CN205643688U - Single -phase electric energy meter detection device - Google Patents
Single -phase electric energy meter detection device Download PDFInfo
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- CN205643688U CN205643688U CN201620523687.1U CN201620523687U CN205643688U CN 205643688 U CN205643688 U CN 205643688U CN 201620523687 U CN201620523687 U CN 201620523687U CN 205643688 U CN205643688 U CN 205643688U
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Abstract
The utility model discloses a single -phase electric energy meter detection device, including a central processing unit, display element, key entry unit, alternate current sampling unit, interface unit power supply unit, data memory cell, optoelectronic isolation circuit, clock circuit and power control circuit. The beneficial effects of the utility model are that: this kind of single -phase electric energy meter detection device's inside parameter and data have electric automatic storing function, can provide virtual load, can zero load or load and carry out the electric energy meter under the little condition and detect the user, single -phase electric energy meter detection device measures and displaying voltage through external voltage line and high accuracy current clamp table, the electric current, the phase place, real -time measurement active power, reactive power, apparent power, frequency and power factor, the device is equipped with the pulse input output interface, the pulse input interface is connected with the meritorious pulse output interface of strapping table, gather pulse signal and calculate the electric energy meter error, pulse output interface outlet pulse signal, be convenient for device self -checking and censorship.
Description
Technical field
This utility model relates to a kind of detection device of electric energy meter, is specially a kind of single-phase electric energy meter detection device,
Belong to power system applied technical field.
Background technology
At present, along with developing rapidly of China's economy, all trades and professions are increasing to the demand of electricity, different
The unbalanced phenomenon of time power consumption is the most serious, and electric energy meter is used to measure the high-precision meter of electric energy,
The all-round popularization of intelligent electric energy meter and application, the important component part will built as intelligent grid, it is achieved
" all standing, full collection, control in full " to electricity consumption user, will promote power information acquisition system product
The lifting of technology, and along with the Fast Construction of Guo Wang company power information acquisition system, intelligent electric energy meter
Progress is also accelerated in promotion and application, has large quantities of intelligent electric energy meters to be installed to scene, resident every year
Single-phase electric energy meter quantity is increasing, and electric energy meter Detection task becomes more and more heavier, tradition electric energy meter inspection
Measurement equipment volume is relatively big, operation complexity, is not easy to Site Detection, when user is zero load or load is relatively low,
Cannot be carried out Site Detection or accuracy of detection is relatively low, therefore, propose a kind of single-phase electric energy for the problems referred to above
Table detection device.
Utility model content
The purpose of this utility model is that provides a kind of single-phase electric energy meter detection to solve the problems referred to above
Device, when user is zero load or load is less, is provided virtual load to tear open not having a power failure by device
In the case of line, user's mechanical type or full electronic single-phase electric energy meter are carried out Site Detection, improves electric energy meter
Site Detection precision and work efficiency, neither affect user's normal electricity consumption, complete again the scene of electric energy meter
Detection.
This utility model is achieved through the following technical solutions above-mentioned purpose, a kind of single-phase electric energy meter detection dress
Put, including CPU, described CPU connect display unit, key input unit,
AC sampling unit, interface unit and power supply unit；Described display unit, described key input unit are equal
Connect data storage cell, power control circuit and clock circuit；Described CPU, described aobvious
Show unit, described key input unit, described AC sampling unit, described interface unit, described power supply
Connect between unit and all use photoelectric isolating circuit to connect.
Preferably, described CPU is internal with said supply unit to be electrically connected with, and described central authorities
Processing unit is bi-directionally connected inside described AC sampling unit, described interface unit.
Preferably, described AC sampling unit is made up of AC sampling chip (A/D) and peripheral interface circuit.
Preferably, described CPU is by one chip microcomputer (MCU) or embedded system (ARM)
Composition.
Preferably, described display unit is provided with voltage, electric current, phase place display module.
The beneficial effects of the utility model are: the inner parameter of this kind of single-phase electric energy meter detection device and data
There is power down and automatically save function, it is provided that virtual load, can or feelings that load little zero load user
Carrying out electric energy meter detection under condition, single-phase electric energy meter detection device is clamped by external voltage line and high-precision current
Voltage, electric current, phase place are measured and shown to table, measure in real time active power, reactive power, apparent energy,
Frequency and power factor, after explanation correct wiring, start enters electric energy meter detection menu, by outward
Connect pressure-wire and high-precision current split-core type meter sampling location voltage x current value, adopted by photoelectric gathering apparatus or pulse
Line concentration is connected with equipment, gathers electric energy meter output pulse signal, according to the on-the-spot voltage recorded, current value
Calculate realtime power, calculate electric energy meter realtime power by the electric energy meter pulse that collects output number, two
Person's power compares in real time, calculates electric energy meter error, calculates mean error by three error amounts
Value, measured value is shown in real time by display unit, and this device is provided with pulse input/output interface, arteries and veins
Rushing input interface pulse output interface of gaining merit with gauge table to be connected, acquisition pulse signal calculates electric energy meter by mistake
Difference.Pulse output interface output pulse signal, it is simple to self-check of device and censorship.
Accompanying drawing explanation
Fig. 1 is this utility model integral module connection diagram；
Fig. 2 is this utility model unit and circuit connection diagram.
In figure: 1, CPU, 2, display unit, 3, key input unit, 4, exchange adopts
Sample unit, 5, interface unit, 6, power supply unit, 7, data storage cell, 8, power control circuit,
9, clock circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Referring to shown in Fig. 1-2, a kind of single-phase electric energy meter detection device, including CPU 1, institute
State CPU 1 and connect display unit 2, key input unit 3, AC sampling unit 4, interface
Unit 5 and power supply unit 6；Described display unit 2, described key input unit 3 are all connected with data storage
Unit 7, power control circuit 8 and clock circuit 9；Described CPU 1, described display unit
2, described key input unit 3, described AC sampling unit 4, described interface unit 5, described power supply list
Connect between unit 6 and all use photoelectric isolating circuit to connect.
As a kind of technical optimization scheme of the present utility model, described CPU 1 and described power supply
Unit 6 is internal to be electrically connected with, and described CPU 1 and described AC sampling unit 4, described in connect
Mouth unit 5 is internal to be bi-directionally connected, convenient control.
As a kind of technical optimization scheme of the present utility model, described AC sampling unit 4 is by AC sampling
Chip A/D and peripheral interface circuit composition, acquisition pulse signal calculates electric energy meter error.
As a kind of technical optimization scheme of the present utility model, described CPU 1 is by minitype single-chip
Machine MCU or embedded system ARM composition.
As a kind of technical optimization scheme of the present utility model, described display unit 2 be provided with voltage, electric current,
Phase place display module, it is simple to self-check of device and censorship.
In use, this detection device is formed core by single-chip microcomputer or embedded system and software to this utility model
Central Processing Unit 1 in the heart, be aided with Large Copacity program storage (ROM), data storage (RAM), time
Clock circuit and self-resetting circuit, it is ensured that device stable operation, display unit 2 is by big screen LCD
Form with drive circuit, for function menu and measurement data, key input unit 3 by keyboard and
Keyboard data line forms, and AC sampling unit 4 is by extensive high-precision AC sampling A/D chip (A/D) and outward
Enclosing interface circuit composition, voltage, current signal are carried out computing collection, interface unit 5 is by external voltage
Gathering line, high-precision current split-core type meter and pulse signal acquisition line composition, power supply unit 6 by power circuit,
Battery charge control circuit and battery composition, provide power supply for device, and this device can also use by survey line
Road voltage is powered.
The single-phase electric energy meter detection device that this utility model provides, to specifications after correct wiring, start
Enter electric energy meter detection menu, by external voltage line and high-precision current split-core type meter sampling location voltage x current
Value, is connected with equipment by photoelectric gathering apparatus or pulse collection line, gathers electric energy meter output pulse signal,
Calculate realtime power according to the on-the-spot voltage recorded, current value, exported by the electric energy meter pulse collected
Number calculates electric energy meter realtime power, and both compare by power in real time, calculate electric energy meter error, logical
Crossing three error amounts and calculate average error value, measured value is shown in real time by display unit 2, should
Device can provide dummy load, in the case of and load zero load user is less, provides for gauge table
Virtual load, in order to carry out gauge table detection.
It is obvious to a person skilled in the art that this utility model is not limited to above-mentioned one exemplary embodiment
Details, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to other
Concrete form realizes this utility model.Which point therefore, no matter from the point of view of, embodiment all should be regarded as
Exemplary, and be nonrestrictive, scope of the present utility model by claims rather than on
State bright restriction, it is intended that all changes that will fall in the implication of equivalency and scope of claim
Change and include in this utility model.Any reference in claim should be considered as restriction involved
Claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, but the most each reality
Mode of executing only comprises an independent technical scheme, and this narrating mode of description is only for understand
Seeing, those skilled in the art should be using description as an entirety, and the technical scheme in each embodiment is also
Other embodiments that it will be appreciated by those skilled in the art that can be formed through appropriately combined.
Claims (5)
1. a single-phase electric energy meter detection device, including CPU (1), it is characterised in that: institute
State CPU (1) and connect display unit (2), key input unit (3), AC sampling list
Unit (4), interface unit (5) and power supply unit (6)；Described display unit (2), described keyboard
Input block (3) is all connected with data storage cell (7), power control circuit (8) and clock circuit (9)；
Described CPU (1), described display unit (2), described key input unit (3), institute
State and connect all between AC sampling unit (4), described interface unit (5), said supply unit (6)
Employing photoelectric isolating circuit connects.
A kind of single-phase electric energy meter detection device the most according to claim 1, it is characterised in that: described
CPU (1) is internal with said supply unit (6) to be electrically connected with, and described central authorities process single
Unit (1) is bi-directionally connected with described AC sampling unit (4), described interface unit (5) inside.
A kind of single-phase electric energy meter detection device the most according to claim 1, it is characterised in that: described
AC sampling unit (4) is made up of AC sampling chip and peripheral interface circuit.
A kind of single-phase electric energy meter detection device the most according to claim 1, it is characterised in that: described
CPU (1) is made up of one chip microcomputer or embedded system.
A kind of single-phase electric energy meter detection device the most according to claim 1, it is characterised in that: described
Display unit (2) is provided with voltage, electric current, phase place display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523687.1U CN205643688U (en) | 2016-06-01 | 2016-06-01 | Single -phase electric energy meter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523687.1U CN205643688U (en) | 2016-06-01 | 2016-06-01 | Single -phase electric energy meter detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643688U true CN205643688U (en) | 2016-10-12 |
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ID=57051841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523687.1U Active CN205643688U (en) | 2016-06-01 | 2016-06-01 | Single -phase electric energy meter detection device |
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| Country | Link |
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| CN (1) | CN205643688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121659A (en) * | 2017-06-22 | 2017-09-01 | 国网辽宁省电力有限公司锦州供电公司 | A kind of three-phase electric energy meter on-site detection means and detection method |
| CN107515380A (en) * | 2017-07-20 | 2017-12-26 | 国网安徽省电力公司亳州供电公司 | A kind of single-phase zone load electric energy table on-site calibrator |
| CN112748388A (en) * | 2019-10-29 | 2021-05-04 | 国网宁夏电力有限公司电力科学研究院 | Test system and test method for intelligent electric meter |
-
2016
- 2016-06-01 CN CN201620523687.1U patent/CN205643688U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121659A (en) * | 2017-06-22 | 2017-09-01 | 国网辽宁省电力有限公司锦州供电公司 | A kind of three-phase electric energy meter on-site detection means and detection method |
| CN107515380A (en) * | 2017-07-20 | 2017-12-26 | 国网安徽省电力公司亳州供电公司 | A kind of single-phase zone load electric energy table on-site calibrator |
| CN112748388A (en) * | 2019-10-29 | 2021-05-04 | 国网宁夏电力有限公司电力科学研究院 | Test system and test method for intelligent electric meter |
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