CN105372620A - Power metering detector - Google Patents
Power metering detector Download PDFInfo
- Publication number
- CN105372620A CN105372620A CN201510714882.2A CN201510714882A CN105372620A CN 105372620 A CN105372620 A CN 105372620A CN 201510714882 A CN201510714882 A CN 201510714882A CN 105372620 A CN105372620 A CN 105372620A
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- CN
- China
- Prior art keywords
- electrically connected
- chip microcomputer
- electric
- power metering
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power metering detector, and the detector comprises a power supply, a single-chip microcomputer, a storage unit, an LCD display screen, a power grid voltage and a power grid current. A voltage transformer is electrically connected with the single-chip microcomputer through a phase locking ring, and the single-chip microcomputer is electrically connected with a wireless communication module. The wireless communication module is in wireless electrical connection with a remote monitoring terminal. The voltage and current signals are obtained through a current clamp. The detector is convenient, quick, safe and clear in wiring, and greatly improves the safety factor. The detected data are directly stored in an internal storage unit through built-in computing software. The remote monitoring terminal, which is connected through the wireless communication module, also can monitor and record the electric quantity of a meter.
Description
Technical field
The invention belongs to technical field of electric power detection, be specifically related to a kind of electric-power metering detector.
Background technology
All kinds of electric-power metering pick-up unit must carry out laboratory head inspection according to the corresponding regulation that detects before installing and using, but in actual field application, only measuring apparatus itself accurately might not finally ensure the accurate of electric-power metering.In actual moving process, due to reasons such as unreasonable, the change of the method for operation of metering method, Voltage Transformer Secondary Circuit Voltage Drop are excessive, wiring errors, error in dipping can be caused excessive, and electric quantity loss is serious.In the past because the pulse signal of input instrument during calibration obtains by pressing switch manually, the accuracy of calibration result and calibration measurement stability can not be ensured and the electric current that electric current and voltage signal are directly connected to calibrated meter by terminal block or wiring exports or input end obtains, make wiring loaded down with trivial details, and easily because wiring error causes accident, cause calibration personnel personal injury and economic loss to detect data and also need artificial pointwise record, labor intensive resource.
Summary of the invention
The object of the present invention is to provide a kind of electric-power metering detector, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme: a kind of electric-power metering detector, comprise power supply, single-chip microcomputer, storer, LCD display, line voltage and power network current, described power supply and single-chip microcomputer are electrically connected, described storer and single-chip microcomputer are electrically connected, described LCD display and single-chip microcomputer are electrically connected, described line voltage is electrically connected with voltage transformer (VT), described voltage transformer (VT) is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, and described voltage transformer (VT) is electrically connected by phaselocked loop and single-chip microcomputer, described power network current is electrically connected with current transformer, described current transformer is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, described single-chip microcomputer is electrically connected with photoelectrical coupler by pulse signal Shaping Module, described single-chip microcomputer is electrically connected with alarm, described single-chip microcomputer is electrically connected with wireless communication module, described wireless communication module is wireless is electrically connected with remote monitoring terminal.
Preferably, described remote monitoring terminal is mobile phone or computing machine.
Preferably, described single-chip microcomputer is electrically connected with keyboard interface.
Preferably, described single-chip microcomputer is also electrically connected with clock circuit.
Preferably, described single-chip microcomputer is also electrically connected with printer.
Preferably, described single-chip microcomputer is also electrically connected with crystal oscillating circuit.
Technique effect of the present invention and advantage: this electric-power metering detector, the module that its current transformer and voltage transformer (VT) gather data-signal or process can carry out testing to signal, also can deal with the work accordingly to testing result, use the mutual inductor of electric current and voltage by high-speed modular converter, finally the simulating signal that current transformer and voltage transformer (VT) export is converted in order to digital signal, its crystal circuit and clock circuit can improve the stable of single-chip microcomputer, and crystal oscillating circuit can provide basic clock signal for system, with traditional electric-power metering pick-up unit, voltage of the present invention, current signal all adopts current clamp to obtain, easy-to-connect, rapidly, safety, understand, safety coefficient improves greatly, the pulse signal of input instrument is directly obtained from ammeter by photoelectrical coupler, reducing people is the systematic error caused, ensure that accuracy and the stability of detection, the data detected also directly are stored in the middle of internal memory by included computer software, and the remote monitoring terminal connected by wireless communication module also can monitor the electricity with recorder, and the present invention can not have a power failure, when not changing measurement loop wiring, measure composition error and the electric energy meter of single-phase measurement case online, the error of mutual inductor, and print result, and then the open circuit judging loop, short circuit, loose contact, reverse polarity connection, change and nameplate such as not to be inconsistent at the metering fault, are that electric administrative department looks into stealing, look into fault, remedy the useful tool of the electricity charge, can also inquire about simultaneously, print data record, avoid because manual record data cause data recording error.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of electric-power metering detector as shown in Figure 1, comprise power supply, single-chip microcomputer, storer, LCD display, line voltage and power network current, described single-chip microcomputer is electrically connected with keyboard interface, described power supply and single-chip microcomputer are electrically connected, described storer and single-chip microcomputer are electrically connected, described LCD display and single-chip microcomputer are electrically connected, described line voltage is electrically connected with voltage transformer (VT), described voltage transformer (VT) is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, and described voltage transformer (VT) is electrically connected by phaselocked loop and single-chip microcomputer, described power network current is electrically connected with current transformer, described current transformer is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, described single-chip microcomputer is electrically connected with photoelectrical coupler by pulse signal Shaping Module, described single-chip microcomputer is electrically connected with alarm, described single-chip microcomputer is electrically connected with wireless communication module, described wireless communication module is wireless is electrically connected with remote monitoring terminal, described remote monitoring terminal is mobile phone or computing machine, described single-chip microcomputer is also electrically connected with clock circuit, described single-chip microcomputer is also electrically connected with printing, described single-chip microcomputer is also electrically connected with crystal oscillating circuit, its crystal circuit and clock circuit can improve the stable of single-chip microcomputer, crystal oscillating circuit can provide basic clock signal for system.This electric-power metering detector, the module that its current transformer and voltage transformer (VT) gather data-signal or process can carry out testing to signal, also can deal with the work accordingly to testing result, use the mutual inductor of electric current and voltage by high-speed modular converter, finally the simulating signal that current transformer and voltage transformer (VT) export is converted in order to digital signal, with traditional electric-power metering pick-up unit, voltage of the present invention, current signal all adopts current clamp to obtain, easy-to-connect, rapidly, safety, understand, safety coefficient improves greatly, the pulse signal of input instrument is directly obtained from ammeter by photoelectrical coupler, reducing people is the systematic error caused, ensure that accuracy and the stability of detection, the data detected also directly are stored in the middle of internal memory by included computer software, and the remote monitoring terminal connected by wireless communication module also can monitor the electricity with recorder, and the present invention can not have a power failure, when not changing measurement loop wiring, measure composition error and the electric energy meter of single-phase measurement case online, the error of mutual inductor, and print result, and then the open circuit judging loop, short circuit, loose contact, reverse polarity connection, change and nameplate such as not to be inconsistent at the metering fault, are that electric administrative department looks into stealing, look into fault, remedy the useful tool of the electricity charge, can also inquire about simultaneously, print data record, avoid because manual record data cause data recording error.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to previous embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an electric-power metering detector, comprise power supply, single-chip microcomputer, storer, LCD display, line voltage and power network current, described power supply and single-chip microcomputer are electrically connected, it is characterized in that: described storer and single-chip microcomputer are electrically connected, described LCD display and single-chip microcomputer are electrically connected, described line voltage is electrically connected with voltage transformer (VT), described voltage transformer (VT) is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, and described voltage transformer (VT) is electrically connected by phaselocked loop and single-chip microcomputer, described power network current is electrically connected with current transformer, described current transformer is electrically connected with modulate circuit, described modulate circuit is electrically connected by A/D change-over circuit and single-chip microcomputer, described single-chip microcomputer is electrically connected with photoelectrical coupler by pulse signal Shaping Module, described single-chip microcomputer is electrically connected with alarm, described single-chip microcomputer is electrically connected with wireless communication module, described wireless communication module is wireless is electrically connected with remote monitoring terminal.
2. a kind of electric-power metering detector according to claim 1, is characterized in that: described remote monitoring terminal is mobile phone or computing machine.
3. a kind of electric-power metering detector according to claim 1, is characterized in that: described single-chip microcomputer is electrically connected with keyboard interface.
4. a kind of electric-power metering detector according to claim 1, is characterized in that: described single-chip microcomputer is also electrically connected with clock circuit.
5. a kind of electric-power metering detector according to claim 1, is characterized in that: described single-chip microcomputer is also electrically connected with printer.
6. a kind of electric-power metering detector according to claim 1, is characterized in that: described single-chip microcomputer is also electrically connected with crystal oscillating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714882.2A CN105372620A (en) | 2015-10-29 | 2015-10-29 | Power metering detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714882.2A CN105372620A (en) | 2015-10-29 | 2015-10-29 | Power metering detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105372620A true CN105372620A (en) | 2016-03-02 |
Family
ID=55374977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510714882.2A Pending CN105372620A (en) | 2015-10-29 | 2015-10-29 | Power metering detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105372620A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918799A (en) * | 2017-04-12 | 2017-07-04 | 华北电力科学研究院有限责任公司 | Electric energy meter remote checking method and system |
| CN107632222A (en) * | 2017-11-17 | 2018-01-26 | 广东电网有限责任公司清远供电局 | A kind of portable load Analysis warning system and method |
| CN108008220A (en) * | 2017-12-01 | 2018-05-08 | 任书宬 | A kind of power supply safety detecting system |
| CN108710326A (en) * | 2018-05-24 | 2018-10-26 | 夏文才 | A kind of smart home electric control system |
| CN109120267A (en) * | 2018-10-25 | 2019-01-01 | 南方电网科学研究院有限责任公司 | Power signal synchronous sampling system and method |
-
2015
- 2015-10-29 CN CN201510714882.2A patent/CN105372620A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918799A (en) * | 2017-04-12 | 2017-07-04 | 华北电力科学研究院有限责任公司 | Electric energy meter remote checking method and system |
| CN107632222A (en) * | 2017-11-17 | 2018-01-26 | 广东电网有限责任公司清远供电局 | A kind of portable load Analysis warning system and method |
| CN108008220A (en) * | 2017-12-01 | 2018-05-08 | 任书宬 | A kind of power supply safety detecting system |
| CN108710326A (en) * | 2018-05-24 | 2018-10-26 | 夏文才 | A kind of smart home electric control system |
| CN109120267A (en) * | 2018-10-25 | 2019-01-01 | 南方电网科学研究院有限责任公司 | Power signal synchronous sampling system and method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |