CN105489080A - Metering system simulation platform - Google Patents

Metering system simulation platform Download PDF

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Publication number
CN105489080A
CN105489080A CN201610002914.0A CN201610002914A CN105489080A CN 105489080 A CN105489080 A CN 105489080A CN 201610002914 A CN201610002914 A CN 201610002914A CN 105489080 A CN105489080 A CN 105489080A
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CN
China
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electric energy
energy meter
metering
digital
meter
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CN201610002914.0A
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Chinese (zh)
Inventor
丁洋涛
帖蕾
罗慧
龚建原
王俊峰
任晓菲
薛琳
陶士利
朱惠娣
李卫红
杨晓光
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国家电网公司
国网河南省电力公司郑州供电公司
郑州华力信息技术有限公司
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Priority to CN201610002914.0A priority Critical patent/CN105489080A/en
Publication of CN105489080A publication Critical patent/CN105489080A/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00Simulators for teaching or training purposes

Abstract

The invention discloses a metering system simulation platform. The metering system simulation platform includes simulation platforms, a local area network and a control center; at least two simulation platforms are connected with a computer through the local area network and a switch; each simulation platform includes a substation metering simulation device, a metering loop fault wiring device, a low-voltage loop simulation device, a transformer wiring simulation device, a power transformation acquisition simulation device, a low-voltage centralized meter reading simulation device, a digital program control power source and a total control center, wherein the components are in star connection with one another with the total control center adopted as a center, the total control center is connected with the computer through a network cable or a wireless mode, and the total control center is a processor. With the metering system simulation platform of the invention adopted, requirements of the installation, commissioning, detection and maintenance training of a variety of metering devices can be satisfied; and a field operation and control environment can be transferred to an indoor environment, so that field simulation, experiment and training functions in metering work posts can be realized.

Description

Metering system emulation platform

Technical field:

The present invention relates to a kind of emulation platform, particularly relate to a kind of metering system emulation platform.

Background technology:

Along with the progress of science and technology and the change of energy development general layout, the degree of dependence of socio-economic development to electric energy strengthens day by day, rely on present information, communication and control technology develop actively intelligent grid, realize power network development mode to change, become the common choice that International Power industry responds actively Challenges for Future.Following intelligent grid will realize informationization, the intellectuality of operation of power networks and control, to improve energy structure and utilization ratio, meet the various demands of electric power application, improve economy, the safety and reliability of electric power transfer.For realize market respond rapidly, metering fair and accurate, data acquisition in time, service convenient and efficient, structure intelligent grid and power consumer flow of power, information flow, the novel of Business Stream real-time interactive supply electricity consumption relation, meet each aspect of electric power enterprise, each specialty to the active demand of power information, China starts according to unified technical standard and scheme, advances the construction of power information acquisition system with all strength.

Deepening continuously of electricity market reform, the acquisition mode of resident's power information is made also to there occurs larger change, the method of manual metering charge can not adapt to the requirement of modern management, the counting cost by gas meter problem solving mesolow user starts to mention schedule, and remote concentrated copy meter technology becomes the focus of research both at home and abroad.From the nineties in 20th century so far, Utilities Electric Co. needs the acquiring electric energy information system established for dissimilar user according to business development, as: power load management system, client's Electric Energy Acquisition System, low pressure automatic meter reading system and electrical power distribution automatization system etc., for nation-building " greatly marketing " system and intelligent grid overall situation have made place mat well.

The construction of intelligent grid, particularly Novel electricity use information collecting system is universal, cause metering practitioner must promote the level of skill of the related fields such as metering, acquisition system, to adapt to the step of power industry development, but the training platform integrating multiple systems at present is on the market few, metering practitioner is caused to can not get the skills training of very system, adapt to the multiple technical ability of intelligent grid environment next part and skill set requirements all over the body to meet employee, researching and developing the new metering system emulation platform integrating multiple metering collecting system becomes the task of top priority.

In order to make employee adapt to diversification in role as early as possible, meeting the technical requirement of the new function of metering, improving the integrated service quality of crew, be badly in need of the use of a kind of New Training platform for employee's training.Further investigation reveals that, on market, existing product function is comparatively single, and is mostly the emulation training equipment of conventional art, and for entering the new technology in electric-power metering field in recent years, the emulation training of Novel measuring equipment did not have at all.Therefore need to carry out to develop install for meeting the equipment such as intelligent electric energy meter, acquisition terminal, digital electricity meter, debugging, detect, maintenance training, part field manipulation environment is displaced to laboratory so that the multi-functional metering emulation training device of applicable present metrological personnel training of real training simultaneously.

Summary of the invention:

Technical matters to be solved by this invention is: overcome the deficiencies in the prior art, there is provided a kind of and the system ensemble equipment with training is tested under multi-environment to multiple metering outfit, scene manipulation environment is displaced to indoor so that the metering system emulation platform of staff training work expansion simultaneously.

Technical scheme of the present invention is: a kind of metering system emulation platform, comprises emulation platform, LAN (Local Area Network) and control center, and at least two described emulation platforms are connected with computing machine by LAN (Local Area Network), switch; Described emulation platform comprises transformer station metering simulator, measurement loop error connection device, low tension loop simulator, mutual inductor interstar connection simulator, changes electric gathering simulation device, low-voltage collecting meter reading simulator, digital program controlled power supply and mster-control centre, and between centered by mster-control centre, form Y-connection, described mster-control centre by netting twine with or to be wirelessly connected with computing machine, described mster-control centre is processor.

Described digital program controlled power supply comprises consumer unit, power amplifier case and output switching case, and high-tension electricity is connected with output switching device after the process of power amplifier case through consumer unit, and output switching device is provided with output interface, and is connected with mster-control centre by RS232 interface.

Described transformer station metering simulator comprises merge cells, digital electric energy meter, digital electric power meter detecting instrument and transformer station's electric quantity collector, digital electric energy meter, transformer station's electric quantity collector are all connected with mster-control centre with merge cells, transformer station's electric quantity collector is connected with digital electric energy meter and merge cells, digital electric energy meter is connected with digital electric power meter detecting instrument, and merge cells is connected with digital program controlled power supply.

Described digital electric power meter detecting instrument comprises digital signal input/output module, data processing module, human-machine exchange module, Puled input output module and communication module, and between be connected to each other, digital signal input/output module is by optical fiber and merge cells and digital electric power list catenation, and digital electric energy meter is connected with Puled input output module.

Described measurement loop error connection device comprises a-b box, active electric energy meter, reactive energy-meter and communication converter, and a-b box is connected with active electric energy meter, reactive energy-meter, communication converter and digital program controlled power supply, and communication converter is connected with mster-control centre.

Described low tension loop simulator comprises ammeter master switch, fault verification case of visiting one house after another, single-phase intelligent electric energy meter, house lead in air switch and load pilot lamp, ammeter master switch is connected with visit one house after another fault verification case and digital program controlled power supply, fault verification case of visiting one house after another comprises output terminal and input end, at least two shunt are provided with between output terminal and input end, each shunt all sets gradually house lead in air switch and single-phase intelligent electric energy meter by input end to output terminal, and each output terminal is all connected with tunable load case and pilot lamp.

Described mutual inductor interstar connection simulator comprises current transformer, voltage transformer (VT) and three-phase mutual-inductor electric energy meter, current transformer and voltage transformer (VT) are all connected with three-phase mutual-inductor electric energy meter and digital program controlled power supply, and are provided with A.C. contactor between current transformer and digital program controlled power supply.

The electric gathering simulation device of described transformation comprises intelligent electric energy meter, load control terminal and mimic-disconnecting switch, intelligent electric energy meter, load control terminal and digital program controlled power supply are connected to each other, mimic-disconnecting switch is arranged in load control terminal, and load control terminal is connected with mster-control centre.

Described low-voltage collecting meter reading simulator comprises single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter, collector and low-pass filter, low-pass filter one end is connected with digital program controlled power supply, the other end is provided with five road output ports, and do not have road output port to be provided with single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter and collector, single-phase intelligent electric energy meter and single-phase intelligent carrier electric energy meter are provided with pilot lamp, and collector is connected with single-phase intelligent electric energy meter.

The invention has the beneficial effects as follows:

1, the present invention meets the installation of multiple metering outfit, debugging, detection, maintenance training, scene manipulation environment is displaced to indoor so that be applicable to field simulation in present gage work post, experiment and training function simultaneously.

2, the present invention uses for reference computer module design philosophy, using digital program controlled power supply and the LAN (Local Area Network) bus system as whole emulation platform, emulate on-the-spot running environment and the acquisition channel of all kinds of metering outfit thus, using each class emulation training content as a functional module, be articulated in bus system by gauge tap, each functional module can isolated operation, carry out emulation training training, do not interfere with each other, can run together yet, carry out the training of multiple function associative simulation.

3, the present invention adopts digital load power, can provide the high-accuracy voltage of standard, the output of electric current, and has safety protection function, once there is human electric shock, can automatically fall power down pressure, electric current, and send alerting signal, to ensure the safety of equipment use personnel.

4, the present invention is connected to the corresponding power automatic system main website of actual motion by optical fiber private network or GPRS/CDMA wireless public network, at the workstation of each power automatic system, all can look into the real time data of patrolling and collecting each metering outfit on emulation platform, also can carry out length of run operation to metering outfit on emulation platform.

5, the normal work of the present invention in order to prevent high frequency carrier from disturbing digital program controlled power supply, installs low-pass filter in digital program controlled power outlet side, stops high-frequency carrier signal to enter digital program controlled power supply.

6, the present invention possesses the accuracy checking function of digital electricity meter, by field-checking instrument, can realize being combined the synthesis precision audit function of the accuracy checking of unit and merge cells and digital electricity meter, this function is also domesticly to occur on emulation platform first.

7, the present invention possesses the experiment in intelligent substation the digitized measurement loop and site environment emulates and physical quantity is resolved, it not only solves metrological personnel in the face of what understand transmission between merge cells and digital electricity meter is any information, whether the content of information is correct, also by the physical quantity in the measurement loop that parses and data, help, instruct, working condition that training gage work personnel understand this part equipment.

8, the present invention possesses high tension voltage and current transformer V-type and Y wiring emulation, is simulated the metering secondary environment of transformer station and high voltage customer, provide experiment and training function by the mutual inductor of special ratio.

9, the present invention possesses the remote measurement of special transformer terminals, remote control, the emulation of remote signalling and the function such as experiment, training; Possesses the emulation of the low pressure resident electricity multiple carrier module communication modes of extraction system and 485 communication modes.

Accompanying drawing illustrates:

Fig. 1 is the structured flowchart of metering system emulation platform.

Fig. 2 is the structured flowchart of emulation platform.

Fig. 3 is the structured flowchart of transformer station's metering simulator.

Fig. 4 is the structured flowchart of measurement loop error connection device.

Fig. 5 is the structured flowchart of low-voltage collecting meter reading simulator.

Fig. 6 is the structured flowchart of low tension loop simulator.

Embodiment:

Embodiment: see Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6.

Metering system emulation platform, comprises emulation platform, LAN (Local Area Network) and control center, and at least two described emulation platforms are connected with computing machine by LAN (Local Area Network), switch; Emulation platform comprises transformer station metering simulator, measurement loop error connection device, low tension loop simulator, mutual inductor interstar connection simulator, changes electric gathering simulation device, low-voltage collecting meter reading simulator, digital program controlled power supply and mster-control centre, and between centered by mster-control centre, form Y-connection, mster-control centre by netting twine with or to be wirelessly connected with computing machine, mster-control centre is processor.

Digital program controlled power supply comprises consumer unit, power amplifier case and output switching case, and high-tension electricity is connected with output switching device after the process of power amplifier case through consumer unit, and output switching device is provided with output interface, and is connected with mster-control centre by RS232 interface.

Transformer station's metering simulator comprises merge cells, digital electric energy meter, digital electric power meter detecting instrument and transformer station's electric quantity collector, digital electric energy meter, transformer station's electric quantity collector are all connected with mster-control centre with merge cells, transformer station's electric quantity collector is connected with digital electric energy meter and merge cells, digital electric energy meter is connected with digital electric power meter detecting instrument, and merge cells is connected with digital program controlled power supply.

