CN102938290B - Transformer temperature detecting resistance device and protective cover thereof - Google Patents
Transformer temperature detecting resistance device and protective cover thereof Download PDFInfo
- Publication number
- CN102938290B CN102938290B CN201210506222.1A CN201210506222A CN102938290B CN 102938290 B CN102938290 B CN 102938290B CN 201210506222 A CN201210506222 A CN 201210506222A CN 102938290 B CN102938290 B CN 102938290B
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- Prior art keywords
- temperature detecting
- detecting resistance
- shell
- installation sheet
- transformer
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a kind of protective cover of transformer temperature detecting resistance device, comprise shell and be connected to the installation sheet on shell.Shell is in the spherical crown shape that Open Side Down; Installation sheet is tabular.The edge that installation sheet is positioned at the bottom of shell is positioned at the sagittal middle part of shell.Installation sheet central authorities are provided with installation through hole.The invention still further relates to a kind of transformer temperature detecting resistance device, comprise transformer case, temperature detecting resistance, rubber seal and aforesaid protective cover.Transformer case is provided with temperature detecting resistance and installs stake, rubber seal pad is installed above stake at temperature detecting resistance, protective cover by its installation sheet pad above rubber seal, temperature detecting resistance stretches in transformer case through after the installation through hole of installation sheet and the center through hole of rubber seal from the top down, and installs stake with temperature detecting resistance and be threaded togather thus be fixed on transformer case by temperature detecting resistance.Thus protective cover can make rubber seal be exposed to the sun and rain, and improves its useful life.
Description
Technical field
The present invention relates to a kind of temperature detecting resistance device on transformer and protective cover thereof, particularly the temperature detecting resistance device of 110kV and above transformer and protective cover thereof.
Background technology
On 110kV and above transformer, one or many temperature detecting resistances are generally all housed, and this temperature detecting resistance carries out Real-Time Monitoring to the oil temperature of transformer.In the abnormal rising of temperature of oil in transformer and when exceeding set point, transformer measure control device can send alarm signal.The normal oil temperature of transformer is very important to the operation of transformer, and the abnormal rising of oil temperature can affect the normal work of transformer.
See Fig. 4, temperature detecting resistance 4 on existing transformer stretches in the transformer oil 6 of the temperature measuring box 32 of transformer by the resistor rod 43 of temperature detecting resistance 4, and temperature detecting resistance 4 is installed in stake 31 by the female temperature detecting resistance of establishing of threaded portion spinning on the transformer case 3 of transformer being arranged on the hex bolts 42 of its middle and upper part.A rubber seal 5 is provided with between the head lower surface of hex bolts 42 and the upper surface of temperature detecting resistance installation stake 31.Described rubber seal 5 long term exposure in atmosphere, easy aged deterioration after exposing to the sun and rain.And after rubber seal aged deterioration, therefore rainwater will enter in temperature detecting resistance mounting groove, the transformer oil in temperature detecting resistance mounting groove will ooze out.After flowing into water in temperature measuring box 32, the temperature detecting resistance in it will get rusty gradually and damage and cisco unity malfunction, therefore causes the useful life of temperature detecting resistance shorter, is only only 2 to three years.And temperature detecting resistance just can not the temperature of Real-Time Monitoring transformer oil after damaging.Due to charged when transformer runs, and safe distance is comparatively little between the installation site of temperature detecting resistance and the charged position of transformer, so temperature detecting resistance cannot be changed at any time, namely can not change temperature detecting resistance when transformer runs, must could change temperature detecting resistance after transformer quits work.Like this at transformer before replacing temperature detecting resistance out of service, just cannot carry out real time temperature monitoring to transformer oil, greatly reduce the safe operation coefficient of transformer.
Summary of the invention
The technical problem to be solved in the present invention is to provide longer transformer temperature detecting resistance device and the protective cover for extending rubber seal useful life in a kind of useful life.
First technical scheme realizing the object of the invention is to provide a kind of protective cover of transformer temperature detecting resistance device, comprises shell and is connected to the installation sheet on shell.The edge that installation sheet is positioned at the bottom of shell is positioned at the sagittal middle part of shell.
Shell is in the spherical crown shape that Open Side Down.Installation sheet is tabular, along left and right to being horizontally disposed with.Installation sheet be provided be positioned at its central authorities axis vertically to arrange installation through hole.
Installation sheet is fixed together by the bottom outer-edge of its outer ledge and shell.And the center of circle of circle that the bottom outer-edge of shell surrounds is positioned on the axis of the upward and downward of the installation through hole of installation sheet.
The second cambered plate portion that installation sheet comprises rectangular slab portion, is connected to the first cambered plate portion on the left of rectangular slab portion and is connected to from right on the right side of rectangular slab portion from left.
Through hole is installed vertically to the central part being arranged on rectangular slab portion, and the dead in line of the upward and downward of this installation through hole is in the axis of the upward and downward in the axis of the upward and downward in the first cambered plate portion and the second cambered plate portion.
The radius in the first cambered plate portion and the second cambered plate portion is all equal with the radius of the circle that the bottom outer-edge of shell surrounds.Installation sheet is fixed together by the left side central portion seal welding of the left side edge in the first cambered plate portion on the left of it and the bottom outer-edge of shell, and is fixed together by the right side central seal welding of the right side edge in the second cambered plate portion on the right side of it and the bottom outer-edge of shell.
Shell and installation sheet are made by stainless steel material.
Second technical scheme realizing the object of the invention is to provide a kind of transformer temperature detecting resistance device, comprises transformer case, temperature detecting resistance and rubber seal.Transformer case is provided with housing main body, temperature detecting resistance installs stake and temperature measuring box.The housing main body of transformer case is provided with the temperature-measuring port of a circular opening upwards, and temperature detecting resistance installs the cylindrical shape that stake be up/down perforation, and the center through hole of temperature detecting resistance installation stake is inner bolt hole.Temperature detecting resistance is installed pile weatherstrip and is fixedly connected on the temperature-measuring port place of the housing main body of transformer case, and is positioned at that housing main body is outer, the top of the temperature-measuring port of housing main body.Temperature measuring box is the cylindrical shape of opening upwards, and temperature measuring box is sealedly and fixedly connected at the temperature-measuring port place of the housing main body of transformer case, and is positioned at housing main body, and is positioned at the below of the temperature-measuring port of housing main body.The inner chamber that temperature detecting resistance installs the center through hole of stake, the temperature-measuring port of housing main body and temperature measuring box is mutually through.Transformer oil is had in temperature measuring box.Temperature detecting resistance comprises binding post, be connected to the hollow hex bolts of binding post lower end and be connected to the resistor rod of hex bolts lower end.Hex bolts is steel integral piece, and be made up of with the threaded portion being positioned at below the hollow hexagon-head being positioned at upside, the internal thread that the external screw thread of the threaded portion of hex bolts and temperature detecting resistance install the center through hole of stake matches.Rubber seal is horizontally disposed with, and the temperature detecting resistance being positioned at transformer case is installed in stake.The head being positioned at upside of the hex bolts of temperature detecting resistance is oppositely arranged by the upper side of its lower surface and rubber seal.
Above-mentioned transformer temperature detecting resistance device comprises protective cover.Protective cover comprises shell and is connected to the installation sheet on shell.The edge that installation sheet is positioned at the bottom of shell is positioned at the sagittal middle part of shell.
Shell is in the spherical crown shape that Open Side Down.Installation sheet is tabular, along left and right to being horizontally disposed with.Installation sheet be provided be positioned at its central authorities axis vertically to arrange installation through hole.
Installation sheet is fixed together by the bottom outer-edge of its outer ledge and shell.And the center of circle of circle that the bottom outer-edge of shell surrounds is positioned on the axis of the upward and downward of the installation through hole of installation sheet.
Protective cover is positioned at the top of rubber seal, and is contacted with the upper side of rubber seal by its installation sheet, and the center through hole that the center through hole of the installation through hole of installation sheet, rubber seal and temperature detecting resistance install stake aligns.
Temperature detecting resistance stretches in the transformer oil in the temperature measuring box of transformer case after passing the installation through hole of installation sheet and the center through hole of rubber seal successively from the top down by its resistor rod, and rotate the hex bolts of temperature detecting resistance, the internal thread making its threaded portion and temperature detecting resistance install stake is meshed and screws, thus temperature detecting resistance is fixed on transformer case by rubber seal rings for seal.
The second cambered plate portion that the installation sheet of above-mentioned protective cover comprises rectangular slab portion, is connected to the first cambered plate portion on the left of rectangular slab portion and is connected to from right on the right side of rectangular slab portion from left.
Through hole is installed vertically to the central part being arranged on rectangular slab portion, and the dead in line of the upward and downward of this installation through hole is in the axis of the upward and downward in the axis of the upward and downward in the first cambered plate portion and the second cambered plate portion.
The radius in the first cambered plate portion and the second cambered plate portion is all equal with the radius of the circle that the bottom outer-edge of shell surrounds.Installation sheet is fixed together by the left side central portion seal welding of the left side edge in the first cambered plate portion on the left of it and the bottom outer-edge of shell, and is fixed together by the right side central seal welding of the right side edge in the second cambered plate portion on the right side of it and the bottom outer-edge of shell.
Shell and the installation sheet of above-mentioned protective cover are made by stainless steel material.
The external diameter of rubber seal is corresponding with the circumscribed diameter of the head of hex bolts, and the internal diameter of rubber seal is corresponding with the external diameter of the threaded portion of hex bolts.The aperture of installation through hole of the installation sheet of above-mentioned protective cover is corresponding with the external diameter of the threaded portion of hex bolts.
The present invention has positive effect:
(1) rubber seal that protective cover of the present invention and the transformer temperature detecting resistance device that is provided with this protective cover can be used in transformer temperature detecting resistance can not directly be exposed to the sun and rain and aged deterioration, effectively improve the useful life of rubber seal, thus improve the useful life of temperature detecting resistance device.
(2) transformer temperature detecting resistance device of the present invention and protective cover thereof make the installation stake of the temperature detecting resistance of temperature detecting resistance, rubber seal, transformer case and connecting portion thereof in transformer running from exposing to the sun and rain, improve the safe operation coefficient of transformer, ensure that transformer is safer in running.
(3) simple and ingenious structure of the protective cover of transformer temperature detecting resistance device of the present invention, and manufacturing expense is lower, easy for installation, do not change the shell of transformer and the original structure of temperature detecting resistance during installation.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the protective cover of transformer temperature detecting resistance device of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the A-A face cutaway view of Fig. 1;
Fig. 4 is a kind of structural representation of transformer temperature detecting resistance device of the present invention.
Mark in above-mentioned accompanying drawing is as follows:
Protective cover 10,
Shell 1,
Installation sheet 2, cambered plate portion 23 of cambered plate portion of rectangular slab portion 21, first 22, second, installs through hole 24,
Transformer case 3, housing main body 30, temperature detecting resistance installs stake 31, temperature measuring box 32, temperature detecting resistance 4, binding post 41, hex bolts 42, head 42-1, threaded portion 42-2, resistor rod 43,
Rubber seal 5,
Transformer oil 6.
Embodiment
The utility model, when carrying out orientation and describing, is described with orientation shown in Fig. 1, and the orientation up and down in figure is also up and down in the de-scription, and the orientation of picture in picture face court of institute is front, and the orientation deviating from drawing is rear.
(protective cover of embodiment 1, transformer temperature detecting resistance device)
See Fig. 1 to Fig. 3, the protective cover of the transformer temperature detecting resistance device of the present embodiment comprises shell 1 and the installation sheet 2 be connected on shell 1; The edge that installation sheet 2 is positioned at the bottom of shell 1 is positioned at the sagittal middle part of shell 1.Shell 1, in the spherical crown shape that Open Side Down, is made up of stainless steel material.Installation sheet 2, along left and right to being horizontally disposed with, is made up of corrosion resistant plate material, the second cambered plate portion 23 comprising rectangular slab portion 21, be connected to the first cambered plate portion 22 on the left of rectangular slab portion 21 and be connected to from right on the right side of rectangular slab portion 21 from left.Rectangular slab portion 21 be provided be positioned at its central authorities axis vertically to the installation through hole 24 arranged, and the dead in line of the upward and downward of this installation through hole 24 is in the axis of the upward and downward in the axis of the upward and downward in the first cambered plate portion 22 and the second cambered plate portion 23.The radius in the first cambered plate portion 22 and the second cambered plate portion 23 is all equal with the radius of the circle that the bottom outer-edge of shell 1 surrounds.Installation sheet 2 is fixed together by the left side central portion seal welding of the left side edge in the first cambered plate portion 22 on the left of it and the bottom outer-edge of shell 1, and be fixed together by the right side central seal welding of the right side edge in the second cambered plate portion 23 on the right side of it and the bottom outer-edge of shell 1, thus the protective cover of transformer temperature detecting resistance device of composition the present embodiment, the center of circle of the circle that the bottom outer-edge of shell 1 surrounds is positioned on the axis of the upward and downward of the installation through hole 24 of installation sheet 2.
(embodiment 2, transformer temperature detecting resistance device)
See Fig. 4, the transformer temperature detecting resistance device of the present embodiment comprises transformer case 3, temperature detecting resistance 4, rubber seal 5 and the protective cover 10(of transformer temperature detecting resistance device that obtained by embodiment 1 calls protective cover in the following text).
Transformer case 3 is provided with housing main body 30, temperature detecting resistance installs stake 31 and temperature measuring box 32; The housing main body 30 of transformer case 3 is provided with the temperature-measuring port of a circular opening upwards, temperature detecting resistance installs the cylindrical shape of stake 31 in up/down perforation, and the center through hole that temperature detecting resistance installs stake 31 is inner bolt hole, temperature detecting resistance is installed stake 31 and is sealedly and fixedly connected at the temperature-measuring port place of the housing main body 30 of transformer case 3, and is positioned at that housing main body 30 is outer, the top of the temperature-measuring port of housing main body 30.The cylindrical shape of temperature measuring box 32 in opening upwards, temperature measuring box 32 is made up of stainless steel material, and its wall thickness is 0.5mm; Temperature measuring box 32 is sealedly and fixedly connected at the temperature-measuring port place of the housing main body 30 of transformer case 3, and is positioned at housing main body 30, and is positioned at the below of the temperature-measuring port of housing main body 30.The inner chamber that temperature detecting resistance installs the center through hole of stake 31, the temperature-measuring port of housing main body 30 and temperature measuring box 32 is mutually through.Transformer oil 6 is had in the temperature measuring box 32 of transformer case 3.Temperature detecting resistance 4 comprises binding post 41, be connected to the hollow hex bolts 42 of binding post 41 lower end and be connected to the resistor rod 43 of hex bolts 42 lower end, hex bolts 42 is steel integral piece, be made up of with the threaded portion 42-2 being positioned at below the hollow hexagon-head 42-1 being positioned at upside, the internal thread that the external screw thread of the threaded portion 42-2 of hex bolts 42 and temperature detecting resistance install the center through hole of stake 31 matches.The external diameter of rubber seal 5 is corresponding with the circumscribed diameter of the head 42-1 of hex bolts 42, and the internal diameter of rubber seal 5 is corresponding with the external diameter of the threaded portion 42-2 of hex bolts 42.The aperture of installation through hole 24 of the installation sheet 2 of the described protective cover 10 obtained by embodiment 1 is corresponding with the external diameter of the threaded portion 42-2 of hex bolts 42.
When temperature detecting resistance 4 is installed, first install above stake 31 at temperature detecting resistance and pad rubber seal 5, the installation sheet 2 of protective cover 10 on padding above rubber seal 5, and by the installation through hole 24 of installation sheet 2, the center through hole that center through hole and the temperature detecting resistance of rubber seal 5 install stake 31 is aimed at, then temperature detecting resistance 4 is passed from the top down successively the installation through hole 24 of installation sheet 2 by its resistor rod 43, the center through hole of rubber seal 5, temperature detecting resistance stretches in the transformer oil 6 in the temperature measuring box 32 of transformer case 3 after installing the center through hole of stake 31, and rotate the hex bolts 42 of temperature detecting resistance 4, the internal thread making its threaded portion 42-2 and temperature detecting resistance install stake 31 is meshed and screws, thus temperature detecting resistance 4 is fixed on transformer case 3 by rubber seal 5 sealing.Then to be alignd with the outward flange in the second cambered plate portion 23 by the first cambered plate portion 22 of its bottom outer-edge and the both sides of installation sheet 2 by the shell 1 of protective cover 10 and together with being welded and fixed, the center of circle of the circle that the bottom outer-edge of the shell 1 of protective cover surrounds is positioned on the axis of the upward and downward of the installation through hole 24 of installation sheet 2.Each 1 arc space before and after being formed between the position that the bottom outer-edge of the shell 1 of protective cover 10 is not connected with installation sheet 2 and the edge of installation sheet 2, when these 2 spaces are used for binding post 41 wiring of temperature detecting resistance 4, cabling is used.Protective cover has all carried out blocking protection to temperature detecting resistance 4 and rubber seal 5, and windproof and rain proof is sun-proof, effectively extends both useful life.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. a protective cover for transformer temperature detecting resistance device, is characterized in that: comprise shell (1) and be connected to the installation sheet (2) on shell (1); The edge that installation sheet (2) is positioned at the bottom of shell (1) is positioned at the sagittal middle part of shell (1);
Shell (1) is in the spherical crown shape that Open Side Down; Installation sheet (2) in tabular, along left and right to being horizontally disposed with; Installation sheet (2) be provided be positioned at its central authorities axis vertically to arrange installation through hole (24);
Installation sheet (2) is fixed together by the bottom outer-edge of its outer ledge and shell (1); And the center of circle of circle that the bottom outer-edge of shell (1) surrounds is positioned on the axis of the upward and downward of the installation through hole (24) of installation sheet (2);
Installation sheet (2) comprises rectangular slab portion (21), is connected to the first cambered plate portion (22) in left side, rectangular slab portion (21) and is connected to the second cambered plate portion (23) on right side, rectangular slab portion (21) from right from left;
Through hole (24) is installed vertically to the central part being arranged on rectangular slab portion (21), and the dead in line of the upward and downward of this installation through hole (24) is in the axis of the upward and downward in the axis of the upward and downward in the first cambered plate portion (22) and the second cambered plate portion (23);
The radius in the first cambered plate portion (22) and the second cambered plate portion (23) is all equal with the radius of the circle that the bottom outer-edge of shell (1) surrounds; Installation sheet (2) is fixed together by the left side central portion seal welding of the left side edge in the first cambered plate portion (22) on the left of it and the bottom outer-edge of shell (1), and is fixed together by the right side central seal welding of the right side edge in the second cambered plate portion (23) on the right side of it and the bottom outer-edge of shell (1).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864466.0A CN105374531A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device for transformer |
| CN201510860461.0A CN105390235A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus |
| CN201510864340.3A CN105390259A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus with protective cover |
| CN201811163924.8A CN109448954A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device |
| CN201210506222.1A CN102938290B (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device and protective cover thereof |
| CN201510864347.5A CN105374508A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device with protective cover |
| CN201510861404.4A CN105513748A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506222.1A CN102938290B (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device and protective cover thereof |
Related Child Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811163924.8A Division CN109448954A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device |
| CN201510864340.3A Division CN105390259A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus with protective cover |
| CN201510861404.4A Division CN105513748A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor protective cover |
| CN201510864466.0A Division CN105374531A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device for transformer |
| CN201510864347.5A Division CN105374508A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device with protective cover |
| CN201510860461.0A Division CN105390235A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102938290A CN102938290A (en) | 2013-02-20 |
| CN102938290B true CN102938290B (en) | 2015-12-23 |
Family
ID=47697180
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811163924.8A Pending CN109448954A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device |
| CN201510860461.0A Pending CN105390235A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus |
| CN201210506222.1A Active CN102938290B (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device and protective cover thereof |
| CN201510861404.4A Pending CN105513748A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor protective cover |
| CN201510864466.0A Pending CN105374531A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device for transformer |
| CN201510864347.5A Pending CN105374508A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device with protective cover |
| CN201510864340.3A Pending CN105390259A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus with protective cover |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811163924.8A Pending CN109448954A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature detecting resistance device |
| CN201510860461.0A Pending CN105390235A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510861404.4A Pending CN105513748A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor protective cover |
| CN201510864466.0A Pending CN105374531A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device for transformer |
| CN201510864347.5A Pending CN105374508A (en) | 2012-11-30 | 2012-11-30 | Temperature measuring resistor device with protective cover |
| CN201510864340.3A Pending CN105390259A (en) | 2012-11-30 | 2012-11-30 | Transformer temperature measurement resistor apparatus with protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (7) | CN109448954A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112735786A (en) * | 2020-12-21 | 2021-04-30 | 台州禾墨装饰设计有限公司 | Protective cover of temperature measuring resistor device of transformer |
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- 2012-11-30 CN CN201811163924.8A patent/CN109448954A/en active Pending
- 2012-11-30 CN CN201510860461.0A patent/CN105390235A/en active Pending
- 2012-11-30 CN CN201210506222.1A patent/CN102938290B/en active Active
- 2012-11-30 CN CN201510861404.4A patent/CN105513748A/en active Pending
- 2012-11-30 CN CN201510864466.0A patent/CN105374531A/en active Pending
- 2012-11-30 CN CN201510864347.5A patent/CN105374508A/en active Pending
- 2012-11-30 CN CN201510864340.3A patent/CN105390259A/en active Pending
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| CN2355415Y (en) * | 1998-10-26 | 1999-12-22 | 王勇维 | Protective voltage mutual inductors on posts |
| CN201636494U (en) * | 2010-01-13 | 2010-11-17 | 西安鹏程机电设备有限公司 | Closed valve protection cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112735786A (en) * | 2020-12-21 | 2021-04-30 | 台州禾墨装饰设计有限公司 | Protective cover of temperature measuring resistor device of transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105390259A (en) | 2016-03-09 |
| CN102938290A (en) | 2013-02-20 |
| CN105390235A (en) | 2016-03-09 |
| CN105513748A (en) | 2016-04-20 |
| CN105374531A (en) | 2016-03-02 |
| CN109448954A (en) | 2019-03-08 |
| CN105374508A (en) | 2016-03-02 |
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