CN106896278B - A kind of intelligence phase sequence identification device - Google Patents
A kind of intelligence phase sequence identification device Download PDFInfo
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- CN106896278B CN106896278B CN201710288977.1A CN201710288977A CN106896278B CN 106896278 B CN106896278 B CN 106896278B CN 201710288977 A CN201710288977 A CN 201710288977A CN 106896278 B CN106896278 B CN 106896278B
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- phase
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- sequence identification
- phase sequence
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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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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention provides a kind of intelligent phase sequence identification devices, power circuit including three-phase five-wire mode, it further include the phase option circuit being electrically connected with power circuit and phase sequence identification circuit, it include Selecting phasing switch and industrial connector in phase option circuit, any one phase line suitching type is electrically connected in the incoming end of the Selecting phasing switch and three phase lines of power circuit, end is picked out to be electrically connected with industrial connector, the zero curve and ground line of industrial connector and power circuit are electrically connected, it include detection module in phase sequence identification circuit, two ports of detection module are electrically connected with two phase lines in power circuit, also it is electrically connected with the zero curve in power circuit, another port is electrically connected with the end that picks out that Selecting phasing switchs;The present invention is connected respectively in distribution line using four ports on detection module, judges that single-phase load uses that phase electric by the voltage value between different port, so that intelligent recognition loads used phase sequence, has the advantages that accurately and efficiently.
Description
Technical field
The present invention relates to field of transmission equipment, and in particular to a kind of can be single load intelligent recognition of access three-phase circuit
The device of its electricity consumption phase sequence.
Background technique
Distribution line is the important component being powered to electrical equipment, guarantees distribution line in three-phrase burden balance
In the state of stable operation help to improve circuit power supply reliability, running efficiency of system and terminal power quality.However
In distribution line, power consumer is mostly that single-phase load is either single-phase mixed with three-phase load, when the size and electricity consumption of load
Between it is uncontrollable, and since distribution line low-voltage circuit is longer, the use of these loads necessarily will cause distribution line three-phase
The appearance of load unbalanced phenomenon generates out-of-balance current, finally to keep three-phase current not identical on the distribution line neutral conductor
Distribution line loss is caused to increase, distribution transformer practical power output reduction can also be because phase uncompensated load is excessive makes for certain when serious
It blown at phase line, switch and burn out even load equipment the phenomenon that damaging.Therefore, in process of distributing electricity to the electric current of route not
The degree of balance has strict requirements.
But with the development of modern industry, novel bus slot type distribution method gradually matching instead of large-scale cable type
Method for electrically can be convenient efficiently extracted current by bus slot type distribution method, convenient for the replacement and adjusting of equipment, but this
Also the problem of bringing three-phrase burden balance in process of distributing electricity, original designed balanced circuit may cause after replacement load
The problem of new three-phase load unbalance, it is therefore desirable to which the phase sequence loaded to each in entire distribution line is timely known
Not, convenient for distribution, personnel make adjustment, and ensure that everything goes well with your work for entire distribution system.
Currently, can only check phase used in equipment by artificial scene for the detection method of phase sequence in distribution line
Then sequence is input in management system one by one and is calculated and deployed, this method has sizable retardance, cannot be the
One time determined the three-phase equilibrium of entire distribution line, reduced working efficiency, also wastes a large amount of manpowers and carries out data acquisition
A kind of work, it is therefore desirable to more convenient phase sequence identification device.
Summary of the invention
It is existing to solve the present invention provides a kind of intelligent phase sequence identification device for the deficiency in the presence of the prior art
Have and phase sequence identification carried out and the inefficient problem of existing time-consuming to single-phase load in distribution line by the way of manually checking.
To achieve the above object, present invention employs the following technical solutions:
A kind of intelligence phase sequence identification device, the power circuit including three-phase five-wire mode further includes being electrically connected with power circuit
Phase option circuit and phase sequence identification circuit include Selecting phasing switch and industrial connector, institute in the phase option circuit
It states any one phase line suitching type in the incoming end of Selecting phasing switch and three phase lines of power circuit to be electrically connected, picks out end and industry
Connector is electrically connected, and the zero curve and ground line of industrial connector and power circuit are electrically connected;
The practical access of industrial connector is judged in the phase sequence identification circuit including the use of voltage difference between different routes
The detection module of phase, the detection module include voltage detection unit, two ports of the voltage detection unit and power supply
Two phase lines in circuit are electrically connected, while voltage detection unit is also electrically connected with the zero curve in power circuit, voltage detection unit
Another port is electrically connected with the end that picks out that Selecting phasing switchs.
Compared with the prior art, the invention has the following beneficial effects:
1, the present invention can be acquired on detection module and be connect by phase option circuit and the cooperation for mutually being permitted identification circuit
Enter voltage value between the different port of circuit, may determine that the specific phase of load electricity consumption by these voltage values, and by aobvious
Show that device shows or uploads to power & environment supervision device and carries out whole allotment, gets rid of error present in manual operation and delay, have
Have the advantages that accurate efficient, also saves human cost;
2, the configuration of the present invention is simple is reliable, only practical simple detection module, Selecting phasing switch and industrial connector etc.
Common equipment is the identification completed to single-phase load phase sequence, and wherein this more valuable component of mutual inductor has only used one
A, overall cost is cheap, is convenient for large-scale use.
Detailed description of the invention
Fig. 1 is the circuit connection diagram of connection type in the embodiment of the present invention 1;
Fig. 2 is the circuit connection diagram of connection type in the embodiment of the present invention 2;
Fig. 3 is the circuit connection diagram of connection type in the embodiment of the present invention 3;
In figure: 1 detection module, 2 Selecting phasings switch, 3 industrial connectors, 4 breaker protectors, 5 current transformers.
Specific embodiment
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
Embodiment 1:
As shown in Figure 1, the invention proposes a kind of intelligent phase sequence identification device, the power circuit including three-phase five-wire mode,
Further include the phase option circuit being electrically connected with power circuit and phase sequence identification circuit, includes that phase is selected in the phase option circuit
Select switch 2 and industrial connector 3, the incoming end of the Selecting phasing switch 2 and any one phase in three phase lines of power circuit
Line suitching type is electrically connected, and picks out end and is electrically connected with industrial connector 3, and industrial connector 3 and the zero curve and ground line of power circuit are electrically connected;
The practical access phase of industrial connector is judged in phase sequence identification circuit including the use of voltage difference between different routes
Detection module 1, the detection module 1 includes voltage detection unit, two ports of the voltage detection unit and power supply electricity
Two phase lines in road are electrically connected, while voltage detection unit is also electrically connected with the zero curve in power circuit, voltage detection unit it is another
A port is electrically connected with the end that picks out that Selecting phasing switchs.
For ease of description, the firewire in three-phase five-wire mode circuit is referred to as A, B, C triple line, zero curve by the present embodiment
It for N line, is grounded as PE line, four voltage ports being arranged on detection module 1 are referred to as V1, V2, V3, VN, then specifically
Connection relationship is as follows:
In phase option circuit, the incoming end suitching type of Selecting phasing switch 2 is separately connected A, B, C three-line, connects
Outlet is electrically connected with industrial connector 3, and industrial connector 3 is electrically connected with N line, PE line respectively;In phase sequence identification circuit, the port V1 with
The connection of A phase line, the port V2 connect with B phase line, and the port VN is connect with N line, and on detection module 1 the remaining port V3 then with phase
The end that picks out of selection switch 2 is electrically connected.
The invention also includes for monitoring the current detection circuit for being finally linked into load current value, the current detecting
It include current transformer 5 in circuit, the incoming end of the current transformer 5 and the end that picks out of Selecting phasing switch 2 connect, pick out
End is connect with industrial connector 3;Meanwhile the end that picks out of current transformer 5 is also acquired with 1 communication connection of detection module with transmitting
Current data.
It in the present embodiment, further include having breaker protector 4 in phase option circuit, the access of the breaker protector 4
End is connect with Selecting phasing switch 2, is picked out end and is connect respectively with the port V3 of the incoming end of current transformer 5 and detection module 1,
Breaker protector 4 can voluntarily cut off circuit, protective wire when there is current fluctuation in the power supply line of access load
The safety of element and load equipment in road;It is provided with fuse wire protector on any circuit that detection module 1 is connected,
It can protect the element in detection module 1 when electric current is excessive.
For the monitored voltage of simpler and intuitive display, current data and the phase for loading and using is picked out,
The detection module 1 is also connected with display screen, voltage and current data collected can be shown on the display screen, and final
Directly display the phase condition used via the load that above-mentioned voltage and current value judges;Detection module 1 is also and rotating ring
Monitoring system connection, for phase sequence data to be uploaded to monitoring server, convenient for administrative staff to three in whole distribution line
It balances each other and is adjusted.
It should be noted that the port for connecting circuit in the present embodiment on detection module 1 is the port RJ45, the electricity
Pressure detection unit is three-phase and four-line intelligent voltage table.
The working principle of the invention is described below: after load is switched to industrial connector 3, being connected and is closed according to foregoing circuit
System, if the A phase electricity that load uses, then A phase line is accessed in the port V1 and the port V3, between V1 and V3 voltage for 0, V1 and V2 it
Between voltage be positive normalizing voltage between lines 380V, voltage is positive voltage 220V between normalizing line and zero curve between V1 and VN, the voltage
Numerical value intelligent recognition after microprocessor is handled is A phase electricity;If the B phase electricity used is loaded, then voltage is between V1 and V2
B phase line is accessed in the normal fire voltage between lines port 380V, V2 and the port V3, voltage voltage between 0, V1 and VN between V2 and V3
Be positive voltage 220V between normalizing line and zero curve, and voltage value intelligent recognition after microprocessor is handled is B phase electricity;If negative
The C phase electricity used is carried, then the port V1, the port V2 and the port V3 are respectively connected to A, B, C triple line, between V1 and V3, V2 and V3
Voltage is 380V, and voltage is 220V between V3 and VN, and voltage value intelligent recognition after microprocessor is handled is C phase
Electricity.
In use, after access load, detection module 1 automatically identifies load according to above-mentioned principle to be made the present invention
Phase, and shown on a display screen, operator can directly read the phase of display;Institute in the distribution system simultaneously
There is detection module 1 that phase sequence data are sent to rotating ring monitoring system, staff can check whole phase ordinal numbers in control terminal
According to and regulated and controled.
Embodiment 2:
As shown in Fig. 2, the other parts of the present embodiment are same as Example 1, the difference is that detection module 1
The port V2 and the end that picks out of Selecting phasing switch 2 are electrically connected, and the port V3 is connect with C phase line.
Under the connection relationship, if the A phase electricity that load uses, voltage voltage between 0, V1 and V3 is between V1 and V2
Voltage is 220V between 380V, V1 and VN;If loading the B phase electricity used, voltage is 380V, V2 between V1 and V2, V2 and V3
Voltage is 220V between VN;If loading the C phase electricity used, voltage is 380V between V1 and V2, and voltage is 0 between V2 and V3,
Voltage is 220V between V2 and VN.
Embodiment 3:
As shown in figure 3, the other parts of the present embodiment are same as Example 1, the difference is that detection module 1
The port V1 and the end that picks out of Selecting phasing switch 2 are electrically connected, and the port V3 is connect with C phase line.
Under the connection relationship, if the A phase electricity that load uses, voltage is 380V, V1 and VN between V1 and V2, V1 and V3
Between voltage be 220V;If the B phase electricity that load uses, voltage is 0, V between V1 and V2, and voltage is 380V between 1 and V3, V1 with
Voltage is 220V between VN;If loading the C phase electricity used, voltage is 380V between V1 and V2, and voltage is 0, V1 between V1 and V3
Voltage is 220V between VN.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (7)
1. a kind of intelligence phase sequence identification device, the power circuit including three-phase five-wire mode, it is characterised in that: further include and power supply electricity
The phase option circuit and phase sequence identification circuit that road is electrically connected, include in the phase option circuit Selecting phasing switch and industry even
Device is connect, any one phase line suitching type is electrically connected in the incoming end of the Selecting phasing switch and three phase lines of power circuit, picks out
End is electrically connected with industrial connector, and the zero curve and ground line of industrial connector and power circuit are electrically connected;
The detection module of the practical access phase of industrial connector, institute are judged in the phase sequence identification circuit including the use of voltage difference
Stating detection module includes voltage detection unit, two ports of the voltage detection unit and two phase line electricity in power circuit
Even, while voltage detection unit is also electrically connected with the zero curve in power circuit, and the third port of voltage detection unit and phase are selected
The end that picks out for selecting switch is electrically connected.
2. a kind of intelligent phase sequence identification device as described in claim 1, it is characterised in that: it further include current detection circuit, institute
Stating includes current transformer in current detection circuit, and the end that picks out of incoming end and the Selecting phasing switch of the current transformer connects
It connects, picks out end and connect with industrial connector;Meanwhile picking out for current transformer is held also with detection module communication connection to transmit
The current data of acquisition.
3. a kind of intelligent phase sequence identification device as claimed in claim 2, it is characterised in that: also wrapped in the phase option circuit
Include breaker protector, incoming end and the Selecting phasing switch of the breaker protector connect, pick out end respectively with current transformer
Incoming end and the third port of detection module be electrically connected.
4. a kind of intelligent phase sequence identification device as claimed in claim 2, it is characterised in that: what the detection module was connected appoints
Fuse wire protector is provided on meaning circuit.
5. a kind of intelligent phase sequence identification device as described in claim 2-4 any one, it is characterised in that: further include with it is described
The display screen or/and power & environment supervision system of detection module connection are connected, display screen display voltage collected, electric current and
Phase sequence data, the rotating ring monitoring system is for Centralized Monitoring and processing related electrical parameters.
6. a kind of intelligent phase sequence identification device as claimed in claim 5, it is characterised in that: all connections on the detection module
The port of circuit is the port RJ45.
7. a kind of intelligent phase sequence identification device as claimed in claim 6, it is characterised in that: the voltage detection unit is three-phase
Four line intelligent voltage tables.
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CN201710288977.1A CN106896278B (en) | 2017-04-27 | 2017-04-27 | A kind of intelligence phase sequence identification device |
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CN201710288977.1A CN106896278B (en) | 2017-04-27 | 2017-04-27 | A kind of intelligence phase sequence identification device |
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CN106896278B true CN106896278B (en) | 2019-07-05 |
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US4023101A (en) * | 1975-08-20 | 1977-05-10 | Christoffer Virgil F | Multiple function electrical measuring and indicating apparatus |
US4196378A (en) * | 1977-02-07 | 1980-04-01 | Tae-Weon, Mo | Circuit for detecting a positive phase or an opposite phase in three phase alternating power source |
JPH03269267A (en) * | 1990-03-19 | 1991-11-29 | Mitsui Deutz Diesel Engine Kk | Phase sequence detecting device for three-phase distribution line in single-phase distribution line |
CN202068170U (en) * | 2011-06-09 | 2011-12-07 | 广州广一泵业有限公司 | Automatic power supply phase sequence adjusting device for three-phase water pump or blower fan |
CN104076209A (en) * | 2014-06-12 | 2014-10-01 | 珠海格力电器股份有限公司 | Detection device for motor |
CN105150863A (en) * | 2015-08-27 | 2015-12-16 | 株洲南车时代电气股份有限公司 | Connection device for external power source of railway vehicle |
CN106018985A (en) * | 2016-05-17 | 2016-10-12 | 深圳市思达仪表有限公司 | Voltage negative phase sequence detection method and system for three-phase electric energy meter |
CN106291141A (en) * | 2016-08-30 | 2017-01-04 | 中国能源建设集团江苏省电力建设第工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
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2017
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Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4023101A (en) * | 1975-08-20 | 1977-05-10 | Christoffer Virgil F | Multiple function electrical measuring and indicating apparatus |
US4196378A (en) * | 1977-02-07 | 1980-04-01 | Tae-Weon, Mo | Circuit for detecting a positive phase or an opposite phase in three phase alternating power source |
JPH03269267A (en) * | 1990-03-19 | 1991-11-29 | Mitsui Deutz Diesel Engine Kk | Phase sequence detecting device for three-phase distribution line in single-phase distribution line |
CN202068170U (en) * | 2011-06-09 | 2011-12-07 | 广州广一泵业有限公司 | Automatic power supply phase sequence adjusting device for three-phase water pump or blower fan |
CN104076209A (en) * | 2014-06-12 | 2014-10-01 | 珠海格力电器股份有限公司 | Detection device for motor |
CN105150863A (en) * | 2015-08-27 | 2015-12-16 | 株洲南车时代电气股份有限公司 | Connection device for external power source of railway vehicle |
CN106018985A (en) * | 2016-05-17 | 2016-10-12 | 深圳市思达仪表有限公司 | Voltage negative phase sequence detection method and system for three-phase electric energy meter |
CN106291141A (en) * | 2016-08-30 | 2017-01-04 | 中国能源建设集团江苏省电力建设第工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
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Denomination of invention: An intelligent phase sequence recognition device Effective date of registration: 20230525 Granted publication date: 20190705 Pledgee: Wujia sub branch of Hubei Three Gorges Rural Commercial Bank Co.,Ltd. Pledgor: HUBEI RUINENG ELECTRIC CO.,LTD. Registration number: Y2023980041619 |