CN2482093Y - Anti-interference indicating lamp for power plant or transformer substation - Google Patents
Anti-interference indicating lamp for power plant or transformer substation Download PDFInfo
- Publication number
- CN2482093Y CN2482093Y CN 00257171 CN00257171U CN2482093Y CN 2482093 Y CN2482093 Y CN 2482093Y CN 00257171 CN00257171 CN 00257171 CN 00257171 U CN00257171 U CN 00257171U CN 2482093 Y CN2482093 Y CN 2482093Y
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- Prior art keywords
- interference
- indicating lamp
- diode
- lamp
- light emitting
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-interference indicating lamp used for an electric generating plant or a transformer station, and the indicating lamp is suitable for being used in each voltage class transformer station or the electric generating plant. The utility model comprises a lamp cap and a rear shade, a diode is connected between connection points of a light emitting diode and a switch or a relay in series. The interference of leakage current to a lamp light emitting diode is limited through the diode frontally cut off characteristic, so that the indicating lamp can correctly display the running state of the equipment, the anti interference is strong, the energy is saved, and the consumption is reduced. The misoperation caused by not correctly cognizing the equipment running state through the indicating lamp is effectively avoided, the equipment is protected, and the production is safe.
Description
The utility model relates to the operational outfit of power domain, and the anti-interference pilot lamp in particularly a kind of generating plant or transformer station is suitable for using in each electric pressure transformer station or generating plant.
Each electric pressure transformer station and generating plant often run into the situation that leakage current disturbed and existed leakage current at present, as: power plant disturbs, operation circuit is long etc.And the indicating lamp that uses in power plant or the substation operation equipment, meeting the situation of stating still can be effectively luminous, the correct running status of indicating equipment, as: ADII type and YDII type pilot lamp.ADII type and YDII type pilot lamp adopt light emitting diode, and most of electric energy has become luminous energy.This kind light fixture is because power consumption is extremely low, so under the situation that power plant disturbs and operation circuit is long, the leakage current that forms can not extinguish light fixture, and also normal operating conditions that just can not indicating equipment makes the correctly residing duty of judgment device of operating personnel.Easily cause maloperation, then bring operating personnel's the personal injury and the damage of equipment as maloperation.Other has XD5 type pilot lamp, adopts the illumination mode of the bright bulb of resistance drop pressure point, and most of electric energy has become heat energy, only has fraction to become luminous energy, though anti-interference still can, it is too high really consume energy, the genus obsolete product.
The purpose of this utility model is to make a kind of generating plant or the anti-interference pilot lamp of transformer station, make pilot lamp not luminous under the situation that the leakage current effect is arranged, only just luminous under the situation that normal current passes through, the running status of correct indicating equipment, personal injury and the device damage of avoiding maloperation to bring.Guiding operation personnel correctly are familiar with equipment running status, protection equipment, safety in production.
The present technique solution can reach above-mentioned purpose: the anti-interference pilot lamp of generating plant or transformer station, to form by light emitting diode, lamp holder and back cover etc., and diode is connected between light emitting diode and switch or the relay tip.
After using the utility model, because the function that diode has forward to end under the small-signal effect can stop leakage current to pass through light fixture effectively.Be connected on diode between light emitting diode and switch or the relay tip and be installed in the pilot lamp back cover; promptly utilized existing product; can reduce power consumption again; compare with existing indicating lamp, have strong interference immunity, indication obviously, the characteristics of energy-saving and cost-reducing, protection equipment, safety in production.
Accompanying drawing is an installation circuit diagram of the present utility model.
Below in conjunction with accompanying drawing the utility model is done further detailed description: the utility model is made up of light emitting diode 1, lamp holder and back cover etc., and referring to accompanying drawing, diode 2 is connected between light emitting diode 1 and switch or the relay tip 3.Connection finishes, and will be installed in the back cover of pilot lamp with the diode 2 after light emitting diode 1 is connected.In normal working conditions, positive and negative power supply is added in this installation circuit two ends, pilot lamp is normally luminous, and after switch or relay tip 3 disconnections, only have under the effect of leakage or interference current, because not reaching diode 2 forwards opens electric current as yet, diode 2 is in cut-off state, thereby effectively stop leakage current to pass through, light emitting diode 1 is not luminous, and promptly pilot lamp does not work.So can utilize the positive cut-off characteristics of diode, the restriction leakage current reaches the running status of correct indicating equipment to the interference of pilot lamp, avoids taking place the purpose of misoperation fault.
Claims (2)
1, the anti-interference pilot lamp of generating plant or transformer station comprises lamp holder and back cover, it is characterized in that diode (2) is connected between light emitting diode (1) and switch or the relay tip (3).
2, the anti-interference pilot lamp of generating plant according to claim 1 or transformer station after it is characterized in that diode (2) and light emitting diode (1) being connected, is installed in the pilot lamp back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257171 CN2482093Y (en) | 2000-12-19 | 2000-12-19 | Anti-interference indicating lamp for power plant or transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257171 CN2482093Y (en) | 2000-12-19 | 2000-12-19 | Anti-interference indicating lamp for power plant or transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482093Y true CN2482093Y (en) | 2002-03-13 |
Family
ID=33613738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00257171 Expired - Fee Related CN2482093Y (en) | 2000-12-19 | 2000-12-19 | Anti-interference indicating lamp for power plant or transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482093Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754884A (en) * | 2023-08-22 | 2023-09-15 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
-
2000
- 2000-12-19 CN CN 00257171 patent/CN2482093Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116754884A (en) * | 2023-08-22 | 2023-09-15 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
| CN116754884B (en) * | 2023-08-22 | 2023-11-10 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |