CN205353325U - Quick detection device of three -phase symmetrical alternating current electrical parameter - Google Patents
Quick detection device of three -phase symmetrical alternating current electrical parameter Download PDFInfo
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- CN205353325U CN205353325U CN201620109367.1U CN201620109367U CN205353325U CN 205353325 U CN205353325 U CN 205353325U CN 201620109367 U CN201620109367 U CN 201620109367U CN 205353325 U CN205353325 U CN 205353325U
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- circuit
- alternating current
- phase symmetrical
- symmetrical alternating
- power supply
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Abstract
(B, ) quick detection device of three -phase symmetrical alternating current electrical parameter. Generally speaking, need to adopt two electrical power unit to supply power for important load to guarantee the continuity and the reliability of power supply. To the short -term test and the judgement of two independent electric power power supply states are one of key technology that realize the stand -by power supply fast switch over, even if otherwise use double - circuit electrical power unit also far can not reach real continuous power supply. The utility model discloses a constitution includes: instrument machine case (b) (b) 1 (b) (b), instrument machine case internally mounted have circuit board (b) (b) 2 (b) (b), the circuit board on install microcontroller (b) (b) 3 (b) (b), microcontroller be connected with signal conversion and data acquisition circuit (b) (b) 7 (b) (b), display driver and button control circuit (b) (b) 4 (b) (b), memory (b) (b) 5 (b) (b) and communication circuit electricity respectively, signal conversion and data acquisition circuit be connected with a set of voltage transformation circuit (b) (b) 8 (b) (b), a set of current transformation circuit (b) (b) 9 (b) (b) electricity. The utility model is used for three -phase symmetrical alternating current electrical parameter short -term test. (B, )
Description
Technical field:
This utility model relates to a kind of three-phase symmetrical alternating current parameter device for fast detecting.
Background technology:
Further development along with social economy, technology, power consumer is more and more higher to the requirement of the seriality of electric power system, reliability, especially for airport, fire-fighting, hospital, military installations, the sensitive important public arena such as industrial flow-line, large-scale activity place, once power-off occur or owing electricity, imponderable loss will be brought.Generally, dual power supply (active and standby two-way independent current source) equipment need to be adopted to power for these important loads, to ensure seriality and the reliability of power supply.Quickly detection and judgement to two independent power supply power supply status, is realize one of stand-by power supply key technology quickly switching (within a power frequency supply cycle), otherwise even with double loop power supply equipment also far from reaching real continuous power supply.
Utility model content:
The purpose of this utility model is to provide a kind of three-phase symmetrical alternating current parameter device for fast detecting.
Above-mentioned purpose is realized by following technical scheme:
A kind of three-phase symmetrical alternating current parameter device for fast detecting, its composition includes: instrument chassis, described instrument chassis is internally installed circuit board, described circuit board is provided with microcontroller, described microcontroller electrically connects with signal conversion and data acquisition circuit, display driving and key control circuit, memorizer and communicating circuit respectively, and described signal conversion and data acquisition circuit and one group of voltage conversion circuit, one group of current conversion circuit electrically connect.
Described three-phase symmetrical alternating current parameter device for fast detecting, described microcontroller includes single-chip microcomputer, intervalometer, electric power monitor, and the model of described single-chip microcomputer is MSP430.
Described three-phase symmetrical alternating current parameter device for fast detecting, described signal conversion and data acquisition circuit include Multi-path synchronous converter, photoelectric isolating circuit, and the model of described Multi-path synchronous converter is ADS8556.
Described three-phase symmetrical alternating current parameter device for fast detecting, equipped with human-computer interaction device and signal input terminal outside described instrument chassis, described human-computer interaction device includes LCD display and operation button, and described LCD display, described operation button electrically connect with described display driving and key control circuit respectively.
Beneficial effect:
1. the utility model proposes a kind of instantaneous flow by measuring the voltage of any time three-phase symmetrical system, electric current simultaneously, it is achieved to phase voltage, the isoparametric quick detection of phase current virtual value.When existing digitizing technique, the time measuring, calculating three-phase symmetrical alternating current parameter only needs the microsecond order of magnitude, and the conversion time for dual power supply equipment provides good technical guarantee less than power frequency electric cycle.
This utility model, when data acquisition, only by the three-phase symmetrical system instantaneous value of any time, need to directly try to achieve multiple alternating current parameter: three-phase general power P, phase voltage virtual value U, phase current virtual value I, apparent energy S, power factor PF and frequency f etc..Without the integral and calculating carrying out a cycle according to the definition of virtual value, thus decreasing the necessary data of calculating, saving acquisition time and calculating time, making the real-time of detection be greatly enhanced.
This utility model is when detecting more general three-phase asymmetric system, although its accuracy of measurement is subject to a definite limitation, but the state for two independent power supplies of detection, only needing to judge whether power supply power down or deficient electric fault occurs, its detection speed fast (the microsecond order of magnitude), the feature that real-time is good, practical are then that other detection methods cannot realize.
This utility model is applied to the power supply status monitoring (whether two independent power supply power supplys of main monitoring occur suddenly that voltage effective value reduces by a relatively large margin) of dual power supply equipment, the monitoring time just can be shortened to the time carrying out single AD conversion and implement the time sum calculated, when current technology, this time can measure by microsecond, this impact that dual power supply equipment is changed the time would is that very little, thus realizing power supply state is detected fast and accurately.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is the circuit theory diagrams of microprocessor in accompanying drawing 1.
Accompanying drawing 3 is the schematic diagram of signal conversion and data acquisition circuit in accompanying drawing 1.
Accompanying drawing 4 is the structural representation of human-computer interaction device of the present utility model.
Detailed description of the invention:
Embodiment 1:
A kind of three-phase symmetrical alternating current parameter device for fast detecting, its composition includes: instrument chassis 1, described instrument chassis is internally installed circuit board 2, described circuit board is provided with microcontroller 3, described microcontroller is respectively with signal conversion and data acquisition circuit 7, display drives and key control circuit 4, memorizer 5 and communicating circuit electrically connect, and described signal conversion and data acquisition circuit and 8, one group of current conversion circuit 9 of one group of voltage conversion circuit electrically connect.
Embodiment 2:
Three-phase symmetrical alternating current parameter device for fast detecting according to embodiment 1, described microcontroller includes single-chip microcomputer, intervalometer, electric power monitor, and the model of described single-chip microcomputer is MSP430.
Embodiment 3:
Three-phase symmetrical alternating current parameter device for fast detecting according to embodiment 1, described signal conversion and data acquisition circuit include Multi-path synchronous converter, photoelectric isolating circuit, and the model of described Multi-path synchronous converter is ADS8556.
Embodiment 4:
Three-phase symmetrical alternating current parameter device for fast detecting according to embodiment 1, equipped with human-computer interaction device 10 and signal input terminal 11 outside described instrument chassis, described human-computer interaction device includes LCD display 12 and operation button 13, and described LCD display, described operation button electrically connect with described display driving and key control circuit respectively.
Claims (4)
1. a three-phase symmetrical alternating current parameter device for fast detecting, its composition includes: instrument chassis, it is characterized in that: described instrument chassis is internally installed circuit board, described circuit board is provided with microcontroller, described microcontroller electrically connects with signal conversion and data acquisition circuit, display driving and key control circuit, memorizer and communicating circuit respectively, and described signal conversion and data acquisition circuit and one group of voltage conversion circuit, one group of current conversion circuit electrically connect.
2. three-phase symmetrical alternating current parameter device for fast detecting according to claim 1, is characterized in that: described microcontroller includes single-chip microcomputer, intervalometer, electric power monitor, the model of described single-chip microcomputer is MSP430.
3. three-phase symmetrical alternating current parameter device for fast detecting according to claim 1, it is characterized in that: described signal conversion and data acquisition circuit include Multi-path synchronous converter, photoelectric isolating circuit, and the model of described Multi-path synchronous converter is ADS8556.
4. three-phase symmetrical alternating current parameter device for fast detecting according to claim 1, it is characterized in that: equipped with human-computer interaction device and signal input terminal outside described instrument chassis, described human-computer interaction device includes LCD display and operation button, and described LCD display, described operation button electrically connect with described display driving and key control circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109367.1U CN205353325U (en) | 2016-02-03 | 2016-02-03 | Quick detection device of three -phase symmetrical alternating current electrical parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620109367.1U CN205353325U (en) | 2016-02-03 | 2016-02-03 | Quick detection device of three -phase symmetrical alternating current electrical parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353325U true CN205353325U (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620109367.1U Expired - Fee Related CN205353325U (en) | 2016-02-03 | 2016-02-03 | Quick detection device of three -phase symmetrical alternating current electrical parameter |
Country Status (1)
| Country | Link |
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| CN (1) | CN205353325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089124A (en) * | 2018-03-04 | 2018-05-29 | 哈尔滨朗昇电气股份有限公司 | Double power supply converting switch actuating characteristic test system and test method |
-
2016
- 2016-02-03 CN CN201620109367.1U patent/CN205353325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089124A (en) * | 2018-03-04 | 2018-05-29 | 哈尔滨朗昇电气股份有限公司 | Double power supply converting switch actuating characteristic test system and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170203 |