CN114236319B - Main transformer measuring device - Google Patents
Main transformer measuring device Download PDFInfo
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- CN114236319B CN114236319B CN202111248682.4A CN202111248682A CN114236319B CN 114236319 B CN114236319 B CN 114236319B CN 202111248682 A CN202111248682 A CN 202111248682A CN 114236319 B CN114236319 B CN 114236319B
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- conductive
- measuring
- main transformer
- insulation
- measuring part
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- 238000009413 insulation Methods 0.000 claims abstract description 62
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The application relates to the field of power engineering, in particular to a main transformer measuring device which comprises a conductive connecting piece and an insulating measuring piece; the conductive connecting piece is provided with a bus connecting part and an auxiliary measuring part, the bus connecting part is used for being connected with a main transformer, the bus connecting part is electrically connected with the auxiliary measuring part, and the auxiliary measuring part is provided with a clamping groove; the insulation measuring piece is provided with an insulation holding part and a conductive measuring part, the conductive measuring part is electrically connected with the auxiliary measuring part, and the conductive measuring part is provided with a buckle clamped with the clamping groove. According to the main transformer measuring device provided by the application, the conductive connecting piece is additionally arranged on the main transformer bus, and the insulation measuring piece is utilized to rapidly, safely and accurately measure the main transformer insulation, so that potential safety hazards are eliminated, the stable connection between a measuring tool and a part to be measured during measurement is ensured, and measurement errors are avoided.
Description
Technical Field
The application relates to the field of power engineering, in particular to a main transformer measuring device.
Background
When the main transformer of the power station is stopped and is in service again, the insulation condition before and after the main transformer insulation comparison is detected according to the specified requirement. At present, the main transformer insulation measurement operation requires an operator to climb to the top of the main transformer with more measurement tools, and the main transformer voltage is measured at the soft connection position of the lifting seat or at the lead wire of the neutral point of the main transformer or at the side disconnecting link of the main transformer. The measurement modes have certain potential safety hazards during measurement, the stability of connection between a measurement tool and a part to be measured cannot be guaranteed, and measurement errors are easy to generate.
Disclosure of Invention
The technical problems to be solved by the application are as follows: the main transformer measuring device for improving the measuring safety is provided.
In order to solve the technical problems, the application adopts the following technical scheme: a main transformer measuring device comprises a conductive connecting piece and an insulation measuring piece;
the conductive connecting piece is provided with a bus connecting part and an auxiliary measuring part, the bus connecting part is used for being connected with a main transformer, the bus connecting part is electrically connected with the auxiliary measuring part, and the auxiliary measuring part is provided with a clamping groove;
the insulation measuring piece is provided with an insulation holding part and a conductive measuring part, the conductive measuring part is electrically connected with the auxiliary measuring part, and the conductive measuring part is provided with a buckle clamped with the clamping groove.
Further, the conductive connecting piece comprises a conductive bolt, the bus connecting portion is arranged on the conductive bolt, and the conductive bolt is used for being locked with the main transformer.
Further, the conductive connecting piece further comprises a base and a conductive lock, the base is electrically connected with the main transformer through the conductive bolt, the conductive lock is embedded in the base, and the auxiliary measuring part is arranged on the conductive lock.
Further, the conductive connecting piece further comprises an insulation protection sleeve, the insulation protection sleeve is arranged on the base, the insulation protection sleeve is sleeved outside the conductive lockset, and a measuring hole is formed in the insulation protection sleeve at a position corresponding to the auxiliary measuring part.
Further, the auxiliary measuring part is provided with a slot, the clamping groove is formed in the inner wall of the slot, the conductive measuring part is provided with a column head inserted into the slot, and the buckle is arranged on the outer wall of the column head.
Further, the insulation measuring piece comprises an operation rod, and the insulation holding part and the conductive measuring part are respectively arranged at two opposite ends of the operation rod.
Further, the operation rod comprises more than two spliced rods mutually, one ends of the spliced more than two spliced rods are provided with the insulating holding parts, and the other ends of the spliced more than two spliced rods are provided with the conductive measuring parts.
Further, the clamping groove is an annular groove, and the column head is rotatably arranged on the conductive measuring part.
Further, the operation rod further comprises a handle, a pull rope and a spring, the handle is rotationally connected with the insulation holding part, one end of the pull rope is wound on the handle, the other end of the pull rope is connected with the column head, and the spring is arranged between the column head and the conductive measuring part.
Further, the electric resistance meter is electrically connected with the conductive measuring part.
The application has the beneficial effects that: the utility model provides a main transformer measuring device installs conductive connection spare additional on main transformer generating line, and operating personnel only need stand and operate insulating measurement spare in ground and can control conductive connection spare and insulating measurement spare joint, utilizes insulating measurement spare quick, safe, accurate measurement main transformer insulation, has not only eliminated the potential safety hazard, guarantees moreover that measuring tool and the position of awaiting measuring are connected stably when measuring, avoids producing measuring error.
Drawings
FIG. 1 is a schematic diagram of a main transformer measuring device according to an embodiment of the present application;
FIG. 2 is a top view of a conductive connector according to an embodiment of the present application;
FIG. 3 is a front view of a conductive connector according to an embodiment of the present application;
FIG. 4 is a side view of a conductive connector according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a conductive lock according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a card slot according to an embodiment of the application;
FIG. 7 is a schematic diagram of a conductive bolt according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a portion of a main transformer measuring device according to an embodiment of the present application;
FIG. 9 is another partial schematic view of a main transformer measuring device according to an embodiment of the present application;
description of the reference numerals:
1. a conductive connection; 11. a bus connection part; 12. an auxiliary measuring unit; 121. a clamping groove; 122. a slot; 13. a conductive bolt; 14. a base; 15. a conductive lock; 16. an insulating protective sleeve; 2. an insulation measurement member; 21. an insulating grip; 211. an operation lever; 2111. splicing the connecting rods; 2112. a handle; 2113. a pull rope; 2114. a spring; 22. a conductive measurement section; 221. column head; 2211. a buckle; 3. resistance meter.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present application in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The main transformer measuring device provided by the application is used for main transformer insulation detection in the main transformer stopping and re-service process, and can be used for rapidly, safely and accurately measuring the main transformer insulation.
Referring to fig. 1 to 9, a main transformer measuring device includes a conductive connecting member 1 and an insulating measuring member 2;
the conductive connecting piece 1 is provided with a bus connecting part 11 and an auxiliary measuring part 12, the bus connecting part 11 is used for being connected with a main transformer, the bus connecting part 11 is electrically connected with the auxiliary measuring part 12, and the auxiliary measuring part 12 is provided with a clamping groove 121;
the insulation measuring piece 2 is provided with an insulation holding part 21 and a conductive measuring part 22, the conductive measuring part 22 is electrically connected with the auxiliary measuring part 12, and the conductive measuring part 22 is provided with a buckle 2211 which is clamped with the clamping groove 121.
From the above description, the beneficial effects of the application are as follows: the structure is stable, the operator can rapidly, safely and accurately measure the main transformer insulation by only standing on the ground, the potential safety hazard is eliminated, the measurement tool and the part to be measured are ensured to be connected stably during measurement, and the measurement error is avoided.
In an alternative embodiment, the conductive connector 1 includes a conductive bolt 13, and the bus bar connection portion 11 is disposed on the conductive bolt 13, and the conductive bolt 13 is configured to be locked with the main transformer.
As can be seen from the above description, the conductive bolt 13 is used for connecting the conductive connector 1 with the main transformer, and also for mechanically connecting the conductive bolt 13 with the main transformer, so as to ensure that the measuring tool is stably connected with the part to be measured during measurement, and avoid generating measurement errors.
In an alternative embodiment, the conductive connecting piece 1 further includes a base 14 and a conductive lock 15, the base 14 is connected with the main transformer through the conductive bolt 13, the conductive lock 15 is embedded in the base 14, and the auxiliary measuring part 12 is disposed on the conductive lock 15.
As is evident from the above description, the base 14 is used to mount the conductive lock 15, and the conductive lock 15 is used to realize a detachable and stable connection between the conductive connector 1 and the insulation measuring member 2.
In an alternative embodiment, the conductive connecting piece 1 further includes an insulation protection sleeve 16, the insulation protection sleeve 16 is disposed on the base 14, the insulation protection sleeve 16 is sleeved outside the conductive lock 15, and a measuring hole is disposed on the insulation protection sleeve 16 corresponding to the position of the auxiliary measuring portion 12.
As can be seen from the above description, the insulating protection sleeve 16 is disposed outside the conductive lock 15 for insulating protection, so as to improve the safety of installing the conductive connecting piece 1.
In an alternative embodiment, the auxiliary measuring part 12 is provided with a slot 122, the clamping groove 121 is arranged on the inner wall of the slot 122, the conductive measuring part 22 is provided with a stud 221 inserted into the slot 122, and the buckle 2211 is arranged on the outer wall of the stud 221.
As can be seen from the above description, after centering and positioning are performed by the plug-in fit between the stud 221 and the slot 122, the fastener 2211 is locked with the clamping groove 121, so as to ensure that the conductive connector 1 and the insulation measuring member 2 are stably connected in the measuring process.
In an alternative embodiment, the insulation measuring part 2 includes an operation lever 211, and the insulation grip part 21 and the conductive measuring part 22 are respectively disposed at opposite ends of the operation lever 211.
As can be seen from the above description, the operation lever 211 is convenient for a person to hold and operate, so that the operator can perform measurement only by standing on the ground to operate the operation lever 211.
In an alternative embodiment, the operation rod 211 includes two or more splicing rods 2111 spliced with each other, one end of each spliced two or more splicing rods 2111 is provided with the insulating holding portion 21, and the other end of each spliced two or more splicing rods 2111 is provided with the conductive measuring portion 22.
As can be seen from the above description, the operation lever 211 adopts a spliced structure, and the number of the splicing bars 2111 can be flexibly adjusted according to the height of the main position to be measured, so that the operation is convenient.
In an alternative embodiment, the clamping groove 121 is an annular groove, and the stud 221 is rotatably disposed on the conductive measuring portion 22.
As can be seen from the above description, the clamping groove 121 adopts a ring structure, and the post 221 is inserted into the slot 122 to realize locking engagement with the clamping groove 121 by rotating.
In an alternative embodiment, the operation rod 211 further includes a handle 2112, a pull cord 2113, and a spring 2114, the handle 2112 is rotatably connected to the insulating grip 21, one end of the pull cord 2113 is wound around the handle 2112, the other end of the pull cord 2113 is connected to the stud 221, and the spring 2114 is disposed between the stud 221 and the conductive measuring portion 22.
As can be seen from the above description, when in use, a person presses the handle 2112, the handle 2112 pulls the pull rope 2113 to pull the stud 221, the stud 221 is locked with the clamping groove 121 after rotating, measurement is started, after the measurement is completed, the person releases the handle 2112, and the stud 221 is reset under the action of the spring 2114, so that the conductive connecting piece 1 and the insulation measuring piece 2 can be separated.
In an alternative embodiment, a resistance meter 3 is further included, the resistance meter 3 being electrically connected to the conductive measuring portion 22.
As is apparent from the above description, the resistance meter 3 is connected to the conductive measurement section 22 by a cable, thereby measuring the main transformer.
Referring to fig. 1 to 9, a first embodiment of the present application is as follows: a main transformer measuring device comprises a conductive connecting piece 1 and an insulating measuring piece 2; the conductive connecting piece 1 is provided with a bus connecting part 11 and an auxiliary measuring part 12, the bus connecting part 11 is used for being connected with a main transformer, the bus connecting part 11 is electrically connected with the auxiliary measuring part 12, and the auxiliary measuring part 12 is provided with a clamping groove 121; the insulation measuring piece 2 is provided with an insulation holding part 21 and a conductive measuring part 22, the conductive measuring part 22 is electrically connected with the auxiliary measuring part 12, and the conductive measuring part 22 is provided with a buckle 2211 which is clamped with the clamping groove 121. The working principle of the embodiment is as follows: during installation, the conductive connecting piece 1 is installed on the main transformer bus, the conductive connecting piece 1 is connected with the main transformer through the bus connecting part 11, when the device is used, a person holds the insulation holding part 21 of the insulation measuring piece 2, the conductive measuring part 22 of the insulation measuring piece 2 is close to the conductive connecting piece 1, the conductive measuring part 22 is used for connecting the auxiliary measuring part 12, and the conductive connecting piece 1 is connected with the insulation measuring piece 2 through the clamping fit of the clamping buckle 2211 and the clamping groove 121.
Referring to fig. 1 to 9, a second embodiment of the present application is as follows: the conductive connecting piece 1 comprises a conductive bolt 13, the bus bar connecting part 11 is arranged on the conductive bolt 13, and the conductive bolt 13 is used for being locked with the main transformer. The conductive connecting piece 1 further comprises a base 14 and a conductive lock 15, the base 14 is connected with the main transformer through the conductive bolt 13, the conductive lock 15 is embedded in the base 14, and the auxiliary measuring part 12 is arranged on the conductive lock 15. The conductive connecting piece 1 further comprises an insulation protection sleeve 16, the insulation protection sleeve 16 is arranged on the base 14, the insulation protection sleeve 16 is sleeved outside the conductive lock 15, and a measuring hole is formed in the insulation protection sleeve 16 at a position corresponding to the auxiliary measuring part 12. The auxiliary measuring part 12 is provided with a slot 122, the cross section of the slot 122 is circular, the clamping groove 121 is arranged on the inner wall of the slot 122, the conductive measuring part 22 is provided with a column head 221 inserted into the slot 122, and the buckle 2211 is arranged on the outer wall of the column head 221. The insulation measuring member 2 includes an operation lever 211, and the insulation grip portion 21 and the conduction measuring portion 22 are provided at opposite ends of the operation lever 211, respectively. The operation rod 211 includes two or more splicing rods 2111 spliced with each other, one end of each splicing rod 2111 is provided with the insulating holding portion 21, and the other end of each splicing rod 2111 is provided with the conductive measuring portion 22. The clamping groove 121 is an annular groove, the cross section of the clamping groove 121 is square, and the column head 221 is rotatably arranged on the conductive measuring part 22. The operation rod 211 further comprises a handle 2112, a pull rope 2113 and a spring 2114, wherein the handle 2112 is rotatably connected with the insulation holding part 21, one end of the pull rope 2113 is wound on the handle 2112, the other end of the pull rope 2113 is connected with the column head 221, and the spring 2114 is arranged between the column head 221 and the conductive measuring part 22. And a resistance meter 3, wherein the resistance meter 3 is electrically connected with the conductive measurement part 22.
In summary, the application provides a main transformer measuring device, in which a conductive connecting piece is additionally arranged on a main transformer bus, an operator can control the clamping connection of the conductive connecting piece and an insulation measuring piece only by standing on the ground to operate the insulation measuring piece, and the insulation measuring piece is utilized to rapidly, safely and accurately measure the insulation of the main transformer, so that potential safety hazards are eliminated, the stable connection of a measuring tool and a part to be measured during measurement is ensured, and measurement errors are avoided. The conductive bolt is used as a conductive connecting piece to be connected with the main transformer and is also used for mechanically connecting the conductive bolt with the main transformer, so that the measurement tool and the part to be measured are ensured to be connected stably during measurement, and measurement errors are avoided. The base is used for installing electrically conductive tool to lock, and electrically conductive tool to lock is used for realizing dismantling between electrically conductive connecting piece and the insulating measurement piece and stably connects. The insulating protective sleeve is arranged outside the conductive lockset for insulating protection, so that the safety of additionally installing the conductive connecting piece is improved. After centering and positioning are performed through the plug-in matching of the column head and the slot, the clamping buckle and the clamping groove are used for clamping and locking, so that the conductive connecting piece and the insulation measuring piece are ensured to be connected stably in the measuring process. The operating rod is used for facilitating the holding operation of personnel, so that the operating personnel can measure only by standing on the ground to operate the operating rod. The operating rod adopts a spliced structure, the number of the spliced rods can be flexibly adjusted according to the height of the main position to be measured, and the use is convenient. The clamping groove adopts an annular structure, and the locking fit with the clamping groove is realized through rotation after the column head is inserted into the slot. When the electric conduction measuring device is used, a person presses the handle, the handle pulls the pull rope to pull the column head, the column head is locked with the clamping groove after rotating, measurement is started, after the measurement is finished, the person releases the handle, the column head is reset under the action of the spring, and then the electric conduction connecting piece and the insulation measuring piece can be separated. The resistance meter is connected with the conductive measuring part through a cable, so as to measure the main transformer.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent changes made by the specification and drawings of the present application, or direct or indirect application in the relevant art, are included in the scope of the present application.
