CN106441620A - Plying-up type main transformer thermometer - Google Patents
Plying-up type main transformer thermometer Download PDFInfo
- Publication number
- CN106441620A CN106441620A CN201610981673.9A CN201610981673A CN106441620A CN 106441620 A CN106441620 A CN 106441620A CN 201610981673 A CN201610981673 A CN 201610981673A CN 106441620 A CN106441620 A CN 106441620A
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- CN
- China
- Prior art keywords
- main transformer
- type main
- opening
- temperature meter
- attaching type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Surgical Instruments (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention provides a plying-up type main transformer thermometer. The plying-up type main transformer thermometer comprises a protection cover, wherein an opening is formed in one side of the protection cover, a thermal resistor is arranged on the opening, a thermal insulating layer is arranged between the protection cover and the thermal resistor, the thermal resistor is connected to a secondary cable, and the secondary cable is connected to an adaptor. According to the technical scheme, the plying-up type main transformer thermometer has the advantages that an installation method is changed, therefore, installation is convenient and manpower is saved; the plying-up type main transformer thermometer is more beneficial to waterproofing and capable of prolonging service life; a structural theory of a traditional thermometer is changed, a hydraulic pressure part is abolished, so that the volume is reduced, and the hydraulic pressure part is replaced by a temperature transmitter to achieve temperature display and warning functions; an installation site is changed so that replacement with electricity can be achieved and power cut is no longer needed, therefore, a large number of power cut operating steps are reduced, and working time is shortened by 80%.
Description
Technical field
The present invention relates to electrical equipment, more particularly to a kind of attaching type main transformer temperature meter.
Background technology
Plug-in type main transformer oil surface temperature controller (main transformer temperature meter) is used on power transformer, in transformation at present
Device covers greatly the part being provided with insertion main transformer temperature meter, isolates with main transformer body, deep about 15cm about, main transformer temperature meter is installed
When add appropriate transformer oil wherein and be used for transmitting heat, then the thermometer bulb of main transformer temperature meter is inserted.
Advantage：Due to being inserted directly into the big tops of transformator, so thermometric accurately, carries temperature scale and pointer instruction,
Can easily observe and reading, and be furnished with temperature output contact, can be used for sending main transformer oil high RST.
Shortcoming：Due to being in the big tops of transformator, because the reason structure, be difficult to accomplish absolute waterproof, frequent because
Damage for water inlet；If other thermometer damages, because relatively closely changing it is necessary to have a power failure apart from powered position.
Content of the invention
The technical problem to be solved in the present invention is to overcome drawbacks described above, provides a kind of measurement accurately, is conducive to waterproof, installs
The attaching type main transformer temperature meter that replacing need not have a power failure.
For solving the above problems, the technical solution adopted in the present invention is：
Attaching type main transformer temperature meter, including protective cover, described protective cover side is provided with opening, and described opening goes out to be provided with thermoelectricity
Resistance, is provided with thermal insulation layer between described protective cover and thermal resistance, described thermal resistance is connected with secondary cable, and described secondary cable connects
There is adapter.
Improve as a kind of：Described protective cover is rectangle, and described protection is covered with holds the breach that secondary cable passes through.
Improve as a kind of：Described thermal resistance side protrudes from protective cover.
Improve as a kind of：Described adapter includes the first shell, and described first shell lower end is connected with second housing, institute
State the first shell upper end and be provided with the first opening, be provided with the second opening between described first shell and second housing, outside described second
Shell lower end is provided with the 3rd opening, is provided with terminal base and the first sealing ring at described second opening, and described 3rd opening is provided with second
Sealing ring, described terminal base central authorities are provided with baffle plate, and described baffle plate is in cross, and described baffle plate passes through terminal base, described baffle plate
It is respectively equipped with conductive pole, described conductive pole passes through terminal base, and described conductive pole two ends are provided with plug wire hole and line ball in four blocks
Screw.
Improve as a kind of：Rotate outside described second housing and be provided with trocar sheath, described trocar sheath is provided with secondary electricity
Cable fixing device.
Improve as a kind of：Described secondary cable fixing device is including rotation set, described rotation set and trocar sheath lower end screw thread
Connect, described trocar sheath lower end is provided with some claws, and the cross section of described claw is triangle, and described rotation set is provided with end cap, institute
State end cap and be provided with the 4th opening.
Improve as a kind of：Described 3rd opening is additionally provided with the 3rd sealing ring, described second sealing ring and the 3rd sealing ring
It is located at the 3rd opening both sides respectively, described second sealing ring and the 3rd sealing ring are cone.
Improve as a kind of：Described first sealing ring is annular, and described first sealing ring is circumferentially with cannelure.
Improve as a kind of：Described first shell is provided with female thread.
Due to employing technique scheme, the invention has the advantages that
1st, change installation method, easy for installation, save manpower；
2nd, it is more beneficial for waterproof, can increase the service life；
3rd, change the structural principle of original temperature meter, eliminate hydraulic part, so that volume is reduced, hydraulic part is by temperature
Transmitter is realized temperature and is shown and warning function；
4th, change installation site, need not be able to be had a power failure with charged for replacement, decrease substantial amounts of power failure operation step, work
Time reduces 80%.
Decrease the number of stoppages of thermometer using attaching type main transformer temperature meter, improve the operation level of main transformer.Attaching type
Main transformer temperature meter simple installation, during replacing, main transformer need not have a power failure, and decreases workload during power failure.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description
Accompanying drawing 1 is the structural representation of attaching type main transformer temperature meter of the present invention；
Accompanying drawing 2 is the side structure schematic view of Fig. 1；
Accompanying drawing 3 is the structural representation of adapter in attaching type main transformer temperature meter of the present invention；
Accompanying drawing 4 is the structural representation of trocar sheath in attaching type main transformer temperature meter of the present invention；
Accompanying drawing 5 is the structural representation of terminal base in attaching type main transformer temperature meter of the present invention；
Accompanying drawing 6 is the side structure schematic view of Fig. 5；
Accompanying drawing 7 is the structural representation of the first sealing ring in attaching type main transformer temperature meter of the present invention；
Accompanying drawing 8 is the schematic cross-section after adapter application in attaching type main transformer temperature meter of the present invention.
In figure：1- first shell；2- first opening；3- first sealing ring；4- second housing；5- the 3rd opening；6- terminal
Seat；7- second opening；8- trocar sheath；9- rotation set；10- the 4th opening；11- claw；12- second sealing ring；13- the 3rd seals
Circle；14- end cap；15- baffle plate；16- conductive pole；17- plug wire hole；18- line ball screw；19- cannelure；20- protective cover；21- is hard
Secondary line；22- core；23- secondary cable；24- breach；25- thermal resistance；26- thermal insulation layer.
Specific embodiment
Embodiment：As shown in Figure 1, 2, attaching type main transformer temperature meter, including plastic safety cover 20, described protective cover 20 side
It is provided with opening, described opening goes out to be provided with thermal resistance 25, is provided with thermal insulation layer 26, described heat between described protective cover 20 and thermal resistance 25
Resistance 25 is connected with secondary cable 23, and described secondary cable 23 is connected with adapter.
Thermal insulation layer 26 can reduce local radiating, makes the temperature recording closer to actual top-oil temperature.
Described thermal insulation layer 26 is made up of foam plasticss, and whole protective cover 20 is filled up, and described thermal insulation layer 26 is provided with groove, institute
State thermal resistance 25 to be arranged in groove.
Described protective cover 20 is rectangle, and described protective cover 20 is provided with and holds the breach 24 that secondary cable 23 passes through.
Described depth of groove is less than thermal resistance 25 thickness, and described thermal resistance 25 side protrudes from protective cover 20.So that platinum is electric
Resistance can fit in testee surface.
Described thermal resistance 25 is 3pt100 platinum resistance, and described 3pt100 platinum resistance is included outside platinum resistance chip and Metal Packaging
Shell, sealant pouring and sealing, plays waterproof action.
As shown in Fig. 3 is to 8, described adapter includes the first shell 1, and described first shell 1 lower end is connected with second housing
4, described first shell 1 and second housing 4 are cylindrical shape, and it is straight that described first shell 1 outside diameter is more than second housing 4 outside
Footpath, described first shell 1 inside diameter is more than second housing 4 inside diameter.
Described first shell 1 upper end is provided with the first opening 2, is provided with second and opens between described first shell 1 and second housing 4
Mouth 7, described second housing 4 lower end is provided with the 3rd opening 5, is provided with terminal base 6 and the first sealing ring 3, institute at described second opening 7
State the 3rd opening 5 and be provided with the second sealing ring 12, described terminal base 6 central authorities are provided with baffle plate 15, described baffle plate 15 is in cross, described
Baffle plate 15 passes through terminal base 6, is respectively equipped with conductive pole 16 in four blocks of described baffle plate 15, and described conductive pole 16 passes through terminal
Seat 6, described conductive pole 16 two ends are provided with plug wire hole 17 and line ball screw 18.Described first shell 1 is provided with female thread.Described interior spiral shell
Stricture of vagina is matched with the screw thread of the wiring junction of transformer oil surface temperature controller 20.Described conductive pole 16 one end is with hard secondary line 21 even
Connect, the other end is connected with core 22.
Described 3rd opening 5 diameter is matched with secondary cable 23.Described terminal base 6 and the first sealing ring 3 can be from
One opening 2 takes out.
Described terminal base 6 is circle, and described terminal base 6 and baffle plate 15 are made up of isolation material, described baffle plate 15 and conduction
The length in terminal base 6 both sides for the post 16 is identical.
Described second housing 4 outside rotates and is provided with trocar sheath 8, and described trocar sheath 8 is provided with the fixing dress of secondary cable 23
Put.
Described secondary cable 23 fixing device is that described rotation set 9 is threadeded with trocar sheath 8 lower end, described including rotation set 9
Trocar sheath 8 lower end is provided with some claws 11, and the cross section of described claw 11 is triangle, and described rotation set 9 is provided with end cap 14, described
End cap 14 is provided with the 4th opening 10.The tapered arrangement of some claws 11.
Described 4th opening 10 inside edge is obliquely installed near the end of the 3rd opening 5, and its angle of inclination is right with claw 11
Should.
Rotate rotation set 9, claw 11 is tightened up, and clamps secondary cable 23, so connect the present invention and transformer oil surface temperature control
During device 20, secondary cable 23 will not rotate, and leads to wiring to loosen.
Described 3rd opening 5 is additionally provided with the 3rd sealing ring 13, and position distinguished by described second sealing ring 12 and the 3rd sealing ring 13
In the 3rd opening 5 both sides, described second sealing ring 12 and the 3rd sealing ring 13 are cone.
Described first sealing ring 3 is annular, and described first sealing ring 3 is circumferentially with cannelure 19.
Described first shell 1, second housing 4, trocar sheath 8, rotation set 9 and claw 11 are plastics and make.
When mounted, the part contacting with transformator should use sealant sealing to the present invention, reaches the effect of waterproof.
Above one embodiment of the present of invention is described in detail, but described content has been only the preferable enforcement of the present invention
Example is it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement
Deng all should still belong within the patent covering scope of the present invention.
Claims (9)
1. attaching type main transformer temperature meter it is characterised in that：Including protective cover (20), described protective cover (20) side is provided with opening,
Described opening goes out to be provided with thermal resistance (25), is provided with thermal insulation layer (26), described heat between described protective cover (20) and thermal resistance (25)
Resistance (25) is connected with secondary cable (23), and described secondary cable (23) is connected with adapter.
2. attaching type main transformer temperature meter according to claim 1 it is characterised in that：Described protective cover (20) is rectangle, institute
State protective cover (20) and be provided with and hold the breach (24) that secondary cable (23) passes through.
3. attaching type main transformer temperature meter according to claim 2 it is characterised in that：Described thermal resistance (25) side protrudes from
Protective cover (20).
4. attaching type main transformer temperature meter according to claim 1 it is characterised in that：Described adapter includes the first shell
(1), described first shell (1) lower end is connected with second housing (4), and described first shell (1) upper end is provided with the first opening (2),
It is provided with the second opening (7), described second housing (4) lower end is provided with the 3rd and opens between described first shell (1) and second housing (4)
Mouth (5), described second opening (7) place is provided with terminal base (6) and the first sealing ring (3), and it is close that described 3rd opening (5) is provided with second
Seal (12), described terminal base (6) central authorities are provided with baffle plate (15), and described baffle plate (15) is in cross, and described baffle plate (15) passes through
Terminal base (6), is respectively equipped with conductive pole (16) in four blocks of described baffle plate (15), described conductive pole (16) passes through terminal base
(6), described conductive pole (16) two ends are provided with plug wire hole (17) and line ball screw (18).
5. attaching type main transformer temperature meter according to claim 4 it is characterised in that：Rotate outside described second housing (4)
It is provided with trocar sheath (8), described trocar sheath (8) is provided with secondary cable (23) fixing device.
6. attaching type main transformer temperature meter according to claim 5 it is characterised in that：Described secondary cable (23) fixing device
It is including rotation set (9), described rotation set (9) is threadeded with trocar sheath (8) lower end, described trocar sheath (8) lower end is provided with some cards
Pawl (11), the cross section of described claw (11) is triangle, and described rotation set (9) is provided with end cap (14), and described end cap (14) is provided with
4th opening (10).
7. attaching type main transformer temperature meter according to claim 4 it is characterised in that：Described 3rd opening (5) is additionally provided with
Three sealing rings (13), described second sealing ring (12) and the 3rd sealing ring (13) are located at the 3rd opening (5) both sides respectively, and described the
Two sealing rings (12) and the 3rd sealing ring (13) are cone.
8. attaching type main transformer temperature meter according to claim 4 it is characterised in that：Described first sealing ring (3) is annulus
Shape, described first sealing ring (3) is circumferentially with cannelure (19).
9. attaching type main transformer temperature meter according to claim 4 it is characterised in that：Described first shell (1) is provided with interior spiral shell
Stricture of vagina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981673.9A CN106441620B (en) | 2016-11-07 | 2016-11-07 | Attaching type main transformer temperature meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610981673.9A CN106441620B (en) | 2016-11-07 | 2016-11-07 | Attaching type main transformer temperature meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106441620A true CN106441620A (en) | 2017-02-22 |
| CN106441620B CN106441620B (en) | 2018-11-16 |
Family
ID=58208734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610981673.9A Expired - Fee Related CN106441620B (en) | 2016-11-07 | 2016-11-07 | Attaching type main transformer temperature meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106441620B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267270A (en) * | 2021-03-30 | 2021-08-17 | 贵州电网有限责任公司 | Real-time detection transformer pile head and line joint temperature rise early warning device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340664A (en) * | 1997-06-05 | 1998-12-22 | Asahi Denki Seisakusho:Kk | Small-sized current limiting fuse |
| KR20050072924A (en) * | 2004-01-08 | 2005-07-13 | 코닉스계기공업 주식회사 | Temperature indicator for power transformer |
| CN201034734Y (en) * | 2007-05-15 | 2008-03-12 | 淄博正瑞电子有限公司 | Electrical cable temperature sensor |
| CN103792012A (en) * | 2012-10-30 | 2014-05-14 | 国家电网公司 | Oil level thermometer used for oil-immersed transformer |
| CN105092071A (en) * | 2015-08-06 | 2015-11-25 | 上海交通大学 | Temperature sensor used for numerical control machine tool thermal error test |
| CN105628225A (en) * | 2016-03-02 | 2016-06-01 | 平高集团有限公司 | Temperature measuring device and GIL using same |
| CN105865644A (en) * | 2016-05-26 | 2016-08-17 | 句容市博远电子有限公司 | Casing for packaging electronic element and temperature sensor |
-
2016
- 2016-11-07 CN CN201610981673.9A patent/CN106441620B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340664A (en) * | 1997-06-05 | 1998-12-22 | Asahi Denki Seisakusho:Kk | Small-sized current limiting fuse |
| KR20050072924A (en) * | 2004-01-08 | 2005-07-13 | 코닉스계기공업 주식회사 | Temperature indicator for power transformer |
| CN201034734Y (en) * | 2007-05-15 | 2008-03-12 | 淄博正瑞电子有限公司 | Electrical cable temperature sensor |
| CN103792012A (en) * | 2012-10-30 | 2014-05-14 | 国家电网公司 | Oil level thermometer used for oil-immersed transformer |
| CN105092071A (en) * | 2015-08-06 | 2015-11-25 | 上海交通大学 | Temperature sensor used for numerical control machine tool thermal error test |
| CN105628225A (en) * | 2016-03-02 | 2016-06-01 | 平高集团有限公司 | Temperature measuring device and GIL using same |
| CN105865644A (en) * | 2016-05-26 | 2016-08-17 | 句容市博远电子有限公司 | Casing for packaging electronic element and temperature sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267270A (en) * | 2021-03-30 | 2021-08-17 | 贵州电网有限责任公司 | Real-time detection transformer pile head and line joint temperature rise early warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106441620B (en) | 2018-11-16 |
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Granted publication date: 20181116 Termination date: 20191107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |