CN115586373A - Auxiliary device for testing direct current resistance of high-voltage side of transformer - Google Patents
Auxiliary device for testing direct current resistance of high-voltage side of transformer Download PDFInfo
- Publication number
- CN115586373A CN115586373A CN202211120404.5A CN202211120404A CN115586373A CN 115586373 A CN115586373 A CN 115586373A CN 202211120404 A CN202211120404 A CN 202211120404A CN 115586373 A CN115586373 A CN 115586373A
- Authority
- CN
- China
- Prior art keywords
- voltage side
- rod
- testing
- direct current
- transformer
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention relates to the technical field of transformer detection, in particular to an auxiliary device for testing a high-voltage side direct current resistance of a transformer, which comprises an insulating rod and a wiring kit, wherein the wiring kit is detachably arranged on a connecting post of a high-voltage side sleeve of the transformer.
Description
Technical Field
The invention relates to the technical field of transformer detection, in particular to an auxiliary device for testing a direct current resistance of a high-voltage side of a transformer.
Background
The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, is basic equipment for power transmission and distribution, and is widely applied to the fields of industry, agriculture, traffic, urban communities and the like. About 1700 thousands of transformers run on the network in China, and the total capacity is about 110 hundred million volt-ampere.
At present, the main transformer high-voltage side direct current resistance test of 110kV and above mainly depends on the experimenter to climb up the main transformer high-voltage side sleeve to test the wiring, thereby carrying out the direct current resistance test, and the mode has the following disadvantages: firstly, the existing testing means needs a tester to climb the main transformer, so that the risk of falling from high altitude exists, and the safety cannot be guaranteed; the second existing testing method has long wiring time, which affects the testing efficiency, so that improvement is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the auxiliary device for testing the direct current resistance of the high-voltage side of the transformer, which is safe and convenient to use and wide in application range.
The purpose of the invention is realized as follows: an auxiliary device for testing a direct current resistance at a high-voltage side of a transformer comprises an insulating rod and a wiring kit which is detachably arranged on a wiring column of a bushing at the high-voltage side of the transformer;
the insulation device comprises an insulation rod, a spiral screw rod, a rotating shaft, a fixing rod and a resistance testing device, wherein the spiral screw rod is arranged inside the insulation rod, the upper middle part of the spiral screw rod penetrates through the insulation rod, the shell of the spiral screw rod is in threaded connection with the upper surface of the insulation rod, the lower end of the spiral screw rod is sleeved with a first bevel gear, the side wall of the insulation rod is provided with a through hole, the rotating shaft is rotatably connected with the through hole, one end, arranged inside the insulation rod, of the rotating shaft is provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, one end, arranged outside the insulation rod, of the rotating shaft is provided with a rotating handle, the upper end of the spiral screw rod is provided with a work box, the fixing rod is arranged between the work box and the insulation rod, the upper end of the fixing rod penetrates through the work box and is arranged inside the work box, the lower end of the fixing rod is fixedly connected with the insulation rod, and the surface of the work box is provided with the resistance testing device;
the wiring kit includes insulating barrel, the bottom opening side of insulating barrel is inserted on transformer high pressure side bushing terminal, be equipped with two arc boards in the insulating barrel, the arc board with connect through a plurality of compression spring between the inside wall of insulating barrel, resistance testing arrangement with be equipped with the binding post between the arc board, the lateral wall of insulating barrel is equipped with positioning mechanism, positioning mechanism is used for connecting between insulating barrel and the work box.
Preferably, the positioning mechanism comprises a plurality of parallel connection plates, the connection plates are fixedly connected with the outer side wall of the insulating cylinder, connection holes are formed in the middle of the connection plates, a connection piece is detachably connected to the working box, and the connection piece penetrates through the connection holes.
Preferably, the connecting piece includes integrated into one piece's spliced pole and mounting panel, the mounting panel pin connect in the work box surface, the diameter value of spliced pole with the aperture value of connecting hole equals, the lateral wall of the other end of spliced pole is equipped with the arch, fixedly connected with extension board on the work box, the extension board surface be equipped with protruding assorted slot.
Preferably, the number of the connecting plates is three.
Preferably, the insulating cylinder is made of polytetrafluoroethylene.
Preferably, the material of the junction pole is copper.
Preferably, the arc plate is made of copper.
Preferably, a handle is arranged on the outer side of the rotating handle.
The invention has the beneficial effects that: this auxiliary device is used in test of transformer high pressure side direct current resistance, through insulator spindle and demountable installation the wiring external member on transformer high pressure side sleeve pipe terminal, the staff need not scramble the main transformer sleeve pipe, at subaerial handheld insulator spindle, insert the wiring external member on the high pressure side sleeve pipe terminal, alright carry out the experimental wiring of transformer high pressure side direct current resistance test, use convenient and can ensure staff's personal safety.
Through the level of screw rod regulation work box, through the clearance between two arc boards of insulating barrel inner arc board and compression spring cooperation adjustment, and compression spring's resilience force orders about the outside that insulating barrel installation back arc board presss from both sides the terminal, is applicable to the terminal of the different diameters of transformer and transformer high-pressure side sleeve pipe of co-altitude not, further improves device application scope and practicality.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the insulating rod of the present invention.
Fig. 3 is a schematic view of the internal structure of the insulating cylinder according to the present invention.
Fig. 4 is a schematic view of a matching structure of the positioning mechanism and the insulating cylinder according to the present invention.
Fig. 5 is a schematic view of another perspective matching structure of the positioning mechanism and the insulating cylinder according to the present invention.
FIG. 6 is a schematic view of the fitting structure of the mounting plate and the work box of the present invention.
Fig. 7 is a schematic view of the connector structure of the present invention.
In the figure: 1. the insulation rod, 2, a wiring kit, 3, a screw rod, 4, a first bevel gear, 5, a second bevel gear, 6, a rotating handle, 7, a working box, 8, a fixing rod, 9, a resistance testing device, 10, an insulation cylinder, 11, an arc plate, 12, a compression spring, 13, a wiring rod, 14, a positioning mechanism, 15, a connecting plate, 16, a connecting hole, 17, a connecting piece, 18, a connecting column, 19, a mounting plate, 20, a protrusion, 21, a supporting plate, 22, a slot, 23, a handle, 24 and a rotating shaft.
Detailed Description
The invention will be further described with reference to the accompanying figures 1-7.
Example 1
As shown in fig. 1 to 7, the auxiliary device for testing the direct current resistance at the high-voltage side of the transformer comprises an insulating rod 1 and a wiring kit 2 which is detachably mounted on a wiring column of a bushing at the high-voltage side of the transformer;
the inside of insulator spindle 1 is equipped with screw rod 3, screw rod 3's last middle part runs through insulator spindle 1 and shell and insulator spindle 1's upper surface threaded connection, screw rod 3's lower pot head is equipped with first bevel gear 4, the through-hole has been seted up to the lateral wall of insulator spindle 1, the through-hole internal rotation is connected with pivot 24, the inside one end of insulator spindle 1 is arranged in to pivot 24 installs second bevel gear 5, second bevel gear 5 and first bevel gear 4 meshing, the outside one end fixedly connected with of insulator spindle 1 is arranged in to pivot 24, the upper end of screw rod 3 is equipped with work box 7, be equipped with dead lever 8 between work box 7 and insulator spindle 1, the upper end of dead lever 8 runs through work box 7 and places in work box 7, the lower extreme and insulator spindle 1 fixed connection, the surface mounting of work box 7 has resistance testing arrangement 9, resistance testing arrangement 9 is the existing equipment mature on the market, the preferred model is huayi electric power-DMG 2671F in this scheme, be used for test and show transformer high-voltage side direct current resistance.
When the insulating rod 1 is used specifically, the rotating handle 6 rotates clockwise or anticlockwise, the rotating handle 6 drives the rotating shaft 24 to rotate synchronously, the rotating shaft 24 drives the second bevel gear 5 to rotate synchronously, the second bevel gear 5 drives the first bevel gear 4 to rotate synchronously under the meshing effect, and the spiral screw rod 3 rotates synchronously, and the fixing rod 8 plays a role in limiting, so that the working height of the working box 7 is adjusted by the relative displacement of the working box 7 in the vertical direction, the insulating rod is adaptive to various transformers, and the working efficiency is improved;
the wiring kit 2 comprises an insulating cylinder 10, the bottom opening side of the insulating cylinder 10 is inserted into a transformer high-voltage side bushing terminal post, two arc plates 11 are installed in the insulating cylinder 10, the arc plates 11 are connected with the inner side wall of the insulating cylinder 10 through a plurality of compression springs 12, the diameters of the transformer high-voltage side bushing terminal posts are different, the gap between the two arc plates 11 can be adjusted through the cooperation of the arc plates 11 and the compression springs 12, the resilience force of the compression springs 12 drives the insulating cylinder 10 to install the outer side of the post clamped by the arc plates 11, a wiring rod 13 is installed between the resistance testing device 9 and the arc plates 11, the wiring rod 13 is located in the gap between the two compression springs 12, the end part of the wiring rod is connected with the outer side of the arc plates 11, the side wall of the insulating cylinder 10 is provided with a positioning mechanism 14, and the positioning mechanism 14 is used for connecting the insulating cylinder 10 with the working box 7.
