CN108333441A - Secondary phase checking device and system - Google Patents
Secondary phase checking device and system Download PDFInfo
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- CN108333441A CN108333441A CN201810419092.5A CN201810419092A CN108333441A CN 108333441 A CN108333441 A CN 108333441A CN 201810419092 A CN201810419092 A CN 201810419092A CN 108333441 A CN108333441 A CN 108333441A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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Abstract
The present invention provides secondary phase checking device and systems, are related to circuit detection technique field, wherein the secondary phase checking device includes：Acquisition terminal, data connection terminal and background terminal, acquisition terminal is connected by data connection terminal with background terminal, when work, the secondary PT signals of individual event that acquisition terminal acquires electrical equipment one by one by 3-phase plug, until every road power supply of electrical equipment, which all acquires, to be finished, the secondary PT signals of individual event are sent to background terminal by data connection terminal, background terminal is by the secondary PT signals channeling power supply signal of individual event and is combined nuclear phase, to judge multiple power supplies signal for phase or out-phase, wherein, combination nuclear phase be to the three-phase electric signal in every two-way power supply signal respectively according toOperation compares two-by-two after selecting the secondary PT signals of individual event, by the combination nuclear phase to every two-way power supply, then the step of whether phase sequence of electrical equipment power supply is positive phase sequence etc., eliminates artificial investigation is judged, convenient and efficient.
Description
Technical field
The present invention relates to circuit detection technique field more particularly to secondary phase checking device and systems.
Background technology
Nuclear phase refers to checking two power supplys or loop phase, phase with instrument or other means in electric system electric operation
Whether sequence is identical.In use, multiple power supplys are will also include in electric system sometimes, i.e., multiple power supplys are simultaneously to same
Electrical equipment is powered.In this case, when multiple power supplys come into operation, nuclear phase is carried out on the point arranged side by side of power supply.
When multiple power supplies signal falls electricity side by side, if phase sequence (phase) is inconsistent, serious short circuit accident can be caused, influence normally to supply
Electricity.When need to have a power failure down electricity when, if the inconsistent abnormal running that can cause three-phase equipment of phase sequence (phase), for example, motor is anti-
Turn, false protection etc..Therefore, it when there is other power supplys to participate in equipment power supply, first has to two power circuits carrying out nuclear phase.In order to
It reduces accident event, associate power system operation management because caused by phase sequence is inconsistent and requires clear stipulaties：It is all be related to creating,
Reconstruction, enlarging or change circuit and change (matching) electricity work, nuclear phase must be carried out after work.
Different according to the mode of nuclear phase, nuclear phase work can be divided into a nuclear phase and secondary nuclear phase.Nuclear phase is to use core
Phase device is in direct contact the conductor of exposed primary system, carries out nuclear phase to a signal, the voltage of a nuclear phase is higher；Secondary core
It is mutually that a signal of high voltage is converted into low pressure using voltage transformer (Potential Transformer, abbreviation PT)
Secondary singal after, to secondary singal carry out nuclear phase, be a kind of indirect nuclear phase.Therefore, phasing tester is also corresponding is divided into once
Phasing tester and secondary phasing tester.In power cable line, due to the characteristic of cable run, the nuclear phase work of involved cable
Make, is often referred to be judged using secondary nuclear phase.
In specific implementation process, operation power staff mainly carries out two using common single-phase phasing tester to ring main unit
Secondary nuclear phase, since synchronization can only check a phase, and therefore, each phase in three-phase electricity is required for carrying out core with offside three-phase
It is right, need in total verification 9 times, sometimes even need repeated multiple times verification, in this way, manual site's nuclear phase operate when the time spent in
It is relatively long, step is more, manual operation is inconvenient, also, be easy error.
To sum up, effective solution is there is no about the problem for relying on manual operation time-consuming and laborious during secondary nuclear phase at present
Method.
Invention content
In view of this, the embodiment of the present invention has been designed to provide secondary phase checking device and system, acquired by being arranged
Terminal, data connection terminal and background terminal etc., improve the convenience that secondary nuclear phase is carried out to electrical equipment.
In a first aspect, an embodiment of the present invention provides secondary phase checking devices, including：Acquisition terminal, data connection terminal and
Background terminal；
Acquisition terminal is connected by data connection terminal with background terminal；
Acquisition terminal, the secondary PT signals of individual event for acquiring electrical equipment one by one by 3-phase plug, until electricity consumption is set
Standby every road power supply all acquires finish until；
Data connection terminal, for the secondary PT signals of individual event to be sent to background terminal；
The background terminal, for by power supply signal described in the secondary PT signals channeling of the individual event and being combined core
Phase, to judge power supply signal described in multichannel for phase or out-phase, wherein the combination nuclear phase is believed power supply described in every two-way
Three-phase electric signal in number respectively according toOperation is compared two-by-two after selecting the secondary PT signals of individual event, and the comparison is completed
Afterwards, it filters out with combined, is arranged by the same combined phase sequence for calculating analysis each two power supply signal filtered out, according to institute
The phase sequence for stating each two power supply signal arranges to judge that the power supply being connected with electrical equipment is positive phase sequence or negative phase sequence.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein after
Station terminal includes the module of issuing an order being sequentially connected, channel signal generation module and signal transmitting and receiving module；
Issue an order module, for generating acquisition signal after being connected to external trigger；
Channel signal generation module, for generating single-phase passage gating signal according to acquisition signal；
Signal emits and receiving module, and acquisition terminal is sent to for that will acquire signal and single-phase passage gating signal.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides second of first aspect
Possible embodiment, wherein acquisition terminal includes the channel execution module being sequentially connected, data acquisition module, A/D moduluss of conversion
Block and signal transmitting and receiving module；
Channel execution module, wherein a phase and electrical equipment for being connected to 3-phase plug according to single-phase passage gating signal
In single channel power supply signal between connection；
Data acquisition module, for acquiring the secondary PT analog signals of the corresponding individual event of single-phase passage gating signal；
A/D conversion modules generate the secondary PT signals of individual event for the secondary PT analog signals of individual event to be carried out A/D conversions；
Signal transmitting and receiving module, for the secondary PT signals of individual event to be sent to signal transmitting and receiving module.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein background terminal further includes the memory module being sequentially connected and central processing module；
Central processing module emits with signal to be connected with receiving module；
Signal emits and receiving module, is additionally operable to the secondary PT signals of individual event being transmitted to and deposits digital-to-analogue block；
Memory module, for storing the secondary PT signals of individual event, and, the secondary PT of collected three individual events of 3-phase plug is believed
Number according to three-phase electricity sequence composition power supply signal all the way, until channeling power supply signal；
The central processing module, for the three-phase electric signal in power supply signal described in every two-way respectively according toOperation
It is compared two-by-two after selecting the secondary PT signals of individual event, and, after the completion of the comparison, filter out with combined, by filtering out
It is same it is combined calculate analysis each two power supply signal phase sequence arrangement, according to the phase sequence of each two power supply signal arrange come
Judge that the power supply being connected with electrical equipment is positive phase sequence or negative phase sequence.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 4th kind of first aspect
Possible embodiment, wherein acquisition terminal further includes battery and electric power detection module；
Battery, for providing electricity for channel execution module, data acquisition module, A/D conversion modules and signal transmitting and receiving module
Energy；
Electric power detection module, the remaining capacity for acquiring battery, and, judging threshold value model of the remaining capacity beyond setting
Alarm is sent out after enclosing.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 5th kind of first aspect
Possible embodiment, wherein background terminal further includes supplying cell and battery capacity detection module；
Supplying cell, for emitting and receiving module, memory module for module of issuing an order, channel signal generation module, signal
Electricity supply is provided with central processing module；
Battery capacity detection module, the electricity for acquiring supplying cell, and, judging threshold value model of the electricity beyond setting
Alarm is sent out after enclosing.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 6th kind of second aspect
Possible embodiment, wherein central processing unit is additionally operable to, when power supply signal is less than two-way, generate waiting signal, and,
When the timing of waiting signal reaches given threshold, the result for combining nuclear phase is denoted as failure.
The third possible embodiment with reference to first aspect, an embodiment of the present invention provides the 7th kind of first aspect
Possible embodiment, wherein module of issuing an order, for sending synchronous nuclear phase commencing signal and synchronous nuclear phase knot to central processing unit
Beam signal；
Central processing unit, for being combined core to two-way power supply signal simultaneously after receiving synchronous nuclear phase commencing signal
Phase, and terminate to two-way power supply signal combination nuclear phase after receiving synchronous nuclear phase end signal, and, judge electric described in two-way
Source signal is positive phase sequence or negative phase sequence.
