CN201740806U - Electric energy gauge misconnection high-voltage alarming device - Google Patents
Electric energy gauge misconnection high-voltage alarming device Download PDFInfo
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- CN201740806U CN201740806U CN2010202741087U CN201020274108U CN201740806U CN 201740806 U CN201740806 U CN 201740806U CN 2010202741087 U CN2010202741087 U CN 2010202741087U CN 201020274108 U CN201020274108 U CN 201020274108U CN 201740806 U CN201740806 U CN 201740806U
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Abstract
The utility model relates to an electric energy gauge misconnection high-voltage alarming device, comprising an electric energy gauge, characterized in that: a divider resistance is in serial connection with a zero line of the electric energy gauge and a sample module bridges two ends of the divider resistance; a data line of the sample module and a control line are connected with a main control chip and a data output line of the main control chip is connected with a liquid crystal display module and the main control chip is 71M6521. The alarming device effectively solves the electric energy meter misconnection alarming technology, automatically discriminates the electric meter connection state and suggests the connection error and provides convenience for discriminating the misconnection.
Description
Technical field
The utility model relates to a kind of electric energy meter error connection alarm for high voltage device.
Background technology
The electric energy meter error connection, be meant the inlet wire of electric energy meter or outlet not according to ammeter correctly require wiring, may cause the metering of electric energy meter inaccurate thus.Cause the reason of electric energy meter error connection to have two, one is the maloperation of electrician when electric energy meter is installed, and that another kind of situation is the people is right for making.Because the kind of electric energy meter error connection is very many, wherein Jue Dabufen wiring error all can cause electric energy metrical loss, ammeter to damage even security incident occur, so more and more cause the great attention of power department.But the function that electric energy meter does not in the market have error connection to report to the police, after the error connection situation occurring, work is more loaded down with trivial details during maintainer's conducting transmission line of Utilities Electric Co. investigation.Therefore demand developing the electric energy meter error connection warning device that to report to the police automatically urgently.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that electric energy meter of the prior art does not have the function existence of error connection warning, provides and a kind of electric energy meter error connection alarm for high voltage device.The utility model designs a kind of electric energy meter error connection alarm for high voltage device, comprise electric energy meter, it is characterized in that: series connection is connected to divider resistance on the zero line of electric energy meter, in the cross-over connection of the two ends of divider resistance sampling module is arranged, the data line of sampling module is connected main control chip with control line, the DOL Data Output Line of main control chip connects LCD MODULE, and main control chip is 71M6521.The utility model efficiently solves electric energy meter error connection alarm technique, differentiates the ammeter wiring state automatically and points out wiring error, provides convenience for the investigation of error connection.
Description of drawings
Accompanying drawing is circuit theory diagrams of the present utility model,
Comprise electric energy meter 1 among the figure, it is characterized in that: series connection is connected to divider resistance 3 on the zero line 2 of electric energy meter, in the cross-over connection of the two ends of divider resistance sampling module 4 is arranged, the data line of sampling module is connected main control chip 5 with control line, and the DOL Data Output Line of main control chip connects LCD MODULE 6.Sampling module of the present utility model and main control chip are one, and main control chip is the 71M6521 of TERIDIAN company.
Embodiment
When electric energy meter moves, main control chip control sampling module is taken a sample to the voltage dividing potential drop on the divider resistance, send main control chip after voltage analog signal mould/number conversion with the sampling gained, main control chip is analyzed this numerical signal, and makes judgement according to analysis result.At at present general household electricity is 220 volts of alternating currents, and therefore as if the result who analyzes, voltage surpasses 300 volts, then is judged as the electric energy meter error connection and is high pressure conditions, and this high pressure conditions signal is sent to LCD MODULE, by the corresponding alarm for high voltage code of liquid crystal display.Power department is in time revised connection box of electric energy meter by the prompting error message, reduces electric energy metrical loss and potential safety hazard.
Claims (2)
1. electric energy meter error connection alarm for high voltage device, comprise electric energy meter, it is characterized in that: series connection is connected to divider resistance on the zero line of electric energy meter, in the cross-over connection of the two ends of divider resistance sampling module is arranged, the data line of sampling module is connected main control chip with control line, and the DOL Data Output Line of main control chip connects LCD MODULE.
2. by the described a kind of electric energy meter error connection alarm for high voltage device of claim 1, it is characterized in that: main control chip is 71M6521.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202741087U CN201740806U (en) | 2010-07-28 | 2010-07-28 | Electric energy gauge misconnection high-voltage alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202741087U CN201740806U (en) | 2010-07-28 | 2010-07-28 | Electric energy gauge misconnection high-voltage alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740806U true CN201740806U (en) | 2011-02-09 |
Family
ID=43556084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202741087U Expired - Fee Related CN201740806U (en) | 2010-07-28 | 2010-07-28 | Electric energy gauge misconnection high-voltage alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182170A (en) * | 2015-10-23 | 2015-12-23 | 国家电网公司 | Device and method for verifying zero and firing lines of household electricity meter |
| CN113447885A (en) * | 2021-08-30 | 2021-09-28 | 广东电网有限责任公司湛江供电局 | Electric energy meter wrong wiring rapid detection circuit and device |
-
2010
- 2010-07-28 CN CN2010202741087U patent/CN201740806U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182170A (en) * | 2015-10-23 | 2015-12-23 | 国家电网公司 | Device and method for verifying zero and firing lines of household electricity meter |
| CN105182170B (en) * | 2015-10-23 | 2018-07-03 | 国家电网公司 | A kind of zero firewire calibration equipment of resident's ammeter and its method of calibration |
| CN113447885A (en) * | 2021-08-30 | 2021-09-28 | 广东电网有限责任公司湛江供电局 | Electric energy meter wrong wiring rapid detection circuit and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130728 |