CN102359833A - Temperature rise test device of winding thermometer for transformer - Google Patents

Temperature rise test device of winding thermometer for transformer Download PDF

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Publication number
CN102359833A
CN102359833A CN2011102102580A CN201110210258A CN102359833A CN 102359833 A CN102359833 A CN 102359833A CN 2011102102580 A CN2011102102580 A CN 2011102102580A CN 201110210258 A CN201110210258 A CN 201110210258A CN 102359833 A CN102359833 A CN 102359833A
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CN
China
Prior art keywords
transformer
temperature
test
ict
temperature rise
Prior art date
Application number
CN2011102102580A
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Chinese (zh)
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CN102359833B (en
Inventor
姜东娇
任益
马志杰
王英荟
牟长信
管庆相
李树强
蔡之文
Original Assignee
东北电力科学研究院有限公司
杭州科宏仪器仪表有限公司
辽宁东科电力有限公司
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Priority to CN201110210258.0A priority Critical patent/CN102359833B/en
Publication of CN102359833A publication Critical patent/CN102359833A/en
Application granted granted Critical
Publication of CN102359833B publication Critical patent/CN102359833B/en

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Abstract

The invention relates to a temperature rise test device of a winding thermometer for a transformer. The temperature rise test device is characterized by mainly comprising a constant temperature groove and a constant current source, wherein the constant temperature groove can simulate the temperature of an oil surface of the transformer and consists of a temperature controller, a thermometer seat, a working cavity and a stirring mechanism; and the constant current source can simulate the output current of a current mutual inductor of the transformer and consists of a transformer, a circuit part, an output control device and an in circuit test (ICT) measuring device. The constant temperature groove and the constant current source are integrated, so the volume and the weight of equipment are greatly reduced, and a worker can operate and carry the temperature rise test device conveniently and the temperature rise device is applicable to industrial application.

Description

Transformer is with winding temperature gage temperature rise test device

Technical field

The present invention relates generally to the temperature rise test device of a kind of transformer with winding temperature gage, particularly relates to calibrating and the regulation experiment device of a kind of transformer with winding temperature gage.

Background technology

In the transformer use; Winding temperature gage comes the temperature of actual reflection transformer work winding through the analogue copper oil temperature difference; Heating wire heating cycle that it is built-in and the running parameter of transformer coupling; Therefore, how the to adjust temperature rise parameter of winding temperature gage is very crucial to accurate reflection winding temperature.The current domestic logical calibration cell of a Daepori that generally uses is as the reference oil temperature; With pressure regulator loading output current analog current transformer current; Need in the actual process of adjusting to prepare equipment such as calibration cell, pressure regulator, load, connecting line, supervisory instrument, for the staff, extremely not convenient; The current stability of pressure regulator loading output simultaneously is not good, can directly have influence on the accuracy of winding temperature gage yet; As adopt above equipment to transformer working site calibration or to adjust be difficulty very.

Summary of the invention

1, goal of the invention:

The present invention is directed to the problems referred to above, proposed a kind of transformer, integrated portable constant temperature groove and constant current source with winding temperature gage temperature rise test device, make winding temperature gage calibrating and adjust easier, accurate, quick.

2, technical scheme:

The present invention realizes through following technical scheme:

A kind of transformer is characterized in that with winding temperature gage temperature rise test device: but but this test unit mainly comprises the constant current source of the calibration cell analogue transformer current transformer output current of analogue transformer pasta temperature; Wherein calibration cell is made up of temperature controller, temperature meter base, working cavity and rabbling mechanism; Constant current source is made up of transformer, circuit part, output-controlling device and Ict measurement mechanism.

This test unit also comprises slave part, and slave part is: be arranged on the Ict output lead and the Ih measuring lead wire of this top, test unit back, be used to connect seized winding temperature gage; The Ih display device, Ict measurement mechanism calibration jack and the Ih that are arranged on this test unit panel show the calibration jack, and external calibrated lead.

The temperature controller of said calibration cell is arranged on the panel of this test unit, and this test unit top is provided with temperature meter base, and the temperature meter base below is provided with working cavity and rabbling mechanism.

The Ict measurement mechanism of said constant current source is arranged on the panel of this test unit, and is connected with circuit part, and the circuit part below is respectively equipped with transformer and output-controlling device.

This below, test unit back is provided with total power switch and supply socket; Also be provided with Ih on this test unit panel and measure conversion knob, Ict adjusting knob and electric current output switch.

Said Ict measurement mechanism and Ih display device can show that calibrating jack and the external standard amperemeters of external calibrated lead and voltage table calibrates through Ict measurement mechanism calibration jack, Ih.

The electric current of said constant current source output can be through the adjustment of Ict adjusting knob, and the electric current setting range is 0.5A ~ 5A.

This test unit is measured the conversion knob through Ih and is carried out the conversion between voltage and the current measurement.

This test unit comprises respectively 1 of calibration cell and constant current source at least.

3, advantage and effect:

This transformer that the present invention proposes has following advantage with winding temperature gage temperature rise test device:

(1) transformer can guarantee oily temperature calibration cell temperature constant of analogue transformer with winding temperature gage temperature rise test device, and reliable and stable electric current output can be provided again;

(2) integrate calibration cell and constant current source, reduced the volume and weight of equipment significantly;

(3) be equipped with a complete set of wiring and control survey equipment, made things convenient for the staff to operate and carry.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the present invention's synoptic diagram when using;

Fig. 4 is the present invention's synoptic diagram when using.

Description of reference numerals:

1-Ih measures the conversion knob; 2-Ih shows the calibration jack; 3-electric current output switch; 4-Ict measurement mechanism calibration jack; 5-Ict adjusting knob; 6-Ict measurement mechanism; 7-temperature controller; 8-Ih display device; 9-temperature meter base; 10-working cavity; 11-circuit part; 12-rabbling mechanism; 13-transformer; 14-output-controlling device; 15-external calibrated lead; 16-Ict output lead; 17-Ih measuring lead wire; 18-total power switch; 19-supply socket; 20-Ict input gear knob; 21-Ih adjusts knob; 22-compound transmitter; 23-compound transmitter Ict input terminal; 24-compound transmitter Ih measurement terminal.

Embodiment:

Below in conjunction with accompanying drawing the present invention is done further explanation:

A kind of transformer is with winding temperature gage temperature rise test device, and is as shown in fig. 1, but but this test unit mainly comprises the constant current source of the calibration cell analogue transformer current transformer output current of analogue transformer pasta temperature; Wherein calibration cell is made up of temperature controller 7, temperature meter base 9, working cavity 10 and rabbling mechanism 12; Constant current source is made up of transformer 13, circuit part 11, output-controlling device 14 and Ict measurement mechanism 6.

Shown in Fig. 2, Fig. 3 and Fig. 4; This test unit also comprises slave part; Slave part is: the Ict output lead 16 and Ih measuring lead wire 17 that are arranged on this top, test unit back; These two lead-in wires connect the compound transmitter Ict input terminal 23 and compound transmitter Ih measurement terminal 24 of seized winding temperature gage respectively, and the Ih display device 8, Ict measurement mechanism calibration jack 4 and the Ih that are arranged on this test unit panel show calibration jack 2, and external calibrated lead 15; The thermometer bulb of compound transmitter 22 is installed in the temperature meter base 9 of calibration cell, and is connected with Ih measuring lead wire 17 with Ict output lead 16, and compound transmitter 22 tops also are provided with Ict input gear knob 20 and Ih adjustment knob 21.

As shown in fig. 1; The temperature controller 7 of said calibration cell is arranged on the panel of this test unit; This test unit top is provided with temperature meter base 9, and temperature meter base 9 belows are provided with working cavity 10 and rabbling mechanism 12, and this calibration cell can analogue transformer pasta temperature and winding temperature gage installation form.

The Ict measurement mechanism 6 of said constant current source is arranged on the panel of this test unit, and is electrically connected each other with circuit part 11, and circuit part 11 belows are respectively equipped with transformer 13 and output-controlling device 14, and this constant current source can the output of analogue transformer transformer current.

This below, test unit back is provided with total power switch 18 and supply socket 19; Also be provided with Ih on this test unit panel and measure conversion knob 1, Ict adjusting knob 5 and electric current output switch 3.

Said Ict measurement mechanism 6 can show that calibrating jack 2 and external calibrated lead 15 external standard amperemeters and voltage table calibrates through Ict measurement mechanism calibration jack 4, Ih with Ih display device 8.

Said constant current source can be exported stable electric current by the analogue transformer current transformer, and the electric current of constant current source output is adjusted through Ict adjusting knob 5, and the electric current setting range is 0.5A ~ 5A.

When this test unit carries out the Ih measurement, can measure the conversion that conversion knob 1 carries out between voltage and the current measurement through Ih.

This test unit comprises respectively 1 of calibration cell and constant current source at least, also can be provided with a plurality of according to actual conditions.

This transformer of the present invention uses winding temperature gage temperature rise test device principle of work to be: come analogue transformer oil temperature with the oily temperature in the calibration cell working cavity 10; Simulate the winding temperature gage installment state with temperature meter base 9, come analogue transformer mutual inductor output current with the constant current source output current.

Compound transmitter 22 with tested winding temperature gage during detection is installed in the calibration cell temperature meter base 9; Insert Ict output lead 16 and Ih measuring lead wire 17; The Ih adjustment knob 21 of adjustment Ict adjusting knob 5 and winding temperature gage; Make Ict and Ih value meet the design of transformer parameter request, treat temperature stabilization after, the difference of winding temperature gage indicating value and calibration cell indicating value is the specified temperature rise of Transformer Winding.

The course of work of the present invention is following:

1, checks that at first transformer is no abnormal with each parts surface of winding temperature gage temperature rise test device panel; Inspection also guarantees that the electric current output switch 3 on the temperature rise test device panel is in the closed position; Inspection also guarantees that the Ih measurement conversion knob 1 on the temperature rise test device panel is in and seized compound transmitter Ih measurement type consistent state; Power lead is inserted temperature rise test device back supply socket 19 and guarantees to connect reliable.

2, open the total power switch 18 at temperature rise test device back, whether inspection calibration cell temperature controller 7 design temperatures are 80 ℃; Treat whether the temperature in the stable back inspection of the calibration cell temperature controller 7 displayed values working cavity 10 is 80 ℃; The thermometer bulb of the compound transmitter 22 of seized winding temperature gage is inserted in the temperature meter base 9 of temperature rise test device working cavity 10 tops, and stable 45min is to guarantee that the winding temperature gage indicating value is stable.

3, adjust and the Ict input gear knob 20 of guaranteeing compound transmitter 22 tops is applicable to and detects required rated current size, the rated current size confirms that by transformer current mutual inductor output valve it is worth generally between 0.5A ~ 5A; Ict output lead 16 is inserted compound transmitter Ict input terminal 23; Ih measuring lead wire 17 is inserted compound transmitter Ih measurement terminal 24.

4, the electric current of opening on the temperature rise test device panel is exported switch 3; Regulating Ict adjusting knob 5 makes Ict measurement mechanism 6 displayed values and rated current consistent; The Ih adjustment knob of regulating on the compound transmitter 22 21 changes Ih display device 8, makes it to meet the specified copper oil of transformer temperature difference current corresponding value.

5, wait to stablize the indicating value that read winding temperature gage in 45 minutes; Detect and accomplish the electric current output switch 3 that to close on the temperature rise test device panel; Remove Ict output lead 16 and Ih measuring lead wire 17, change winding temperature gage and examine and determine.

6, also available if needed external calibrated lead 15 inserts Ih demonstration calibration jack 2 and inserts standard voltmeters, or inserts Ict measurement mechanism calibration jacks 4 access standard amperemeters with external calibrated lead 15, and winding temperature gage temperature rise test device is demarcated.

Thermal simulation characteristic-temperature rise and electric current correspondence table:

Claims (9)

1. a transformer is characterized in that with winding temperature gage temperature rise test device: but but this test unit mainly comprises the constant current source of the calibration cell analogue transformer current transformer output current of analogue transformer pasta temperature; Wherein calibration cell is made up of temperature controller (7), temperature meter base (9), working cavity (10) and rabbling mechanism (12); Constant current source is made up of transformer (13), circuit part (11), output-controlling device (14) and Ict measurement mechanism (6).
2. transformer according to claim 1 is with winding temperature gage temperature rise test device; It is characterized in that: this test unit also comprises slave part; Slave part is: the Ict output lead (16) and the Ih measuring lead wire (17) that are arranged on this top, test unit back; The Ih display device (8), Ict measurement mechanism calibration jack (4) and the Ih that are arranged on this test unit panel show calibration jack (2), and external calibrated lead (15).
3. transformer according to claim 1 is with winding temperature gage temperature rise test device; It is characterized in that: the temperature controller of said calibration cell (7) is arranged on the panel of this test unit; This test unit top is provided with temperature meter base (9), and temperature meter base (9) below is provided with working cavity (10) and rabbling mechanism (12).
4. transformer according to claim 1 is characterized in that with winding temperature gage temperature rise test device:
The Ict measurement mechanism (6) of said constant current source is arranged on the panel of this test unit, and is connected with circuit part (11), and circuit part (11) below is respectively equipped with transformer (13) and output-controlling device (14).
5. transformer according to claim 1 is characterized in that with winding temperature gage temperature rise test device: this below, test unit back is provided with total power switch (18) and supply socket (19); Also be provided with Ih on this test unit panel and measure conversion knob (1), Ict adjusting knob (5) and electric current output switch (3).
According to claim 1,2 or 4 described transformers with winding temperature gage temperature rise test device, it is characterized in that: said Ict measurement mechanism (6) and Ih display device (8) can show that calibration jack (2) and the external standard amperemeters of external calibrated lead (15) and voltage table calibrate through Ict measurement mechanism calibration jack (4), Ih.
According to claim 1 or 5 described transformers with winding temperature gage temperature rise test device, it is characterized in that: the electric current of said constant current source output can be through Ict adjusting knob (5) adjustment, and the electric current setting range is 0.5A ~ 5A.
According to claim 1 or 5 described transformers with winding temperature gage temperature rise test device, it is characterized in that: this test unit is measured conversion knob (1) through Ih and is carried out the conversion between voltage and the current measurement.
According to claim 1,2,3,4 or 5 described transformers with winding temperature gage temperature rise test device, it is characterized in that: this test unit comprises each 1 of calibration cell and constant current source at least.
CN201110210258.0A 2011-07-26 2011-07-26 Temperature rise test device of winding thermometer for transformer CN102359833B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110210258.0A CN102359833B (en) 2011-07-26 2011-07-26 Temperature rise test device of winding thermometer for transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110210258.0A CN102359833B (en) 2011-07-26 2011-07-26 Temperature rise test device of winding thermometer for transformer

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CN102359833A true CN102359833A (en) 2012-02-22
CN102359833B CN102359833B (en) 2014-01-15

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148965A (en) * 2013-02-26 2013-06-12 广东电网公司电力科学研究院 Temperature rise characteristic field testing method of thermal simulation device of transformer winding temperature controller
CN103364110A (en) * 2012-03-31 2013-10-23 绥化电业局 Method for comprehensively calibrating high-voltage transformer body and remote temperature measurement used thermometer
WO2015010612A1 (en) * 2013-07-23 2015-01-29 国家电网公司 System and method for online testing of temperature of distribution transformer heat run test winding
CN104459412A (en) * 2014-12-17 2015-03-25 国网上海市电力公司 Transformer thermal ageing real-time simulation measurement device and application thereof
CN104678980A (en) * 2013-11-28 2015-06-03 国网河南省电力公司三门峡供电公司 Transformer temperature controller inspection instrument
CN106840461A (en) * 2016-07-20 2017-06-13 国家电网公司 A kind of transformer reactance device temperature protective device in-situ check and test method
CN109827679A (en) * 2019-03-11 2019-05-31 山东理工大学 Distribution transformer winding temperature rise on-line monitoring system and on-line monitoring method
CN110686804A (en) * 2019-09-20 2020-01-14 广东蓄能发电有限公司 Automatic temperature control and measurement method based on temperature cooker communication

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010166A1 (en) * 1994-09-27 1996-04-04 Rosemount Inc. Calibration of process control temperature transmitter
CN2569119Y (en) * 2002-09-18 2003-08-27 新疆特变电工股份有限公司 On-line monitor for hot-spot temp of transformer winding
CN2676365Y (en) * 2003-12-22 2005-02-02 叶江鹰 Oil surface thermostat for transformer
CN101162172A (en) * 2007-11-16 2008-04-16 王世有 Transformer winding temperature gage
CN202158912U (en) * 2011-07-26 2012-03-07 东北电力科学研究院有限公司 Temperature rise test device of winding temperature gauge for transformer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010166A1 (en) * 1994-09-27 1996-04-04 Rosemount Inc. Calibration of process control temperature transmitter
CN2569119Y (en) * 2002-09-18 2003-08-27 新疆特变电工股份有限公司 On-line monitor for hot-spot temp of transformer winding
CN2676365Y (en) * 2003-12-22 2005-02-02 叶江鹰 Oil surface thermostat for transformer
CN101162172A (en) * 2007-11-16 2008-04-16 王世有 Transformer winding temperature gage
CN202158912U (en) * 2011-07-26 2012-03-07 东北电力科学研究院有限公司 Temperature rise test device of winding temperature gauge for transformer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103364110A (en) * 2012-03-31 2013-10-23 绥化电业局 Method for comprehensively calibrating high-voltage transformer body and remote temperature measurement used thermometer
CN103148965A (en) * 2013-02-26 2013-06-12 广东电网公司电力科学研究院 Temperature rise characteristic field testing method of thermal simulation device of transformer winding temperature controller
CN103148965B (en) * 2013-02-26 2015-03-18 广东电网公司电力科学研究院 Temperature rise characteristic field testing method of thermal simulation device of transformer winding temperature controller
WO2015010612A1 (en) * 2013-07-23 2015-01-29 国家电网公司 System and method for online testing of temperature of distribution transformer heat run test winding
CN104344907A (en) * 2013-07-23 2015-02-11 国家电网公司 Distribution transformer temperature rise test winding temperature on-line test system and method
CN104678980A (en) * 2013-11-28 2015-06-03 国网河南省电力公司三门峡供电公司 Transformer temperature controller inspection instrument
CN104678980B (en) * 2013-11-28 2017-11-07 国网河南省电力公司三门峡供电公司 Transformer temperature controller check meter
CN104459412A (en) * 2014-12-17 2015-03-25 国网上海市电力公司 Transformer thermal ageing real-time simulation measurement device and application thereof
CN104459412B (en) * 2014-12-17 2018-05-22 国网上海市电力公司 A kind of transformer heat ageing real-time Simulation measuring device and its application
CN106840461A (en) * 2016-07-20 2017-06-13 国家电网公司 A kind of transformer reactance device temperature protective device in-situ check and test method
CN109827679A (en) * 2019-03-11 2019-05-31 山东理工大学 Distribution transformer winding temperature rise on-line monitoring system and on-line monitoring method
CN110686804A (en) * 2019-09-20 2020-01-14 广东蓄能发电有限公司 Automatic temperature control and measurement method based on temperature cooker communication

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Owner name: HANGZHOU KEHONG INSTRUMENT CO., LTD. LIAONING DONG

Free format text: FORMER OWNER: HANGZHOU KEHONG INSTRUMENT CO., LTD. LIAONING DONGKE ELECTRIC POWER CO., LTD.

Effective date: 20121025

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Effective date of registration: 20121025

Address after: Heping District, Siping City of Shenyang province Liaoning 110006 Street No. 39

Applicant after: Northeast Electric Power Research Institute Co., Ltd.

Applicant after: Hangzhou Kehong Instrument Co., Ltd.

Applicant after: Liaoning Dongke Power Co., Ltd.

Applicant after: Liaoning Electric Power Co., Ltd.Electric Power Science Research Institute

Applicant after: State Grid Corporation of China

Address before: Heping District, Siping City of Shenyang province Liaoning 110006 Street No. 39

Applicant before: Northeast Electric Power Research Institute Co., Ltd.

Applicant before: Hangzhou Kehong Instrument Co., Ltd.

Applicant before: Liaoning Dongke Power Co., Ltd.

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