CN203595733U - Three-phase power monitor - Google Patents

Three-phase power monitor Download PDF

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Publication number
CN203595733U
CN203595733U CN201320777999.1U CN201320777999U CN203595733U CN 203595733 U CN203595733 U CN 203595733U CN 201320777999 U CN201320777999 U CN 201320777999U CN 203595733 U CN203595733 U CN 203595733U
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CN
China
Prior art keywords
module
processing unit
central processing
phase power
power monitor
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Expired - Lifetime
Application number
CN201320777999.1U
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Chinese (zh)
Inventor
王东林
李中南
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Shenzhen Northmeter Co Ltd
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Shenzhen Northmeter Co Ltd
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Priority to CN201320777999.1U priority Critical patent/CN203595733U/en
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Publication of CN203595733U publication Critical patent/CN203595733U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a three-phase power monitor. The three-phase power monitor includes a current sampling module, a voltage sampling module and an RS485 communication interface. The three-phase power monitor is characterized in that the three-phase power monitor also includes a dedicated electric power chip, a central processing unit, a display module and a power carrier communication module; the dedicated electric power chip is electrically connected respectively to the current sampling module, the voltage sampling module and the central processing unit; the central processing unit is electrically connected to the power carrier module, the RS485 communication interface and the display module; and after the current sampled by the current sampling module and the voltage sampled by the voltage sampling module are processed into electric power values by the dedicated electric power module, the electric power values are transmitted to the central processing unit, and then transmitted by the central processing unit to the display module for display. According to the utility model, the functions of the three-phase power monitor are extended, and diverse communication modes can prevent data transmission delay or loss of data when a single communication mode fails.

Description

Three-phase power monitor
Technical field
The utility model relates to energy monitoring apparatus, particularly relates to a kind of three-phase power monitor.
Background technology
Along with the development of electric system, people's life has be unable to do without electricity.For convenient statistics power consumption situation, need to adopt electric supervising device to carry out statistical monitoring.Traditional electric supervising device function singleness, can only simply detect the data such as voltage, electric current, and can only adopt RS485 communication, and data communication method is single.
Utility model content
Based on this, being necessary, for traditional electric supervising device function singleness and the single problem of communication modes, provides a kind of diverse in function and communication modes various three-phase power monitor.
A kind of three-phase power monitor, comprise current sample module, voltage sample module and RS485 communication interface, also comprise special electric energy chip, central processing unit, display module, power line carrier, PLC module, described special electric energy chip respectively with described current sample module, voltage sample module, central processing unit electrical connection, described central processing unit respectively with described power carrier module, RS485 communication interface and display module electrical connection, described special electric energy chip is processed into the voltage of the electric current of current sample module samples and the collection of voltage sample module after energy value, be transferred to central processing unit, by central processing unit, described energy value transmission display module is shown again.
In an embodiment, described three-phase power monitor also comprises wireless communication module therein, and described wireless communication module is connected with described central processing unit.
In an embodiment, described wireless communication module comprises one or more in wireless radio frequency modules, WIFI module, bluetooth module, 3G module therein.
In an embodiment, described three-phase power monitor also comprises the pilot lamp, button, test output terminal mouth and the pulse output interface that are connected with described central processing unit therein.
In an embodiment, described three-phase power monitor also comprises power module therein, and described power module is electrically connected with special electric energy chip and central processing unit respectively.
Above-mentioned three-phase power monitor, can monitor three-phase current, voltage, active power, reactive power, general power etc. by special electric energy chip, can be by RS485 communication interface and/or power line carrier, PLC module transmission data, expand the function of three-phase power monitor, and communication modes is various, can avoid single communication to break down time, can prevent data transfer delay or loss of data.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of three-phase power monitor in an embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the structured flowchart of three-phase power monitor in an embodiment.Ginseng Fig. 1, a kind of three-phase power monitor, comprises current sample module 102, voltage sample module 104, special electric energy chip 106, central processing unit 108, RS485 communication interface 110, power line carrier, PLC module 112 and display module 114.
Special electric energy chip 106 is electrically connected with current sample module 102, voltage sample module 104, central processing unit 108 respectively.Special electric energy chip 106 can be ATT7022B or ATT7030 etc.Central processing unit 108 can be NEC series monolithic chip etc.
Central processing unit 108 is electrically connected with RS485 communication interface 110, power carrier module 112 and display module 114 respectively.
The voltage that the electric current that special electric energy chip 106 is sampled current sample module 102 and voltage sample module 104 gather is processed into after energy value, is transferred to central processing unit 108, then by central processing unit 108, this energy value transmission display module 114 is shown.
In the present embodiment, three-phase power monitor also comprises the wireless communication module 116, pilot lamp 118, button 120, test output terminal mouth 122, pulse output interface 124, the power module 126 that are connected with central processing unit 108.This power module 126 is also connected with special electric energy chip 106.This wireless communication module 116 can be wireless radio frequency modules, WIFI module, bluetooth module or 3G wireless module etc.Pilot lamp 118 can adopt the pilot lamp of the various colors such as redness, yellow.Button 120 can comprise menu key, on turn over button, under turn over button, programming button etc.
The course of work of above-mentioned three-phase power monitor is:
(1) power-up state: while powering on, electric supervising device enters full show state, enters normal measuring state about 3~5 seconds.
(2) programming state: by pressing programming button, enter programming state, the pilot lamp of programming state can be bright, programming button is pressed when long without programming operation, and programming button pilot lamp automatic distinguishing, exits programming state automatically.
(3) communication state: three-phase power monitor adopts RS485 communication interface or wireless communication module, or power line carrier, PLC module carries out data transmission, and support multiple kinds, can complete by order the mutual switching of agreement.The baud rate of communication interface transmission data can adopt two kinds of 4800/9600bps.
(4) show state: support three-phase voltage, three-phase current, electric weight, address, the information such as current communications protocol show.
(5) normal detected state: the special electric energy chip of central processing unit control carries out to electric weight every predetermined interval that sampling should be carried out, and to the calculating of sampling of various parameters, to harmonic data sampling and analyzing, the harmonic wave sampling can reach 31 subharmonic.Can gather three-phase phase voltage Ua, Ub, Uc; Three-phase phase current Ia, Ib, Ic and neutral line current; Three phases active power Pa, Pb, Pc; Total active-power P s; Three phase reactive power Qa, Qb, Qc; Total reactive power Q s; Three-phase applied power Sa, Sb, Sc; Total applied power Ss; Power factor Pf; Frequency F; Four-quadrant electric energy; Total meritorious forward electric weight, always meritorious reverse electric weight, total idle forward electric weight, total idle reverse electric weight, A mutually meritorious total electric energy, B mutually meritorious total electric energy, C mutually meritorious total electric energy, the meritorious total electric energy of A phase forward, the meritorious total electric energy of B phase forward, the meritorious total electric energy of C phase forward, A on the contrary to meritorious total electric energy, B on the contrary to meritorious total electric energy, C on the contrary to meritorious total electric energy, harmonic wave detects, logout, load record.
(6) power down process: in power down moment, all significant datas are preserved.
Above-mentioned three-phase power monitor, can monitor three-phase current, voltage, active power, reactive power, general power etc. by special electric energy chip, can be by RS485 communication interface and/or power line carrier, PLC module transmission data, expand the function of three-phase power monitor, and communication modes is various, can avoid single communication to break down time, can prevent data transfer delay or loss of data.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (5)

1. a three-phase power monitor, comprise current sample module, voltage sample module and RS485 communication interface, it is characterized in that, also comprise special electric energy chip, central processing unit, display module, power line carrier, PLC module, described special electric energy chip respectively with described current sample module, voltage sample module, central processing unit electrical connection, described central processing unit respectively with described power carrier module, RS485 communication interface and display module electrical connection, described special electric energy chip is processed into the voltage of the electric current of current sample module samples and the collection of voltage sample module after energy value, be transferred to central processing unit, by central processing unit, described energy value transmission display module is shown again.
2. three-phase power monitor according to claim 1, is characterized in that, described three-phase power monitor also comprises wireless communication module, and described wireless communication module is connected with described central processing unit.
3. three-phase power monitor according to claim 2, is characterized in that, described wireless communication module comprises one or more in wireless radio frequency modules, WIFI module, bluetooth module, 3G module.
4. three-phase power monitor according to claim 1, is characterized in that, described three-phase power monitor also comprises the pilot lamp, button, test output terminal mouth and the pulse output interface that are connected with described central processing unit.
5. three-phase power monitor according to claim 1, is characterized in that, described three-phase power monitor also comprises power module, and described power module is electrically connected with special electric energy chip and central processing unit respectively.
CN201320777999.1U 2013-11-29 2013-11-29 Three-phase power monitor Expired - Lifetime CN203595733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320777999.1U CN203595733U (en) 2013-11-29 2013-11-29 Three-phase power monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320777999.1U CN203595733U (en) 2013-11-29 2013-11-29 Three-phase power monitor

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CN203595733U true CN203595733U (en) 2014-05-14

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CN201320777999.1U Expired - Lifetime CN203595733U (en) 2013-11-29 2013-11-29 Three-phase power monitor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113075609A (en) * 2021-04-13 2021-07-06 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Wave recording metering system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113075609A (en) * 2021-04-13 2021-07-06 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Wave recording metering system

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Granted publication date: 20140514