In this embodiment, the insulating cylinder 10 is made of teflon, the insulating cylinder 10 made of teflon has good insulating property and higher safety during operation, the junction rod 13 is made of copper, the arc plate 11 is made of copper, the conductivity of copper is good, and the test result of resistance is not affected.
The positioning mechanism 14 comprises a plurality of connecting plates 15 arranged in parallel, in the embodiment, the number of the connecting plates 15 is preferably three, the connecting plates 15 are fixedly connected with the outer side wall of the insulating cylinder 10, a connecting hole 16 is formed in the middle of each connecting plate 15, a connecting piece 17 is detachably connected to the working box 7, and the connecting piece 17 penetrates through the connecting hole 16 to position the insulating cylinder 10 and the working box 7.
Connecting piece 17 includes integrated into one piece's spliced pole 18 and mounting panel 19, 19 pin connections of mounting panel are on work box 7 surfaces, the diameter value of spliced pole 18 equals with the aperture value of connecting hole 16, the protruding 20 of lateral wall fixedly connected with of the other end of spliced pole 18, fixedly connected with extension board 21 on the work box 7, extension board 21 surface seted up with protruding 20 assorted slot 22, spliced pole 18 passes connecting hole 16 in three connecting plate 15 in proper order during the installation, and protruding 20 plays dual limiting displacement in inserting slot 22, the installation effectiveness is better.
The outer side of the rotating handle 6 is fixedly connected with a grip 23, which is convenient for a worker to hold the grip 23 with fingers to rotate the rotating handle 6.
The working principle of the invention is as follows: when the auxiliary device is used, the insulating cylinder 10 and the working box 7 are connected together firstly, namely part of the mounting plate 19 of the connecting piece 17 is pinned to the surface of the working box 7, part of the connecting column 18 of the connecting piece 17 sequentially passes through the connecting holes 16 in the three connecting plates 15, and the bulge 20 fixedly connected with the end part of the connecting column 18 is inserted into the slot 22 arranged on the side surface of the supporting plate 21 fixedly connected with the working box 7, then the proper height of the working box 7 is adjusted according to the horizontal height of the transformer, during specific adjustment, the rotating handle 6 is rotated clockwise or anticlockwise by holding the handle 23, the rotating shaft 24 is driven by the rotating handle 6 to synchronously rotate, the rotating shaft 24 drives the second bevel gear 5 to synchronously rotate, under the meshing action, second bevel gear 5 drives first bevel gear 4 synchronous revolution, screw rod 3 and then synchronous revolution, because dead lever 8 plays limiting displacement, the relative displacement takes place for work box 7 and rises or descends in vertical direction, the transformer of the multiple height of adaptation, improve work efficiency, install two arc boards 11 in the insulating cylinder 10, be connected through a plurality of compression spring 12 between arc board 11 and the inside wall of insulating cylinder 10, because different types of transformer high pressure side sleeve pipe terminal diameter is different, can adjust the clearance between two arc boards 11 through arc board 11 and compression spring 12 cooperation, and compression spring 12's resilience forces about the outside that insulating cylinder 10 installation back arc board 11 pressed from both sides tight terminal, further improve device application scope and practicality.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an auxiliary device is used in test of transformer high voltage side direct current resistance which characterized in that: the transformer high-voltage side bushing terminal comprises an insulating rod and a wiring kit which is detachably arranged on a wiring column of a transformer high-voltage side bushing;
the insulation device comprises an insulation rod, a spiral screw rod, a rotating shaft, a fixing rod and a resistance testing device, wherein the spiral screw rod is arranged inside the insulation rod, the upper middle part of the spiral screw rod penetrates through the insulation rod, the shell of the spiral screw rod is in threaded connection with the upper surface of the insulation rod, the lower end of the spiral screw rod is sleeved with a first bevel gear, the side wall of the insulation rod is provided with a through hole, the rotating shaft is rotatably connected with the through hole, one end, arranged inside the insulation rod, of the rotating shaft is provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, one end, arranged outside the insulation rod, of the rotating shaft is provided with a rotating handle, the upper end of the spiral screw rod is provided with a work box, the fixing rod is arranged between the work box and the insulation rod, the upper end of the fixing rod penetrates through the work box and is arranged inside the work box, the lower end of the fixing rod is fixedly connected with the insulation rod, and the surface of the work box is provided with the resistance testing device;
the wiring kit includes insulating barrel, the bottom opening side of insulating barrel is inserted on transformer high pressure side bushing terminal, be equipped with two arc boards in the insulating barrel, the arc board with connect through a plurality of compression spring between the inside wall of insulating barrel, resistance testing arrangement with be equipped with the binding post between the arc board, the lateral wall of insulating barrel is equipped with positioning mechanism, positioning mechanism is used for connecting between insulating barrel and the work box.
2. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 1, wherein: the positioning mechanism comprises a plurality of parallel connecting plates, the connecting plates are fixedly connected with the outer side wall of the insulating cylinder, connecting holes are formed in the middle of the connecting plates, connecting pieces are detachably connected to the working box, and the connecting pieces penetrate through the connecting holes.
3. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 2, wherein: the connecting piece includes integrated into one piece's spliced pole and mounting panel, the mounting panel pin connect in the work box surface, the diameter value of spliced pole with the aperture value of connecting hole equals, the lateral wall of the other end of spliced pole is equipped with the arch, fixedly connected with extension board on the work box, the extension board surface be equipped with protruding assorted slot.
4. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 2, wherein: the number of the connecting plates is three.
5. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 1, wherein: the insulating cylinder is made of polytetrafluoroethylene.
6. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 1, wherein: the material of junction pole is copper.
7. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 1, wherein: the arc plate is made of copper.
8. The auxiliary device for testing the direct current resistance of the high voltage side of the transformer according to claim 1, wherein: a handle is arranged on the outer side of the rotating handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120404.5A CN115586373A (en) | 2022-09-15 | 2022-09-15 | Auxiliary device for testing direct current resistance of high-voltage side of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120404.5A CN115586373A (en) | 2022-09-15 | 2022-09-15 | Auxiliary device for testing direct current resistance of high-voltage side of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115586373A true CN115586373A (en) | 2023-01-10 |
Family
ID=84777988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211120404.5A Pending CN115586373A (en) | 2022-09-15 | 2022-09-15 | Auxiliary device for testing direct current resistance of high-voltage side of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115586373A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117790141A (en) * | 2024-02-26 | 2024-03-29 | 扬州市银建电气有限公司 | Multifunctional voltage test transformer and control method thereof |
-
2022
- 2022-09-15 CN CN202211120404.5A patent/CN115586373A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117790141A (en) * | 2024-02-26 | 2024-03-29 | 扬州市银建电气有限公司 | Multifunctional voltage test transformer and control method thereof |
| CN117790141B (en) * | 2024-02-26 | 2024-05-03 | 扬州市银建电气有限公司 | Multifunctional transformer voltage test device and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115586373A (en) | Auxiliary device for testing direct current resistance of high-voltage side of transformer | |
| CN112540216A (en) | Multi-voltage-level electricity testing device for transformer substation | |
| CN202917661U (en) | Double-reed bayonet type grounding wire clamp | |
| CN211957955U (en) | Grounding wire clamp for bus bridge | |
| CN2802679Y (en) | Outdoor dry-type high-voltage current transformer | |
| CN207490308U (en) | A kind of solar power station lightning protection device | |
| CN208171767U (en) | A kind of 3D torsion testing machine | |
| CN206020468U (en) | Multi-contact overhead jointing clamp | |
| CN212459792U (en) | Experimental termination of multi-functional transformer of 110kV and above transformer suspension type | |
| CN214798757U (en) | Transformer substation wiring stabilizing device convenient to adjust | |
| CN207541103U (en) | A kind of current transformer tests auxiliary tool | |
| CN211032441U (en) | Fixing device for new energy automobile wire harness | |
| CN210142872U (en) | Power equipment overhauls device | |
| CN209215494U (en) | A kind of movable fixture for the test of multicolumn lightning arrester connected in parallel current distribution | |
| CN206710584U (en) | A kind of 10kV switch cabinet current transformers test fixture | |
| CN206311686U (en) | A kind of arrester detecting device | |
| CN214227323U (en) | High-altitude insulation remote control wire clamping device | |
| CN215087319U (en) | Test bench for electrical engineering | |
| CN219554032U (en) | Quick connector for ring main unit test | |
| CN218630068U (en) | High-voltage bushing for test | |
| CN220107214U (en) | Electrical complete cabinet convenient for wiring | |
| CN112526176A (en) | Transformer test wiring appurtenance | |
| CN112397291B (en) | Transformer low-voltage bushing drainage wire clamp | |
| CN220933020U (en) | Switch power frequency withstand voltage primary wiring device | |
| CN104917443B (en) | A kind of self-powered system of solar energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |