CN202362353U - Potential indicator having self-check function - Google Patents
Potential indicator having self-check function Download PDFInfo
- Publication number
- CN202362353U CN202362353U CN2011204551560U CN201120455156U CN202362353U CN 202362353 U CN202362353 U CN 202362353U CN 2011204551560 U CN2011204551560 U CN 2011204551560U CN 201120455156 U CN201120455156 U CN 201120455156U CN 202362353 U CN202362353 U CN 202362353U
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- China
- Prior art keywords
- self
- check
- pilot lamp
- potential indicator
- transformer
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- Expired - Fee Related
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides a potential indicator having a self-check function. The potential indicator having the self-check function includes a panel and an indicating lamp. A self-check circuit is connected to the indicating lamp. Power source of the self-check circuit is provided by a second power source. The self-check circuit is provided with a self-check button. The self-check circuit is a secondary power source connection transformer. The output of the transformer forms a self-check return circuit through a rectifier bridge, a current-limiting resistor, a filter capacitor and the indicating lamp. The self-check button is arranged between the second power source and the transformer. In the utility model, by adopting the potential indicator having the self-check function in a switch apparatus, results of systematic faults can be judged correctly and the structure of the potential indicator having the self-check function is simple, thereby bringing great convenience for a user and improving the operational safety.
Description
Technical field
The utility model relates to a kind of switchgear technology, refers more particularly to a kind of potential indicator.
Background technology:
Potential indicator reflects the electrification in high voltage state in high-voltage electrical equipment, improve the equipment protection performance.Potential indicator only plays the electriferous state indicative function in equipment at present.Be that lamp representes that electricity is arranged when bright, representing when not working does not have electricity, yet in utilization and operation, when lamp occurring and do not work, can occur generally that system does not have electricity or pilot lamp burns out the two states reason.Owing to there is not self-checking function, can not differentiate system's short of electricity still is that pilot lamp burns out, thereby can not correctly in time judge the system failure.
The utility model content
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of potential indicator is provided, and has self-checking function, when pilot lamp does not work, can judge the quality of pilot lamp easily.
The technical scheme that technical matters adopted that solves is:
A kind of potential indicator with self-checking function comprises panel and pilot lamp, it is characterized in that on pilot lamp, connecting self-checking circuit, and the power supply of self-checking circuit is provided by secondary power supply, and self-checking circuit is provided with the self check button.When in original state, the self check button breaks off self-checking circuit, and secondary power supply is inoperative to pilot lamp.When operating indicator lamp does not work, press the self check button and carry out online detection, as pilot lamp to be shinny as usual when pressing the self check button, illustrative system does not have electricity, as when pressing self check button pilot lamp and not working, explains that the pilot lamp of indicator damages.
During practical implementation, self-checking circuit is that secondary power supply connects transformer, and transformer output forms the self check loop through rectifier bridge, current-limiting resistance, filter capacitor and pilot lamp, and the self check button is located between secondary power supply and the transformer.Secondary power supply is generally 220V, and through the step-down of transformer, the rectification of rectifier bridge then after the protection of current-limiting resistance and filter capacitor, offers the self check power supply of pilot lamp.Press the self check button, secondary power supply is given transformer-supplied, and transformer output is connected with pilot lamp through rectifier bridge, current-limiting resistance and filter capacitor etc.; If pilot lamp is normal, pilot lamp is bright, if pilot lamp is bad; Pilot lamp does not work, to reach the effect of self check.
During practical implementation, the self check button is located on the panel.
The utility model has increased the self check measuring ability on original potential indicator basis, possess online measuring ability.Increase independent pilot lamp self-checking circuit in the product indoor design; When operating indicator lamp does not work; Carry out online detection through the self check button on the indicator panel, as pilot lamp is shinny as usual when pressing the self check button, illustrative system does not have on time; As when pressing self check button pilot lamp and not working, explain that the pilot lamp of indicator damages.
The beneficial effect of the utility model is: can correctly judge reason to the system failure after in switchgear, adopting the self-checking function potential indicator, and simple in structure, for using, the user brings great convenience, improve safe operation property.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the circuit diagram of the utility model embodiment.
Among the figure 1, panel 2, pilot lamp 3, self check button B, transformer C, filter capacitor R, current-limiting resistance.
Embodiment:
In Fig. 1, a kind of potential indicator with self-checking function comprises panel, 1 pilot lamp 2 and self check button 3.In Fig. 2, I partly is the self-checking circuit partial circuit schematic diagram of the utility model embodiment, and II partly is prior art potential indicator circuit theory diagrams.The self-checking circuit partial circuit is that the secondary power supply of 220V connects transformer B, and transformer output forms the self check loop through rectifier bridge Q, current-limiting resistance R, filter capacitor C and pilot lamp 2, and self check button 3 is located at transformer B input end.
Connect self-checking circuit on the pilot lamp, the power supply of self-checking circuit is provided by secondary power supply, and self-checking circuit is provided with the self check button.When in original state, the self check button breaks off self-checking circuit, and secondary power supply is inoperative to pilot lamp.When operating indicator lamp does not work, press the self check button and carry out online detection, as pilot lamp to be shinny as usual when pressing the self check button, illustrative system does not have electricity, as when pressing self check button pilot lamp and not working, explains that the pilot lamp of indicator damages.
During practical implementation, secondary power supply is 220V, and through the step-down of transformer, the rectification of rectifier bridge then after the protection of current-limiting resistance and filter capacitor, offers the self check power supply of pilot lamp.Press the self check button, secondary power supply is given transformer-supplied, and transformer output is connected with pilot lamp through rectifier bridge, current-limiting resistance and filter capacitor etc.; If pilot lamp is normal, pilot lamp is bright, if pilot lamp is bad; Pilot lamp does not work, to reach the effect of self check.
Claims (3)
1. the potential indicator with self-checking function comprises panel and pilot lamp, it is characterized in that on pilot lamp, connecting self-checking circuit, and the power supply of self-checking circuit is provided by secondary power supply, and self-checking circuit is provided with the self check button.
2. a kind of potential indicator according to claim 1 with self-checking function; It is characterized in that self-checking circuit is that secondary power supply connects transformer; Transformer output forms the self check loop through rectifier bridge, current-limiting resistance, filter capacitor and pilot lamp, and the self check button is located between secondary power supply and the transformer.
3. a kind of potential indicator with self-checking function according to claim 1 and 2 is characterized in that the self check button is located on the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204551560U CN202362353U (en) | 2011-11-17 | 2011-11-17 | Potential indicator having self-check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204551560U CN202362353U (en) | 2011-11-17 | 2011-11-17 | Potential indicator having self-check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362353U true CN202362353U (en) | 2012-08-01 |
Family
ID=46573531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204551560U Expired - Fee Related CN202362353U (en) | 2011-11-17 | 2011-11-17 | Potential indicator having self-check function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362353U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891586A (en) * | 2014-05-16 | 2016-08-24 | 石家庄申澳电工安全工具有限公司 | Whole course self-check multi-gear voltage electroscope |
| CN108107358A (en) * | 2018-01-25 | 2018-06-01 | 国网江苏省电力有限公司徐州供电分公司 | Portable voltage mutual inductor auxiliary air closing detecting apparatus and method of discrimination |
| CN108287306A (en) * | 2018-01-25 | 2018-07-17 | 国网江苏省电力有限公司徐州供电分公司 | Detection voltage transformer secondary air switch system and fault distinguishing method in real time |
-
2011
- 2011-11-17 CN CN2011204551560U patent/CN202362353U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891586A (en) * | 2014-05-16 | 2016-08-24 | 石家庄申澳电工安全工具有限公司 | Whole course self-check multi-gear voltage electroscope |
| CN108107358A (en) * | 2018-01-25 | 2018-06-01 | 国网江苏省电力有限公司徐州供电分公司 | Portable voltage mutual inductor auxiliary air closing detecting apparatus and method of discrimination |
| CN108287306A (en) * | 2018-01-25 | 2018-07-17 | 国网江苏省电力有限公司徐州供电分公司 | Detection voltage transformer secondary air switch system and fault distinguishing method in real time |
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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: 20120801 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |