CN209591246U - A kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function - Google Patents

A kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function Download PDF

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Publication number
CN209591246U
CN209591246U CN201820316735.9U CN201820316735U CN209591246U CN 209591246 U CN209591246 U CN 209591246U CN 201820316735 U CN201820316735 U CN 201820316735U CN 209591246 U CN209591246 U CN 209591246U
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module
phase
electric energy
energy meter
wiring
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CN201820316735.9U
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冯建平
李畸勇
刘福
全学明
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Guangxi Wangguan Electrical Co Ltd
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Guangxi Wangguan Electrical Co Ltd
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Abstract

The utility model discloses a kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, is related to electric-power metering false wiring analogue technique field.The three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, including microprocessor, controller module, liquid crystal display module, wireless communication module, Keysheet module, relay array, selftest module, the first connecting terminal, the second connecting terminal and power module, the on-off of relay array is controlled by wireless communication module or Keysheet module, to realize the automatic switchover of Wrong wiring way, efficiently quick, safety, is greatly shortened the setting time of all frequent fault modes of connection of three-phase three-wire electric energy meter;Using liquid crystal display module as display window, false wiring information and false wiring figure can display real-time, man-machine dialog interface is friendly;And Keysheet module use electric silica gel touch key-press, make operation it is easier, push button longevity is longer.

Description

A kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function
Technical field
The utility model belongs to electric-power metering false wiring analogue technique field more particularly to a kind of intelligent control three-phase three The switching of line false wiring of electric energy meter mode realizes test, verification electric energy meter metering performance and to electrical energy measurement work people The Multi-functional analog device that member gives training.
Background technique
Nowadays, electric power industry development is swift and violent, in order to guarantee power industry production, electrical energy measurement can it is reliable, accurately into Row, we have to carry out electrical energy measurement by reliable instrument and meter, once occur mistake in electric energy meter metering process, just It is possible that great economic loss can be brought to user or power supply enterprise;In order to get hold of this important link, electric energy meter It has to carry out stringent verification and stability test before factory, and electrical energy measurement personnel also have to have higher industry Quality of being engaged in and workmanship.
Currently, both at home and abroad to the verification of the three-phase three-wire electric energy meter predominantly reliability of metering and in false wiring shape The Function detection of electric energy meter under state, and the latter then mainly by the way that Wrong wiring way manually is arranged after, then by electric energy meter It is linked into power grid, the three-phase three-wire electric energy meter of false wiring is shown that content is compared with canonical reference content, from And judge whether three-phase electric energy meter is normal;Equally, the training to electrical energy measurement personnel now and examination are mainly also to pass through people Work manual setting Wrong wiring way carries out, and during Wrong wiring way is manually arranged not can guarantee people The mistake of work setting is consistent with predetermined condition, and disconnection process very complicated, and quite time-consuming, inefficiency, there are certain peaces Full hidden danger.It can be seen that traditional mode that false wiring is manually arranged has been unable to meet modern efficient, accurate, intelligence Detection pattern demand.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of three-phase three-wire electric energy meter mistake with self-checking function Wiring simulator, there are two types of modes of operation: wireless by ZigBee after Wrong wiring way one is being arranged by host computer Transmission control relay array realizes Wrong wiring way switching;Another kind is directly by the keyboard mould on device control panel Block controls relay array and realizes Wrong wiring way switching, provides an operation letter to test, verifying electric energy meter metering performance Just, test platform fast, efficiently, safe;A safety, high speed operation intelligence are provided to be engaged in the staff of electrical energy measurement Study, test and the evaluating platform of change.
The utility model is to solve above-mentioned technical problem by the following technical solutions: a kind of three with self-checking function Three-phase three-wire system false wiring of electric energy meter simulator, including microprocessor, controller module, liquid crystal display module, channel radio Interrogate module, Keysheet module, relay array, selftest module, the first connecting terminal, the second connecting terminal and power module;
The microprocessor respectively with the wireless communication module, Keysheet module, controller module, liquid crystal display mould Block, selftest module and power module connection;The relay array respectively with the controller module, the first connecting terminal with And selftest module connection;The selftest module is also connect with one end of the second connecting terminal, the other end of the second connecting terminal with Three-phase three-wire electric energy meter connection;First connecting terminal also respectively with A phase voltage, B phase voltage, C phase voltage, A phase current And C phase current connection;The wireless communication module also carries out communication connection with host computer;Pass through wireless communication module or keyboard mould Block carries out the setting of Wrong wiring way, and then controls the on-off of relay array, to realize cutting automatically for Wrong wiring way It changes, simulates three-phase three-wire electric energy meter failure;
The microprocessor, the information for coming wireless communication module or Keysheet module transmission carry out dissection process, and The control instruction for forming control relay array is transferred to controller module;
The controller module controls relay array for transmitting microprocessor after the control instruction come is translated Carry out false wiring combination;
The liquid crystal display module, for showing false wiring information and false wiring figure;
The selftest module, for detecting route matching connection situation, it is ensured that relay array has pressed default false wiring Mode is combined;
The wireless communication module for receiving the control information of host computer, and is transferred to microprocessor;
The Keysheet module, for selecting the Wrong wiring way of three-phase three-wire electric energy meter for operator;
The power module, for providing power supply for whole device.
Further, the microprocessor is using MSP430F169 as master chip and including the control circuit of jtag interface, Artificial debugging is carried out by jtag interface converter, realizes and breakpoint, single step execution, read-write register debugging is such as set; MSP430F169 chip power-consumption very little, especially suitable for long-term battery-powered device.
Further, the relay array is made of single control, dual control and more control relays, is able to achieve including voltage Mutual inductor is primary, secondary disconnected phase, voltage transformer secondary error-polarity connection, voltmeter tail phase sequence misconnection, Current Transformer Secondary pole Property reversal connection, Current Transformer Secondary short circuit, the false wirings combination such as ammeter tail phase sequence misconnection, to simulate various electric power therefore Barrier output.
Further, the wireless communication module is ZigBee wireless communication module, can receive the control of host computer configuration software System instruction, and then relay array is controlled by controller module and carries out false wiring combination.
Further, the Keysheet module use electric silica gel touch key-press comprising up key, down key, move to left key, Move to right key, acknowledgement key, cancel key, setting key error, help button etc..
Compared with prior art, the three-phase three-wire electric energy meter false wiring provided by the utility model with self-checking function Simulator, including microprocessor, controller module, liquid crystal display module, wireless communication module, Keysheet module, relay Array, selftest module, the first connecting terminal, the second connecting terminal and power module pass through wireless communication module or keyboard mould Block controls the on-off of relay array, and to realize the automatic switchover of Wrong wiring way, efficiently quick, safety is greatly shortened The setting time of all frequent fault modes of connection of three-phase three-wire electric energy meter;Using liquid crystal display module as display window Mouthful, it can display real-time false wiring information and false wiring figure, man-machine dialog interface is friendly;And Keysheet module uses conductive silicon Glue touch key-press, make operation it is easier, push button longevity is longer;
The utility model selects three-phase three-wire electric energy meter false wiring type, tool by Keysheet module for operator Body includes: that voltage transformer is primary, secondary disconnected phase, voltage transformer secondary error-polarity connection, voltmeter tail phase sequence misconnection, and electric current is mutual The reversal connection of sensor secondary polarity, Current Transformer Secondary short circuit, the false wirings combination such as ammeter tail phase sequence misconnection, with simulation Various power failure outputs.
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 structure of the three-phase three-wire electric energy meter device for simulating false wiring with self-checking function of the utility model Schematic diagram.
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 shown in Figure 1, a kind of three-phase three-wire electric energy meter false wiring with self-checking function provided by the utility model Simulator, including microprocessor, controller module, liquid crystal display module, wireless communication module, Keysheet module, relay Array, selftest module, the first connecting terminal, the second connecting terminal and power module;
Microprocessor respectively with wireless communication module, Keysheet module, controller module, liquid crystal display module, self-test mould Block and power module connection;Relay array is connect with controller module, the first connecting terminal and selftest module respectively;From Inspection module is also connect with one end of the second connecting terminal, and the other end of the second connecting terminal is connect with three-phase three-wire electric energy meter; First connecting terminal is also connect with A phase voltage, B phase voltage, C phase voltage, A phase current and C phase current respectively;Wireless communication module Also communication connection is carried out with host computer.
Microprocessor is turned as master chip and including the control circuit of jtag interface by jtag interface using MSP430F169 Parallel operation carries out artificial debugging, realizes and breakpoint, single step execution, read-write register debugging is such as arranged;MSP430F169 chip power-consumption Very little, especially suitable for long-term battery-powered device.
Relay array is made of single control, dual control and more control relay, be able to achieve it is primary including voltage transformer, two Secondary disconnected phase, voltage transformer secondary error-polarity connection, voltmeter tail phase sequence misconnection, Current Transformer Secondary error-polarity connection, electric current are mutual Sensor second short circuit, the false wirings combination such as ammeter tail phase sequence misconnection, to simulate various power failure outputs.
Wireless communication module is ZigBee wireless communication module, can receive host computer configuration software control instruction, Jin Ertong It crosses controller module control relay array and carries out false wiring combination.
Keysheet module uses electric silica gel touch key-press comprising up key, down key move to left key, move to right key, confirmation Key, cancel key, setting key error, help button etc..
Liquid crystal display module uses chromatic liquid crystal screen module, using large screen color liquid crystal screen as display window, Show that false wiring information and false wiring figure, man-machine dialog interface are friendly.
Embodiment 1
The present embodiment realizes three-phase three-wire system electric energy with the setting that the mode of operation of Keysheet module carries out Wrong wiring way Table voltage transformer secondary B phase is broken phase, Current Transformer Secondary IC short-circuit fault simulation, and process is as follows:
Under power blackout situation, power grid second is connect through the wiring of overvoltage, current transformer is connected to the utility model Outlet is connected to three-phase three-wire electric energy meter again after line terminals, operates a switch and powers on, observe three-phase three-wire electric energy meter show Ua, Ub, Uc, Ia, Ic, and voltage and current parameter is shown normally, press at this time " ↑ (up key), ↓ (down key), ← (moving to left key), → (moving to right key) " chooses option to operate mobile cursor, when option becomes inverse display, presses acknowledgement key and chooses this, Voltage transformer secondary B phase is successively chosen to break phase, Current Transformer Secondary IC short circuit option presses setting key error, observable False wiring information on to chromatic liquid crystal screen module are as follows: electric energy meter voltage transformer quadratic B mutually break phase, current transformer two Secondary IC short circuit;Voltage transformer secondary shows that the disconnected phase of B phase, Current Transformer Secondary show IC short circuit on false wiring figure, simultaneously Relay array starts to act, and three-phase three-wire electric energy meter begins to send out the disconnected phase of buzzer, defluidization alarm, while can also obviously see Break phase, defluidization alarm lamp of electric energy meter is observed to start to flash, the liquid crystal display on electric energy meter only shows Ua, Uc, Ia field, and Ub voltage parameter, which becomes 0V, Ic current parameters, becomes 0A.
In view of the utility model may apply to emulate in cabinet body, only display electric energy meter, then nothing on cabinet panel is emulated Other control modules, at this time keyboard operation are obviously no longer desirable for the simulated teaching of emulation cabinet body, and in view of the situation, this is practical It is novel and increase another mode of operation, i.e., by host computer configuration software be arranged after Wrong wiring way by ZigBee without Line transmission control relay array realizes Wrong wiring way switching.Control instruction is generated by host computer configuration software, and is passed through ZigBee home control network communication protocol sends control instruction to microprocessor, and received instruction is parsed, and forms control relay The control instruction of device array controls relay array after controller module is translated and carries out false wiring combination, so as to Realize that long-range control relay array realizes fault simulation.
Embodiment 2
The present embodiment realizes three-phase with the setting that the mode of operation of ZigBee wireless communication module carries out Wrong wiring way Three-wire system electric energy meter voltage transformer secondary A, C phase is broken phase, Current Transformer Secondary Ia short-circuit fault simulation, and process is as follows:
Under power blackout situation, power grid second is connect through the wiring of overvoltage, current transformer is connected to the utility model Outlet is connected to three-phase three-wire electric energy meter again after line terminals, operates a switch and powers on, can be observed three-phase three-wire electric energy meter show Ua, Ub, Uc, Ia, Ic, and voltage and current parameter are shown normally, run host computer configuration software at this time, select ZigBee wireless telecommunications Serial ports, into training interface, choose right side voltage transformer secondary A, C phase break phase, Current Transformer Secondary Ia short circuit option, Setting key error is pressed, false wiring information in chromatic liquid crystal screen module can be observed are as follows: electric energy meter voltage transformer two Secondary A, C phase is broken phase, Current Transformer Secondary Ia short circuit;Voltage transformer secondary shows the disconnected phase of A, C phase, electric current on false wiring figure The secondary display Ia short circuit of mutual inductor, while relay array starts to act, it is disconnected that three-phase three-wire electric energy meter begins to send out buzzer Phase, defluidization alarm, while can also obviously observe that break phase, defluidization alarm lamp of electric energy meter starts to flash, the liquid crystal on electric energy meter Display screen only shows Ub, Ic field, and Ua, Uc voltage parameter become 0V, Ia current parameters becomes 0A.
There are two types of operations for the three-phase three-wire electric energy meter device for simulating false wiring tool with self-checking function of the utility model Mode: one is the software configured by host computer setting Wrong wiring way and control information is generated, which passes through ZigBee home control network communication protocol is sent to microprocessor, and another kind is that operator directly passes through Keysheet module and carries out false wiring The selection (realizing the switching of Wrong wiring way) of mode, and press setting key error and generate control information;Microprocessor receives Dissection process is carried out to the control information of ZigBee wireless communication module or Keysheet module, and forms the control of control relay array System instruction controls relay array after controller module is translated and carries out false wiring combination, at this time chromatic liquid crystal screen Module will show false wiring information and false wiring figure.
When the staff of electrical energy measurement is engaged in test, verification electric energy meter metering performance or training, it can arbitrarily be arranged three Three-phase three-wire system false wiring of electric energy meter type, comprising: voltage transformer is primary, secondary disconnected phase, and voltage transformer secondary polarity is anti- It connects, voltmeter tail phase sequence misconnection, Current Transformer Secondary error-polarity connection, Current Transformer Secondary short circuit, ammeter tail phase sequence is wrong Connect equal false wirings combination;In use, outlet is connected again after wiring to be connected to second connecting terminal of the utility model It is connected in three-phase three-wire electric energy meter, the selftest module of the utility model can detect connection match condition, it is ensured that after Electric appliance array has pressed default Wrong wiring way combination;The utility model can provide one for test, verification electric energy meter metering performance A test platform simple and convenient for operation, efficient, safe;Safety, a height are provided to be engaged in the staff of electrical energy measurement Operate intelligentized study, test and evaluating platform.
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 (5)

1. a kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, it is characterised in that: including micro process Device, controller module, liquid crystal display module, wireless communication module, Keysheet module, relay array, selftest module, first connect Line terminals, the second connecting terminal and power module;
The microprocessor respectively with the wireless communication module, Keysheet module, controller module, liquid crystal display module, from Examine module and power module connection;The relay array respectively with the controller module, the first connecting terminal and from Examine module connection;The selftest module is also connect with one end of the second connecting terminal, the other end and three-phase of the second connecting terminal The connection of three-wire system electric energy meter;First connecting terminal also respectively with A phase voltage, B phase voltage, C phase voltage, A phase current and C phase Electric current connection;The wireless communication module also carries out communication connection with host computer;
The setting of Wrong wiring way is carried out by wireless communication module or Keysheet module, and then controls the logical of relay array It is disconnected, to realize the automatic switchover of Wrong wiring way, simulate three-phase three-wire electric energy meter failure.
2. the three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, feature exist as described in claim 1 In: the microprocessor is using MSP430F169 as master chip and including the control circuit of jtag interface.
3. the three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, feature exist as described in claim 1 In: the relay array is made of single control, dual control and more control relays.
4. the three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, feature exist as described in claim 1 In: the wireless communication module is ZigBee wireless communication module.
5. the three-phase three-wire electric energy meter device for simulating false wiring with self-checking function, feature exist as described in claim 1 Use electric silica gel touch key-press in: the Keysheet module comprising up key, down key, move to left key, move to right key, acknowledgement key, Cancel key, setting key error, help button.
CN201820316735.9U 2018-03-08 2018-03-08 A kind of three-phase three-wire electric energy meter device for simulating false wiring with self-checking function Active CN209591246U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111415546A (en) * 2020-05-28 2020-07-14 广东电网有限责任公司培训与评价中心 Serial-type electric energy measurement emulation training device that works a telephone switchboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111415546A (en) * 2020-05-28 2020-07-14 广东电网有限责任公司培训与评价中心 Serial-type electric energy measurement emulation training device that works a telephone switchboard

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