CN203102001U - Check device for oil level temperature controller of power transformer - Google Patents
Check device for oil level temperature controller of power transformer Download PDFInfo
- Publication number
- CN203102001U CN203102001U CN2013200834080U CN201320083408U CN203102001U CN 203102001 U CN203102001 U CN 203102001U CN 2013200834080 U CN2013200834080 U CN 2013200834080U CN 201320083408 U CN201320083408 U CN 201320083408U CN 203102001 U CN203102001 U CN 203102001U
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- temperature controller
- display instrument
- contact state
- power transformer
- state display
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Abstract
The utility model relates to a check device for an oil level temperature controller of a power transformer. The check device is structurally characterized in that a composite sensor is arranged in a constant-temperature oil tank and connected with a pointer temperature meter, a signal contact state display instrument, a temperature display instrument and a heat resistance instrument respectively; the pointer temperature meter is connected with the signal contact state display instrument; and in the signal contact state display instrument, a light-emitting diode is connected in parallel into a circuit board with a battery. The check device can be used for saving the working time and the workload and reducing unnecessary erroneous judgments in the test process, only needs to be operated by few persons before test, can be used for achieving the purpose of automatic checking in the test process, and has numerous outstanding advantages of low manufacture cost, simplicity in operation, accurate test result, clear data and the like.
Description
Technical field
The utility model relates to the calibration equipment in a kind of electric system, relate in particular to a kind of power transformer pasta temperature controller calibration equipment, be to the verification of all kinds of thermometric instruments of electric system, temperature detecting resistance and winding temperature controller, be widely used in the power test field.
Background technology
The control of transformer running temperature directly influences Transformer Economic, safe operation, and electrical network is stable.This requires on the transformer temperature controller to want to indicate the transformer temperature accurately, can send alerting signal timely when the transformer temperature raises, and in time starts air-cooled equipment and lower the temperature.Real-time remote monitoring transformer temperature accurately.Temperature controller verification in the past needs temperature, resistance, three steps compositions of contact, needs 3 people to cooperate at least and finishes about 4 hours consuming time.And temperature controller is evenly distributed on diameter by 6 winding point contacts and only has in the circular joint of 25mm, and dense arrangement, and there is uncertain factor in the method for work of finding always to be applied to examine and determine temperature controller in experiment work for many years.Whether first make and break contact is when the design temperature precision maneuver, the method of using multimeter to touch temperature controller touches adjacent contact in the time of can testing unavoidably, perhaps bump the situation of other contacts by mistake, this has just brought unnecessary trouble and many repetitive operation to verification work, also can bring the erroneous judgement of test result disconnected.Certain accuracy, science and intelligent that requires test in the electrical production experiment work, obviously traditional test method can not satisfy the paces of grid equipment fast development instantly.
Summary of the invention
The utility model provides a kind of power transformer pasta temperature controller calibration equipment at above-mentioned problems of the prior art, has solved prior art and cause judging by accident disconnected problem easily in actual verification operation.
The technical solution of the utility model is as follows:
The compound sensor thermometer bulb places thermostatic oil bath, and compound sensor is concatenation pointer thermometer, signal contact state display instrument, Wen Xianyi and thermal resistance instrument respectively; The pointer thermometer is connected with signal contact state display instrument; Described signal contact state display instrument is the light emitting diode wiring board that has battery that inserts in parallel.
Described light emitting diode is 6 different color LEDs.
Described battery is No. 5 dry cells of 2 joints.
Described compound sensor is connected with Wen Xianyi respectively by two Pt100 resistive module.
Described compound sensor connects constant current source.
The connector lug of the stube cable of described pointer thermometer and signal contact state display instrument is an Aviation Connector.
The utility model has the advantages of as follows:
1, the utility model can satisfy the requirement of transformer temperature controller verification rules, demonstration test findings that can be accurate and visual.
2, the utility model can solve at the safety problem that exists in the test in the past, has improved the security of verification, and has reduced the spoilage of testing equipment.
3, the connector lug that uses of the stube cable of pointer thermometer and signal contact state display instrument is an Aviation Connector, has the characteristics of shockproof, waterproof, safety plug, can reduce the influence of experimental enviroment to test findings.
4, the utility model can carry out compatibility and extendability design and improvement at the electric system actual conditions.Has the loop fault arbitration functions as designing Wen Xianyi.
5. the utility model adopts fabricated structure, and each unit replacement is convenient.Rational in infrastructure, superior performance, well-equipped can realize the verification demand of various model temperature controllers in the real work.
The old-fashioned in the past test method of judging with multimeter of comparing saved working time, workload, reduced erroneous judgement unnecessary in the process of the test.This covering device only needs a little manually-operated before test, and process of the test has realized the purpose of robotization verification, and has that cost is low, simple to operate, test findings is accurate, data are clear, waits many remarkable advantages.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the principle schematic of the utility model signal contact state display instrument.
Among the figure, 1, Wen Xianyi I, 2, the thermal resistance instrument, 3, Wen Xianyi II, 4, compound sensor, 5, oil groove, 6, the pointer thermometer, 7, signal contact state display instrument, 401, DIN42554,402, Pt100,701, plug, 702, lead end, 703, light emitting diode.
Embodiment
Compound sensor 4 thermometer bulbs place thermostatic oil bath 5, and compound sensor 4 is concatenation pointer thermometer 6, signal contact state display instrument 7, Wen Xianyi I 1, Wen Xianyi II3 and thermal resistance instrument 2 respectively; Pointer thermometer 6 is connected with signal contact state display instrument 7, and the connector lug of the stube cable of pointer thermometer and signal contact state display instrument is an Aviation Connector; Described signal contact state display instrument is 6 different color LEDs 703 wiring boards that have No. 5 dry cells of 2 joints that insert in parallel.Described compound sensor adopts DIN42554 standardization thermometer base, is connected with Wen Xianyi respectively by two Pt100 resistive module.
Described compound sensor connects constant current source.Other structure is with embodiment 1.
Principle of work of the present utility model and process are as follows:
During test, the compound sensor thermometer bulb of temperature controller is put as in the thermostatic oil bath that can heat automatically, the temperature controller cable splice inserts signal contact state display instrument, and when the initial stage oil sump temperature did not reach the contact operating temperature, the light emitting diode of being installed in the contact state display instrument was not luminous.When oil sump temperature raise, the volume of temperature sensing medium changed thereupon in the temperature controller temperature sensing part.This dilatation is delivered to the flexible member of pointer thermometer by kapillary, makes it to produce a corresponding displacement.After this displacement is amplified through mechanism, driving the pointer indicated temperature changes, and driving fine motion temperature switch closure, the loop of the light emitting diode of seeing this contact that at this moment can be very clear and intuitive is connected and is luminous, along with the continuation rising of oil sump temperature, other light emitting diode also can be luminous under the contact operating temperature of its setting.When oil sump temperature descended, the volume of the interior temperature sensing medium of temperature controller diminished thereupon, and contact disconnects, and light emitting diode extinguishes.The calibrating of the contact state of this temperature controller is just finished smoothly by this method.That be connected respectively with two Pt100 resistive module in the compound sensor is the corresponding Wen Xianyi that is fixed on the testing table.During with the platinum resistance thermometer sensor, thermometric, platinum resistance thermometer sensor, is inserted Wen Xianyi, measure the resistance of platinum resistance thermometer sensor, by Wen Xianyi, thereby demonstrate temperature.Along with improving constantly that the transformer security of operation is required, the winding temperature controller more and more is widely used on the transformer as a kind of winding temperature variation monitoring equipment.Constant current source has been installed simultaneously to satisfy the verification of winding temperature controller on the transformer calibration equipment.Winding temperature controller compound sensor is inserted in the oilhole of transformer oil box top, and when transformer load was zero, the reading of winding temperature gage was the temperature of oil tank of transformer top layer pasta.On transformer belt, load, the electric current that is directly proportional with load by the taking-up of transformer current mutual inductor, after the adjustment of currents match device, flow through and be inlaid in heating wire in the compound sensor, heating wire produces heat, temperature sensing medium in the compound sensor is further expanded, and the displacement of pointer thermometer flexible member increases.Be connected with constant current source with the corresponding contact of winding temperature controller of connecting line institute's verification, by regulating the constant current source current output, temperature rise situation during the on-load of analogue transformer actual motion, at constant current source and meet reometer is installed between the transmitter, the current magnitude of monitoring constant current source at any time and being provided.
Claims (6)
1. power transformer pasta temperature controller calibration equipment is characterized in that the compound sensor thermometer bulb places thermostatic oil bath, and compound sensor is concatenation pointer thermometer, signal contact state display instrument, Wen Xianyi and thermal resistance instrument respectively; The pointer thermometer is connected with signal contact state display instrument; Described signal contact state display instrument is the light emitting diode wiring board that has battery that inserts in parallel.
2. power transformer pasta temperature controller calibration equipment according to claim 1 is characterized in that described light emitting diode is 6 different color LEDs.
3. power transformer pasta temperature controller calibration equipment according to claim 1 is characterized in that described battery is No. 5 dry cells of 2 joints.
4. power transformer pasta temperature controller calibration equipment according to claim 1 is characterized in that described compound sensor is connected with Wen Xianyi respectively by two Pt100 resistive module.
5. power transformer pasta temperature controller calibration equipment according to claim 1 is characterized in that described compound sensor connects constant current source.
6. power transformer pasta temperature controller calibration equipment according to claim 1 is characterized in that the connector lug of the stube cable of described pointer thermometer and signal contact state display instrument is an Aviation Connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200834080U CN203102001U (en) | 2013-02-22 | 2013-02-22 | Check device for oil level temperature controller of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200834080U CN203102001U (en) | 2013-02-22 | 2013-02-22 | Check device for oil level temperature controller of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203102001U true CN203102001U (en) | 2013-07-31 |
Family
ID=48853386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200834080U Expired - Lifetime CN203102001U (en) | 2013-02-22 | 2013-02-22 | Check device for oil level temperature controller of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203102001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149923A (en) * | 2013-02-22 | 2013-06-12 | 辽宁省电力有限公司丹东供电公司 | Verifying device for oil surface temperature controller of power transformer |
| CN108871621A (en) * | 2018-06-29 | 2018-11-23 | 国网湖北省电力有限公司孝感供电公司 | A kind of substation's pointer-type main transformer temperature system failure detection method and device |
| WO2024187836A1 (en) * | 2023-03-16 | 2024-09-19 | 江苏核电有限公司 | Nuclear power plant transformer oil surface temperature alarm checking apparatus |
-
2013
- 2013-02-22 CN CN2013200834080U patent/CN203102001U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149923A (en) * | 2013-02-22 | 2013-06-12 | 辽宁省电力有限公司丹东供电公司 | Verifying device for oil surface temperature controller of power transformer |
| CN108871621A (en) * | 2018-06-29 | 2018-11-23 | 国网湖北省电力有限公司孝感供电公司 | A kind of substation's pointer-type main transformer temperature system failure detection method and device |
| WO2024187836A1 (en) * | 2023-03-16 | 2024-09-19 | 江苏核电有限公司 | Nuclear power plant transformer oil surface temperature alarm checking apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |