CN202853794U - Platinum resistor checking bench for transformer oil level thermometer - Google Patents
Platinum resistor checking bench for transformer oil level thermometer Download PDFInfo
- Publication number
- CN202853794U CN202853794U CN 201220424314 CN201220424314U CN202853794U CN 202853794 U CN202853794 U CN 202853794U CN 201220424314 CN201220424314 CN 201220424314 CN 201220424314 U CN201220424314 U CN 201220424314U CN 202853794 U CN202853794 U CN 202853794U
- Authority
- CN
- China
- Prior art keywords
- thermometer
- platinum resistance
- standard digital
- oil surface
- transformer oil
- 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.)
- Expired - Fee Related
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000012795 verification Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Abstract
Disclosed is a platinum resistor checking bench for a transformer oil level thermometer. The upper portion of the checking bench is provided with an instrument panel and an operating platform, wherein the instrument panel is provided with two standard digital thermometers; two hooks are installed below each of the standard digital thermometers; three circular holes are arranged below every two hooks; the right side of the operating platform is provided with a thermometer calibration instrument in a built-in manner; the R1, R2, and R3 terminals of the standard digit thermometer are respectively connected with a platinum resistor terminal of an oil level thermometer; AC220 terminal is connected with a power supply; and the lower portion of the checking bench is provided with tools and a storage cabinet. The novel checking bench raises the calibrating precision of the instrument and simplifies the complicated on-site calibrating operation.
Description
Technical field
The utility model relates to a kind of calibration equipment of thermometer, particularly a kind of transformer oil surface thermometer platinum resistance checking table.
Background technology
At present, in electric system, the transformer thermometer verification is the regular works of an annual test, mainly divides three parts: the one, and the verification of table meter simulation part (pointer) fundamental error, the 2nd, the verification of functional node, the 3rd, the verification of platinum resistance; Wherein the conventional method that adopts of the platinum resistance verification of oil surface temperature meter is, each calibration points at dial plate, utilize multimeter to measure the output resistance of platinum resistance, corresponding " the corresponding table of resistance value-temperature " reads temperature value corresponding to platinum resistance more indirectly, the problem that this method of calibration exists is, the reading of temperature is not directly perceived, inaccurate, its reason is when utilizing the ohms range measured resistance value of multimeter, and the error of instrument itself, contact resistance, the collimation error etc. all can be brought to a certain degree impact to measurement result.
Novel transformer oil surface temperature meter platinum resistance checking table adopts the standard digital thermometer of 0.5 grade of accuracy, and the platinum resistance of transformer oil surface thermometer directly is converted to digital temperature signal, has improved checking precision, has simplified loaded down with trivial details field-checking operation.
The utility model content
The purpose of this utility model be to provide a kind of accurately and make things convenient for the checking table of verification transformer oil surface thermometer platinum resistance.
In order to achieve the above object, adopted following technical scheme: the upper design of transformer oil surface thermometer platinum resistance checking table is instrument face plate and the operating platform of checking table, embed 2 standard digital thermometers of installation at instrument face plate, wrap with the insulating material edge around the standard digital thermometer, 2 hooks that are used for hanging the oil surface temperature meter are installed in the below of each standard digital thermometer, and the below of each hook is provided with 3 circular holes; At the right side of operating platform embedded installation thermometer tester; The R1 of standard digital thermometer, R2, R3 terminal are connected with the corresponding end of oil surface temperature meter respectively, and AC220 terminal and power supply join.
The bottom of transformer oil surface thermometer platinum resistance checking table arranges instrument and locker.
The application of the checking table of transformer oil surface thermometer platinum resistance has improved the checking precision of instrument, has improved loaded down with trivial details field-checking operation.
Description of drawings
Fig. 1 transformer oil surface thermometer platinum resistance checking table structural representation
In the drawings, 1-checking table, 2-platinum resistance p-wire, 3-circular hole, 4-hook, 5-standard digital thermometer, 6-thermometer tester, 7-probe insertion, 8-display screen, 9-guidance panel;
Fig. 2 transformer oil surface thermometer platinum resistance checking table circuit diagram
In the drawings, 10-standard digital thermometer terminal block, 11-power lead.
Embodiment
Below in conjunction with accompanying drawing, transformer oil surface thermometer platinum resistance checking table and structure thereof are elaborated:
As seen from Figure 1, transformer oil surface thermometer platinum resistance checking table 1 is divided into upper and lower two parts, and the upper part of checking table is instrument face plate and the operating platform of platinum resistance checking table 1, and lower part is instrument and locker, can be separated into different cabinets in the cabinet; At instrument face plate 2 embedded standard digital thermometers 5 are installed, wrap with the insulating material edge around the standard digital thermometer 5, and can easy disassembly, standard digital thermometer 5 adopts 0.5 grade of XMT-288FC type temperature digital display controller as the standard digital thermometer of verification platinum resistance (2.5 grades), this table can be converted into temperature value with the platinum resistance resistance, and standard digital thermometer 5 is that 90mm, nearside side are 85mm apart from the top of checking table panel.20mm place below each standard digital thermometer 5,2 hooks 4 that are used for hanging the oil surface temperature meter are installed, the 320mm place, below of each hook 4 is provided with 3 circular holes 3 that pass through platinum resistance p-wire 2, and circular hole 3 is advisable with diameter 5～6mm, is used for platinum resistance p-wire 2 is passed through instrument face plate.
As seen from Figure 2, the electric connecting relation of checking table is: the R1 of standard digital thermometer 5, R2, R3 terminal are connected with the corresponding end of oil surface temperature meter platinum resistance respectively, and AC220 terminal and power supply join.
The thermometer tester 6 that is used for verification operation in the embedded installation in the right side of operating platform, on thermometer tester 6, the oil surface temperature of insertion meter probe (embedded platinum resistance) jack 7 is arranged, the centre is the digital display screen 8 of thermometer tester 6, the below is guidance panel 9, is used for setting different temperature; Thermometer tester 6 can be selected the GB product, and adjustable constant temperature field is provided.
Transformer oil surface thermometer platinum resistance checking table can adopt the thick iron plate of 1.5mm to make, overall dimension is: long 800mm, wide 54.5mm, high 1140mm, the whole selection standard spares of the assembling parts of checking table, parts are not elaborated at this take best fit as standard.
Claims (2)
1. transformer oil surface thermometer platinum resistance checking table, it is characterized in that: the top of described checking table (1) is instrument face plate and the operating platform of platinum resistance checking table, embed installation 2 standard digital thermometers (5) at instrument face plate, wrap with the insulating material edge around the standard digital thermometer (5), 2 hooks (4) that are used for hanging the oil surface temperature meter are installed in the below of each standard digital thermometer (5), and the below of each hook (4) is provided with 3 circular holes (3); At the right side of operating platform embedded installation thermometer tester (6); R1, the R2 of standard digital thermometer (5), R3 terminal are connected with the corresponding end of oil surface temperature meter platinum resistance respectively, and AC220 terminal and power supply join.
2. transformer oil surface thermometer platinum resistance checking table according to claim 1, it is characterized in that: the bottom at described checking table (1) arranges instrument and locker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424314 CN202853794U (en) | 2012-08-26 | 2012-08-26 | Platinum resistor checking bench for transformer oil level thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424314 CN202853794U (en) | 2012-08-26 | 2012-08-26 | Platinum resistor checking bench for transformer oil level thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853794U true CN202853794U (en) | 2013-04-03 |
Family
ID=47984978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424314 Expired - Fee Related CN202853794U (en) | 2012-08-26 | 2012-08-26 | Platinum resistor checking bench for transformer oil level thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219023A (en) * | 2017-07-14 | 2017-09-29 | 国网福建省电力有限公司 | A kind of transformer oil surface thermometer intelligent online check analysis system |
-
2012
- 2012-08-26 CN CN 201220424314 patent/CN202853794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219023A (en) * | 2017-07-14 | 2017-09-29 | 国网福建省电力有限公司 | A kind of transformer oil surface thermometer intelligent online check analysis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131127 Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: State Grid Hebei Electric Power Company Patentee after: Baoding Power Supply Branch Company, State Grid Hebei Electric Power Company Address before: 071051 No. 138 sunny north street, new urban district, Hebei, Baoding Patentee before: Baoding Power Supply Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20180826 |