CN203455417U - Generator synchronous indicating circuit - Google Patents
Generator synchronous indicating circuit Download PDFInfo
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- CN203455417U CN203455417U CN201320576148.0U CN201320576148U CN203455417U CN 203455417 U CN203455417 U CN 203455417U CN 201320576148 U CN201320576148 U CN 201320576148U CN 203455417 U CN203455417 U CN 203455417U
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- circuit
- light emitting
- emitting diode
- indicating circuit
- rectification circuit
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Abstract
The utility model relates to a generator synchronous indicating circuit, comprising two transformers respectively correspondingly connecting with different generating sets, a rectification circuit and an indication circuit. The secondary windings of the two transformers are in series connection and are then in connection with the input terminal of the rectification circuit; the output terminal of the rectification circuit is in connection with the indication circuit; the indication circuit is composed of a current-limiting resistor and a light emitting diode in series connection. According to the utility model, the secondary windings are in series connection, and the output voltage of the two generating sets after the depressurization of the transformers is the voltage sum of the two generating sets, and accordingly, whether the power generated by the two generating sets is in-phase can be determined according to the brightness degree of the light emitting diode; if in-phase, the light emitting diode is the brightest and if antiphase, the light emitting diode does not give out light; meanwhile, whether the generating frequencies are consistent can be determined according to the brightness change speed of the light emitting diode; if the frequencies are the same, the brightness of the light emitting diode does not change. The generator synchronous indicating circuit is very convenient to use.
Description
Technical field
The utility model relates to a kind of indicating circuit, particularly the synchronous indicating circuit of a kind of generator.
Background technology
In thering is standby power system, after mains failure, standby power supply electric set electric supply, but because load in some situation is larger, a unit cannot provide enough power supplies, at this moment just needs many units parallel operation simultaneously.But two-way alternating current arbitrarily can not be directly parallel in together, because there is voltage difference, difference on the frequency, phase differential in two-way alternating current, if can produce very large electric current during the larger parallel connection of difference, unit can be burnt out, the smaller the better in time difference value in parallel, but due to not indication, be difficult to determine whether meet use standard.
Utility model content
The purpose of this utility model is to provide a kind of synchronous indicating circuit for whether unit in parallel is synchronously indicated.
To achieve these goals, the technical scheme that the utility model adopts is: the synchronous indicating circuit of a kind of generator, comprise two transformers, rectification circuit and indicating circuits being respectively used to from the corresponding connection of different genset, described in two, after the series connection of the secondary winding of transformer, be connected with the input end of described rectification circuit, the output terminal of this rectification circuit connects described indicating circuit, and this indicating circuit consists of current-limiting resistance and light emitting diode serial connection.
Based on above-mentioned, described rectification circuit is the bridge rectifier circuit being comprised of four diodes.
The synchronous indicating circuit of the utility model, due to two secondary winding series connection, the output voltage of the voltage of two genset after transformer pressure-reducing is two secondary winding voltage sums, like this, can judge whether homophase of electricity that two genset send according to the bright degree of light emitting diode, homophase is the brightest, anti-phase light emitting diode is not luminous, the speed that can also change according to light emitting diode light and shade judges that whether the frequency of two genset generatings is consistent, when frequency is identical, the light and shade of light emitting diode will not change, this synchronous indicating circuit is very easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of the synchronous indicating circuit of generator in the utility model embodiment.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
The embodiment of the synchronous indicating circuit of a kind of generator, as shown in Figure 1, comprise two transformer T1, T2, rectification circuit and indicating circuits being respectively used to from the corresponding connection of different genset, described in two, after the series connection of the secondary winding of transformer T1, T2, be connected with the input end of described rectification circuit, rectification circuit is the bridge rectifier circuit being comprised of four diode D1, D2, D3, D4, the output terminal of this rectification circuit connects described indicating circuit, this indicating circuit consists of current-limiting resistance R1 and light emitting diode L serial connection, and the resistance of current limliting electricity R1 is 1000 Ω.
The present embodiment, due to two secondary winding series connection, the output voltage of the voltage of two genset after transformer pressure-reducing is two secondary winding voltage sums, like this, can judge whether homophase of electricity that two genset send according to the bright degree of light emitting diode, in-phase voltage is the highest, light emitting diode is the brightest the brightest, anti-phase light emitting diode is not luminous, the speed that can also change according to light emitting diode light and shade judges that whether the frequency of two genset generatings is consistent, when frequency is identical, the light and shade of light emitting diode will not change, this synchronous indicating circuit is very easy to use.
Two transformers voltage difference, can measure by impressed voltage table.When voltage difference hour, pilot lamp flicker frequency is slower and when the brightest, get final product manual closing operation.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (2)
1. the synchronous indicating circuit of generator, it is characterized in that: comprise two transformers, rectification circuit and indicating circuits being respectively used to from the corresponding connection of different genset, described in two, after the series connection of the secondary winding of transformer, be connected with the input end of described rectification circuit, the output terminal of this rectification circuit connects described indicating circuit, and this indicating circuit consists of current-limiting resistance and light emitting diode serial connection.
2. the synchronous indicating circuit of a kind of generator according to claim 1, is characterized in that: the bridge rectifier circuit of described rectification circuit for being comprised of four diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576148.0U CN203455417U (en) | 2013-09-18 | 2013-09-18 | Generator synchronous indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576148.0U CN203455417U (en) | 2013-09-18 | 2013-09-18 | Generator synchronous indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455417U true CN203455417U (en) | 2014-02-26 |
Family
ID=50135283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320576148.0U Expired - Fee Related CN203455417U (en) | 2013-09-18 | 2013-09-18 | Generator synchronous indicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329007A (en) * | 2017-06-09 | 2017-11-07 | 国网上海市电力公司 | A kind of universal secondary nuclear phase instrument for transformer station |
| CN108196138A (en) * | 2017-12-12 | 2018-06-22 | 神华集团有限责任公司 | Judge method, apparatus, system and the electronic equipment of phase |
-
2013
- 2013-09-18 CN CN201320576148.0U patent/CN203455417U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329007A (en) * | 2017-06-09 | 2017-11-07 | 国网上海市电力公司 | A kind of universal secondary nuclear phase instrument for transformer station |
| CN108196138A (en) * | 2017-12-12 | 2018-06-22 | 神华集团有限责任公司 | Judge method, apparatus, system and the electronic equipment of phase |
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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: 20140226 Termination date: 20210918 |