Digital electric power meter detecting instrument comprises digital signal input/output module, data processing module, human-machine exchange module, Puled input output module and communication module, and between be connected to each other, digital signal input/output module is by optical fiber and merge cells and digital electric power list catenation, and digital electric energy meter is connected with Puled input output module.

Measurement loop error connection device comprises a-b box, active electric energy meter, reactive energy-meter and communication converter, and a-b box is connected with active electric energy meter, reactive energy-meter, communication converter and digital program controlled power supply, and communication converter is connected with mster-control centre.

Low tension loop simulator comprises ammeter master switch, fault verification case of visiting one house after another, single-phase intelligent electric energy meter, house lead in air switch and load pilot lamp, ammeter master switch is connected with visit one house after another fault verification case and digital program controlled power supply, fault verification case of visiting one house after another comprises output terminal and input end, at least two shunt are provided with between output terminal and input end, each shunt all sets gradually house lead in air switch and single-phase intelligent electric energy meter by input end to output terminal, and each output terminal is all connected with tunable load case and pilot lamp.

Mutual inductor interstar connection simulator comprises current transformer, voltage transformer (VT) and three-phase mutual-inductor electric energy meter, current transformer and voltage transformer (VT) are all connected with three-phase mutual-inductor electric energy meter and digital program controlled power supply, and are provided with A.C. contactor between current transformer and digital program controlled power supply.

Change electric gathering simulation device and comprise intelligent electric energy meter, load control terminal and mimic-disconnecting switch, intelligent electric energy meter, load control terminal and digital program controlled power supply are connected to each other, mimic-disconnecting switch is arranged in load control terminal, and load control terminal is connected with mster-control centre.

Low-voltage collecting meter reading simulator comprises single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter, collector and low-pass filter, low-pass filter one end is connected with digital program controlled power supply, the other end is provided with five road output ports, and do not have road output port to be provided with single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter and collector, single-phase intelligent electric energy meter and single-phase intelligent carrier electric energy meter are provided with pilot lamp, and collector is connected with single-phase intelligent electric energy meter.

In transformer station's metering simulator: secondary analog voltage, the magnitude of current of the AC module receiving system of (1), merge cells, and by SV output module, digital quantity is transferred to digital electric energy meter by metering special optic fibre, realize electric energy metrical, digital electric energy meter is connected with electric quantity collector by RS-485 mode, realizes electricity teletransmission.

(2), in emulation module, digital electricity meter detecting instrument is added, the SV output quantity of merge cells is first connected to the optical fiber load module of digital electricity meter detecting instrument by optical fiber, by signal repeater, digital signal is forwarded to digital electric energy meter by light signal output module.Resolved by the digital quantity of digital electricity meter detecting instrument, metered voltage in being outputed signal by the SV of merge cells, current signal resolve to analog quantity, showing respectively with the formal intuition of data, waveform and polar plot in digital electricity meter detecting instrument, realize the analysis of metered voltage, current signal, monitoring function.

(3), the pulse of digital electric energy meter is exported the Puled input module being connected to digital electricity meter detecting instrument, digital electricity meter detecting instrument is by the contrast pulse of digital electric energy meter and the digital signal of merge cells, calculate the error that electric energy meter pulse exports, thus realize the accuracy detection of digital electric energy meter at the scene under real load condition.And examining report can be exported with report form, be kept in digital electricity meter detecting instrument or output to external USB flash disk.

(4), the light signal output module of digital electricity meter detecting instrument according to the artificial voltage, electric current and the phase angle signal that arrange, export the message meeting IEC61850 standard, access digital electric energy meter.By the detection scheme set, the digital electric power meter accuracy under different voltage, current condition can be detected in laboratory environments.

(5), digital electric energy meter detecting instrument passes through pulse output module, the light signal received is converted to high-frequency impulse, this pulse signal is connected to traditional electric energy meter on-site calibrator, voltage, the current-mode analog quantity of the input of tradition powermeter verification instrumeter sampling merge cells, thus realize the function using field electric energy table tester verification merge cells precision.

In measurement loop error connection device: power supply is three-phase supply, the phase place of every phase and amplitude can control separately, when exporting the different modes of connection, voltage, current amplitude and the phase place under this way of output is calculated by PC, control power supply exports, the voltage of power supply exports as three-phase isolation and amplifier type, selects to carry out different earth terminals; The functional module that a-b box has been then voltage, the disconnected phase, ground connection, short circuit, misphase etc. of electric current operate; Active electric energy meter and reactive energy-meter are arranged, to carry out various operation for simulated field wiring.

Mutual inductor interstar connection simulator: running environment (the voltage 0-380V of high pressure through mutual-inductor electric energy meter can be emulated; electric current 0-100A); A.C. contactor plays the effect of conversion big current; the safety of better other modules of protection, current transformer adopts 100/5A, 0.5 grade of punch current transfomer; altitude simulation is on-the-spot; voltage transformer (VT) adopts 380/100V no-load voltage ratio, can realize V-type connection, can realize wye connection again.

Change electric gathering simulation device: (1), be that three-phase and four-line (also can phase three-wire three by digital program controlled power supply, depending on connect electric energy meter) electric energy meter and load collection terminal provide operating voltage, programmable power supply can also export the electric current of specifying size simultaneously, be used for driving intelligent electric energy meter to carry out electric energy metrical, simulation specially becomes electric power meter.

(2), load control terminal by 485 lines and intelligent electric energy meter communication, timing acquiring electric energy meter freeze electricity, and the electric energy information collected is uploaded to mster-control centre and computing machine, completes electricity teletransmission.

(3), the instruction assigned of load control terminal receiving computer and mster-control centre, and carry out spatial load forecasting according to the instruction of power information acquisition system main website, trip signal sent to isolating switch, sends warning message by audible-visual annunciator simultaneously.

(4) when, to emulation platform, specially change electric energy meter carries out trip remotely and closes a floodgate, secret key can be called by power utilization information collection system main website, computing machine wireless public network channel issues encrypted instruction to load control terminal, secret key is transmitted to intelligent electric energy meter by 485 lines after resolving by load control terminal, thus complete tripping operation, the closing function of the electric energy meter to the unified encryption of state's net, thus realize power control, Payment control function.

In low-voltage collecting meter reading simulator: (1), provide operating voltage and working current for single-phase electric energy meter by digital program controlled power supply, be used for simulating the electric power meter of low-voltage customer.

(2), collector by RS-485 line wherein single-phase intelligent electric energy meter connect; Communication is carried out by low pressure carrier wave mode and other single-phase carrier electric energy meter.

(3), collector freezes electricity according to configuration information timing acquiring electric energy meter, and the electric energy information collected is uploaded to mster-control centre and computing machine, completes electricity teletransmission.

(4), undertaken carrying out remote meter reading to this emulation platform by inner net computer, power information main website assigns to this emulation platform order of checking meter according to user instruction, after collector receives instruction according to different table addresses choose 485 or carrier system complete and check meter, and amr message is uploaded to computing machine.

(5), single-phase electric energy meter trips and reclosing operation needs private key, therefore can only assign long-range reclosing operation by power information main website; When power information main website receives the instruction to this emulation platform single-phase electric energy meter trip remotely and reclosing, main website transfers key according to by tripping operation table address from key database, then through public network channel, encrypted instruction is issued to collector, secret key is transmitted to intelligent electric energy meter by 485 lines or high frequency carrier after resolving by collector end, thus complete tripping operation, the closing function of the electric energy meter to the unified encryption of state's net, thus realize Payment control function.

In digital program controlled power supply: Waveform composition module adopts digital wave synthesize to ensure the stability that power supply exports; The effect of amplifying output power is played in power amplification, to meet the demand of different capacity; Output switching is used for exporting multiple range, with the multiple range demand in satisfied scene; Contacted by mster-control centre and computing machine, coordinate, thus ensure that the reliability and stability of power supply.

The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (9)

1. a metering system emulation platform, comprises emulation platform, LAN (Local Area Network) and control center, it is characterized in that: at least two described emulation platforms are connected with computing machine by LAN (Local Area Network), switch; Described emulation platform comprises transformer station metering simulator, measurement loop error connection device, low tension loop simulator, mutual inductor interstar connection simulator, changes electric gathering simulation device, low-voltage collecting meter reading simulator, digital program controlled power supply and mster-control centre, and between centered by mster-control centre, form Y-connection, described mster-control centre by netting twine with or to be wirelessly connected with computing machine, described mster-control centre is processor.
2. metering system emulation platform according to claim 1, it is characterized in that: described digital program controlled power supply comprises consumer unit, power amplifier case and output switching case, high-tension electricity is connected with output switching device after the process of power amplifier case through consumer unit, output switching device is provided with output interface, and is connected with mster-control centre by RS232 interface.
3. metering system emulation platform according to claim 1, it is characterized in that: described transformer station metering simulator comprises merge cells, digital electric energy meter, digital electric power meter detecting instrument and transformer station's electric quantity collector, digital electric energy meter, transformer station's electric quantity collector are all connected with mster-control centre with merge cells, transformer station's electric quantity collector is connected with digital electric energy meter and merge cells, digital electric energy meter is connected with digital electric power meter detecting instrument, and merge cells is connected with digital program controlled power supply.
4. metering system emulation platform according to claim 3, it is characterized in that: described digital electric power meter detecting instrument comprises digital signal input/output module, data processing module, human-machine exchange module, Puled input output module and communication module, and between be connected to each other, digital signal input/output module is by optical fiber and merge cells and digital electric power list catenation, and digital electric energy meter is connected with Puled input output module.
5. metering system emulation platform according to claim 1, it is characterized in that: described measurement loop error connection device comprises a-b box, active electric energy meter, reactive energy-meter and communication converter, a-b box is connected with active electric energy meter, reactive energy-meter, communication converter and digital program controlled power supply, and communication converter is connected with mster-control centre.
6. metering system emulation platform according to claim 1, it is characterized in that: described low tension loop simulator comprises ammeter master switch, to visit one house after another fault verification case, single-phase intelligent electric energy meter, house lead in air switch and load pilot lamp, ammeter master switch is connected with visit one house after another fault verification case and digital program controlled power supply, fault verification case of visiting one house after another comprises output terminal and input end, at least two shunt are provided with between output terminal and input end, each shunt all sets gradually house lead in air switch and single-phase intelligent electric energy meter by input end to output terminal, each output terminal is all connected with tunable load case and pilot lamp.
7. metering system emulation platform according to claim 1, it is characterized in that: described mutual inductor interstar connection simulator comprises current transformer, voltage transformer (VT) and three-phase mutual-inductor electric energy meter, current transformer and voltage transformer (VT) are all connected with three-phase mutual-inductor electric energy meter and digital program controlled power supply, and are provided with A.C. contactor between current transformer and digital program controlled power supply.
8. metering system emulation platform according to claim 1, it is characterized in that: the electric gathering simulation device of described transformation comprises intelligent electric energy meter, load control terminal and mimic-disconnecting switch, intelligent electric energy meter, load control terminal and digital program controlled power supply are connected to each other, mimic-disconnecting switch is arranged in load control terminal, and load control terminal is connected with mster-control centre.
9. metering system emulation platform according to claim 1, it is characterized in that: described low-voltage collecting meter reading simulator comprises single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter, collector and low-pass filter, low-pass filter one end is connected with digital program controlled power supply, the other end is provided with five road output ports, and do not have road output port to be provided with single-phase intelligent electric energy meter, single-phase intelligent carrier electric energy meter and collector, single-phase intelligent electric energy meter and single-phase intelligent carrier electric energy meter are provided with pilot lamp, and collector is connected with single-phase intelligent electric energy meter.
CN201610002914.0A 2016-01-06 2016-01-06 Metering system simulation platform CN105489080A (en)

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CN110310538A (en) * 2019-06-28 2019-10-08 广西电网有限责任公司桂林供电局 A kind of power supply comprehensive training platform

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