CN203929900U - Simple and easy three-phase power supply phase sequence indicator - Google Patents
Simple and easy three-phase power supply phase sequence indicator Download PDFInfo
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- CN203929900U CN203929900U CN201420271351.1U CN201420271351U CN203929900U CN 203929900 U CN203929900 U CN 203929900U CN 201420271351 U CN201420271351 U CN 201420271351U CN 203929900 U CN203929900 U CN 203929900U
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Abstract
The utility model discloses a kind of simple and easy three-phase power supply phase sequence indicator, comprise binding clip, control circuit, pilot lamp, the utility model is by control circuit, pilot lamp integrated installation in a housing, and outside connects three binding clips, internal circuit does not need powered battery, very easy to use.Have and can simply judge fast whether three-phase power supply phase sequence meets electrical equipment, easy operating, detect the advantages such as reliable for effect.
Description
Technical field
The utility model relates to a kind of low-voltage power electrician testing tool, especially a kind of pick-up unit of three-phase power supply phase sequence.
Background technology
Be engaged in the personnel of low-voltage power work, in the time of work, often need to judge whether power phase meets the requirements.On market, existing phase-sequence detector circuit is more complicated, and cost is higher.
Utility model content
The technical problems to be solved in the utility model is for overcoming above-mentioned deficiency, and provide a kind of with low cost, make simple, economical and practical simple and easy three-phase power supply phase sequence indicator.
The utility model is taked following technical measures: a kind of simple and easy three-phase power supply phase sequence indicator, comprise binding clip, control circuit, pilot lamp, described control circuit comprises electric capacity, resistance, rectifier bridge, the first binding clip is connected with first electric capacity one end, the first electric capacity other end and the 3rd resistance, the second resistance are connected in series successively, and the second resistance other end connects the second binding clip; The two ends of the 3rd resistance connect the first rectifier bridge, are connected to the output terminal of the first rectifier bridge after the first resistance and the second capacitances in series, the second electric capacity two ends the first pilot lamp in parallel; The 3rd binding clip is connected with the 5th resistance one end, the 5th resistance other end is connected with the 6th resistance one end, the 6th resistance other end is connected with the tie point of the first electric capacity with the 3rd resistance, the two ends of the 6th resistance connect the second rectifier bridge, after the 4th resistance and the 3rd capacitances in series, be connected to the output terminal of the second rectifier bridge, the 3rd electric capacity two ends the second pilot lamp in parallel.
The utility model compared with prior art, has and can simply judge fast whether three-phase power supply phase sequence meets electrical equipment, easy operating, detects the advantages such as reliable for effect.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.
Fig. 2 is the utility model surface structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, a kind of simple and easy three-phase power supply phase sequence indicator, comprise binding clip, control circuit, pilot lamp, it is characterized in that described control circuit comprises electric capacity, resistance, rectifier bridge, the first binding clip A is connected with first capacitor C 1 one end, first capacitor C 1 other end and the 3rd resistance R 3, the second resistance R 2 are connected in series successively, and second resistance R 2 other ends connect the second binding clip B; The two ends of the 3rd resistance R 3 connect the first rectifier bridge UR1, are connected to the output terminal of the first rectifier bridge UR1 after the first resistance R 1 and the second capacitor C 2 series connection, second capacitor C 2 two ends the first pilot lamp HL1 in parallel, and the first pilot lamp HL1 is set to glow green; The 3rd binding clip C is connected with the 5th resistance R 5 one end, the 5th resistance R 5 other ends are connected with the 6th resistance R 6 one end, the 6th resistance R 6 other ends are connected with the tie point of the first capacitor C 1 with the 3rd resistance R 3, the two ends of the 6th resistance R 6 connect the second rectifier bridge UR2, the 4th resistance R 4 is connected to the output terminal of the second rectifier bridge UR2 after connecting with the 3rd capacitor C 3, the 3rd capacitor C 3 two ends the second pilot lamp HL2 in parallel, the second pilot lamp HL2 is set to red light.
When the utility model uses, 3 binding clips are connected to the three-phase supply of detected circuit, in the time of positive phase sequence, the voltage at the 3rd resistance R 3 two ends is after the first rectifier bridge UR1 rectification, charge to the second capacitor C 2 by the first resistance R 1 again, in the time that the voltage in the second capacitor C 2 reaches the starting voltage of the first pilot lamp HL1, the first pilot lamp HL1 lights and sends green glow, and the second capacitor C 2 is by the first pilot lamp HL1 electric discharge; Deng the voltage in the second capacitor C 2, during lower than certain value, the first pilot lamp HL1 extinguishes, and the second capacitor C 2 is charged again, discharged, and the first pilot lamp HL1 lights again, and so repeatedly, the first pilot lamp HL1 constantly flicker sends green light.In like manner, in the time being negative phase sequence, the second pilot lamp HL2 constantly flicker sends red light.Adjust the time constant of the first resistance R 1, the second capacitor C 2 and the 4th resistance R 4, the 3rd capacitor C 3, i.e. the flicker frequency of adjustable pilot lamp.The utility model is by control circuit, pilot lamp integrated installation in a housing, and housing connects three binding clips outward, and internal circuit does not need powered battery, very easy to use.
The utility model is not limited to above embodiment, and every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to protection domain of the present utility model equally.
Claims (1)
1. a simple and easy three-phase power supply phase sequence indicator, comprise binding clip, control circuit, pilot lamp, it is characterized in that described control circuit comprises electric capacity, resistance, rectifier bridge, the first binding clip is connected with first electric capacity one end, the first electric capacity other end and the 3rd resistance, the second resistance are connected in series successively, and the second resistance other end connects the second binding clip;
The two ends of the 3rd resistance connect the first rectifier bridge, are connected to the output terminal of the first rectifier bridge after the first resistance and the second capacitances in series, the second electric capacity two ends the first pilot lamp in parallel;
The 3rd binding clip is connected with the 5th resistance one end, the 5th resistance other end is connected with the 6th resistance one end, the 6th resistance other end is connected with the tie point of the first electric capacity with the 3rd resistance, the two ends of the 6th resistance connect the second rectifier bridge, after the 4th resistance and the 3rd capacitances in series, be connected to the output terminal of the second rectifier bridge, the 3rd electric capacity two ends the second pilot lamp in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271351.1U CN203929900U (en) | 2014-05-26 | 2014-05-26 | Simple and easy three-phase power supply phase sequence indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271351.1U CN203929900U (en) | 2014-05-26 | 2014-05-26 | Simple and easy three-phase power supply phase sequence indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929900U true CN203929900U (en) | 2014-11-05 |
Family
ID=51825697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271351.1U Expired - Fee Related CN203929900U (en) | 2014-05-26 | 2014-05-26 | Simple and easy three-phase power supply phase sequence indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291140A (en) * | 2015-06-02 | 2017-01-04 | 北京富特盘式电机有限公司 | A kind of phase-sequence indicator and there is the transformer oil pump of this phase-sequence indicator |
| CN106324373A (en) * | 2016-11-28 | 2017-01-11 | 国网山东省电力公司济宁供电公司 | Handhold phase sequence detecting device and phase sequence detecting system |
-
2014
- 2014-05-26 CN CN201420271351.1U patent/CN203929900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291140A (en) * | 2015-06-02 | 2017-01-04 | 北京富特盘式电机有限公司 | A kind of phase-sequence indicator and there is the transformer oil pump of this phase-sequence indicator |
| CN106324373A (en) * | 2016-11-28 | 2017-01-11 | 国网山东省电力公司济宁供电公司 | Handhold phase sequence detecting device and phase sequence detecting system |
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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 |
Granted publication date: 20141105 Termination date: 20150526 |
|
| EXPY | Termination of patent right or utility model |