CN207318702U - Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis - Google Patents
Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis Download PDFInfo
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- CN207318702U CN207318702U CN201721501439.8U CN201721501439U CN207318702U CN 207318702 U CN207318702 U CN 207318702U CN 201721501439 U CN201721501439 U CN 201721501439U CN 207318702 U CN207318702 U CN 207318702U
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Abstract
The utility model discloses a kind of electric energy meter calibrating apparatus for possessing and carrying out fault diagnosis and analysis, mainly including computer, three-phase electric energy meter device stage body and parallel communication unit；Error instrument, standard electric energy meter, standard time clock instrument, three-phase program-controlled signal source, power amplifier module and intelligent fault judgment module are provided with three-phase electric energy meter device stage body；Intelligent fault judgment module includes current open detection unit, temperature monitoring Alarm Unit.Compared with prior art, the utility model electric energy meter calibrating apparatus possesses current loop temperature monitoring, the detection of current loop open circuit, the function of parallel communication module failure positioning, can be with expliciting the position to failure epitope, convenient and practical personnel's rapidly removing faults.The analysis of error, communication packet when before the utility model detection by electric energy meter electric energy error, day timing, can quickly judge the failure of epitope auxiliary terminal, prompt reviewer's timely processing, effectively avoid the generation of flase drop.
Description
Technical field
The utility model belongs to electric energy meter calibration technical field, more particularly to a kind of electricity for possessing progress fault diagnosis and analysis
Can table calibrating installation.
Background technology
With the raising of operation of power networks quality, the function of intelligent electric energy meter is more and more, for electric energy meter calibrating apparatus
It is required that also higher and higher, the project that electric energy meter calibration personnel need to examine and determine tends to complicate.In daily verification process, testing person
Can inevitably unusual condition be run into and stop to examine and determine, for example 485 Communications failure of electric energy meter, gauging error can not rise without display, electric current
Rise etc., in these unusual conditions, some are that calibrating installation failure itself causes, some are that maloperation causes, these can give operation
Personnel cause certain puzzlement, but feeding back to producer's processing needs to spend more time, so as to cause delaying for verification task.Separately
Outside, according to the requirement of peace wind system, calibration operation risk point is recognized there are some security risks, although having formulated corresponding solution
Measure, but timely and effectively remind and instruct due to lacking, easily it is ignored, such as the wiring of on-line checking method pulse signal, device
Being not turned off just direct adjustment wiring etc. has the operation of electric shock risk.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of electric energy meter calibration for possessing and carrying out fault diagnosis and analysis
Device, to realize intelligent recognition and judge the failure in verification process, and the solution method for providing malfunction elimination is guided and operation
Safety instruction, achievees the purpose that quickly to investigate verification process failure.
To solve the above problems, the utility model uses following technical scheme：
Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, mainly including computer, three-phase electric energy meter charging floor
Body and parallel communication unit；Error instrument, standard electric energy meter, standard time clock instrument, three-phase are provided with three-phase electric energy meter device stage body
Programme-controlled signal source, power amplifier module and intelligent fault judgment module；Intelligent fault judgment module includes current open detection unit, temperature
Degree monitoring Alarm Unit；Error instrument, standard electric energy meter, standard time clock instrument, three-phase program-controlled signal source using RS485 communication modes with
Parallel communication unit connects, and parallel communication unit is attached using NET network communication modes with computer；Current open detects
Unit and temperature monitoring Alarm Unit are connected and are controlled by it with error instrument.
Three-phase electric energy meter device stage body is 24 epitope device of three-phase, and each epitope is returned with independent voltage interface and electric current
Road.
Current open detection unit has open detection circuit and short circuit relay, and open detection circuit connects through three-phase gauge stand
Connect three-phase short circuit relay.
Temperature monitoring Alarm Unit is that digital temperature sensor is installed on gauge stand current loop connection terminal, is passed through
The data cable of error instrument and sensor communicates, and reads current loop connection terminal temperature and is monitored alarm.
Parallel communication unit includes serial port server and its multichannel RS232-RS485 modular converters, the carrier wave of connection are copied
Control device, infrared copy and accept device, RS232 interface.
