CN104280153A - Temperature measurement device of oil-immersed transformer on-load tap-changer oil chamber - Google Patents
Temperature measurement device of oil-immersed transformer on-load tap-changer oil chamber Download PDFInfo
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- CN104280153A CN104280153A CN201410519111.3A CN201410519111A CN104280153A CN 104280153 A CN104280153 A CN 104280153A CN 201410519111 A CN201410519111 A CN 201410519111A CN 104280153 A CN104280153 A CN 104280153A
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- temperature
- oil
- oil chamber
- load tap
- bragg grating
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Abstract
The invention discloses a temperature measurement device of an oil-immersed transformer on-load tap-changer oil chamber. The temperature measurement device comprises a temperature measurement probe which is connected with a fiber bragg grating demodulation instrument through a cable, and the fiber bragg grating demodulation instrument is connected with an early-warning module. The temperature measurement probe comprises a fiber bragg grating temperature sensor and an insulating shell and is connected into a transformer tap-changer oil tank. The fiber bragg grating temperature sensor is a GYT600 ceramic single-end-type fiber bragg grating temperature sensor. The temperature of the transformer on-load tap-changer oil chamber can be accurately and fast measured, reliability is high, the internal temperature of the tap-changer oil chamber can be directly measured, faults can be reflected in time, and an early warning can be given.
Description
Technical field
The present invention relates to the thermometric of high-power transformer load tap changer oil chamber, belong to automatic fields of measurement, especially relate to a kind of temperature measuring equipment of oil-filled transformer load tap changer oil chamber.
Background technology
Present oil-filled transformer temp measuring system does not include on-load shunting switch, and shunting switch is the key component of ULTC, and the good on-load tap changer of operation and maintenance is the basis ensureing safe operation of power system.Load ratio bridging switch can not only steady load center voltage, and is contact network, adjustment load trend and improves without indispensable visual plants such as the distribution of work, and therefore, ULTC occupies definitely large ratio in the electrical network of China.But in the last few years, load ratio bridging switch was in operation abnormal conditions constantly, and tripping fault is also have generation.Shunting switch has independent grease chamber, usually shows as the abnormal rising of oil temperature, so the temperature measuring equipment being provided with on-load shunting switch is necessary before load ratio bridging switch fault.
Summary of the invention
The technical problem to be solved in the present invention is the temperature measuring equipment providing a kind of oil-filled transformer load tap changer oil chamber.
The technical solution adopted for the present invention to solve the technical problems is:
A temperature measuring equipment for oil-filled transformer load tap changer oil chamber, includes temperature probe, and temperature probe is connected with fiber Bragg grating (FBG) demodulator by optical cable, and fiber Bragg grating (FBG) demodulator connects warning module.
Described temperature probe comprises fiber-optical grating temperature sensor and insulation crust, temperature probe access sub-connecting switch of transformer fuel tank.
Described fiber-optical grating temperature sensor is GYT600 pottery monofocal fiber-optical grating temperature sensor.
Described insulation crust is ceramic pipe.
The beneficial effect that the present invention has is:
Structure of the present invention is simple, production cost is low, can implement thermometric accurately and rapidly, good reliability to on-load tap changers of transformers grease chamber, and directly can survey the timely faults of oil cabinet of tap switches internal temperature and send early warning.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
In figure: 1. sub-connecting switch of transformer fuel tank, 2. fiber-optical grating temperature sensor, 3. temperature probe, 4. insulation crust, 5. optical cable, 6. fiber Bragg grating (FBG) demodulator, 7. warning module.
Embodiment
As shown in Figure 1, the temperature measuring equipment of a kind of oil-filled transformer load tap changer oil chamber of the present invention, includes temperature probe 3, and temperature probe 3 is connected with fiber Bragg grating (FBG) demodulator 6 by optical cable 5, and fiber Bragg grating (FBG) demodulator connects warning module 7.
Described temperature probe 3 comprises fiber-optical grating temperature sensor 2 and insulation crust 4, and fiber-optical grating temperature sensor 2 is placed in insulation crust 4, and temperature probe 3 accesses sub-connecting switch of transformer fuel tank.By the fiber-optical grating temperature sensor in temperature probe, temperature is measured, information transmission be optical cable, the output terminal of warning module connecting fiber grating demodulation instrument, just sends early warning signal when temperature exceeds standard value.
Described fiber-optical grating temperature sensor is GYT600 pottery monofocal fiber-optical grating temperature sensor.
Described insulation crust is ceramic pipe.
Principle of work of the present invention is as follows:
Temperature probe 3 accesses in sub-connecting switch of transformer fuel tank 1, thermometric is carried out by the fiber-optical grating temperature sensor 2 in temperature probe 3, the transfer function of signal is realized by optical cable 5, the signal receiving that optical cable 5 transmits by fiber Bragg grating (FBG) demodulator 6, reflect the temperature of oil cabinet of tap switches, the temperature signal that warning module 7 exports according to fiber Bragg grating (FBG) demodulator 6 compares with default warning value, and when temperature exceedes warning value, warning module 7 sends early warning signal.
Claims (4)
1. a temperature measuring equipment for oil-filled transformer load tap changer oil chamber, it is characterized in that including temperature probe, temperature probe is connected with fiber Bragg grating (FBG) demodulator by optical cable, and fiber Bragg grating (FBG) demodulator connects warning module.
2. the temperature measuring equipment of a kind of oil-filled transformer load tap changer oil chamber according to claim 1, is characterized in that described temperature probe comprises fiber-optical grating temperature sensor and insulation crust, temperature probe access sub-connecting switch of transformer fuel tank.
3. the temperature measuring equipment of a kind of oil-filled transformer load tap changer oil chamber according to claim 1, is characterized in that described fiber-optical grating temperature sensor is GYT600 pottery monofocal fiber-optical grating temperature sensor.
4. the temperature measuring equipment of a kind of oil-filled transformer load tap changer oil chamber according to claim 1, is characterized in that described insulation crust is ceramic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519111.3A CN104280153A (en) | 2014-10-07 | 2014-10-07 | Temperature measurement device of oil-immersed transformer on-load tap-changer oil chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519111.3A CN104280153A (en) | 2014-10-07 | 2014-10-07 | Temperature measurement device of oil-immersed transformer on-load tap-changer oil chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104280153A true CN104280153A (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410519111.3A Pending CN104280153A (en) | 2014-10-07 | 2014-10-07 | Temperature measurement device of oil-immersed transformer on-load tap-changer oil chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104280153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016203810B1 (en) * | 2016-06-08 | 2017-12-21 | ETEL Limited | A transformer and method of manufacture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639386A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Load tap changer contact overheating fault diagnosis method and device |
| CN203259586U (en) * | 2013-04-07 | 2013-10-30 | 武汉格蓝若光电互感器有限公司 | Current on-line monitoring integrated system of on-load tap-changer |
| CN204255526U (en) * | 2014-10-07 | 2015-04-08 | 国家电网公司 | A kind of temperature measuring equipment of oil-filled transformer load tap changer oil chamber |
-
2014
- 2014-10-07 CN CN201410519111.3A patent/CN104280153A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639386A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Load tap changer contact overheating fault diagnosis method and device |
| CN203259586U (en) * | 2013-04-07 | 2013-10-30 | 武汉格蓝若光电互感器有限公司 | Current on-line monitoring integrated system of on-load tap-changer |
| CN204255526U (en) * | 2014-10-07 | 2015-04-08 | 国家电网公司 | A kind of temperature measuring equipment of oil-filled transformer load tap changer oil chamber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016203810B1 (en) * | 2016-06-08 | 2017-12-21 | ETEL Limited | A transformer and method of manufacture |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150114 |
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| RJ01 | Rejection of invention patent application after publication |