With reference to first aspect, an embodiment of the present invention provides the 8th kind of possible embodiments of first aspect, wherein number
2.4G wireless way for transmitting is used according to connection terminal.
Second aspect, an embodiment of the present invention provides secondary kernel phase systems, including：Power supply potential indicator and any of the above-described
The secondary phase checking device of item；
Power supply potential indicator with secondary phase checking device be connected by connector pin；
Secondary phase checking device, for introducing secondary power supply from power supply potential indicator.
Secondary phase checking device provided in an embodiment of the present invention and system, wherein the secondary phase checking device includes：Acquisition is eventually
End, data connection terminal and background terminal, the connection relation between above-mentioned all parts are：Acquisition terminal passes through data connection end
End is connected with background terminal, and acquisition terminal is used to acquire the secondary PT signals of individual event of electrical equipment one by one by 3-phase plug, directly
Until every road power supply of electrical equipment is all acquired and is finished, i.e., when the power supply that electrical equipment is connected has more than two-way, acquisition
Terminal can carry out nuclear phase operation one by one to every two-way power supply, to the safety of full-scope safeguards electrical equipment, data connection terminal
For the secondary PT signals of individual event to be sent to background terminal, background terminal is used to believe the secondary PT signals channeling power supply of individual event
Number and be combined nuclear phase, to judge that multiple power supplies signal is to judge two power supplys according to the same phase result with mutually or out-phase
It is positive phase sequence or negative phase sequence.Specifically, said combination nuclear phase be to the three-phase electric signal in every two-way power supply signal respectively by
According toOperation is compared two-by-two after selecting the secondary PT signals of individual event, all includes three single-phase electricities in the power supply of the roads Ji Mei, in order to complete
Face effectively carries out nuclear phase, need to three-phase electric signal respectively according toOperation is compared two-by-two after selecting the secondary PT signals of individual event
It is right, judge that the secondary PT signals of the individual event are same phase in above-mentioned two-way power supply when the result compared two-by-two is consistent, when comparing two-by-two
To result it is inconsistent when judge the secondary PT signals of the individual event in above-mentioned two-way power supply be out-phase.After the completion of above-mentioned comparison, sieve
Select with it is combined and calculate analysis each two power supply signal phase sequence arrangement, according to the phase sequence of each two power supply signal arrangement point
The phase sequence of analysis each two power supply signal recycles to judge that the power supply being connected with electrical equipment is positive phase sequence or negative phase sequence.Work as judgement
When this two-way power supply is positive phase sequence, you can it carries out turning to power for electrical equipment by this two-way power supply, by handling above, Neng Goufang
Whether the three-phase electric signal just efficiently compared out in multiple power supplys there is the problems such as negative phase sequence, to eliminate artificial core repeatedly
To complicated processes, it is convenient and efficient.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the connection figure for the secondary phase checking device that the embodiment of the present invention is provided；
Fig. 2 shows the structure connection figures for the secondary phase checking device that the embodiment of the present invention is provided；
Fig. 3 shows the structural framing figure for the secondary phase checking device that the embodiment of the present invention is provided；
Fig. 4 shows the structure connection figure for the secondary kernel phase system that the embodiment of the present invention is provided.
Icon：1- acquisition terminals；2- data connection terminals；3- background terminals；4- power supply potential indicators；Bis- nuclear phases of 5-
Device；The channels 11- execution module；12- data acquisition modules；13-A/D conversion modules；14- signal transmitting and receiving modules；31- issues an order mould
Block；32- channel signal generation modules；33- signals emit and receiving module；34- central processing modules；35- memory modules.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
In power cable line, the problems such as due to Electrical Safety, nuclear phase work is opened usually in the form of secondary nuclear phase
Exhibition.Secondary nuclear phase is to be turned a signal of high voltage using voltage transformer (Potential Transformer, abbreviation PT)
After being changed to the secondary singal of low pressure, nuclear phase is carried out to secondary singal, is a kind of indirect nuclear phase.In implementation process, operation power
Staff mainly carries out secondary nuclear phase using common single-phase phasing tester to electrical equipments such as ring main units, since synchronization is only
A phase can be checked, therefore, each phase in three-phase electricity is required for being checked with offside three-phase, needs verification 9 times in total, in this way
The time spent in when operation, is relatively long, step is more, manual operation is inconvenient, also, is easy error.
Based on this, an embodiment of the present invention provides secondary phase checking device and systems, are described below by embodiment.
Embodiment 1
Referring to Fig. 1, Fig. 2 and Fig. 3, the secondary phase checking device that the present embodiment proposes specifically includes：Acquisition terminal 1, data connect
Terminal 2 and background terminal 3 are connect, also, acquisition terminal is connected by data connection terminal with background terminal.
During the work time, acquisition terminal is used to acquire the secondary PT letters of individual event of electrical equipment one by one by 3-phase plug
Number, it needs to illustrate, PT secondary voltage circuits are connected with circuit secondary device, when it is implemented, bis- electricity of PT
It pushes back road with the circuits PT of the potential indicator in distribution box inner cable terminals to be connected, also, general potential indicator only refers to
Show the power supply signal of cable run all the way.The secondary PT signals of individual event in PT secondary voltage circuits are usually between 5V to 9V.
When the voltage that electrical equipment is connected has at least two-way, above-mentioned at least two-way power supply needs first to compare whether phase sequence recycles one
It causes, can be just that the same electrical equipment be powered when only its phase sequence cycle is consistent, otherwise will appear with electric fault, at this
In embodiment, acquisition terminal substitutes the unidirectional plug in traditional phase checking device with 3-phase plug, is distinguished by 3-phase plug
Acquisition per road power supply in the secondary PT signals, that is, three-phase electric signal of individual event in a phase, also, above process cycle carry out until
The roads electrical equipment Zhong Mei power supply all acquires finish until.
When it is implemented, when power supply more than tri- tunnels Yi You needs nuclear phase, ordinary circumstance acquisition terminal cannot acquire simultaneously
Three power supply signals need to replace position to complete three power supply nuclear phases by one in two acquisition terminals.For example, circuit one is
It is main for circuit, circuit two, circuit three are extension wire, and the acquisition terminal on circuit one is motionless, will be inserted in the acquisition on circuit two
Terminal replaces the nuclear phase to completion circuit one and circuit three on the potential indicator of three power supply of circuit.Certainly eventually by three acquisitions
It is also the nuclear phase that can complete three power supplys that end is connected with circuit one, two, three respectively.
Data connection terminal is used to the secondary PT signals of individual event being sent to background terminal, needs exist for illustrating,
Data connection terminal uses 2.4G wireless way for transmitting, 2.4G wireless modes that can realize booting automatic frequency sweep function, share
50 working channels can be worked at the same time for 50 users in same occasion simultaneously, without using person's manual coordination, match confidence
Road.Traditional process connected with conducting wire is eliminated by above-mentioned data connection terminal transmission, it is convenient and efficient, it is safe.
Background terminal is used for the secondary PT signals channeling power supply signal of individual event and is combined nuclear phase, then, analysis
The phase sequence for going out power supply signal arranges and the similarities and differences of two-way power supply signal phase sequence cycle, according to the sequence of three-phase electricity in the power supply of the roads Ji Mei
The secondary PT signals of three individual events are formed power supply signal by (phase differs 120 degree two-by-two), to judge multiple power supplies signal for same phase
Or out-phase, need to illustrate, said combination nuclear phase be to the three-phase electric signal in every two-way power supply signal respectively by
According to C31Operation is compared two-by-two after selecting the secondary PT signals of individual event, for example, being selected in the three-way power signal of electrical equipment
Two-way power supply signal, the three-phase electric signal in first via power supply signal are respectively the secondary PT signals a of individual event, the secondary PT letters of individual event
Number b and secondary PT signals c of individual event, three-phase electric signal is respectively the secondary PT signals A of individual event, individual event two in the second road power supply signal
The secondary PT signals B and secondary PT signals C of individual event, then by the three-phase electric signal in every two-way power supply signal respectively according to C31Operation is selected
Go out after the secondary PT signals of individual event and is compared totally 9 comparisons that carry out aA, aB, aC, bA, bB, bC, cA, cB and cC two-by-two, than
To all results have and only there are three be same phase, also, by three interpretations of result with phase go out two-way power phase arrangement, such as
Fruit two-way power phase cycle consistent (for example, aB, bC, cA, and being not necessarily intended to Seeking Truth aA, bB, cC) judges that above-mentioned two-way is electric
Source signal can be that the electrical equipment carries out turning power supply in a certain range；If two-way power phase cycle difference judges above-mentioned
Two-way power supply signal cannot be that the electrical equipment carries out turning power supply.It should be added that aA, aB, aC, bA, bB, bC, cA,
The comparison of cB and cC successively can artificially be changed according to usage scenario.
In addition, it is necessary to supplementary explanation, due to the requirement of power supply quality difference in production and living.When to have a power failure down
When lock operates, as long as meeting, two-way power phase cycle is consistent operable, at this time circuit and the phase sequence cycle one for having a power failure front and back
It causes, then the front and back magnetic field that has a power failure is also consistent, is not in phenomena such as machine inverts.When for do not have a power failure cyclization grid switching operation when,
When signal is abc and ABC, often one-to-one correspondence mutually must assure that, that is, be necessary for aA, bB, cC, it is no aB, the phase sequence of bC, cA occur
When loop direction is consistent, phase fault is will appear once cyclization grid switching operation, seriously endangers equipment and personal safety.
Above-mentioned module is described in detail below, background terminal includes issue an order module 31, the channel signal being sequentially connected
Generation module 32 and signal transmitting and receiving module 33, in use, module of issuing an order after being connected to external trigger for generating acquisition
Signal, module of issuing an order may be configured as starting key, and acquisition signal is generated when above-mentioned starting key is clicked or rotates with logical
Know that acquisition terminal starts to acquire, later, channel signal generation module is used to generate single-phase passage gating signal according to acquisition signal,
Determine this secondary acquisition by single-phase passage gating signal is which signal in which power supply, later, signal transmitting
It with receiving module is used to that signal will to be acquired and single-phase passage gating signal is sent to acquisition terminal, so that acquisition terminal is according to rear
" order " of station terminal goes to acquire corresponding signal.
Above-mentioned acquisition terminal includes the channel execution module 11 being sequentially connected, data acquisition module 12, A/D conversion modules 13
With signal transmitting and receiving module 14, in specific gatherer process, channel execution module is used to be connected to three according to single-phase passage gating signal
The connection between single channel power supply signal in the wherein phase and electrical equipment of phase plug, in general, being set in 3-phase plug and electricity consumption
It is all in series with protection fuse (alternatively, relay, switch etc.) between standby every road power supply, also, protects fuse in gathered data
It is in the state disconnected before；When the secondary PT signals of acquisition individual event, wherein the one of 3-phase plug is connected to by channel execution module
The mutually connection between the single channel power supply signal in electrical equipment.Later, data acquisition module is used for acquiring single-phase passage gating
The secondary PT analog signals of the corresponding individual event of signal, for the ease of being handled, A/D conversion modules are believed with by the secondary PT simulations of individual event
Number carry out A/D conversions, generate the secondary PT signals of individual event, in this way, signal transmitting and receiving module be used for the secondary PT signals of individual event are sent to
Signal emits and receiving module, to carry out subsequent processing.
Above-mentioned background terminal further includes the memory module 35 being sequentially connected and central processing module 34, also, central processing
Module emits with signal to be connected with receiving module.In use, signal transmitting is additionally operable to receiving module by the secondary PT signals of individual event
It is transmitted to memory module, the secondary PT signal transmissions of individual event that acquisition terminal is fed back temporarily are stored to memory module.It
Afterwards, memory module is used for storing the secondary PT signals of individual event, also, the collected secondary PT signals of three individual events of 3-phase plug are pressed
The sequence (signal in i.e. every power supply all the way between each picture differs 120 degree) for taking three-phase electricity forms power supply signal all the way, until
It until channeling power supply signal, needs to illustrate, the quantity of multiple power supplies signal is connected so that electrical equipment is practical
Subject to the number of power supply.Central processing module be used for the three-phase electric signal in every two-way power supply signal respectively according toOperation is selected
It is compared two-by-two after going out the secondary PT signals of individual event, also, judges power supply signal for positive phase sequence or inverse according to the result of multiplication
Xiang Xiang.It needs to illustrate herein, for example, when there are when three-way power signal in electrical equipment, it is assumed that first via power supply
Three-phase electric signal in signal is respectively the secondary PT signals a of individual event, the secondary PT signals b of individual event and the secondary PT signals c of individual event,
Three-phase electric signal is respectively the secondary PT signals A of individual event, the secondary PT signals B of individual event and the secondary PT signals of individual event in two road power supply signals
C, the three-phase electric signal in the power supply signal of third road is respectively the secondary PT signals X of individual event, and the secondary PT signals Y of individual event and individual event are secondary
PT signals Z.When execution, first by the three-phase electric signal in the first via and this two-way power supply signal of the second road respectively according toOperation is selected
Go out after the secondary PT signals of individual event and compared totally 9 comparisons that carry out aA, aB, aC, bA, bB, bC, cA, cB and cC two-by-two, such as
The result that fruit compares has and only there are three with combined, and, according to three each two power supply signal is obtained with combined analysis
Phase sequence arranges and judges whether phase sequence cycle is consistent.Then, by the three-phase electricity in the first via and this two-way power supply signal of third road
Signal respectively according toOperation select compared two-by-two after the secondary PT signals of individual event carry out aX, aY, aZ, bX, bY, bZ, cX,
CY and cZ totally 9 comparisons, if the result compared has and only there are three with combined, and, according to three with combined analysis
Show that the phase sequence of each two power supply signal arranges and judges that phase sequence cycle is no consistent, if judged all as phase according to the result of comparison
Sequence cycle is consistent to judge that above-mentioned three-way power signal can be that the electrical equipment carries out turning power supply in a certain range；If above-mentioned two
The result wherein once or twice of secondary comparison be phase sequence cycle it is inconsistent judge in above-mentioned three-way power signal it is electric all the way
Source or two-way power supply cannot be that the electrical equipment carries out turning power supply.
Further, since acquisition terminal needs can just work in the case where there is electricity, acquisition terminal further includes battery and electricity
Detection module is measured, in general, above-mentioned battery is button cell, small, capacity is big, easy to use, above-mentioned battery is for being logical
Road execution module, data acquisition module, A/D conversion modules and signal transmitting and receiving module provide electric energy, to ensure above-mentioned each function
Module works normally, and electric power detection module is used to acquire the remaining capacity of battery, also, is judging remaining capacity beyond setting
Alarm (for example, the sound and light etc.) is sent out after threshold range, and battery etc. is replaced to inform relevant administrative staff in time.
In another embodiment, the remaining capacity of the collected battery of electric power detection module can transmit to background terminal into
Row display.Specific display location and display format can flexibly be shown according to the concrete condition of background terminal.Also, in order to
Whether the transmission channel effectively between judgement acquisition terminal, data connection terminal and background terminal is normal, can be first with acquisition eventually
Electric power detection module in end is shown to detect the remaining capacity of battery and send background terminal to, if background terminal energy
Normal display then illustrates that the transmission channel transmission between acquisition terminal, data connection terminal and background terminal is normal；If backstage
Terminal cannot normally be shown, then illustrate the transmission channel transmission abnormality between acquisition terminal, data connection terminal and background terminal,
As it can be seen that the test method simple and effective.
Further, since background terminal needs can just work in the case where there is electricity, background terminal further includes supplying cell
With battery capacity detection module, in use, supplying cell be used for for issue an order module, channel signal generation module, signal transmitting with
Receiving module, memory module and central processing module provide electricity supply, and battery capacity detection module is for acquiring supplying cell
Electricity, to ensure that above-mentioned each function module works normally, also, sent out after judging electricity beyond the threshold range set
It alarms (for example, the sound and light etc.), supplying cell etc. is replaced to inform relevant administrative staff in time.It needs to illustrate
, the threshold range of above-mentioned setting according to circumstances can flexibly be set.
In addition, in order to keep said combination nuclear phase process effective, central processing unit is additionally operable to when power supply signal is less than two-way
Waiting signal is generated, central processing unit caused by effectively prevent when the power supply signal being connected with electrical equipment only has all the way
Consumption.Also, central processing unit is additionally operable to when the timing of waiting signal reaches given threshold, and the result for combining nuclear phase is remembered
Work fails.It needs to illustrate, the given threshold of waiting signal timing is usually an empirical value, to avoid central processing
Device such as falls into a long wait and occurs crashing at the appearance of states, is conducive to protect central processing unit.
Also, the secondary PT signals of each individual event in order to completely compare two-way power supply, module of issuing an order are used in
Central processor sends synchronous nuclear phase commencing signal and synchronous nuclear phase end signal, in this way, when work, central processing unit is for connecing
Nuclear phase is combined to two-way power supply signal simultaneously after receiving synchronous nuclear phase commencing signal, and is terminated receiving synchronous nuclear phase
Terminate to combine nuclear phase to two-way power supply signal after signal, the individual event that central processing unit is checked is effectively prevented by above-mentioned processing
The secondary incomplete phenomenon of PT signals occurs, convenient and efficient.
In conclusion secondary phase checking device provided in this embodiment includes：Acquisition terminal, data connection terminal and backstage are eventually
End, above-mentioned acquisition terminal are connected by data connection terminal with background terminal, in use, acquisition terminal is used for passing through 3-phase plug
The secondary PT signals of individual event for acquiring electrical equipment one by one, until every road power supply of electrical equipment, which all acquires, to be finished, data connect
Terminal is connect for the secondary PT signals of individual event to be sent to background terminal, background terminal is used for the secondary PT signals channeling of individual event
Power supply signal is simultaneously combined nuclear phase, to judge multiple power supplies signal for phase or out-phase, it should be noted that combination nuclear phase
Be to the three-phase electric signal in every two-way power supply signal respectively according toOperation is compared two-by-two after selecting the secondary PT signals of individual event
It is right, then according to three compared out with mutually as a result, whether the phase sequence cycle for analyzing each two power supply signal is consistent.In order to
Comprehensively and effectively carry out nuclear phase, need to three-phase electric signal respectively according toOperation carries out two-by-two after selecting the secondary PT signals of individual event
It compares, and, according to same phase as a result, whether the phase sequence cycle for analyzing each two power supply signal is consistent.When in first via power supply
Three-phase phase-sequence cycle with the second road power supply in three-phase phase-sequence cycle it is consistent when, judge that this two-way power supply is positive phase sequence, you can
It carries out turning to power for electrical equipment in a certain range by this two-way power supply, compared with prior art, eliminates and manually crosscheck
With the process of test, the result of nuclear phase conveniently can be accurately obtained.
Embodiment 2
Referring to Fig. 4, present embodiments providing secondary kernel phase system includes：Power supply potential indicator 4 and any of the above-described
Secondary phase checking device 5, above-mentioned power supply potential indicator with secondary phase checking device be connected by connector pin, when in use, two
Secondary phase checking device is used for introducing secondary power supply from power supply potential indicator by connector pin, the electricity of usual above-mentioned secondary power supply
Pressure is 5V to 9V, safely and effectively.
In conclusion secondary kernel phase system provided in this embodiment includes：Power supply potential indicator and any of the above-described
Secondary phase checking device, also, power supply potential indicator with secondary phase checking device be connected by connector pin, in this way, secondary core
Phase device is used for introducing secondary power supply from power supply potential indicator, passes through matching for power supply potential indicator and secondary phase checking device
It closes and uses, can ensure that nuclear phase work safety effectively carries out.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can refer to previous embodiment in corresponding process, details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.To those skilled in the art, it can understand above-mentioned term in the present invention with concrete condition
Concrete meaning.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. two phase checking devices, which is characterized in that including：Acquisition terminal, data connection terminal and background terminal；
The acquisition terminal is connected by the data connection terminal with the background terminal；
The acquisition terminal, the secondary PT signals of individual event for acquiring electrical equipment one by one by 3-phase plug, until electricity consumption is set
Standby every road power supply all acquires finish until；
The data connection terminal, for the secondary PT signals of the individual event to be sent to the background terminal；
The background terminal, for by power supply signal described in the secondary PT signals channeling of the individual event and being combined nuclear phase,
To judge power supply signal described in multichannel for phase or out-phase, wherein the combination nuclear phase is to power supply signal described in every two-way
In three-phase electric signal respectively according to C31 operation is compared two-by-two after selecting the secondary PT signals of individual event, after the completion of the comparison,
It filters out with combined, is arranged by the same combined phase sequence for calculating analysis each two power supply signal filtered out, according to described
The phase sequence of each two power supply signal arranges to judge that the power supply being connected with electrical equipment is positive phase sequence or negative phase sequence.
2. secondary phase checking device according to claim 1, which is characterized in that the background terminal includes the hair being sequentially connected
Enable module, channel signal generation module and signal transmitting and receiving module；
The module of issuing an order, for generating acquisition signal after being connected to external trigger；
The channel signal generation module, for generating single-phase passage gating signal according to the acquisition signal；
The signal transmitting and receiving module, for the acquisition signal and the single-phase passage gating signal to be sent to institute
State acquisition terminal.
3. secondary phase checking device according to claim 2, which is characterized in that the acquisition terminal include be sequentially connected it is logical
Road execution module, data acquisition module, A/D conversion modules and signal transmitting and receiving module；
The channel execution module, for be connected to according to the single-phase passage gating signal the wherein phase of the 3-phase plug with
Connection between power supply signal described in single channel in electrical equipment；
The data acquisition module, for acquiring the secondary PT analog signals of the corresponding individual event of the single-phase passage gating signal；
It is secondary to generate the individual event for the secondary PT analog signals of the individual event to be carried out A/D conversions for the A/D conversion modules
PT signals；
The signal transmitting and receiving module, for the secondary PT signals of the individual event to be sent to the signal transmitting and receiving module.
4. secondary phase checking device according to claim 2, which is characterized in that the background terminal further includes being sequentially connected
Memory module and central processing module；
The central processing module emits with the signal to be connected with receiving module；
The signal transmitting and receiving module, are additionally operable to the secondary PT signals of the individual event being transmitted to the memory module；
The memory module, for storing the secondary PT signals of the individual event, and, described in collected three of the 3-phase plug
According to the sequence composition power supply signal all the way of three-phase electricity, the power supply signal described in the channeling is the secondary PT signals of individual event
Only；
The central processing module is used for the three-phase electric signal in power supply signal described in every two-way respectively according to C31 operation is selected
It is compared two-by-two after the secondary PT signals of individual event, and, after the completion of the comparison, filter out with combined, it is same by what is filtered out
The combined phase sequence arrangement for calculating analysis each two power supply signal, arranges according to the phase sequence of each two power supply signal to judge
The power supply being connected with electrical equipment is positive phase sequence or negative phase sequence.
5. secondary phase checking device according to claim 3, which is characterized in that the acquisition terminal further includes battery and electricity
Detection module；
The battery, for being the channel execution module, the data acquisition module, the A/D conversion modules and the letter
Number transceiver module provides electric energy；
The electric power detection module, the remaining capacity for acquiring the battery, and, judging the remaining capacity beyond setting
Threshold range after send out alarm.
6. secondary phase checking device according to claim 4, which is characterized in that the background terminal further include supplying cell and
Battery capacity detection module；
The supplying cell for module of issuing an order for described in, the channel signal generation module, signal transmitting and receives mould
Block, the memory module and the central processing module provide electricity supply；
The battery capacity detection module, the electricity for acquiring the supplying cell, and, judging the electricity beyond setting
Threshold range after send out alarm.
7. secondary phase checking device according to claim 4, which is characterized in that the central processing unit is additionally operable to described
When power supply signal is less than two-way, waiting signal is generated, and, it, will be described when the timing of the waiting signal reaches given threshold
The result of combination nuclear phase is denoted as failure.
8. secondary phase checking device according to claim 4, which is characterized in that the module of issuing an order is used for the center
Processor sends synchronous nuclear phase commencing signal and synchronous nuclear phase end signal；
The central processing unit, for after receiving the synchronous nuclear phase commencing signal simultaneously to power supply signal described in two-way into
Row combination nuclear phase, and terminate to power supply signal combination nuclear phase described in two-way after receiving the synchronous nuclear phase end signal,
And judge that power supply signal described in two-way is positive phase sequence or negative phase sequence.
9. secondary phase checking device according to claim 1, which is characterized in that the data connection terminal is wireless using 2.4G
Mode is transmitted.
10. two kernel phase systems, which is characterized in that including：Power supply potential indicator and such as claim 1-9 any one of them
Secondary phase checking device；
The power supply potential indicator is connected with the secondary phase checking device by connector pin；
The secondary phase checking device, for introducing secondary power supply from the power supply potential indicator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419092.5A CN108333441A (en) | 2018-05-03 | 2018-05-03 | Secondary phase checking device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810419092.5A CN108333441A (en) | 2018-05-03 | 2018-05-03 | Secondary phase checking device and system |
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|---|---|
| CN108333441A true CN108333441A (en) | 2018-07-27 |
Family
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|---|---|---|---|
| CN201810419092.5A Pending CN108333441A (en) | 2018-05-03 | 2018-05-03 | Secondary phase checking device and system |
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