CN109188329A - A kind of portable phase voltammetric meter functional check instrument - Google Patents
A kind of portable phase voltammetric meter functional check instrument Download PDFInfo
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- CN109188329A CN109188329A CN201810983154.5A CN201810983154A CN109188329A CN 109188329 A CN109188329 A CN 109188329A CN 201810983154 A CN201810983154 A CN 201810983154A CN 109188329 A CN109188329 A CN 109188329A
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- module
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- voltammetric meter
- voltage
- phase voltammetric
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of portable phase voltammetric meter functional check instrument, including power module, control module, simple sinusoidal alternating current inverter module and display module；The present invention is small in size, it is light-weight, it can directly be battery powered, with flexibility and simplicity, it can carry at any time to working site and carry out operation, can quickly and accurately complete the comparison inspection of the phase, electric current, voltage measurement function of phase voltammetric meter, price is inexpensively, it realizes the inspection of phase voltammetric meter on-the-spot testing, improves onsite acceptance working efficiency, promote economic benefit.
Description
Technical field
The present invention relates to power domains, more particularly to a kind of portable phase voltammetric meter functional check instrument.
Background technique
Major network and user measure O&M teams and groups during metering device examination, troubleshooting at present, carry out metering two
The analysis of minor loop on-load wiring correctness is both needed to using phase voltammetric meter.Due at present irregular not with phase voltammetric meter quality
Together, although it is annual all can inspection, the still inaccurate problem of phase place reading frequent occurrence in use process, occurs this at the scene
Can not judge that measuring equipment is operating abnormally or the reason of phase voltammetric meter itself when situation, need to take spare phase voltammetric meter into
Row is compared or will be reused after the urgent inspection of instrument again, causes biggish puzzlement to work, and carry out to phase voltammetric meter
When function accuracy checks, the verification stage body of phase adjusting function is generally required using large-scale desk-top calibration equipment or has, these
Equipment is not only expensive, but also weight is up to 50kg to 100kg, moves by manpower relatively difficult, unlikely takes work to
Scene uses, so that whole instrument cost, cost of labor are all higher, and inefficiency.
Summary of the invention
Inspection apparatus in order to solve phase voltammetric meter in the prior art is expensive, weight too big, flexibility difference etc. no
Foot, the present invention provides a kind of portable phase voltammetric meter functional check instrument.
To realize the above goal of the invention, the technical solution adopted is that:
A kind of portable phase voltammetric meter functional check instrument, including power module, control module, simple sinusoidal alternating current inverter module
And display module；Power module is connect with control module, and control module and display module, simple sinusoidal alternating current inverter module connect
It connects；The input terminal of the voltage and current measurement module of simple sinusoidal alternating current inverter module and phase voltammetric meter connects, voltage and electricity
The output end of flow measurement module is connect with control module.Power module generates AC100V voltage and is used for simple sinusoidal alternating current inversion
Module and control module are powered, while control module generates SPWM signal and transmits the signal to sinusoidal ac electricity
Inverter module is flowed, simple sinusoidal alternating current inverter module is according to SPWM signal output phase, the adjustable alternating current of amplitude；Power supply mould
The electric current that AC100V voltage caused by block and simple sinusoidal alternating current inverter module generate enters the voltage of volt-ampere phase meter simultaneously
And current measurement module.Volt-ampere phase meter measures acquisition by voltage, electric current of the voltage and current measurement module to input,
And the current voltage collected, electric current and corresponding phase angle are shown by display module.By phase volt-ampere
The data that table is shown are compared with the voltage of input, current data, if the two unanimously if judge that phase voltammetric meter is in normal
Otherwise state determines that phase voltammetric meter is in abnormality.
Preferably, the power module includes commercial power interface, battery charging module, battery pack, pure sine wave inverter
And switch power module, commercial power interface pass sequentially through battery charging module, battery pack, pure sine wave inverter and Switching Power Supply mould
Block connection, switch power module are connect with control module；Commercial power interface is responsible for introducing electric current from power grid, is charged mould by battery
Block is battery pack charging, and pure sine wave inverter is used to carry out the voltage and current measurement module of phase voltammetric meter and its inside
Power supply, switch power module are responsible for CPU control module for being powered.
Preferably, the battery pack uses lithium battery group, and lithium battery energy density is big, and average output voltage is high.From putting
Electricity is small, is conducive to the service life for improving device.
Preferably, the control module uses microprocessor.
Preferably, the commercial power interface is connect by switching voltage conversion module with battery charging module.Switching voltage turns
Alternating voltage can be converted DC voltage by mold changing block.
Preferably, the front end of the battery pack is provided with over-charging of battery protection circuit, and over-charging of battery protects circuit and battery
Charging module connection, the rear end of the battery pack is provided with battery over-discharge protection circuit, battery over-discharge protection circuit and pure sinusoid
The connection of wave inverter.The setting of overcharge protection circuit and over-discharge protection circuit can be improved the service life of equipment.
Preferably, the battery over-discharge protection circuit is connect by voltage boosting and stabilizing circuit with pure sine wave inverter, is risen
The fidelity factor of signal can be improved in the presence of pressure voltage regulator circuit.
Preferably, the display module is liquid crystal display.
The specific work process of above system is as follows:
The AC220V power supply that commercial power interface in power module is introduced from power grid, is converted to DC voltage by switching voltage
Afterwards, input power charges to lithium battery group by charging circuit.Lithium battery group exports front end and has by overcharge protection circuit,
Rear end is provided with battery over-discharge protection circuit, and voltage is supplied to pure by lithium battery group output voltage by a voltage boosting and stabilizing circuit
Sinewave inverter, pure sine wave inverter inverter output AC voltage.
Power module generates AC100V voltage and is used to be powered to simple sinusoidal alternating current inverter module and control module,
Control module generates SPWM signal and transmits the signal to sinusoidal ac current inversion module simultaneously, and simple sinusoidal alternating current is inverse
Become module according to SPWM signal output phase, the adjustable alternating current of amplitude；AC100V voltage caused by power module with just
The electric current that string alternating current inverter module generates enters the voltage and current measurement module of volt-ampere phase meter simultaneously.Volt-ampere phase meter
Measure acquisition by voltage, electric current of the voltage and current measurement module to input, and by the current voltage collected,
Electric current and corresponding phase angle are shown by display module.The voltage of data and input that phase voltammetric meter is shown,
Current data is compared, if the two unanimously if judge that phase voltammetric meter is in normal condition, otherwise determine phase voltammetric meter at
In abnormality.
Compared with prior art, the beneficial effects of the present invention are:
The present invention connect with universal circuit using existing general battery module, light-weight with small in size, can
It is directly battery powered, there is flexibility and simplicity, can carry at any time to working site and carry out operation, improve work
Make efficiency and saves time cost.
The present invention exports the voltage and current of adjustable phase as standard source so as to site inspection volt-ampere phase
Table performance indicator can quickly and accurately complete the comparison inspection of the phase, electric current, voltage measurement function of phase voltammetric meter,
Inexpensively, while lighter in weight is convenient for carrying price, realizes the inspection of phase voltammetric meter on-the-spot testing, improves onsite acceptance work
Make efficiency, promotes economic benefit.
Detailed description of the invention
Fig. 1 is the structural block diagram of this system.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, a kind of portable phase voltammetric meter functional check instrument, including power module, control module, sinusoidal ac
Flow inverter module and display module；Power module is connect with control module, and control module and display module, simple sinusoidal alternating current are inverse
Become module connection；The input terminal of the voltage and current measurement module of simple sinusoidal alternating current inverter module and phase voltammetric meter connects,
The output end of voltage and current measurement module is connect with control module.Power module generates AC100V voltage and is used for simple alternating current
Current inversion module and control module are powered, while control module generates SPWM signal and transmits the signal to sine
AC current inverter module, simple sinusoidal alternating current inverter module is according to SPWM signal output phase, the adjustable alternating current of amplitude
Stream；The electric current that AC100V voltage caused by power module and simple sinusoidal alternating current inverter module generate enters volt-ampere phase simultaneously
The voltage and current measurement module of table.Volt-ampere phase meter is carried out by voltage, electric current of the voltage and current measurement module to input
Measurement acquisition, and the current voltage collected, electric current and corresponding phase angle are shown by display module.It will
The data that phase voltammetric meter is shown are compared with the voltage of input, current data, if the two unanimously if judge phase voltammetric meter
In normal condition, otherwise determine that phase voltammetric meter is in abnormality.
Preferably, the power module includes commercial power interface, battery charging module, battery pack, pure sine wave inverter
And switch power module, commercial power interface pass sequentially through battery charging module, battery pack, pure sine wave inverter and Switching Power Supply mould
Block connection, switch power module are connect with control module；Commercial power interface is responsible for introducing electric current from power grid, is charged mould by battery
Block is battery pack charging, and pure sine wave inverter is used to carry out the voltage and current measurement module of phase voltammetric meter and its inside
Power supply, switch power module are responsible for CPU control module for being powered.
Preferably, the battery pack uses lithium battery group, and lithium battery energy density is big, and average output voltage is high.From putting
Electricity is small, is conducive to the service life for improving device.
Preferably, the control module uses microprocessor.
Preferably, the commercial power interface is connect by switching voltage conversion module with battery charging module.Switching voltage turns
Alternating voltage can be converted DC voltage by mold changing block.
Preferably, the front end of the battery pack is provided with over-charging of battery protection circuit, and over-charging of battery protects circuit and battery
Charging module connection, the rear end of the battery pack is provided with battery over-discharge protection circuit, battery over-discharge protection circuit and pure sinusoid
The connection of wave inverter.The setting of overcharge protection circuit and over-discharge protection circuit can be improved the service life of equipment.
Preferably, the battery over-discharge protection circuit is connect by voltage boosting and stabilizing circuit with pure sine wave inverter, is risen
The fidelity factor of signal can be improved in the presence of pressure voltage regulator circuit.
Preferably, the display module is liquid crystal display.
The specific work process of above system is as follows:
The AC220V power supply that commercial power interface in power module is introduced from power grid is converted to 12.6V direct current by switching voltage
After voltage, input power charges to lithium battery group by charging circuit.Lithium battery group output front end has by overcharging protection
Circuit, rear end are provided with battery over-discharge protection circuit, and lithium battery group output voltage generates 12V's by a voltage boosting and stabilizing circuit
Power supply simultaneously provides power to pure sine wave inverter, pure sine wave inverter output AC voltage AC100V.
Microprocessor generates a SPWM signal and is transferred in simple sinusoidal alternating current inverter module, which can be right
Simple sinusoidal alternating current inverter module is controlled, and simple sinusoidal alternating current inverter module generates phase, the adjustable alternating current of amplitude；
The electric current that AC100V voltage caused by power module and simple sinusoidal alternating current inverter module generate enters volt-ampere phase meter simultaneously
And the measurement module of instrument.Instrument shows current voltage, electric current and right in liquid crystal display by voltage and current measurement module
The phase angle answered.The data that phase voltammetric meter measurement obtains are compared, if the two unanimously if judge at phase voltammetric meter
In normal condition, otherwise determine that phase voltammetric meter is in abnormality.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (8)
1. a kind of portable phase voltammetric meter functional check instrument, which is characterized in that including power module, control module, sinusoidal friendship
Galvanic electricity stream inverter module and display module；Power module is connect with control module, control module and display module, sinusoidal ac
Flow inverter module connection；Power module be used for the voltage and current measurement module inside phase voltammetric meter and phase voltammetric meter into
Row power supply；The input terminal of the voltage and current measurement module of simple sinusoidal alternating current inverter module and phase voltammetric meter connects, voltage
And the output end of current measurement module is connect with control module.
2. portable phase voltammetric meter functional check instrument according to claim 1, which is characterized in that the power module
Including commercial power interface, battery charging module, battery pack, pure sine wave inverter and switch power module, commercial power interface is successively led to
It crosses battery charging module, battery pack, pure sine wave inverter and switch power module to connect, switch power module and control module
Connection；Pure sine wave inverter is used to be powered the voltage and current measurement module of phase voltammetric meter and its inside.
3. a kind of portable phase voltammetric meter functional check instrument according to claim 2, which is characterized in that the battery
Group uses lithium battery group.
4. a kind of portable phase voltammetric meter functional check instrument according to claim 1, which is characterized in that the control
Module uses microprocessor.
5. a kind of portable phase voltammetric meter functional check instrument according to claim 2, which is characterized in that the alternating current connects
Mouth is connect by switching voltage conversion module with battery charging module.
6. a kind of portable phase voltammetric meter functional check instrument according to claim 5, which is characterized in that the battery pack
Front end be provided with over-charging of battery protection circuit, over-charging of battery protection circuit connect with battery charging module, the battery pack
Rear end is provided with battery over-discharge protection circuit, and battery over-discharge protection circuit is connect with pure sine wave inverter.
7. a kind of portable phase voltammetric meter functional check instrument according to claim 6, which is characterized in that battery over-discharge is protected
Protection circuit is connect by voltage boosting and stabilizing circuit with pure sine wave inverter.
8. a kind of portable phase voltammetric meter functional check instrument according to claim 1, which is characterized in that the display
Module is liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983154.5A CN109188329B (en) | 2018-08-27 | 2018-08-27 | Portable phase volt-ampere meter function inspection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983154.5A CN109188329B (en) | 2018-08-27 | 2018-08-27 | Portable phase volt-ampere meter function inspection tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109188329A true CN109188329A (en) | 2019-01-11 |
| CN109188329B CN109188329B (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983154.5A Active CN109188329B (en) | 2018-08-27 | 2018-08-27 | Portable phase volt-ampere meter function inspection tester |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521236A (en) * | 2019-01-30 | 2019-03-26 | 苑恩萌 | A kind of portable mobile wireless secondary circuit dosage instrument and its dosage method |
| CN116577712A (en) * | 2023-04-04 | 2023-08-11 | 国网江苏省电力有限公司南通供电分公司 | Fault detector for ring main unit electrified display device and control method thereof |
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| CN102072999A (en) * | 2009-11-25 | 2011-05-25 | 江苏省电力公司南京供电公司 | Connection testing device of electric energy metering device and using method thereof |
| CN203811797U (en) * | 2014-04-09 | 2014-09-03 | 国家电网公司 | Analog electrician/electronic signal and digital signal electric energy meter verification apparatus |
| CN104345294A (en) * | 2014-11-04 | 2015-02-11 | 国家电网公司 | Electric energy meter dynamic performance test device |
| EP2424064B1 (en) * | 2010-08-31 | 2015-07-15 | Hitachi Automotive Systems, Ltd. | Overcurrent fault detection device for electrical drive control system |
| CN105137386A (en) * | 2015-09-08 | 2015-12-09 | 国网浙江义乌市供电公司 | Control system based on electric energy meter data acquisition recorder |
| CN209167525U (en) * | 2018-08-27 | 2019-07-26 | 广东电网有限责任公司 | A kind of portable phase voltammetric meter functional check instrument |
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2018
- 2018-08-27 CN CN201810983154.5A patent/CN109188329B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102072999A (en) * | 2009-11-25 | 2011-05-25 | 江苏省电力公司南京供电公司 | Connection testing device of electric energy metering device and using method thereof |
| EP2424064B1 (en) * | 2010-08-31 | 2015-07-15 | Hitachi Automotive Systems, Ltd. | Overcurrent fault detection device for electrical drive control system |
| CN203811797U (en) * | 2014-04-09 | 2014-09-03 | 国家电网公司 | Analog electrician/electronic signal and digital signal electric energy meter verification apparatus |
| CN104345294A (en) * | 2014-11-04 | 2015-02-11 | 国家电网公司 | Electric energy meter dynamic performance test device |
| CN105137386A (en) * | 2015-09-08 | 2015-12-09 | 国网浙江义乌市供电公司 | Control system based on electric energy meter data acquisition recorder |
| CN209167525U (en) * | 2018-08-27 | 2019-07-26 | 广东电网有限责任公司 | A kind of portable phase voltammetric meter functional check instrument |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521236A (en) * | 2019-01-30 | 2019-03-26 | 苑恩萌 | A kind of portable mobile wireless secondary circuit dosage instrument and its dosage method |
| CN116577712A (en) * | 2023-04-04 | 2023-08-11 | 国网江苏省电力有限公司南通供电分公司 | Fault detector for ring main unit electrified display device and control method thereof |
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| Publication number | Publication date |
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| CN109188329B (en) | 2020-02-04 |
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