CN203660504U - Self-induction protective device used for transformer - Google Patents
Self-induction protective device used for transformer Download PDFInfo
- Publication number
- CN203660504U CN203660504U CN201320888711.8U CN201320888711U CN203660504U CN 203660504 U CN203660504 U CN 203660504U CN 201320888711 U CN201320888711 U CN 201320888711U CN 203660504 U CN203660504 U CN 203660504U
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- transformer
- oil pressure
- signal output
- inserting tube
- cabinet
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- Expired - Fee Related
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- Housings And Mounting Of Transformers (AREA)
- Protection Of Transformers (AREA)
Abstract
The utility model discloses a self-induction protective device used for a transformer. The self-induction protective device comprises a transformer box body, a detection assembly and a protective assembly. The detection assembly comprises a base, an exploring tube, a temperature sensor and an oil pressure sensor. The base is installed on a box cover of the transformer box body, and the bottom part of the base is provided with the exploring tube. The other end of the exploring tube extends into the transformer box body and is immersed in transformer oil. The temperature sensor and the oil pressure sensor are installed on the other end of the exploring tube and are respectively used for detecting the temperature and pressure of the transformer oil. The protective assembly comprises a comparator, a relay and a control switch. A signal input end of the comparator is connected with signal output ends of the temperature sensor and the oil pressure sensor, and a signal output end of the comparator is connected with the relay. A signal output end of the relay is electrically connected with the control switch. The control switch is installed in an input power supply circuit of the transformer box body and is used for controlling opening and closing of the input power supply circuit.
Description
Technical field
The utility model relates to automatic control equipment field, specifically, specially refers to a kind of self-induction type protective device for transformer.
Background technology
At present popular power transformer on the market, in the process using, cannot understand and grasp oil level and temperature in transformer, under normal circumstances, people can only, with sensation, grasp oil mass and the temperature in transformer with experience, therefore usually or excess Temperature (exceed the normal working temperature of transformer) too low because of oil pressure in transformer, and the load of transformer is increased, and cause the short circuit of transformer or burn out whole transformer, affect the useful life of transformer.
Utility model content
The technical problem that the utility model actual needs solves is: for the deficiencies in the prior art, provide a kind of self-induction type protective device for transformer, to realize the automation that transformer internal environment is detected.
The technical problem that the utility model solves can realize by the following technical solutions:
For a self-induction type protective device for transformer, comprise transformer-cabinet, it is characterized in that: also comprise detection components and protection assembly;
Described detection components comprises pedestal, inserting tube, temperature sensor and oil pressure sensor; Described pedestal is installed on the case lid of transformer-cabinet, and the bottom of pedestal is provided with inserting tube; The inside of described inserting tube has the hollow structure axially running through, and one end of inserting tube is connected by integral structure with pedestal, and the other end of inserting tube stretches into transformer-cabinet inside and immerses in transformer oil; Described temperature sensor and oil pressure sensor are installed on the other end of inserting tube, are respectively used to detect temperature and the oil pressure of transformer oil;
Described protection assembly comprises comparator, relay and control switch; The signal input part of described comparator is connected with the signal output part of temperature sensor and oil pressure sensor, the signal output part of comparator connects relay, the signal output part of described relay is electrically connected with control switch, described control switch is installed on the input power circuit of transformer-cabinet, for the opening and closing of control inputs power circuit.
Further, the surface of described transformer-cabinet is provided with instrument, and described instrument is connected with the signal output part of temperature sensor and oil pressure sensor.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. by detection components and protection assembly are set, extended the useful life of transformer.
2. by the instrument being connected with detection components is set, can get information about the situation of transformer-cabinet inside.
Brief description of the drawings
Fig. 1 is the structured flowchart of self-induction type protective device described in the utility model.
Number in the figure explanation: temperature sensor 110, oil pressure sensor 120, comparator 130, relay 140, control switch 150.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
Referring to Fig. 1, a kind of self-induction type protective device for transformer described in the utility model, comprises transformer-cabinet, also comprises detection components and protection assembly.
Described detection components comprises pedestal, inserting tube, temperature sensor 110 and oil pressure sensor 120; Described pedestal is installed on the case lid of transformer-cabinet, and the bottom of pedestal is provided with inserting tube; The inside of described inserting tube has the hollow structure axially running through, and one end of inserting tube is connected by integral structure with pedestal, and the other end of inserting tube stretches into transformer-cabinet inside and immerses in transformer oil; Described temperature sensor 110 and oil pressure sensor 120 are installed on the other end of inserting tube, are respectively used to detect temperature and the oil pressure of transformer oil;
Described protection assembly comprises comparator 130, relay 140 and control switch 150; The signal input part of described comparator 130 is connected with the signal output part of temperature sensor 110 and oil pressure sensor 120, the signal output part of comparator 130 connects relay 140, the signal output part of described relay 140 is electrically connected with control switch 150, described control switch 150 is installed on the input power circuit of transformer-cabinet, for the opening and closing of control inputs power circuit.
It is pointed out that the situation in order to get information about transformer-cabinet inside, the surface of described transformer-cabinet is provided with instrument, and described instrument is connected with the signal output part of temperature sensor 110 and oil pressure sensor 120.
Operation principle of the present utility model is as follows:
Temperature sensor 110 and oil pressure sensor 120 detect temperature and the oil pressure of transformer oil in real time, and be converted into analog signal and send to comparator 130, comparator 130 receives after analog signal, the reference voltage of itself and comparator 130 inside is compared, if analog signal is greater than reference voltage, temperature and oil pressure that transformer-cabinet inside is described are too high, comparator 130 transmits control signal to relay 140, and relay 140 is by the input power circuit of control switch 150 disconnecting transformer casings.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. for a self-induction type protective device for transformer, comprise transformer-cabinet, it is characterized in that: also comprise detection components and protection assembly;
Described detection components comprises pedestal, inserting tube, temperature sensor and oil pressure sensor; Described pedestal is installed on the case lid of transformer-cabinet, and the bottom of pedestal is provided with inserting tube; The inside of described inserting tube has the hollow structure axially running through, and one end of inserting tube is connected by integral structure with pedestal, and the other end of inserting tube stretches into transformer-cabinet inside and immerses in transformer oil; Described temperature sensor and oil pressure sensor are installed on the other end of inserting tube, are respectively used to detect temperature and the oil pressure of transformer oil;
Described protection assembly comprises comparator, relay and control switch; The signal input part of described comparator is connected with the signal output part of temperature sensor and oil pressure sensor, the signal output part of comparator connects relay, the signal output part of described relay is electrically connected with control switch, described control switch is installed on the input power circuit of transformer-cabinet, for the opening and closing of control inputs power circuit.
2. the self-induction type protective device for transformer according to claim 1, is characterized in that: the surface of described transformer-cabinet is provided with instrument, and described instrument is connected with the signal output part of temperature sensor and oil pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888711.8U CN203660504U (en) | 2013-12-31 | 2013-12-31 | Self-induction protective device used for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888711.8U CN203660504U (en) | 2013-12-31 | 2013-12-31 | Self-induction protective device used for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660504U true CN203660504U (en) | 2014-06-18 |
Family
ID=50926858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320888711.8U Expired - Fee Related CN203660504U (en) | 2013-12-31 | 2013-12-31 | Self-induction protective device used for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109792144A (en) * | 2016-06-28 | 2019-05-21 | 品质控制有限责任公司 | Rapid pressure rise detection and management system |
| CN109980602A (en) * | 2019-05-07 | 2019-07-05 | 北京中瑞和电气有限公司 | A kind of transformer digital self-adapting protective device and method based on pressure characteristic |
| CN110061473A (en) * | 2019-05-07 | 2019-07-26 | 北京中瑞和电气有限公司 | A kind of transformer digital protection equipment and method based on pressure list amount information |
-
2013
- 2013-12-31 CN CN201320888711.8U patent/CN203660504U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109792144A (en) * | 2016-06-28 | 2019-05-21 | 品质控制有限责任公司 | Rapid pressure rise detection and management system |
| CN109792144B (en) * | 2016-06-28 | 2020-08-21 | 品质控制有限责任公司 | Rapid pressure rise detection and management system |
| CN109980602A (en) * | 2019-05-07 | 2019-07-05 | 北京中瑞和电气有限公司 | A kind of transformer digital self-adapting protective device and method based on pressure characteristic |
| CN110061473A (en) * | 2019-05-07 | 2019-07-26 | 北京中瑞和电气有限公司 | A kind of transformer digital protection equipment and method based on pressure list amount information |
| CN110061473B (en) * | 2019-05-07 | 2021-09-07 | 北京中瑞和电气有限公司 | Digital protection device and method for transformer based on pressure single quantity information |
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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: 20140618 Termination date: 20161231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |