CN202736328U - Metering program control analog device - Google Patents
Metering program control analog device Download PDFInfo
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- CN202736328U CN202736328U CN 201220249337 CN201220249337U CN202736328U CN 202736328 U CN202736328 U CN 202736328U CN 201220249337 CN201220249337 CN 201220249337 CN 201220249337 U CN201220249337 U CN 201220249337U CN 202736328 U CN202736328 U CN 202736328U
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Abstract
The utility model designs metering program control analog device. The metering program control analog device comprises a program control three-phase power supply, a control/communication module, a low-tension current transformer, a simulation high-tension secondary voltage transformer, a simulation high-tension secondary current transformer, a high-tension voltage transformer secondary load tension drop analog module, a three-phase three-wire electric energy meter, a three-phase four-wire electric energy meter, a break relay, an automatic detection module, etc. The control/communication module is connected with the low-tension current transformer, the simulation high-tension secondary current transformer, the high-tension voltage transformer secondary load tension drop analog module and the program control three-phase power supply. The simulation high-tension secondary voltage transformer is connected with the program control three-phase power supply. The three-phase three-wire electric energy meter and the three-phase four-wire electric energy meter are in testing connection with the automatic detection module via the break relay. The automatic detection module includes an interface that is in communication with a host computer. The device of the utility model enables automatic determining wiring, loading voltage current detection wiring or the like to be realized, is convenient to operate, exhibits comprehensive functions, and is a multifunctional training device with combination of training, learning, practical operation, evaluation and examination.
Description
Technical field
The utility model relates to a kind of program-controlled analog device, relates in particular to a kind of program-controlled analog device that is applied to metering field.
Background technology
High-voltage metering cubicle, low-voltage metering cabinet various wiring errors may occur during physical cabling at the scene, and this wiring error can have influence on the metering of electric energy.No matter how better to avoid and in time expertly correct wiring error for the metrological personnel of electric power system, be employed personnel, start-up or school study personnel, all be must solution realistic problem.Usually solution has two kinds, and the one, solve on the spot at the operation scene, the 2nd, utilize very simple constructional device, carry out hilllock front simulation training.With regard to first method, because on-the-spot limitation (insecurity, rapidity), determined to carry out repeatedly, complete exercise, with regard to second method, constructional device is simple, and training contents is not comprehensive, and needs hand inspection after the wiring, energising operation difficulty is larger, not only dangerous but also waste time and energy.
The utility model content
For the problems referred to above, the utility model designs a metering program-controlled analog device, comprises program control three phase power power supply, control/communication module, low-voltage current mutual inductor, emulation high-voltage secondary voltage transformer (VT), emulation high-voltage secondary current transformer, high voltage potential transformer secondary load drop simulation module, three-phase and four-line electric energy meter, three-phase three-wire electric energy meter, disconnection relay, automatic detection module; Wherein:
Control/communication module is connected with low-voltage current mutual inductor, emulation high-voltage secondary current transformer, high voltage potential transformer secondary load drop simulation module and program control three phase power power supply, and emulation high-voltage secondary voltage transformer (VT) is connected with program control three phase power power supply; Three-phase three-wire electric energy meter, three-phase and four-line electric energy meter are connected connection through disconnecting relay with automatic detection module; Automatic detection module comprises the interface with upper machine communication, and when the disconnection relay was opened, the magnitude of voltage of automatic detection module testing circuit had judged whether circuit connection, and the result is uploaded to host computer, is corrected errors by host computer judgement line.
Described program control three phase power power supply comprises three-phase three-line voltage terminal and three-phase and four-line voltage terminal, and the interface that is connected with the low-voltage metering cabinet face with the high-voltage metering cubicle face.
The current terminal contact of described program control three phase power power supply is connected on the relay unit in control/communication module.
Described program control three phase power power supply comprises the RS232 communication interface that is connected with control/communication module.
Described control/communication module comprises the RS485 communication interface that is connected with automatic detection module and host computer.
The utility model metering program-controlled analog device also comprises voltage indicating gauge and electric current indicating gauge, and the electric current indicating gauge is connected with the disconnection relay, and the voltage indicating gauge is connected with disconnection relay, pilot lamp and the three phase power power supply of being connected through gauge tap; Voltage, the current value of real-time display measurement circuit current state.
The elementary connection control/communication module of described emulation high-voltage secondary current transformer, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase three-wire electric energy meter.
The elementary connection control/communication module of described low-voltage current mutual inductor, disconnection relay, on-load switch, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase and four-line electric energy meter.
The utility model metering program-controlled analog device also comprises timer and voice prompting device, and described timer and voice prompting device all adopt independent single-chip microcomputer, are connected on the device RS485 bus, receive the host computer instruction.
Good effect of the present utility model: this metering program-controlled analog device is to integrate the multi-functional Practical training equipment that training and learning, theoretical validation, practical operation, examination are taken an examination; when this device has personal safety protection, program-controlled, timing ga(u)ge, the functions such as voice suggestion, graphic interface, secondary voltage drop simulation, and simple operation, complete function.
This device can satisfy the electrician and examine the dress table in the evaluation to connect electric practical training project needs, also can be applicable to simultaneously power supply bureau in countryside and the daily technique drill of power distribution rush-repair central task personnel, and be applicable to each work verification of professional technical ability department, electric power system grass-roots unit, training on electric power department, college, technical school, vocational school.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the structured flowchart of program control three phase power power supply of the present utility model;
Fig. 3 is the structured flowchart of control/communication module of the present utility model;
Fig. 4 is the structured flowchart of automatic detection module of the present utility model;
Fig. 5 is the structured flowchart of timer of the present utility model;
Fig. 6 is the structured flowchart of voice prompting device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the metering program-controlled analog device of the utility model design, the chief component structure comprises program control three phase power power supply, control/communication module, automatic detection module, disconnection relay, electric energy meter combined connection box, low-voltage current mutual inductor, emulation high-voltage secondary voltage transformer (VT), emulation high-voltage secondary current transformer, high voltage potential transformer secondary load drop simulation module, three-phase and four-line electric energy meter, three-phase three-wire electric energy meter, voltage indicating gauge, electric current indicating gauge, pilot lamp, gauge tap, on-load switch, timer, voice prompting device etc.
Program control three phase power power supply is connected by the RS232 communication interface with control/communication module, be connected by the RS485 communication interface between control/communication module and host computer, timer, voice prompting device and the automatic detection module, program control three phase power power supply is connected by the photoelectric coupling mode with host computer.The electric current of program control three phase power power supply is transported to low-voltage current mutual inductor, emulation high-voltage secondary current transformer, disconnects relay, electric current indicating gauge and on-load switch by control/communication module; The voltage of program control three phase power power supply is transported to emulation high-voltage secondary voltage transformer (VT), high voltage potential transformer secondary load drop simulation module, disconnects relay, voltage indicating gauge, gauge tap and pilot lamp, and the operation of control high voltage potential transformer secondary load drop simulation module; Electric current and voltage connects between electric energy meter combined connection box, disconnection relay and the three-phase three-wire electric energy meter/three-phase and four-line electric energy meter; Disconnect that test connects between relay and the automatic detection module, so-called test connects and refers to disconnect that relay disconnects according to actual needs or the connecting circuit of closed and other devices, in order to this circuit is carried out the detection of voltage, electric current.When the disconnection relay disconnected, the magnitude of voltage of automatic detection module testing circuit judged whether to exist circuit connection, and the result is uploaded to host computer, was corrected errors by host computer judgement line.
Disconnect relay and select BST-902, by being connected of opening operation person wiring position and other devices, make wiring position become the independent test point.All arrange the position that disconnects relay, and its wiring point all can become independently test point.
The electric energy meter combined connection box is as the concentrated Wiring module for operator's wiring, processes through processing, by the breaking inner connecting copper block, and is used in conjunction with disconnecting relay, can become the independent test point when automatically detecting.
Emulation high-voltage secondary voltage transformer (VT), emulation high-voltage secondary current transformer, its secondary side is used in conjunction with disconnecting relay, can become the independent test point when automatically detecting.
High voltage potential transformer secondary load drop simulation module, simulated high-pressure Secondary Load of Voltage Transformer pressure drop ultimate principle, the method decay secondary voltage of employing resistance step-down is provided with a plurality of gears altogether, and the operator can measure the secondary voltage decay in the electric energy meter side.
The three-phase and four-line electric energy meter is positioned at the high-voltage secondary side, and three-phase three-wire electric energy meter is positioned at the low-pressure secondary side, can be used for wiring, the pocket watch state when checking different wiring and with disconnect relay and cooperate, make it when automatic detection, become independently test point.Because the utility model device is two-sided cabinet, phase three-wire three is the high-voltage metering cubicle face, and three-phase and four-line is the low-voltage metering cabinet face.The device start is defaulted as the high-voltage metering cubicle face, and the secondary side of same benchmark is the high-voltage secondary side; The low-pressure secondary side in like manner repeats no more.
The voltage indicating gauge can show the magnitude of voltage of out of phase; The electric current indicating gauge can show the current value of out of phase; Pilot lamp can show the running status of out of phase; In high-pressure side and low-pressure side a gauge tap control voltage indicating gauge is arranged respectively; On-load switch is positioned at low-pressure side, the actual power situation of analog subscriber.
As shown in Figure 2, the structure of program-controlled analog device comprises single-chip microcomputer, display unit, relay control unit, waveform storage unit, D/A converting unit, dc reference unit, three-phase power amplifier, relay unit, sampling unit, communication unit, and keyboard unit.Wherein single-chip microcomputer adopts W78E58, respectively control display unit, relay control unit, waveform storage unit, D/A converting unit, dc reference unit.The waveform storage unit presets the electric current and voltage three-phase waveform of digital quantity, and the D/A converting unit converts digital quantity to analog quantity by single-chip microcomputer according to specific sequential with reference to the dc reference of dc reference unit, generates the electric current and voltage three-phase waveform of simulation.The three-phase voltage current waveform is sent in the three-phase power amplifier and amplifies.The way of output that relay unit is arranged to fix by the control of relay control unit is the three-phase voltage current signal output of amplifying.The sampling unit sampled output signal, the one tunnel delivers to display unit with output signal shows in real time, another road feeds back to three power amplifiers, in real time fine setting output.Communication unit adopts the photoelectric coupling mode that program control three phase power power supply is connected with host computer, can be by host computer by the program control three phase power power supply of RS232 communication interface programmed control.Keyboard unit links to each other with single-chip microcomputer, can be controlled by the operator electric current, power supply, the phase place output of program control three phase power power device.
Program control three phase power power supply possesses perfect voltage, the safeguard measure of electric current, guarantees operator's personal safety; By computing machine arbitrarily regulation voltage, electric current and phase place.After the dress table is finished, can export three-phase and four-line or the three-phase three-line voltage electric current send electrical testing, the training operator is to the method for analysis and the judgement of false wiring.
As shown in Figure 3, control/communication module comprises single-chip microcomputer, RS485 module, RS232 module and relay unit.The single-chip microcomputer of control/communication module adopts C8051F340, by single-chip microcomputer connect respectively RS232, the RS485 module is finished the RS232 communication modes and is converted to the RS485 communication modes.The single-chip microcomputer electric current of controlling program control three-phase supply by the pilot relay plate outputs to high pressure or low-pressure side in addition, and the RS232 communication modes is converted to the RS485 communication modes; Described high-pressure side refers to the high-voltage metering cubicle face, and described low-pressure side refers to the low-voltage metering cabinet face.
After device (high-voltage metering cubicle face or low-voltage metering cabinet face) wiring was finished, host computer sent this face on-load voltage current order.It is all closed that all disconnect relay module.Host computer connects control/communication module, connects program control three phase power power supply by control/communication module by RS232 again by the RS485 communication interface.Program control three phase power power supply on-load voltage electric current (phase three-wire three or three-phase and four-line, it is phase three-wire three and three-phase and four-line that program control three phase power power supply electrifying pressure side button has two components, current terminal contact only has one group), the voltage that loads outputs to corresponding cabinet face (phase three-wire three connects the high-voltage metering cubicle face, and three-phase and four-line connects the low-voltage metering cabinet face) from this group terminal; Electric current is on current terminal contact is connected to relay unit control/communication module, and the Single-chip Controlling relay unit on the control/communication module switches to phase three-wire three (emulation high-voltage secondary current transformer among Fig. 1) or three-phase and four-line (Fig. 1 mesolow current transformer).The elementary connection control/communication module of emulation high-voltage secondary current transformer, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase three-wire electric energy meter etc.; The elementary connection control/communication module of low-voltage current mutual inductor, disconnection relay, on-load switch, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase and four-line electric energy meter etc.
As shown in Figure 4, automatic detection module comprises single-chip microcomputer, isolating device, relay, RS485 module and test point introducing point.The Position Design that automatic detection module need to connect up the operator become can independent test each point, utilize relay, isolating device and single-chip microcomputer internal comparator to judge whether line of point-to-point transmission, and check automatically by measurement module whether its line is correct, then judged result is uploaded to computing machine by the RS485 module, and display operation person's physical cabling figure on computers, make things convenient for teacher or examiner to examine.Have in the measurement module more than 800 the wiring of putting is detected, covered all wiring checks of operator.
After device (high-voltage metering cubicle face or low-voltage metering cabinet face) wiring was finished, host computer sent this face automatic decision wiring order, and all disconnect relay module and all disconnect.The test point that disconnect on the relay module this moment is incorporated into automatic detection module, and the test DC voltage on the automatic detection module is linked into test point by the relay on the automatic detection module.When having wiring (wire) to connect between two test point A, B, when the A point had DC voltage, the B point also had identical voltage so.The B point is connected to by isolating device on the single-chip microcomputer of tape comparator, detects the B point voltage by single-chip microcomputer, judges whether this root wire is arranged.
The utility model device also comprises timer and language prompting apparatus, adopts independent single-chip microcomputer, is connected on the device RS485 bus, receives the host computer instruction.As shown in Figure 5, timer adopts independent single-chip microcomputer C8051F310, is connected on the device RS485 bus, receives the host computer instruction and finishes time service, countdown, Presentation Function.As shown in Figure 6, voice prompting device adopts independent single-chip microcomputer C8051F340, is connected on the device RS485 bus, and the instruction of reception host computer is auxiliary finishes voice suggestion with speech chip, voice power amplifier, loudspeaker.
Timer and voice prompting device mainly are for the examination situation.When examination is used, timer is used for showing the maybe countdown after the exercise test time is set of current system time, voice prompting device is arranged on the examination beginning, take an examination 5 minutes in addition, examination processing completion time used for them, and by the voice reminder operator, convenient exercise is taken an examination.
Timer and voice prompting device adopt independent single-chip microcomputer, are connected on the device RS485 bus; Timer receives the host computer instruction and finishes setting-up time, countdown and Presentation Function, and the instruction of voice prompting device reception host computer is auxiliary finishes voice suggestion with speech chip, loudspeaker.
Claims (9)
1. a metering program-controlled analog device comprises program control three phase power power supply, control/communication module, low-voltage current mutual inductor, emulation high-voltage secondary voltage transformer (VT), emulation high-voltage secondary current transformer, high voltage potential transformer secondary load drop simulation module, three-phase and four-line electric energy meter, three-phase three-wire electric energy meter, disconnection relay, automatic detection module; Wherein:
Control/communication module is connected with low-voltage current mutual inductor, emulation high-voltage secondary current transformer, high voltage potential transformer secondary load drop simulation module and program control three phase power power supply; Emulation high-voltage secondary voltage transformer (VT) is connected with program control three phase power power supply; Three-phase three-wire electric energy meter, three-phase and four-line electric energy meter are connected with the automatic detection module test through disconnecting relay; Automatic detection module comprises the interface with upper machine communication.
2. metering program-controlled analog device as claimed in claim 1 is characterized in that, described program control three phase power power supply comprises three-phase three-line voltage terminal and three-phase and four-line voltage terminal, and the interface that is connected with the low-voltage metering cabinet face with the high-voltage metering cubicle face.
3. metering program-controlled analog device as claimed in claim 1 is characterized in that, the current terminal contact of described program control three phase power power supply is connected on the relay unit in control/communication module.
4. metering program-controlled analog device as claimed in claim 1 is characterized in that, described program control three phase power power supply comprises the RS232 communication interface that is connected with control/communication module.
5. metering program-controlled analog device as claimed in claim 1 is characterized in that, described control/communication module comprises the RS485 communication interface that is connected with automatic detection module and host computer.
6. metering program-controlled analog device as claimed in claim 1 is characterized in that, also comprises voltage indicating gauge and electric current indicating gauge; The electric current indicating gauge is connected with the disconnection relay, and the voltage indicating gauge is connected with disconnection relay, pilot lamp and the three phase power power supply of being connected through gauge tap.
7. metering program-controlled analog device as claimed in claim 1, it is characterized in that, the elementary connection control/communication module of described emulation high-voltage secondary current transformer, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase three-wire electric energy meter.
8. metering program-controlled analog device as claimed in claim 1, it is characterized in that, the elementary connection control/communication module of described low-voltage current mutual inductor, disconnection relay, on-load switch, secondary connection disconnects relay, electric current indicating gauge, electric energy meter combined connection box, three-phase and four-line electric energy meter.
9. metering program-controlled analog device as claimed in claim 1 is characterized in that, also comprises timer and voice prompting device, and described timer and voice prompting device all adopt independent single-chip microcomputer, is connected on the device RS485 bus, receives the host computer instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249337 CN202736328U (en) | 2012-05-29 | 2012-05-29 | Metering program control analog device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249337 CN202736328U (en) | 2012-05-29 | 2012-05-29 | Metering program control analog device |
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| CN202736328U true CN202736328U (en) | 2013-02-13 |
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| CN 201220249337 Expired - Fee Related CN202736328U (en) | 2012-05-29 | 2012-05-29 | Metering program control analog device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778829A (en) * | 2014-01-09 | 2014-05-07 | 广西电网公司电力科学研究院 | Electric energy metering transformer secondary voltage drop and load test training system |
| CN103971554A (en) * | 2014-04-29 | 2014-08-06 | 国家电网公司 | Electrified fault detection simulation exercise and check system for electric energy metering device |
| CN105608972A (en) * | 2016-03-24 | 2016-05-25 | 国家电网公司 | Electrical energy measuring transformer simulation training and examination device and system based on Internet |
| CN106935089A (en) * | 2017-04-14 | 2017-07-07 | 辽宁双宜电力电子有限公司 | Power information acquisition terminal installation training system and method |
| CN108230811A (en) * | 2018-03-08 | 2018-06-29 | 广西网冠电气有限公司 | A kind of High-voltage measuring box wiring simulation training system and its operating method |
| CN108447360A (en) * | 2018-03-08 | 2018-08-24 | 广西网冠电气有限公司 | A kind of three-phase three-wire electric energy meter device for simulating false wiring |
| CN111796234A (en) * | 2020-06-28 | 2020-10-20 | 国家电网有限公司 | Non-power-off inspection simulation operation method and system for electric energy metering device |
| CN114252674A (en) * | 2021-12-15 | 2022-03-29 | 中国化学工程第十一建设有限公司 | Secondary wiring detection device and method |
-
2012
- 2012-05-29 CN CN 201220249337 patent/CN202736328U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778829A (en) * | 2014-01-09 | 2014-05-07 | 广西电网公司电力科学研究院 | Electric energy metering transformer secondary voltage drop and load test training system |
| CN103971554A (en) * | 2014-04-29 | 2014-08-06 | 国家电网公司 | Electrified fault detection simulation exercise and check system for electric energy metering device |
| CN103971554B (en) * | 2014-04-29 | 2016-01-20 | 国家电网公司 | Electric power meter fault on-line checking method does simulated exercises and checking system |
| CN105608972A (en) * | 2016-03-24 | 2016-05-25 | 国家电网公司 | Electrical energy measuring transformer simulation training and examination device and system based on Internet |
| CN106935089A (en) * | 2017-04-14 | 2017-07-07 | 辽宁双宜电力电子有限公司 | Power information acquisition terminal installation training system and method |
| CN108230811A (en) * | 2018-03-08 | 2018-06-29 | 广西网冠电气有限公司 | A kind of High-voltage measuring box wiring simulation training system and its operating method |
| CN108447360A (en) * | 2018-03-08 | 2018-08-24 | 广西网冠电气有限公司 | A kind of three-phase three-wire electric energy meter device for simulating false wiring |
| CN111796234A (en) * | 2020-06-28 | 2020-10-20 | 国家电网有限公司 | Non-power-off inspection simulation operation method and system for electric energy metering device |
| CN114252674A (en) * | 2021-12-15 | 2022-03-29 | 中国化学工程第十一建设有限公司 | Secondary wiring detection device and method |
| CN114252674B (en) * | 2021-12-15 | 2023-09-22 | 中国化学工程第十一建设有限公司 | Secondary wiring detection device and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210529 |