, also will be effective
Avoid the generation shoved.Thus, in the case where must take into consideration and have residual flux inside transformer 400, suppress to shove is optimal
Strategy is no matter split-phase is operated or combined operation, while to separating brake, closing a floodgate synchronizes control；Separating brake control can not carried out
Under occasion, using reclosing phase by phase Synchronization Control, good surge suppression effect can be also obtained.
In addition, the partial functions such as control application, storage and display can also be transferred to visually by each incoming current suppression device 200
Realized in the monitoring system 100 of change.Specifically, incoming current suppression device 200 can be by point information, the thing related to divide-shut brake
More than one or both of part, measurement data, recorder data transmit to monitoring system 100, so that manager can lead to
The pattern manipulation interface for crossing monitoring system 100 such as is checked, is changed, analyzed and preserved at the operation.Also, monitoring system 100
Incoming current suppression device 200 can be configured.
In the embodiment of the present invention, Fig. 3 is refer to, the function that monitoring system 100 is realized can include engineering management, event pipe
The functional modules such as reason, setting management, measurement data management, recording management.
On incident management：The type of event can include self-inspection event, remote signalling event, Action Events, protection event etc..
Monitoring system 100 can obtain event from each incoming current suppression device 200, and according to scope, the event class for producing event time
The conditional information retrieval such as type event is ranked up, and the event obtained every time storage is arrived into database.
On setting management：Definite value can include switching manipulation type, rated power, allow frequency difference, shutting-brake control mode,
Separating brake control mode etc..Monitoring system 100 can obtain the definite value from each incoming current suppression device 200 or be imported from file
Definite value.The definite value page of monitoring system 100 can provide by type, definite value area code retrieve definite value function.In the definite value of display
It can be arranged in list with edit digital values, and check whether the definite value of input exceeds allowed band, if it is, prompting mistake, and will
The definite value of modification is issued in corresponding incoming current suppression device 200.After solidification definite value is clicked on, the definite value of setting is in surge suppression
Device 200 can come into force.Furthermore it is also possible to export definite value, and the form of derived definite value file is Excel tables, data row with
The list of display preserves consistent.
On measurement data management：Measurement data can include intake, and (model selection, startup verification of closing a floodgate, separating brake are opened
Dynamic verification etc.), analog quantity (grid side voltage, controlled side voltage etc.) etc..Monitoring system 100 can be obtained from each surge suppression
The measurement data of device 200, and measurement data is retrieved in each measurement data of measurement data interface display and according to type, may be used also
So that manager chooses whether the measurement data that periodic refresh is shown, measured while can also be read for manager's modification timing
The interval time of data.In addition, equally measurement data can be exported from monitoring system 100.
On recording management：Monitoring system 100 extracts the recorder data of each incoming current suppression device 200, and is stored in engineering
Under catalogue file.The display waveform page of monitoring system 100 can set the analog quantity channel of display, intake passage, output
Passage, display two sub-values or a sub-value, whether to waveform carry out Zero-drifting processing.The data of display waveform have sampled value, virtual value,
Simulate measuring angle.The right button menu of waveform display interface can select display channel, whether colour shows, whether shows virtual value
Deng operation., can horizontal, vertical zoom waveform by the zoom tool bar of toolbar.Can be with the lower right corner of status bar
The date-time of the mouse position of the display waveform page.Choose the recorded wave file on navigation tree, click right menu can be with
Display waveform, selection delete file, complete deletion file, the recorded wave file for exporting comtrade forms.Furthermore it is also possible to record
Wave number evidence is merged.
Specifically, above-mentioned each functional module of monitoring system 100 includes interface view module, logic business module, net
Network service module, file service module, print module, language management module, engineering management module.Each incoming current suppression device 200
It also is provided with corresponding service module：Network service module, file service module, storage device.Wherein, network service module is wrapped again
Include：Definite value service, Event Service, measured data service, recording service.
Monitoring system 100 can use distributed system architecture, and it, which has the special feature that, is：Each subsystem independent operating, phase
It is mutually independent, do not influenceed by each other；Maximally utilizing for resource, prison is passed through by the partial function of incoming current suppression device 200
The correlation subsystem operation of control system 100, improves operational efficiency；Do not limited by the actual distance of each subsystem, so as to
Realize remote-controllable.Specifically, the software section of monitoring system 100 can use MVC (Model View Controller, mould
Type-View-Controller) framework thought.MVC form and functions are clearly, well arranged, it is easy to management and maintenance.In addition, monitoring system
System 100 can also using pair buffers, UDP (User Datagram Protocol, UDP) network technology,
The technologies such as ADO (ActiveX Data Objects, ActiveX Data Objects) data access.
Therefore, above-mentioned transformer fling-cut system, from monitoring system and incoming current suppression device it is common with realize transient state switching
Phase controlling, so as to which the certain applications function of incoming current suppression device, maintenance configuration operation etc. are transferred into monitoring system
Realize, data record and analytic function that incoming current suppression device can not realize can be realized, be convenient for crash analysis, data standby
The day-to-day operation maintenance works such as part, so that intellectuality and operability of the transformer fling-cut system in engineer applied are improved,
Expand application.
In one of the embodiments, each incoming current suppression device 200 is respectively with monitoring system 100 by network connection, from
And many networkings of incoming current suppression device 200 can be realized, so that the effect of control is managed come remote centralized by monitoring system 100.
Each incoming current suppression device 200 and the specific connected mode of monitoring system 100 can be：Netting twine is direct-connected, wireless network is connected or passed through
The internetwork connection modes such as interchanger forwarding.
Specifically, data transmission media between each incoming current suppression device 200 and monitoring system 100 for 5 classes or can surpass 5
Type shielding twisted-pair feeder.Also, the electric interfaces of twisted-pair feeder can be configured with RJ45 interfaces for RJ45 interfaces, i.e. monitoring system 100,
Incoming current suppression device 200 also is provided with RJ45 interfaces.Therefore, when incoming current suppression device 200 and monitoring system 100 pass through data transfer
Medium is connected, and incoming current suppression device 200 and monitoring system 100 are respectively configured after address, and monitoring system 100 can lead to
Cross the data or configuration incoming current suppression device 200 of Network Capture incoming current suppression device 200.
Further, for the reliability of raising communication, the communication between incoming current suppression device 200 and monitoring system 100
Cheng Caiyong question-response patterns, and there is error retransmission mechanism, i.e.,：Sender sends a bag data bag, and recipient must respond
One bag data bag, if recipient receives normal, responds a bag and correctly confirms packet, conversely, then responding a bag error check
Packet.In the embodiment of the present invention, repeating transmission is mainly controlled by monitoring system 100.In addition, to ensure the packet sent and received
Correspond, timestamp is all carried in the packet, so as to avoid giving an irrelevant answer.
Specifically, during incoming current suppression device 200 transmits data to monitoring system 100, monitoring system 100 is first
Read data packet is sent, then returned content is actual queries or the packet of reading to incoming current suppression device 200.Monitoring system 100
Receive after correct packet, send correct confirmation packet to incoming current suppression device 200, afterwards incoming current suppression device 200
Continue to send next bag data bag.And if when monitoring system 100 receives abnormal, then sending mistake to incoming current suppression device 200
Confirm packet, incoming current suppression device 200 then retransmits upper bag data bag.If continuously error three times of same bag data bag, or
It is the accumulative error of whole reading process 100 times, then points out mistake, hang up.
Therefore, the embodiment of the present invention is by way of taking network communication, so as to realize by 100 pairs of monitoring system
Each incoming current suppression device 200 carries out the central controlled effect of real time remote.Also, monitoring system 100 can also occur in time
Fixed a breakdown during accident by being analyzed the data that incoming current suppression device 200 is uploaded and then taking corresponding measure, so that
The problem of overcoming the operation limitation such as traditional incoming current suppression device space, time.
In one of the embodiments, Fig. 1 is refer to, the first voltage collection terminal of incoming current suppression device 200 passes through voltage
Transformer TV connection power networks.The second voltage collection terminal of incoming current suppression device 200 passes through voltage transformer TV connections breaker 300
With the common port of transformer 400.It is the high-voltage signal in primary system due to the alternating voltage of the both sides of breaker 300, therefore needs
To be inputted again in incoming current suppression device 200 after voltage transformer is converted.
In addition, the positional information input connection breaker 300 of incoming current suppression device 200, for obtaining breaker 300
Divide position or close position state.The current acquisition input of incoming current suppression device 200 is by current transformer TA connection power networks, for adopting
Collect line current, using the basis for estimation as surge suppression effect.Wherein, due to line current (i.e. when power network, breaker 300,
The electric current of circuit that transformer 400 is constituted after turning on) it is high-voltage signal in primary system, it is therefore desirable to pass through current transformer
Inputted again in incoming current suppression device 200 after conversion.Specifically, the current acquisition input of incoming current suppression device 200 passes through electric current
Transformer TA gathers three-phase line electric current respectively.Line current is essentially null value after the idle-loaded switching-on of breaker 300, but in transformation
During 400 idle-loaded switching-on of device, can using close a floodgate when line current size as surge suppression effect basis for estimation.
Specifically, refer to Fig. 2, incoming current suppression device 200 includes exchange plug-in unit, receiver, signal output and inserted
Part, CPU card, power insert, human-machine interface module and bus board (not shown).Each plug-in unit or module pass through
Bus board links together.Wherein, exchange plug-in unit, receiver, signal output plug-in unit, human-machine interface module are respectively with
Central processor plug-in unit is electrically connected.
Wherein, (i.e. grid side is electric by alternating voltage of the voltage transformer access from the both sides of breaker 300 for exchange plug-in unit
Pressure and controlled side voltage), and pass through current transformer line attachment electric current.In the embodiment of the present invention, exchange plug-in unit includes gushing
Flow first voltage collection terminal, the second voltage collection terminal of restraining device 200, current acquisition input.
Receiver is used for the positional information for gathering breaker 300, in addition it is also necessary to receives and comes from power grid control backstage 500
Separating brake order, order of closing a floodgate start incoming current suppression device 200.In the embodiment of the present invention, receiver includes shoving
Divide-shut brake command input end, the positional information input of restraining device 200.
Signal output plug-in unit, for exporting separating brake control command, separating brake control command correspondence into the control box of breaker 300
Separating brake control loop, shutting-brake control loop, so as to realize the phase-controlled of the divide-shut brake of breaker 300.In the embodiment of the present invention,
Signal output plug-in unit includes shutting-brake control output end and the separating brake control output end of incoming current suppression device 200.
CPU card is the control core of incoming current suppression device 200, for receiving exchange plug-in unit and signal input
The data of plug-in unit collection, and the progress phase selection control after the combined floodgate order sent on power grid control backstage 500 or separating brake order is received
System is calculated, to send shutting-brake control order or separating brake control life to breaker 300 by signal output plug-in unit in the predetermined time
Order.In addition, CPU card is additionally operable to record the working condition and sampled data of incoming current suppression device 200, such as
Record the data such as intake state change, definite value parameter modification information, divide-shut brake control of export event and action recording, and by this
A little data are uploaded to monitoring system 100.
Power insert, the outside working power provided of access, and be converted to what the inner member of incoming current suppression device 200 was used
The DC voltage of multiple grades.
Human-machine interface module, is the front panel of incoming current suppression device 200, is designed with liquid crystal display, button and indicator lamp,
For carrying out man-machine interactive operation.
Bus board realizes collection and the transmission of control signal there is provided above-mentioned each plug-in unit and the hardware interface of module.
Next by taking the transformer fling-cut system shown in Fig. 1 as an example, the operation principle of transformer fling-cut system is sketched.
Incoming current suppression device 200 works on power, and breaker 300 does not access power network also in a point position state, transformer 400.
After incoming current suppression device 200 receives the combined floodgate order of the transmission of power grid control backstage 500, the power network gathered with voltage transformer
Side voltage is zero passage angle reference, and combines the actuation time of breaker 300, and control breaker 300 is in expected level angle
Close a floodgate, transformer 400 is accessed power network, so as to realize the surge suppression closing operation of transformer 400.Meanwhile, in surge suppression
During the entire process of device 200 works, incoming current suppression device 200 is set up communication by network with monitoring system 100 and is connected, and monitors
System 100 extracts measurement data, definite value parameter setting, event that incoming current suppression device 200 is transmitted using graphical operation menu
And the information such as recorder data, so that manager such as is checked, is changed, analyzed and preserved at the operation.
In another embodiment, a kind of power network fling-cut system is additionally provided, for carrying out switching control to transformer, it is special
Levy and be, including：Monitoring system, n incoming current suppression device and n breaker；Wherein, the n is natural number, and n >=1.
Each breaker is connected between power network and a transformer.Each incoming current suppression device with
The monitoring system connection.The divide-shut brake command input end of each incoming current suppression device, which is used to receive, comes from power grid control backstage
Combined floodgate order and separating brake order.The first voltage collection terminal of each incoming current suppression device, second voltage collection terminal, control of closing a floodgate
Output end processed, separating brake control output end are corresponded to respectively and power network, the common port of the breaker and the transformer, the open circuit
The shutting-brake control loop of device, the connection of the separating brake control loop of the breaker.
Each incoming current suppression device is used for after close a floodgate order, the separating brake order is received, and basis is collected respectively
Grid side voltage and breaker control corresponding with the public terminal voltage of the transformer breaker closed a floodgate, divided
Lock, and each incoming current suppression device is additionally operable to transmit data between the monitoring system.
In one of the embodiments, each incoming current suppression device passes through network connection with the monitoring system.
In one of the embodiments, the first voltage collection terminal of each incoming current suppression device passes through mutual induction of voltage
Device connects power network.
In one of the embodiments, the second voltage collection terminal of each incoming current suppression device passes through mutual induction of voltage
Device connects the common port of the breaker and the transformer.
