CN202583330U - Electromagnetic radiation detector used for transformer station - Google Patents
Electromagnetic radiation detector used for transformer station Download PDFInfo
- Publication number
- CN202583330U CN202583330U CN 201220243048 CN201220243048U CN202583330U CN 202583330 U CN202583330 U CN 202583330U CN 201220243048 CN201220243048 CN 201220243048 CN 201220243048 U CN201220243048 U CN 201220243048U CN 202583330 U CN202583330 U CN 202583330U
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- CN
- China
- Prior art keywords
- resistance
- power supply
- electromagnetic radiation
- triode
- transformer station
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an electromagnetic radiation detector used for a transformer station. The electromagnetic radiation detector includes a detection circuit, an amplifying circuit, an indicating circuit, and a power supply. The detection circuit is connected with the amplifying circuit. The amplifying circuit is connected with the indicating circuit. The power supply supplies power to each circuit. The electromagnetic radiation detector can be arranged in a main control chamber of the transformer station to monitor the electromagnetic radiation quantity in real time, if the electromagnetic radiation quantity exceeds a set value, a light emitting diode is lit to remind an operator on duty that the electromagnetic radiation quantity exceeds the set value, and related personnel can take corresponding treatment.
Description
Technical field
The utility model relates to a kind of electromagnetic radiation detector, relates in particular in a kind of transformer station and uses electromagnetic radiation detector.
Background technology
At present, transformer station's internal cause height piezoelectric device is many, and electromagnetic environment is abominable, though when building transformer station, taked some measures, reduces electromagnetic radiation as far as possible.But because operational outfit power and quantity can change because of load variations in the transformer station, amount of electromagnetic radiation also can change, therefore with regard to device that can detect electromagnetic radiation of needs.
The utility model content
The purpose of the utility model provides a kind of electromagnetic radiation detector, can monitor amount of electromagnetic radiation at any time.
The utility model adopts following technical proposals: use electromagnetic radiation detector in a kind of transformer station; Comprise testing circuit, amplifying circuit, indicating circuit and power supply; Testing circuit is connected with amplifying circuit, and amplifying circuit is connected with indicating circuit, and power supply is each circuit supply.
Described power series has the keying button.
Described testing circuit comprises telefault, first resistance; First adjustable resistance, FET, second resistance, first resistance, first end is connected with power supply, and second end is connected in series ground connection behind first adjustable resistance; The adjustable side of first adjustable resistance is connected with telefault first end; Second end of telefault is connected with the grid of FET, and the drain electrode of FET connects power supply through second resistance, and source electrode connects power supply.
Described amplifying circuit comprises first triode, first electric capacity, the 3rd resistance, the 4th resistance; The base stage of first triode is connected with the drain electrode of FET through first electric capacity; Collector connects power supply through the 4th resistance; Emitter connects power supply, and base stage also is connected with collector through the 3rd resistance.
Described indicating circuit comprises second triode, second electric capacity, the 5th resistance, the 6th resistance, second adjustable resistance, light emitting diode and the 7th resistance; The base stage of described second triode connects the collector of first triode through second electric capacity; Base stage also is connected with the adjustable side of second adjustable resistance; Second adjustable resistance, one end is connected in series the 5th resistance and inserts power supply; The other end is connected in series the 6th resistance and inserts power supply, and the emitter of second triode connects power supply, and collector connects the light emitting diode and the 7th resistance of serial connection.
The utility model can be arranged in transformer station's master-control room, monitors amount of electromagnetic radiation at any time, if electromagnetic radiation surpasses setting value, then lumination of light emitting diode reminds operator on duty's electromagnetic radiation to exceed standard, and makes corresponding personnel do handled.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
As shown in Figure 1, use electromagnetic radiation detector in a kind of transformer station of the utility model, comprise testing circuit, amplifying circuit, indicating circuit and power supply, power supply BT1 is each circuit supply, and described power supply BT1 is serially connected with and opens and closes button P1, and C1 is a filter capacitor.Described testing circuit comprises telefault L1, first resistance R 1; The first adjustable resistance RP1, FET T1, second resistance R, 2, the first resistance R, 1 first end are connected with power supply BT1, and second end is connected in series ground connection behind the first adjustable resistance RP1; The adjustable side of the first adjustable resistance RP1 is connected with telefault L1 first end; Second end of telefault L1 is connected with the grid of FET T1, and the drain electrode of FET T1 connects power supply BT1 through second resistance R 2, and source electrode connects power supply BT1.Described amplifying circuit comprises the first triode T2, first capacitor C 1, the 3rd resistance R 3, the 4th resistance R 4; The base stage of the first triode T2 is connected with the drain electrode of FET T1 through first capacitor C 1; Collector connects power supply BT1 through the 4th resistance R 4; Emitter connects power supply BT1, and base stage also is connected with collector through the 3rd resistance R 3.Described indicating circuit comprises the second triode T3, second capacitor C 2, the 5th resistance R 5, the 6th resistance R 6, the second adjustable resistance RP1, LED 1 and the 7th resistance R 7; The base stage of the described second triode T3 connects the collector of the first triode T2 through second capacitor C 2; Base stage also is connected with the adjustable side of the second adjustable resistance RP2; The second adjustable resistance RP2, one end is connected in series the 5th resistance R 5 and inserts power supply BT1; The other end is connected in series the 6th resistance R 6 and inserts power supply BT1, and the emitter of the second triode T3 connects power supply BT1, and collector connects the LED and the 7th resistance R 7 of serial connection.
During use; This device is placed in transformer station's master-control room; When telefault L1 senses electromagnetic radiation; To demonstrate the electromotive force through amplifying that produces among the L1 in the drain electrode of FET T1, the signal that is exaggerated that is presented on second resistance R, the 2 end pin is delivered to the first triode T2 via first capacitor C 1.Radiation intensity around the amplitude of the signal that appears on the collector of the first triode T2 depends on certainly; If when testing, can see the voltage waveform more than the 100mV at the first triode T2 collector with oscillograph.Second capacitor C 2 is coupling capacitances, and the signal after it amplifies the first triode T2 is delivered to the second triode T3, plays the effect of stopping direct current simultaneously again.The base stage of the second triode T3 is set up bias voltage through the 5th resistance R 5, the 6th R6 and the second adjustable resistance RP2.Regulate the second adjustable resistance RP2 and can make the second triode T3 reach radiationless cut off, thereby extinguish LED 1.When radiation reached certain intensity, the first triode T2 exported the negative half-wave of signal with the conducting second triode T3, thereby lights LED 1, but the electric current of resistance R 7 restricted passage LEDs 1.
Claims (5)
1. use electromagnetic radiation detector in a transformer station, it is characterized in that: comprise testing circuit, amplifying circuit, indicating circuit and power supply, testing circuit is connected with amplifying circuit, and amplifying circuit is connected with indicating circuit, and power supply is each circuit supply.
2. use electromagnetic radiation detector in the transformer station according to claim 1, it is characterized in that: described power series has the keying button.
3. use electromagnetic radiation detector in the transformer station according to claim 1 and 2; It is characterized in that: described testing circuit comprises telefault, first resistance; First adjustable resistance, FET, second resistance, first resistance, first end is connected with power supply, and second end is connected in series ground connection behind first adjustable resistance; The adjustable side of first adjustable resistance is connected with telefault first end; Second end of telefault is connected with the grid of FET, and the drain electrode of FET connects power supply through second resistance, and source electrode connects power supply.
4. use electromagnetic radiation detector in the transformer station according to claim 3; It is characterized in that: described amplifying circuit comprises first triode, first electric capacity, the 3rd resistance, the 4th resistance; The base stage of first triode is connected with the drain electrode of FET through first electric capacity; Collector connects power supply through the 4th resistance, and emitter connects power supply, and base stage also is connected with collector through the 3rd resistance.
5. use electromagnetic radiation detector in the transformer station according to claim 4; It is characterized in that: described indicating circuit comprises second triode, second electric capacity, the 5th resistance, the 6th resistance, second adjustable resistance, light emitting diode and the 7th resistance; The base stage of described second triode connects the collector of first triode through second electric capacity; Base stage also is connected with the adjustable side of second adjustable resistance, and second adjustable resistance, one end is connected in series the 5th resistance and inserts power supply, and the other end is connected in series the 6th resistance and inserts power supply; The emitter of second triode connects power supply, and collector connects the light emitting diode and the 7th resistance of serial connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243048 CN202583330U (en) | 2012-05-28 | 2012-05-28 | Electromagnetic radiation detector used for transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243048 CN202583330U (en) | 2012-05-28 | 2012-05-28 | Electromagnetic radiation detector used for transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583330U true CN202583330U (en) | 2012-12-05 |
Family
ID=47252731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243048 Expired - Fee Related CN202583330U (en) | 2012-05-28 | 2012-05-28 | Electromagnetic radiation detector used for transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285436A (en) * | 2020-11-08 | 2021-01-29 | 湖南省福晶电子有限公司 | Radiation detection system for electronic component |
-
2012
- 2012-05-28 CN CN 201220243048 patent/CN202583330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285436A (en) * | 2020-11-08 | 2021-01-29 | 湖南省福晶电子有限公司 | Radiation detection system for electronic component |
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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: 20121205 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |