CN209198555U

CN209198555U - Platform area phase identification instrument

Info

Publication number: CN209198555U
Application number: CN201821973323.9U
Authority: CN
Inventors: 高兴福; 许金岳; 王善卫; 王坤; 许梓宁; 高英博; 王绍轩
Original assignee: Shandong Dianwei Intelligent Technology Co Ltd
Current assignee: Shandong Dianwei Intelligent Technology Co Ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2019-08-02
Anticipated expiration: 2028-11-27

Abstract

The utility model relates to low-voltage distribution technical fields, more particularly to a kind of area's phase identification instrument, including host and extension set, the host is mounted on the three-phase and four-line end of platform area inducer for line outlet end of transformer or known three-phase phase, A, B, C three-phase firewire and zero curve of host respectively with the three-phase phase line at the three-phase and four-line end of platform area inducer for line outlet end of transformer or known three-phase phase and zero curve is corresponding connects, the extension set be mounted on user's electricity box end or to identify phase distribution terminal or single-phase electricity consumption end, connect with the phase line of phase to be measured and zero curve；The utility model has the characteristics that strong antijamming capability, filter function are powerful, recognizer is fast and accurate, provides convenience condition for transformation, the installation of next step low-voltage three-phase load imbalance adjustment.

Description

Platform area phase identification instrument

Technical field

The utility model relates to low-voltage distribution technical fields, and in particular to a kind of area's phase identification instrument.

Background technique

With the development of national economy and the raising of living standards of the people, household electrical appliance are more and more, and individual is industrial and commercial Industry emerges in multitude, and very big non-equilibrium state occur in rural area and residential area power load, and especially certain phase single-phase load becomes larger, Partially mutually serious, so that user's terminal voltage is seriously unqualified, and line loss increases, or even burns route, causes fire, greatly The safety of life and property of the people is compromised, therefore load adjustment and transformation are extremely urgent.

The adjustment of so-called line load, i.e., on a part of load adjustment on the high route of load to the low route of load, So that customer charge is at equilibrium.Do not consider but due to historical reasons, when being routed at that time comprehensively, user end A, B, C tri- Phase phase is hard to tell, and electrician is also which mutually conveniently connects which phase, especially old residential area when beginning, and route is more random, so that phase Identification is difficult, and then is difficult to adjust, but must Adjustment and reform.It now can be in the instrument of user terminal identification phase there is an urgent need to one Device.

Utility model content

In order to solve the above-mentioned technical problem the deficiency in, the purpose of this utility model is that: a kind of area's phase is provided and is known Other instrument, can automatic identification A, B, C three-phase, according to customer charge size, adjustment distribution A, B, C three-phase can reduce line loss, mention High voltage qualification rate.

The technical scheme adopted by the utility model for solving the technical problem is:

Described area's phase identification instrument, including host and extension set, the host are mounted on platform area inducer for line outlet end of transformer or Know the three-phase and four-line end of three-phase phase, A, B, C three-phase firewire and zero curve of host respectively with platform area inducer for line outlet end of transformer or known Three-phase phase line and the zero curve correspondence at the three-phase and four-line end of three-phase phase connect, and the extension set is mounted on user's electricity box end or to identify The distribution terminal of phase or single-phase electricity consumption end, connect with the phase line of phase to be measured and zero curve, the host and extension set respectively include:

Central processing unit: the control centre of equipment completes the data acquisition and control of all units；

Display unit: real time digital is shown or indicator light indicating equipment is current working condition, test result information；

Power supply power supply unit: the corresponding voltage of generation is powered to whole equipment；

GPS clock synchronization unit: real-time synchronization GPS satellite, in central processing unit real-time tracking GPS clock synchronization unit Disconnected whole moment second, and update whole time second base；

Phase generates unit: realizing the real-time monitoring to three-phase voltage rising edge；

GSM message communication unit: it realizes the communication of host and extension set, establishes information mutual communication.

Further preferably, central processing unit uses STM32F103C8T6 chip, and central processing unit passes through serial port RX3 and TX3 mouthfuls connects with GSM message communication unit, and central processing unit is by START pin to GSM message communication unit electricity Source control；Central processing unit is mutual by 3 pins of PULSEA, PULSEB, PULSEC and phase generation unit progress information Connection；Central processing unit is connected by serial port RX2 and TX2 with GPS clock synchronization unit.

Further preferably, central processing unit is connected by PPS pin with GPS clock synchronization unit.

Further preferably, A, B, C three-phase firewire of host and zero curve are clipped in three-phase phase line and zero curve with crocodile clip.

Further preferably, there are two test pencil and crocodile clips for configuration on extension set.

Compared with prior art, the utility model has the following beneficial effects:

The utility model has the characteristics that strong antijamming capability, filter function are powerful, recognizer is fast and accurate, is next Transformation, the installation of step low-voltage three-phase load imbalance adjustment are provided convenience condition.Specifically there is following several respects feature:

1, numeral method is intuitive, makes one very clear.

2, indicator light indicating operating status, convenient for observation.

3, host uses the wiring of crocodile clip, and extension set uses test pencil formula, is convenient for in-site measurement.

4, Measurement Algorithm considers comprehensively, so that identifying, speed is fast, and accuracy is high, simple and reliable, can accurately tell and be surveyed The phase relation of route and standard point route.

5, host is mounted on platform area, and extension set can careless traverse measurement.

6, using the wireless communication module of high reliability, long transmission distance, in the case where blocking, 1.5 public affairs can be transmitted In more than, guarantee all standing of platform region measurement point.

7, hand-held outer case, human oriented design is small in size, light-weight, convenient for carrying.

8, plastic shell, good insulation preformance guarantee the personal safety of gauger.

Detailed description of the invention

Fig. 1 the block diagram of the utility model；

Fig. 2 the utility model central processing unit schematic diagram；

Fig. 3 the utility model GPS clock synchronization unit schematic diagram；

Fig. 4 the utility model phase generates unit schematic diagram；

Fig. 5 the utility model power supply power supply unit schematic diagram；

Fig. 6 the utility model GSM message communication unit schematic diagram；

Fig. 7 the utility model display unit schematic diagram.

Specific embodiment

The utility model embodiment is described further with reference to the accompanying drawing:

Embodiment 1

As shown in figs. 1-7, described in the utility model area's phase identification instrument, including host and extension set, the host installation At the three-phase and four-line end of platform area inducer for line outlet end of transformer or known three-phase phase, A, B, C three-phase firewire and zero curve of host respectively with Three-phase phase line and the zero curve correspondence at the three-phase and four-line end of platform area inducer for line outlet end of transformer or known three-phase phase connect, the extension set peace Mounted in user's electricity box end or to identify phase distribution terminal or single-phase electricity consumption end, connect with the phase line of phase to be measured and zero curve, The host and extension set respectively include:

Central processing unit: the control centre of equipment completes the data acquisition and control of all units, central processing unit Using STM32F103C8T6 chip；

Display unit: real time digital is shown or indicator light indicating equipment is current working condition, test result information；Tool Body, after host powers on, numeral method: AbCn indicates that measurement line yellow line must connect in the A phase of three-phase four-wire system, green line It must connect in the B phase of three-phase four-wire system, red line must connect in the C phase of three-phase four-wire system, and black line must connect in three-phase and four-line On the zero curve of system.Note: measurement line is unable to wrong, otherwise causes measuring error or burns instrument power source！It is digital after wiring is normal Pipe is shown: AbCn, if which does not mutually connect or contact bad, corresponding phase show: _, after several seconds, charactron is shown Show _ _ _ n, alerted, indicates that phase line does not connect, at this moment should check wiring, it is to note that host triple line must be connected all It can work normally！

After extension set powers on, numeral method: --- n indicates that black test pencil connects on zero curve, and red test pencil connects in measurement phase On line.Note: two lines cannot be reversed, does not otherwise measure not Chu Lai phase, and charactron is shown always: --- n.Complete indicator light quick flashing Afterwards, extension set numeral method: AAAn indicates that surveyed phase line is A phase；Extension set numeral method: bbbn indicates that surveyed phase line is B Phase；Extension set numeral method: CCCn indicates that surveyed phase line is C phase.If synchro light flashes, indicator light is communicated every 5 seconds Flashing is primary, and charactron is shown always --- and n indicates that red test pencil and black test pencil are reversed, re-measures in turn.

In addition, also having indicator light display unit, there are five indicator light on instrument display panel, each indicator light is represented not With meaning, after only host and extension set synchro light all flashs, expression host and extension set have been synchronized, at this moment just can be with It measures.

Power supply power supply unit: 5V the and 3.3V voltage of generation is powered to whole equipment；5V mainly gives GSM message communication unit Power supply；Terminal J1 powers outward.

GPS clock synchronization unit: real-time synchronization GPS satellite, central processing unit are synchronous with GPS clock by PPS pin Unit connects, whole moment second that central processing unit real-time tracking GPS clock synchronization unit PPS pin interrupts, and updates the whole second Time base.Central processing unit is connected by serial port RX2 and TX2 with GPS clock synchronization unit, is communicated.

Phase generates unit: the real-time monitoring to three-phase voltage rising edge is realized, specifically, central processing unit passes through 3 pins of PULSEA, PULSEB, PULSEC and phase generate unit and carry out information interconnection, and the moment monitors phase and generates unit The failing edge of 3 pins of PULSEA, PULSEB, PULSEC causes central processing unit corresponding pin to interrupt, and CPU will be in 3 The time base of whole second synchronous with GPS satellite at disconnected moment makes the difference, and this 3 time differences are stored, and here it is host notes The A of record, B, the time difference of the time base of C three-phase electricity next whole second synchronous with GPS satellite.

Principle is: rising edge causes central processing unit to be interrupted, by the interference waveforms such as harmonic wave processing after, be confirmed as be When the rising edge of three-phase electricity, the time point of each interruption is recorded at this time, this time point will monitor with GPS clock synchronization unit To the time base of whole second make the difference；Then this difference is stored.This is the work that host is completed.Host is this time Difference is sent to extension set by GSM message communication unit.

Also the rising edge of the introduced single-phase electricity of real-time monitoring oneself and GPS clock synchronization unit monitor extension set The time base of whole second make the difference, be compared and check after receiving the time difference of the three-phase electricity of host, compare it is consistent, i.e., Illustrate that the phase that extension set is monitored is corresponding with which, while this result is then sent to host, oneself display is surveyed The result of examination.

GSM message communication unit: it realizes the communication of host and extension set, establishes information mutual communication；Information includes 3 phases of host Time difference, whether successfully etc. whether extension set detect success, main, extension set communication information.Central processing unit passes through serial port RX3 Connect with TX3 mouthfuls with GSM message communication unit, by pin RX3, TX3 control GSM message communication unit module receive and dispatch short Letter operation.Central processing unit controls GSM message communication unit power supply by START pin.Realize that the hardware of gsm module is multiple Position and restart function.

A, B, C three-phase firewire and zero curve of host are clipped in three-phase phase line and zero curve with crocodile clip (is ordinarily connected to breaker Output terminal on).

There are two test pencil and crocodile clips for configuration on extension set, and first zero curve test pencil can be clipped on zero curve with crocodile collet, Then the phase line to be measured is contacted with phase line test pencil.

The top left of host and extension set is GPS satellite antenna, and the right is radio antenna.

Phase generates unit realization to the real-time monitoring of three-phase voltage rising edge.

Working principle of the utility model is:

Host real-time detection accesses the phase forward position of three-phase electricity, according to GPS satellite clock by three-phase phase forward position and whole second Satellite time made the difference, and recorded respectively, time differences of three phases be sent to point by GSM message communication unit Machine；It the time difference of the whole second in the forward position and GPS satellite clock of the accessed single-phase electricity of extension set real-time detection, is sent according to host The time difference of 3 phases, the phase for which phase for judging that phase detected by current extension set belongs to host is carried out, extension set is shown Host is fed back to while current phase in time and has been detected by phase.

Claims

1. a kind of area's phase identification instrument, which is characterized in that including host and extension set, the host is mounted on platform area transformer and goes out The three-phase and four-line end of line end or known three-phase phase, A, B, C three-phase firewire and zero curve of host respectively with the transformer outlet of platform area Three-phase phase line and the zero curve correspondence at end or the three-phase and four-line end of known three-phase phase connect, and the extension set is mounted on user's electricity box end To identify phase distribution terminal or single-phase electricity consumption end, connect with the phase line of phase to be measured and zero curve, the host and extension set Respectively include:

GPS clock synchronization unit: real-time synchronization GPS satellite, what central processing unit real-time tracking GPS clock synchronization unit was interrupted Whole moment second, and update whole time second base；

2. according to claim 1 area's phase identification instrument, which is characterized in that central processing unit uses STM32F103C8T6 chip, central processing unit are connected by RX3 and TX3 mouthfuls of serial port with GSM message communication unit, center Processing unit controls GSM message communication unit power supply by START pin；Central processing unit by PULSEA, PULSEB, 3 pins of PULSEC and phase generate unit and carry out information interconnection；Central processing unit passes through serial port RX2 and TX2 and GPS Clock synchronization unit connects.

3. according to claim 2 area's phase identification instrument, which is characterized in that central processing unit by PPS pin with GPS clock synchronization unit connects.

4. according to claim 1 area's phase identification instrument, which is characterized in that A, B, C three-phase firewire and zero curve of host It is clipped in three-phase phase line and zero curve with crocodile clip.

5. according to claim 1 area's phase identification instrument, which is characterized in that there are two test pencil and crocodiles for configuration on extension set Fish folder.