CN201690218U - Transformer running monitoring device - Google Patents
Transformer running monitoring device Download PDFInfo
- Publication number
- CN201690218U CN201690218U CN2010201274792U CN201020127479U CN201690218U CN 201690218 U CN201690218 U CN 201690218U CN 2010201274792 U CN2010201274792 U CN 2010201274792U CN 201020127479 U CN201020127479 U CN 201020127479U CN 201690218 U CN201690218 U CN 201690218U
- Authority
- CN
- China
- Prior art keywords
- transformer
- circuit
- diode
- monitoring device
- triode
- Prior art date
- 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
Links
Images
Abstract
The utility model provides a transformer running monitoring device mainly comprising an overload protection device on a transformer. The transformer is internally provided with an overload protection circuit; the position of a transformer oil lower limit value is provided with a liquid level switch; the transformer is internally provided with a thermistor; in the overload protection circuit, capacitors C1 and C2, the resistor R1, a voltage-regulator diode DW1 and a diode D1 form a power circuit; a thermonistor R4, a potentiometer W1 and a diode D2 form a temperature sensing circuit; the liquid level switch K and a diode D3 form a transformer oil quantity sensing circuit; a resistor R2, a voltage-regulator diode DW2, a triode T1, a loudspeaker L and an indicating lamp B form an alarm circuit; a potentiometer W2, a resistor R3, a capacitor C3, a voltage-regulator diode DW3, a triode T2 and a relay J form a control circuit; and two ends of a normal close contact J-1 of the relay are connected to a transformer control main circuit. The transformer running monitoring device is simple in structure, and can eliminate fire risks instantaneously so as to ensure the normal running of the transformer.
Description
Technical field:
The utility model relates to a kind of protection equipment for transformer.
Background technology:
Transformer is in running, and transformer oil meeting natural wastage if its quantity reduces to a certain degree and not interpolation in time, may cause equipment to shut down, influence production, and severe patient causes fire hazard.
Summary of the invention:
The purpose of this utility model is to provide a kind of transformer operation monitoring device, can effectively avoid the deficiencies in the prior art.
The purpose of this utility model is achieved in that
Transformer operation monitoring device mainly is made up of the overload protection arrangement on the transformer, and overload protecting circuit is installed in the transformer, and the low limit value place of transformer oil is equipped with surface cock, and thermistor is installed in the transformer.
Overload protecting circuit is formed power circuit by capacitor C 1, C2, resistance R 1, voltage stabilizing didoe DW1, diode D1; Thermistor R4, potentiometer W1, diode D2 form the temperature sense circuit; Surface cock K, diode D3 form transformer oil mass sensor circuit; Resistance R 2, voltage stabilizing didoe DW2, triode T1, loudspeaker L and indicator light B form warning circuit; Potentiometer W2, resistance R 3, capacitor C 3, voltage stabilizing didoe DW3, triode T2, relay J are formed control circuit; The two ends of the normally-closed contact J-1 of relay are connected to transformer control major loop.
Compared with prior art, the utility model has the advantages that simple in structurely, can eliminate fire hazard, guaranteed the transformer normal operation in moment.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
1 is transformer among the figure, and 2 is overload protecting circuit, and 3 is thermistor, and 4 is surface cock, and 5 is power circuit, and 6 is the temperature sense circuit, and 7 is the oil mass sensor circuit, and 8 is warning circuit, and 9 is control circuit.
Embodiment
Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2: transformer operation monitoring device, mainly form by the overload protection arrangement on the transformer 1, overload protecting circuit 2 is installed in the transformer 1, the low limit value place of transformer oil is equipped with surface cock 4, and thermistor 3 is installed in the transformer 1.
Operation principle:
1, at ordinary times: thermistor 3R4 is high resistance, and surface cock 4K is an off-state, triode T1, all not conductings of T2 at this moment, and warning circuit 8 can not get power supply and does not work; Control circuit 9 is not worked yet; The transformer operate as normal.
2, when transformer when temperature raises for a certain reason, thermistor 3 R4 resistance values reduce, supply voltage punctures voltage stabilizing didoe DW2 through thermistor 3 R4, potentiometer W1, diode D2, resistance R 2, thus triode T1 conducting, and warning circuit 8 obtains power supply and sends sound and light alarm.
3, when transformer for a certain reason and transformer oil when reducing, surface cock 4K changes conducting state into, and at this moment, supply voltage punctures voltage stabilizing didoe DW2 through surface cock 4K, diode D3, resistance R 4, thereby triode T2 conducting, warning circuit 8 obtains power supply and sends sound and light alarm.
