CN208207062U - A kind of SCM Based three-phase four-wire system electrical energy meter fault simulator - Google Patents
A kind of SCM Based three-phase four-wire system electrical energy meter fault simulator Download PDFInfo
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- CN208207062U CN208207062U CN201820316850.6U CN201820316850U CN208207062U CN 208207062 U CN208207062 U CN 208207062U CN 201820316850 U CN201820316850 U CN 201820316850U CN 208207062 U CN208207062 U CN 208207062U
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Abstract
The utility model discloses a kind of SCM Based three-phase four-wire system electrical energy meter fault simulators, are related to electric-power metering fault simulation technical field.The SCM Based three-phase four-wire system electrical energy meter fault simulator, including fault type select button module, PC control monitoring modular, slave computer control processing module, relay array module and three-phase four-wire system electric energy meter, the simulation of three-phase four-wire system electric energy meter voltage and current failure is realized by fault type select button module or PC control monitoring modular, without cumbersome wiring, securely and reliably, and strong operability；The utility model not only realizes the remote operation of fault simulation, can also realize long-range monitoring, further improve safety and operability.
Description
Technical field
The utility model belongs to electric-power metering fault simulation technical field more particularly to a kind of SCM Based three-phase four
Line electrical energy meter fault simulator.
Background technique
With the determination of national grid smart grid development plan, intelligent terminal of the intelligent electric meter as smart grid, tool
There is the wide market demand.Intelligent electric meter not only has the function of the electrical energy measurement of ordinary electric meter, moreover it is possible to operation of power networks state into
The functions such as row real-time monitoring and the fault type for detecting external three phase connections appearance.But intelligent electric energy meter is walked
Enter market, the attitude that user fosters suspicion to the reliability of intelligent electric meter, so needing to verify intelligent electric meter, detection electricity
Can table whether work that can be safe and reliable.
And for metrological personnel, it is needed to be grasped before life's work various appeared in three-phase four-wire system wiring
Fault type, could cope with calmly various situations in later work, thus to the staff that will be on duty in power grid into
Row training is essential.Verification to electric energy meter and the training of metrological personnel is required to provide three-phase four-wire system electric energy
The various fault types of voltage and current in table wiring, and be that can not generate true fault type to come for electric energy meter school in practice
It tests and uses with staff training.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of SCM Based three-phase four-wire system electrical energy meter fault
Simulator can simulate the various fault types of three-phase four-wire system voltage and current wiring, as the disconnected phase of voltage, table tail are reversely connected；
Error-polarity connection, the second short circuit of electric current；The fault types such as electric energy meter tail current disengaging reversal connection；Failure simulation device simulation electricity
The fault type of current voltage is more, and control is flexibly, easily operated, highly-safe.
The utility model is to solve above-mentioned technical problem by the following technical solutions: one kind SCM Based three
Phase four-wire system electrical energy meter fault simulator, including fault type select button module, PC control monitoring modular, slave computer
Control processing module, relay array module and three-phase four-wire system electric energy meter；Slave computer control processing module respectively with
The fault type select button module, PC control monitoring modular and the connection of relay array module；The relay
Array module is also connect with three phase mains, three-phase four-wire system electric energy meter respectively；
The fault type select button module selects different buttons according to fault type for operator, and will
Button commands are sent to the slave computer control processing module；
The PC control monitoring modular is controlled for issuing faulting instruction according to different fault types to slave computer
Processing module, while the status information of slave computer control processing module is obtained, monitor the state of whole device；
The slave computer controls processing module, the button commands or upper for issuing to fault type select button module
The faulting instruction that machine control monitoring modular issues is analyzed and processed, and is formed corresponding control instruction and be sent to relay array
Module；
The relay array module carries out relay for controlling the control instruction that processing module issues according to slave computer
Combination, to simulate three-phase four-wire system electric energy meter different voltage failure and current failure, the output of relay array module is direct
It connect, fault type can be reacted directly on electric energy meter with three-phase four-wire system electric energy meter.
Further, the slave computer control processing module and PC control monitoring modular pass through RS485 communication interface
It is communicatively coupled.
Further, the relay array module is made of 31 relays, wherein the switching of 13 relays is used
In the voltage failure simulation for realizing three-phase four-wire system electric energy meter, in addition the switching of 18 relays is for realizing three-phase four-wire system electricity
The current failure simulation of energy table.
Further, the fault type select button module is by respectively representing three-phase four-wire system voltage failure, electric current
The button of failure forms.
Further, the slave computer control processing module is using MSP430F149 as the signal processing of master chip and signal
Output circuit.
Further, the PC control monitoring modular is under the WIN7 operating system at the end PC by LabVIEW software
The control platform built.
Compared with prior art, SCM Based three-phase four-wire system electrical energy meter fault simulation provided by the utility model
Device, including fault type select button module, PC control monitoring modular, slave computer control processing module, relay battle array
Column module and three-phase four-wire system electric energy meter realize three by fault type select button module or PC control monitoring modular
The simulation of phase four-wire system electric energy meter voltage and current failure, without cumbersome wiring, securely and reliably, and strong operability；Host computer
Control monitoring modular and slave computer control processing module and are communicated, and not only realize the remote operation of fault simulation, can be with
It realizes long-range monitoring, further improves safety and operability；The failure simulation device of the utility model is to relay battle array
When column module is designed, the simulation of independent failure can be not only carried out, the superposition of various faults can also be carried out, it can be effective
The various faults type for simulating three-phase four-wire system electrical energy meter electricity current voltage, meets metrological personnel training project demand.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural frames of SCM Based three-phase four-wire system electrical energy meter fault simulator of the utility model
Figure；
Fig. 2 is that the utility model PC control monitoring modular controls and monitors working condition to the selection of fault type
Schematic diagram；
Fig. 3 is the work flow diagram that the utility model realizes fault type selection by button.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical solution in the utility model is carried out clear, complete
Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative labor
Every other embodiment, fall within the protection scope of the utility model.
As depicted in figs. 1 and 2, a kind of SCM Based three-phase four-wire system electrical energy meter fault provided by the utility model
Simulator, including fault type select button module, PC control monitoring modular, slave computer control processing module, relay
Device array module and three-phase four-wire system electric energy meter；Slave computer control processing module respectively with fault type select button module,
PC control monitoring modular and the connection of relay array module；Relay array module also respectively with three phase mains, three-phase
The connection of four-wire system electric energy meter；
Fault type select button module is the button group by respectively representing three-phase four-wire system voltage failure, current failure
At operator selects different buttons according to fault type, and button commands are sent to slave computer control processing module.
PC control monitoring modular is to be put down under the WIN7 operating system at the end PC by the control that LabVIEW software is built
Platform, and be communicatively coupled with slave computer control processing module by RS485 communication interface；PC control monitoring modular is used for
Faulting instruction is issued according to different fault types and controls processing module to slave computer, while obtaining slave computer control processing module
Status information, monitor the state of whole device.
Slave computer, which controls processing module, to be used for using MSP430F149 as the signal processing of master chip and signal output apparatus
The faulting instruction that the button commands or PC control monitoring modular issue to fault type select button module issue divides
Analysis processing, and form corresponding control instruction and be sent to relay array module.
Relay array module is made of 31 relays, wherein the switching of 13 relays is for realizing three-phase and four-line
The voltage failure of electric energy meter processed is simulated, in addition the switching of 18 relays for realizing three-phase four-wire system electric energy meter current failure
Simulation.
The failure simulation method of the SCM Based three-phase four-wire system electrical energy meter fault simulator of the utility model, including
Following steps:
1) to the voltage and current fault type of three-phase four-wire system electric energy meter, cutting for corresponding relay array module is preset
Rule is changed, processing module is controlled by slave computer to control the actuating of relay in relay array module；
2) different instructions is preset to each button in fault type select button module, operator is not according to
Same fault type selects different buttons to press, and slave computer control processing module scans the button issued to the button being pressed
Instruction, and carry out corresponding analysis processing and form control instruction to drive the corresponding actuating of relay, pass through the switching of relay
Generate corresponding failure；
3) slave computer control processing module is communicated with PC control monitoring modular by RS485, PC control
Monitoring modular obtains the status information of slave computer control processing module, monitors the state of whole device；PC control prison simultaneously
Survey module also sends faulting instruction and controls processing module to slave computer, and controls relay array module and generate corresponding movement,
Corresponding failure is generated, realizes long-range monitoring and remote operation.
The slave computer control processing mould of the SCM Based three-phase four-wire system electrical energy meter fault simulator of the utility model
Block is controlled by both of which, and one is the states of scanning outer button (fault type select button module), receives button commands
Control the actuating of relay, another kind be by RS485 communication interface and PC control monitoring modular (abbreviation host computer) it
Between two-way communication, can from slave computer control processing module (abbreviation slave computer) to the working condition of host computer sending device, allow
Host computer operation energy remote real time monitoring can also be sent faulting instruction to slave computer by host computer, and slave computer is handled it, I/
O exports control instruction and gives relay array module, and the actuating of relay exports fault type.
Fig. 2 describes the principle of selection control and monitoring duty that host computer is realized to fault type in detail.It is the next
Button state, fault type information are sent to host computer by RS485 by machine, after host computer receives information, by analyzing, mentioning
Breath of winning the confidence just will appreciate that the working condition of device at this time；When host computer will remotely operate, event is sent to slave computer by RS485
Barrier instruction, slave computer is made a response according to faulting instruction, while also can see device actuating of relay message reflection to host computer
Whether the fault type of requirement is reliably outputed.
Fig. 3 describes the course of work that fault type selection is realized by fault type select button module in detail.For
Button in different fault type fault type select button modules all sets different instructions, when the device is operated, under
Position machine scan button state always, once button is pressed, slave computer will receive corresponding button by scan button state and refer to
It enables, and the actuating of relay is controlled according to the instruction, generate corresponding fault type.
The SCM Based three-phase four-wire system electrical energy meter fault simulator course of work of the utility model is as follows: in power grid
After three phase mains accesses the device input terminal, it can be selected by the button (fault type select button module) on device panel
It selects, fault type required for exporting；The input of device has three-phase voltage UA, UB, UC, UN, three-phase current IA+, IA-, IB+,
IB-,IC+,IC-；The fault type of voltage analog have it is disconnected mutually and phase sequence mistake, the fault type of current analog have second short circuit,
Error-polarity connection and phase sequence mistake.In failure selection, the combination superposition selection of failure can be carried out, such as the existing open phase fault of voltage
There is the existing short trouble of phase sequence mistake, electric current not only but also other failures combination such as polarized reversal connection.When carrying out accident design, have
The setting of failure priority when normal three-phase four-wire system voltage input, first has the design of disconnected phase, followed by the failure of phase sequence is set
Meter；It is short-circuit before this for the design of electric current, it is finally Phase-sequence Fault design followed by error-polarity connection, it is real according to priority design
The combination selection of existing failure.The device can not only select to realize fault type simulation by button, can also be led to by host computer
Two-way communication between RS485 and slave computer is crossed remotely to monitor and select fault type.
Above disclosed is only specific embodiment of the present utility model, but the protection scope of the utility model not office
It is limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in change
Change or modification, should be covered within the scope of the utility model.
Claims (6)
1. a kind of SCM Based three-phase four-wire system electrical energy meter fault simulator, it is characterised in that: selected including fault type
Select button module, PC control monitoring modular, slave computer control processing module, relay array module and three-phase four-wire system
Electric energy meter；The slave computer control processing module monitors mould with the fault type select button module, PC control respectively
Block and the connection of relay array module；The relay array module also respectively with three phase mains, three-phase four-wire system electric energy meter
Connection；
The fault type select button module selects different buttons according to fault type for operator, and by button
Instruction is sent to the slave computer control processing module；
The PC control monitoring modular is handled for issuing faulting instruction according to different fault types to slave computer control
Module, while the status information of slave computer control processing module is obtained, monitor the state of whole device；
The slave computer controls processing module, button commands or host computer control for issuing to fault type select button module
The faulting instruction that monitoring modular processed issues is analyzed and processed, and is formed corresponding control instruction and be sent to relay array mould
Block；
The relay array module carries out relay group for controlling the control instruction that processing module issues according to slave computer
It closes, to simulate three-phase four-wire system electric energy meter different voltage failure and current failure.
2. SCM Based three-phase four-wire system electrical energy meter fault simulator as described in claim 1, it is characterised in that: institute
Slave computer control processing module is stated to be communicatively coupled with PC control monitoring modular by RS485 communication interface.
3. SCM Based three-phase four-wire system electrical energy meter fault simulator as described in claim 1, it is characterised in that: institute
It states relay array module to be made of 31 relays, wherein the switching of 13 relays is for realizing three-phase four-wire system electric energy
The voltage failure of table is simulated, and in addition the switching of 18 relays is simulated for realizing the current failure of three-phase four-wire system electric energy meter.
4. SCM Based three-phase four-wire system electrical energy meter fault simulator as described in claim 1, it is characterised in that: institute
Fault type select button module is stated to be made of the button for respectively representing three-phase four-wire system voltage failure, current failure.
5. SCM Based three-phase four-wire system electrical energy meter fault simulator as claimed in claim 1 or 2, feature exist
In: the slave computer control processing module is using MSP430F149 as the signal processing of master chip and signal output apparatus.
6. SCM Based three-phase four-wire system electrical energy meter fault simulator as claimed in claim 1 or 2, feature exist
In: the PC control monitoring modular is the control platform built under the WIN7 operating system at the end PC by LabVIEW software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316850.6U CN208207062U (en) | 2018-03-08 | 2018-03-08 | A kind of SCM Based three-phase four-wire system electrical energy meter fault simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316850.6U CN208207062U (en) | 2018-03-08 | 2018-03-08 | A kind of SCM Based three-phase four-wire system electrical energy meter fault simulator |
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| Publication Number | Publication Date |
|---|---|
| CN208207062U true CN208207062U (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445286A (en) * | 2018-03-08 | 2018-08-24 | 广西网冠电气有限公司 | A kind of three-phase four-wire system electrical energy meter fault simulator |
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2018
- 2018-03-08 CN CN201820316850.6U patent/CN208207062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445286A (en) * | 2018-03-08 | 2018-08-24 | 广西网冠电气有限公司 | A kind of three-phase four-wire system electrical energy meter fault simulator |
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