CN101577173A - Oil immersion type distribution transformer with winding temperature measurement function - Google Patents
Oil immersion type distribution transformer with winding temperature measurement function Download PDFInfo
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- CN101577173A CN101577173A CNA2008100370003A CN200810037000A CN101577173A CN 101577173 A CN101577173 A CN 101577173A CN A2008100370003 A CNA2008100370003 A CN A2008100370003A CN 200810037000 A CN200810037000 A CN 200810037000A CN 101577173 A CN101577173 A CN 101577173A
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Abstract
The invention relates to an oil immersion type distribution transformer with a winding temperature measurement function, comprising an oil tank filled with transformer oil and a transformer body immersed in the transformer oil, wherein the transformer body comprises an iron core and a winding installed in an iron core window. The winding comprises a low-voltage winding and a high-voltage winding arranged outsides the low-voltage winding, a temperature measurement element is arranged on the winding surface of an oil channel of the low-voltage winding, and one end of the temperature measurement element is connected with a lead-out line. The invention reflects actual temperature of the three-phase winding of the transformer and sends real-time overtemperature alarm signals during operation, and achieves the purpose of remote transmission of the temperature and the alarm signals at the same time.
Description
Technical field
The present invention relates to oil immersion-type distribution transformer, relate in particular to a kind of oil immersion-type distribution transformer with winding temperature measurement function.
Background technology
Existing transformer winding and iron core in running can distribute a large amount of heats, these heats directly have influence on the stability and the useful life of transformer, in order to make transformer stable operation, usually need the Transformer Winding temperature is calculated, the heating of transformer mainly is that the electric current by winding causes, high and low pressure heating in winding amount is suitable, general temperature rise is also approaching, and radiating condition was poor in the middle of the low pressure winding was wrapped in by the high pressure winding, mainly was to measure the low pressure winding temperature so measure the temperature of winding.
The solution one that exists is to calculate the temperature of winding by surveying temperature of oil in transformer at present.Solution two is the transformer that has a power failure to be calculated the temperature of winding by the D.C. resistance of surveying winding.But solution one can not be correct the true temperature of reflection winding, solution two can not reflect the true temperature of winding in real time, and complicated operation.Simultaneously, scheme one, two all can not provide real-time overtemperature alarm signal.
Summary of the invention
In order to overcome the deficiency that prior art exists, the present invention aims to provide a kind of oil immersion-type distribution transformer with winding temperature measurement function, to be implemented in real-time reflection transformer three phase winding actual temperatures in service and to send real-time overtemperature alarm signal, realize the purpose of the remote transmission of temperature and alarm signal simultaneously.
A kind of oil immersion-type distribution transformer of the present invention with winding temperature measurement function, comprise the fuel tank that is filled with transformer oil, be immersed in described transformer by in the device body, wherein, the device body comprises unshakable in one's determination and is installed in the interior winding of described window unshakable in one's determination, and this winding is made up of the low pressure winding high pressure winding outer with being arranged on this low pressure winding, it is characterized in that: the winding surface at described low pressure winding oil duct is provided with a temperature element, and an end of this temperature element is connected with a lead-out wire.
In above-mentioned oil immersion-type distribution transformer, also comprise a control instrument that is arranged on the terminal box on the described fuel tank and is connected with described terminal box, and the terminal of described terminal box is connected with described lead-out wire by the connection lead with winding temperature measurement function.
In the above-mentioned oil immersion-type distribution transformer with winding temperature measurement function, described control instrument has a PORT COM.
Owing to adopted above-mentioned technical solution, the present invention passes through pre-buried temperature element in the low pressure winding of transformer body, thereby in the transformer true temperature that can reflect winding correctly, in real time in service; The control instrument that is connected with temperature element possesses real-time demonstration, overload alarm and communication function in addition, and real-time overtemperature alarm signal can be provided again, makes transformer can realize the remote transmission function of winding temperature demonstration in real time, overload alarm and signal.
Description of drawings
Fig. 1 is a kind of structural representation with oil immersion-type distribution transformer of winding temperature measurement function of the present invention;
Fig. 2 is the partial structurtes enlarged diagram of a phase winding in a kind of oil immersion-type distribution transformer with winding temperature measurement function of the present invention.
Embodiment
To be example with C phase low pressure winding below, the invention will be further described in conjunction with the accompanying drawings.
See also Fig. 1 and Fig. 2, the present invention, it is a kind of oil immersion-type distribution transformer 1 with winding temperature measurement function, comprise the fuel tank 3 that is filled with transformer oil, be immersed in transformer by in device body 2, be arranged on the fuel tank 3 terminal box 4 and by connecting the control instrument 6 that lead 5 is connected with terminal box 4, wherein, device body 2 comprises iron core 8 and is installed in the interior winding 9 of 8 windows unshakable in one's determination, and winding 9 is made up of low pressure winding 11 and the high pressure windings 10 that are arranged on outside the low pressure winding 11.Winding surface at the oil duct 12 of low pressure winding 11 is provided with a temperature element 13, and an end of temperature element 13 is connected with a lead-out wire 14, and the terminal 41 of terminal box 4 is connected with lead-out wire 14.Control instrument 6 has a PORT COM 7, and can adopt model in the present invention is the PORT COM of RS485 or alternate manner.
In the present invention, it is the element of Pt100 that temperature element 13 can adopt model, and terminal box 4 is the water proof type structure, and control instrument 6 can adopt the PJ numeral to show control instrument.
In sum, the present invention passes through pre-buried temperature element in the low pressure winding of transformer body, thereby in the transformer true temperature that can reflect winding correctly, in real time in service; The control instrument that is connected with temperature element possesses real-time demonstration, overload alarm and communication function in addition, and real-time overtemperature alarm signal can be provided again, makes transformer can realize the remote transmission function of winding temperature demonstration in real time, overload alarm and signal.
Below embodiment has been described in detail the present invention in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not constitute limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (3)
1. oil immersion-type distribution transformer with winding temperature measurement function, comprise the fuel tank that is filled with transformer oil, be immersed in described transformer by in the device body, wherein, the device body comprises unshakable in one's determination and is installed in the interior winding of described window unshakable in one's determination, and this winding is made up of the low pressure winding high pressure winding outer with being arranged on this low pressure winding, it is characterized in that: the winding surface at described low pressure winding oil duct is provided with a temperature element, and an end of this temperature element is connected with a lead-out wire.
2. the oil immersion-type distribution transformer with winding temperature measurement function according to claim 1, it is characterized in that: it also comprises a control instrument that is arranged on the terminal box on the described fuel tank and is connected with described terminal box by the connection lead, and the terminal of described terminal box is connected with described lead-out wire.
3. the oil immersion-type distribution transformer with winding temperature measurement function according to claim 2 is characterized in that: described control instrument has a PORT COM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100370003A CN101577173A (en) | 2008-05-06 | 2008-05-06 | Oil immersion type distribution transformer with winding temperature measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100370003A CN101577173A (en) | 2008-05-06 | 2008-05-06 | Oil immersion type distribution transformer with winding temperature measurement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101577173A true CN101577173A (en) | 2009-11-11 |
Family
ID=41272070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100370003A Pending CN101577173A (en) | 2008-05-06 | 2008-05-06 | Oil immersion type distribution transformer with winding temperature measurement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577173A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079357A1 (en) * | 2009-12-30 | 2011-07-07 | Eduardo Pedrosa Santos | System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and similar. |
| CN105355373A (en) * | 2015-12-04 | 2016-02-24 | 网为电气（邳州）有限公司 | Amorphous alloy transformer structure capable of effectively reducing temperature rise and improving overload capacity |
-
2008
- 2008-05-06 CN CNA2008100370003A patent/CN101577173A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079357A1 (en) * | 2009-12-30 | 2011-07-07 | Eduardo Pedrosa Santos | System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and similar. |
| CN105355373A (en) * | 2015-12-04 | 2016-02-24 | 网为电气（邳州）有限公司 | Amorphous alloy transformer structure capable of effectively reducing temperature rise and improving overload capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091111 |