When above-mentioned operation principle 2,3 situations have one to take place; its signal also charges to capacitor C 3 through diode D4, potentiometer W2; through behind the certain hour; when capacitor C 3 is charged to the puncture voltage of voltage stabilizing didoe DW3; triode T2 conducting, relay J adhesive; the contact J-1 of J disconnects, thereby makes transformer out of service, reaches protective effect.
Claims (2)
1. transformer operation monitoring device; mainly form by the overload protection arrangement on the transformer (1); it is characterized in that being equipped with in the transformer (1) overload protecting circuit (2), the low limit value place of transformer oil is equipped with surface cock (4), and thermistor (3) is installed in the transformer (1).
2. transformer operation monitoring device according to claim 1 is characterized in that overload protecting circuit (2) forms power circuit (5) by capacitor C 1, C2, resistance R 1, voltage stabilizing didoe DW1, diode D1; Thermistor R4, potentiometer W1, diode D2 form temperature sense circuit (6); Surface cock K, diode D3 form transformer oil mass sensor circuit (7); Resistance R 2, voltage stabilizing didoe DW2, triode T1, loudspeaker L and indicator light B form warning circuit (8); Potentiometer W2, resistance R 3, capacitor C 3, voltage stabilizing didoe DW3, triode T2, relay J are formed control circuit (9); The two ends of the normally-closed contact J-1 of relay are connected to transformer control major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201274792U CN201690218U (en) | 2010-03-10 | 2010-03-10 | Transformer running monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201274792U CN201690218U (en) | 2010-03-10 | 2010-03-10 | Transformer running monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201690218U true CN201690218U (en) | 2010-12-29 |
Family
ID=43378496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201274792U Expired - Fee Related CN201690218U (en) | 2010-03-10 | 2010-03-10 | Transformer running monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201690218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269041A (en) * | 2011-08-26 | 2011-12-07 | 龚文资 | Alarm circuit for poor heat radiation of automobile engine water tank |
| CN102593792A (en) * | 2012-03-02 | 2012-07-18 | 常州特种变压器有限公司 | Built-in circuit breaker for oil-immersed transformer |
| CN117410951A (en) * | 2023-10-31 | 2024-01-16 | 云南电力试验研究院(集团)有限公司 | Lightning protection device and method for residual current circuit breaker |
-
2010
- 2010-03-10 CN CN2010201274792U patent/CN201690218U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269041A (en) * | 2011-08-26 | 2011-12-07 | 龚文资 | Alarm circuit for poor heat radiation of automobile engine water tank |
| CN102593792A (en) * | 2012-03-02 | 2012-07-18 | 常州特种变压器有限公司 | Built-in circuit breaker for oil-immersed transformer |
| CN117410951A (en) * | 2023-10-31 | 2024-01-16 | 云南电力试验研究院(集团)有限公司 | Lightning protection device and method for residual current circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201690218U (en) | Transformer running monitoring device | |
| CN202204893U (en) | On-line leakage current monitoring system | |
| CN203241485U (en) | Online diagnosis system for state of super-capacitor module | |
| CN204131117U (en) | A kind of intelligent surge protector | |
| CN203434589U (en) | Distribution box protective module | |
| CN202535056U (en) | Intelligent power supply surge protector | |
| CN201993871U (en) | Novel fire detector | |
| CN205583643U (en) | Lightning safety monitoring protection device | |
| CN205375089U (en) | Take power supply switching circuit of isolation control function | |
| CN204290270U (en) | The quick down circuit of a kind of driver accessory power supply | |
| CN205283083U (en) | Automatic relay protection ware of outage | |
| CN204465585U (en) | A kind of network switch with detection and warning function | |
| CN204064514U (en) | Thermal sensor | |
| CN203561660U (en) | Special portable debugging power supply device for voltage measurement monitor | |
| CN203338504U (en) | Fire disaster alarm system of low-voltage switch cabinet | |
| CN105096538A (en) | Gas leakage alarm device for gas car | |
| CN204131108U (en) | A kind of low power-consumption intelligent surge protector | |
| CN203707739U (en) | Leakage protector with self-check function | |
| CN203037318U (en) | Magnetism displacement switch sensing device | |
| CN202405748U (en) | Novel aftercurrent detector | |
| CN203720980U (en) | Temperature-sensing alarm circuit and temperature-sensing plug and socket | |
| CN203312793U (en) | Lightning protection board for optical receiver | |
| CN205375122U (en) | Super temperature short message alarm | |
| CN202351295U (en) | Wireless temperature sensing alarming device for kilowatt-hour meter | |
| CN202178562U (en) | Leakage monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20110310 |