Claims (4)
1. The main transformer measuring device is characterized by comprising a conductive connecting piece and an insulation measuring piece;
the conductive connecting piece is provided with a bus connecting part and an auxiliary measuring part, the bus connecting part is used for being connected with a main transformer, the bus connecting part is electrically connected with the auxiliary measuring part, and the auxiliary measuring part is provided with a clamping groove;
the insulation measuring piece is provided with an insulation holding part and a conductive measuring part, the conductive measuring part is electrically connected with the auxiliary measuring part, and the conductive measuring part is provided with a buckle clamped with the clamping groove;
the conductive connecting piece comprises a conductive bolt, the bus connecting part is arranged on the conductive bolt, and the conductive bolt is used for being locked with the main transformer;
the auxiliary measuring part is provided with a slot, the clamping groove is arranged on the inner wall of the slot, the conductive measuring part is provided with a column head spliced with the slot, and the buckle is arranged on the outer wall of the column head;
the clamping groove is an annular groove, and the column head is rotatably arranged on the conductive measuring part;
the insulation measuring piece comprises an operating rod, and the insulation holding part and the conductive measuring part are respectively arranged at two opposite ends of the operating rod;
the operation rod further comprises a handle, a pull rope and a spring, wherein the handle is rotationally connected with the insulation holding part, one end of the pull rope is wound on the handle, the other end of the pull rope is connected with the column head, and the spring is arranged between the column head and the conductive measurement part;
the conductive connecting piece further comprises a base and a conductive lock, the base is electrically connected with the main transformer through the conductive bolt, the conductive lock is embedded in the base, and the auxiliary measuring part is arranged on the conductive lock.
2. The main transformer measurement device according to claim 1, wherein the conductive connecting piece further comprises an insulation protection sleeve, the insulation protection sleeve is arranged on the base, the insulation protection sleeve is sleeved outside the conductive lock, and a measurement hole is formed in the insulation protection sleeve at a position corresponding to the auxiliary measurement part.
3. The main transformer measurement device according to claim 1, wherein the operation rod comprises more than two splicing rods spliced with each other, one end of each splicing rod is provided with the insulating holding part, and the other end of each splicing rod is provided with the conductive measurement part.
4. The main transformer measurement device according to claim 1, further comprising a resistance meter electrically connected to the conductive measurement section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248682.4A CN114236319B (en) | 2021-10-26 | 2021-10-26 | Main transformer measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248682.4A CN114236319B (en) | 2021-10-26 | 2021-10-26 | Main transformer measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114236319A CN114236319A (en) | 2022-03-25 |
| CN114236319B true CN114236319B (en) | 2023-11-17 |
Family
ID=80743268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111248682.4A Active CN114236319B (en) | 2021-10-26 | 2021-10-26 | Main transformer measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114236319B (en) |
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| CN103346451A (en) * | 2013-06-29 | 2013-10-09 | 国家电网公司 | 220kV transformer test short-circuit wire connector |
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| US8496657B2 (en) * | 2006-02-07 | 2013-07-30 | P Tech, Llc. | Methods for utilizing vibratory energy to weld, stake and/or remove implants |
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2021
- 2021-10-26 CN CN202111248682.4A patent/CN114236319B/en active Active
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| CN101789566A (en) * | 2009-11-30 | 2010-07-28 | 福建省电力有限公司厦门电业局 | Insulating operation bar of high-voltage insulating short-circuited device |
| CN103346451A (en) * | 2013-06-29 | 2013-10-09 | 国家电网公司 | 220kV transformer test short-circuit wire connector |
| CN107703337A (en) * | 2017-12-06 | 2018-02-16 | 李琳君 | Arrester live detection experimental rig |
| CN207800931U (en) * | 2018-02-27 | 2018-08-31 | 内蒙古伊泰煤炭股份有限公司 | Detachable finger-contact type ground wire and earthing or grounding means |
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| CN114236319A (en) | 2022-03-25 |
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