For electric energy meter calibration there are the problem of, inventor design and made it is a kind of possess carry out fault diagnosis and analysis
Electric energy meter calibrating apparatus, mainly including computer, three-phase electric energy meter device stage body and parallel communication unit；Three-phase electric energy meter apparatus
Error instrument, standard electric energy meter, standard time clock instrument, three-phase program-controlled signal source, power amplifier module and intelligent fault is provided with stage body to sentence
Disconnected module；Intelligent fault judgment module includes current open detection unit, temperature monitoring Alarm Unit；Error instrument, standard electric energy
Table, standard time clock instrument, three-phase program-controlled signal source are connected using RS485 communication modes with parallel communication unit, parallel communication unit
It is attached using NET network communication modes with computer；Current open detection unit and temperature monitoring Alarm Unit and error
Instrument is connected and is controlled by it.
Three-phase program-controlled signal source and power amplifier module are used to export corresponding voltage, electric current, power factor, simulation to electric energy meter
Load of different nature；Standard electric energy meter you can well imagine as standard scores with standard time clock instrument and supply standard electrical energy pulse and standard time clock arteries and veins
Punching is used for compared with the pulse of tested electric energy meter；Error instrument is responsible for receiving electric energy, clock pulses and the standard arteries and veins of electric energy meter
Punching is compared, calculation error；Parallel communication unit exchanges communication carrier as the message information of modules, can carry out
The communication of the various ways such as RS485, carrier wave, infrared, RS232, coupled computer and application software send/connect to each communication
Receiving text records and analyzes, and judges electric energy meter communication failure, completes the communication test to electric energy meter；Temperature monitoring Alarm Unit leads to
Excess temperature sensor is monitored the real time temperature of electric energy meter current binding post, avoids because overheat causes meter shell of electric energy meter to burn
It is bad；Intelligent fault judgment module detection electric energy meter current circuit, can avoid single electric energy meter current failure from causing three-phase program-controlled to be believed
Number source protection and can not work.
When the prior art is run into epitope current open the problems such as, device, which will be protected, to work on, and be opened in investigation
During road can not fast positioning, it is necessary to operating personnel search one by one, it is very time-consuming；And the protection to electric energy meter also lacks means,
When auxiliary terminal contact is bad, also it is easy to be ignored and flase drop.Compared with prior art, the utility model electric energy meter calibration
Device possesses current loop temperature monitoring, the detection of current loop open circuit, the function of parallel communication module failure positioning, can be clear and definite
Navigate to failure epitope, convenient and practical personnel's rapidly removing faults.The utility model detection before by electric energy meter electric energy error,
The analysis of error, communication packet during day timing, can quickly judge the failure of epitope auxiliary terminal, prompt reviewer to locate in time
Reason, effectively avoids the generation of flase drop.
Brief description of the drawings
Fig. 1 is the module connection block diagram that the utility model possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, is schemed
In：11 computers, 12 parallel communication units, 13 current open detection units, 14 temperature monitoring Alarm Units, 15 error instrument, 16
Standard electric energy meter, 17 standard time clock instrument, 18 three-phase program-controlled signal sources, 19 power amplifier modules, 1A device stage bodies, 1B electric energy meters.
Fig. 2 is that the utility model possesses current open detection list in the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis
Member, the circuit diagram of temperature monitoring Alarm Unit, in figure：21 error instrument, 22 temperature sensors, 23 short circuit relays, 24 gauge stands, 25
Open detection circuit.
Fig. 3 is the module connection block diagram of parallel communication unit, in figure：31 serial port servers, 32 multichannel RS232-RS485
Modular converter, 33 carrier wave copy controllers, 34 it is infrared copy and accept device, 35RS232 interfaces, 36 computers, 37 electric energy meters, 38 calibrating installations its
His part.
Embodiment
First, basic structure
As shown in Figure 1 to Figure 3, the utility model possess carry out fault diagnosis and analysis electric energy meter calibrating apparatus, possess into
The electric energy meter calibrating apparatus of row fault diagnosis and analysis, mainly including computer, three-phase electric energy meter device stage body and parallel communication list
First (parallel communication interchanger)；Error instrument, standard electric energy meter, standard time clock instrument, three are provided with three-phase electric energy meter device stage body
Phase programme-controlled signal source, power amplifier module and intelligent fault judgment module；Intelligent fault judgment module include current open detection unit,
Temperature monitoring Alarm Unit；Error instrument, standard electric energy meter, standard time clock instrument, three-phase program-controlled signal source use RS485 communication modes
It is connected with parallel communication unit, parallel communication unit is attached using NET network communication modes with computer；Current open is examined
Survey unit and temperature monitoring Alarm Unit is connected and is controlled by it with error instrument.Wherein,
Three-phase electric energy meter device stage body is 24 epitope device of three-phase, and each epitope is returned with independent voltage interface and electric current
Road.
Current open detection unit has open detection circuit and short circuit relay, and open detection circuit connects through three-phase gauge stand
Connect three-phase short circuit relay.
Temperature monitoring Alarm Unit is that digital temperature sensor is installed on gauge stand current loop connection terminal, is passed through
The data cable of error instrument and sensor communicates, and reads current loop connection terminal temperature and is monitored alarm.
Parallel communication unit includes the multichannel RS232-RS485 modular converters (device) of serial port server and its connection, carries
Ripple copy controller, infrared copy and accept device, RS232 interface.
2nd, function
Computer carries out 485, carrier wave, infrared communication by parallel communication unit and the other components of device and tested electric energy meter
(can differentiate whether each communication port of electric energy meter is normal by analyzing communication frames), controls three-phase program-controlled signal source and power amplifier module
Voltage, electric current and the power factor of setting are exported, control error instrument carries out every calibrating and breakdown judge, coupled computer are soft
Part, sends/receives message accounting analysis to each communication, so as to carry out intelligent trouble analysis and prompting.
Three-phase electric energy meter device stage body is used to place electric energy meter, there is provided the voltage and current circuit of electric energy meter and various signals draw
Line.
The control signal input and consequential signal output of open detection circuit are connected to the I/O mouths of error instrument, thus error instrument
Can control detection rise and stop, can also obtain testing result, testing result is also delivered to error instrument by logical signal.Error
The I/O mouths of instrument also control short circuit relay, and when detecting open circuit, error instrument automatically controls bypass relay short circuit, short circuit
Relay can carry out current loop to abnormal epitope and carry out short circuit, even if there is the electric energy meter of open circuit, device can also work normally.Cause
This, current open detection unit can both be detected epitope current open, and whether detection electric energy meter current circuit opens a way, also right
The current loop of abnormal epitope carries out automatic short circuit, avoids the open circuit of single epitope from causing the current open of device entirety to cause nothing
The phenomenon of method work.
Temperature sensor is used for the real time temperature for measuring current terminal, its connection to error instrument, can pass temperature
Give error instrument.When detecting, it is detected electric energy meter to be installed on gauge stand, passes through the conduction of copper metal terminal, the temperature of gauge stand terminal
Spend the temperature of very close energy meter terminal.
The temperature monitoring value of temperature monitoring Alarm Unit can be set according to actual conditions, when actual temperature exceedes setting value
When, bypass relay in epitope can be controlled to carry out short circuit to the epitope current loop, shunt electric current in table, avoid temperature after
Height of continuing rising.
Parallel communication unit has the multiple communication modes such as RS232, RS485, carrier wave, and each component of device can be communicated
Control, realize electric energy meter 485 parallel communication of multi-epitope, and the communication packet of parallel communication unit is ultimately delivered to computer, matches somebody with somebody
Close computer and each communication is sent/received message accounting analysis, judge the failure of electric energy meter order circuit and examined and determine
Failure caused by electric energy meter operation exception in journey.
Standard electric energy meter has the function of to measure device real output value, and computer reads the survey of standard electric energy meter
Value is compared with the voltage, electric current and power factor that set, with judgment means voltage protection, current protection, electric voltage exception, electric current
The failures such as abnormal, angle exception, make rational instruction.
The electrical energy pulse of the tested electric energy meter of error instrument collection and standard electric energy meter calculates electric energy error, gathers tested electric energy meter
Error of time of day is calculated with the clock pulses of standard time clock instrument.Before items test starts, computer controls error instrument with 1
Checklist pulse is the quick measurement electric energy error in interval and error of time of day, can be with according to the test result read from error instrument
Effectively judge the auxiliary terminal of electric energy meter either with or without effective connection.The situation of folder or wrong folder is leaked for some pressure-wires, also can root
Judged according to error amount and prompted.
3rd, application method
Before all tests, the temperature limit of setting is issued error instrument by computer by communication instruction, in test process
Middle error instrument constantly reads the real time temperature of epitope current terminal from temperature sensor, once temperature exceedes setting value, error instrument
Short circuit relay short circuit is controlled, to reduce the electric current that ammeter flows through, prevents constant temperature from rising and damaging electric energy meter.
When carrying out current open detection, computer issues a command to error instrument and starts to test, the open circuit detection of error instrument control system
Circuit is detected, and testing result feeds back to error instrument, and computer can read testing result from error instrument, and according to result to finger
Abnormal epitope is shown.
To sum up, the error testing that the utility model can be carried out by national verification regulatory requirements works, also with verification process
In alarm, the ability of most common failure intelligent positioning are monitored to current loop temperature, improve electric energy meter calibration quality and
Efficiency, has saved man-hour, improves the security of testing person.
Claims (5)
1. a kind of possess the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, it is characterised in that mainly including computer, three-phase
Electric energy meter device stage body and parallel communication unit；Error instrument, standard electric energy meter, standard are provided with the three-phase energy meter meter platform
Clock instrument, three-phase program-controlled signal source, power amplifier module and intelligent fault judgment module；The intelligent fault judgment module includes electric current
Open circuit detection unit, temperature monitoring Alarm Unit；The error instrument, standard electric energy meter, standard time clock instrument, three-phase program-controlled signal source
Be connected using RS485 communication modes with parallel communication unit, parallel communication unit using NET network communication modes and computer into
Row connection；The current open detection unit and temperature monitoring Alarm Unit are connected and are controlled by it with error instrument.
2. according to claim 1 possess the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, it is characterised in that：It is described
Three-phase electric energy meter device stage body is 24 epitope device of three-phase, and each epitope has independent voltage interface and current loop.
3. according to claim 1 possess the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, it is characterised in that：It is described
Current open detection unit has open detection circuit and short circuit relay, and open detection circuit is short through three-phase gauge stand connection three-phase
Contact relay.
4. according to claim 1 possess the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, it is characterised in that：It is described
Temperature monitoring Alarm Unit be by digital temperature sensor be installed on gauge stand current loop connection terminal on, by error instrument with
The data cable communication of sensor, reads current loop connection terminal temperature and is monitored alarm.
5. according to claim 1 possess the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis, it is characterised in that：It is described
Parallel communication unit includes the multichannel RS232-RS485 modular converters of serial port server and its connection, carrier wave copy controller, infrared
Copy and accept device, RS232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501439.8U CN207318702U (en) | 2017-11-13 | 2017-11-13 | Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501439.8U CN207318702U (en) | 2017-11-13 | 2017-11-13 | Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318702U true CN207318702U (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721501439.8U Active CN207318702U (en) | 2017-11-13 | 2017-11-13 | Possesses the electric energy meter calibrating apparatus for carrying out fault diagnosis and analysis |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957385A (en) * | 2018-08-15 | 2018-12-07 | 广东电网有限责任公司 | A kind of electric energy measuring equipment automatic calibration line exception epitope confirmation method and device |
| CN112414568A (en) * | 2020-11-03 | 2021-02-26 | 国网山东省电力公司电力科学研究院 | Temperature rise monitoring system and monitoring method for electric energy meter calibrating device |
| CN112816934A (en) * | 2021-03-01 | 2021-05-18 | 云南电网有限责任公司电力科学研究院 | Method and system for judging error self-monitoring accuracy and timeliness of electric energy meter |
| CN114859283A (en) * | 2022-05-09 | 2022-08-05 | 国网山东省电力公司营销服务中心(计量中心) | System and method for testing full performance of measuring unit |
-
2017
- 2017-11-13 CN CN201721501439.8U patent/CN207318702U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957385A (en) * | 2018-08-15 | 2018-12-07 | 广东电网有限责任公司 | A kind of electric energy measuring equipment automatic calibration line exception epitope confirmation method and device |
| CN108957385B (en) * | 2018-08-15 | 2020-07-03 | 广东电网有限责任公司 | Method and device for confirming abnormal epitope of automatic verification line of electric energy metering equipment |
| CN112414568A (en) * | 2020-11-03 | 2021-02-26 | 国网山东省电力公司电力科学研究院 | Temperature rise monitoring system and monitoring method for electric energy meter calibrating device |
| CN112816934A (en) * | 2021-03-01 | 2021-05-18 | 云南电网有限责任公司电力科学研究院 | Method and system for judging error self-monitoring accuracy and timeliness of electric energy meter |
| CN114859283A (en) * | 2022-05-09 | 2022-08-05 | 国网山东省电力公司营销服务中心(计量中心) | System and method for testing full performance of measuring unit |
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