In one of the embodiments, the positional information input of each incoming current suppression device connects the breaker.
In one of the embodiments, the current acquisition input of each incoming current suppression device is connected by current transformer
Get access to grid.
It should be noted that the monitoring system being related in power network fling-cut system provided in an embodiment of the present invention, suppression of shoving
Device processed, breaker and transformer are corresponding with the transformer fling-cut system that a upper embodiment is provided, and just repeat no more here.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of transformer fling-cut system, it is characterised in that including：Monitoring system, n incoming current suppression device, n breaker and
N transformer；Wherein, the n is natural number, and n >=1；
Each breaker is connected between power network and a transformer；Each incoming current suppression device with it is described
Monitoring system is connected；The divide-shut brake command input end of each incoming current suppression device is used to receive the conjunction from power grid control backstage
Lock order and separating brake order；First voltage collection terminal, second voltage collection terminal, the shutting-brake control of each incoming current suppression device are defeated
Go out end, separating brake control output end respectively to correspond to and power network, the common port of the breaker and the transformer, the breaker
Shutting-brake control loop, the connection of the separating brake control loop of the breaker；
Each incoming current suppression device is used for after close a floodgate order, the separating brake order is received, respectively according to the electricity collected
Voltage on line side and the breaker control breaker corresponding with the public terminal voltage of the transformer are closed a floodgate, separating brake,
And each incoming current suppression device is additionally operable to transmit data between the monitoring system.
2. transformer fling-cut system according to claim 1, it is characterised in that each incoming current suppression device with it is described
Monitoring system passes through network connection.
3. transformer fling-cut system according to claim 1, it is characterised in that described the of each incoming current suppression device
One voltage acquisition end connects power network by voltage transformer.
4. transformer fling-cut system according to claim 1, it is characterised in that described the of each incoming current suppression device
Two voltage acquisition ends connect the common port of the breaker and the transformer by voltage transformer.
5. transformer fling-cut system according to claim 1, it is characterised in that the position letter of each incoming current suppression device
Cease input and connect the breaker.
6. transformer fling-cut system according to claim 1, it is characterised in that the electric current of each incoming current suppression device is adopted
Collection input connects power network by current transformer.
7. a kind of power network fling-cut system, for carrying out switching control to transformer, it is characterised in that including：Monitoring system, n
Incoming current suppression device and n breaker；Wherein, the n is natural number, and n >=1；
Each breaker is connected between power network and a transformer；Each incoming current suppression device with it is described
Monitoring system is connected；The divide-shut brake command input end of each incoming current suppression device is used to receive the conjunction from power grid control backstage
Lock order and separating brake order；First voltage collection terminal, second voltage collection terminal, the shutting-brake control of each incoming current suppression device are defeated
Go out end, separating brake control output end respectively to correspond to and power network, the common port of the breaker and the transformer, the breaker
Shutting-brake control loop, the connection of the separating brake control loop of the breaker；
Each incoming current suppression device is used for after close a floodgate order, the separating brake order is received, respectively according to the electricity collected
Voltage on line side and the breaker control breaker corresponding with the public terminal voltage of the transformer are closed a floodgate, separating brake,
And each incoming current suppression device is additionally operable to transmit data between the monitoring system.
8. power network fling-cut system according to claim 7, it is characterised in that each incoming current suppression device with the prison
Control system passes through network connection.
9. power network fling-cut system according to claim 7, it is characterised in that the positional information of each incoming current suppression device
Input connects the breaker.
10. power network fling-cut system according to claim 7, it is characterised in that the electric current of each incoming current suppression device is adopted
Collection input connects power network by current transformer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075932.1U CN206461363U (en) | 2017-01-20 | 2017-01-20 | Transformer fling-cut system and power network fling-cut system |
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| CN201720075932.1U CN206461363U (en) | 2017-01-20 | 2017-01-20 | Transformer fling-cut system and power network fling-cut system |
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| CN206461363U true CN206461363U (en) | 2017-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067511A (en) * | 2021-03-12 | 2021-07-02 | 华能国际电力股份有限公司上海石洞口第一电厂 | Inrush current suppression system and method for single-side power transformer |
| CN113937731A (en) * | 2021-09-29 | 2022-01-14 | 南京钢铁股份有限公司 | Method for restraining magnetizing inrush current of transformer |
-
2017
- 2017-01-20 CN CN201720075932.1U patent/CN206461363U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067511A (en) * | 2021-03-12 | 2021-07-02 | 华能国际电力股份有限公司上海石洞口第一电厂 | Inrush current suppression system and method for single-side power transformer |
| CN113937731A (en) * | 2021-09-29 | 2022-01-14 | 南京钢铁股份有限公司 | Method for restraining magnetizing inrush current of transformer |
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