CN109030885A - Transformer high-voltage pile crown tests electrode and transformer - Google Patents
Transformer high-voltage pile crown tests electrode and transformer Download PDFInfo
- Publication number
- CN109030885A CN109030885A CN201810841455.4A CN201810841455A CN109030885A CN 109030885 A CN109030885 A CN 109030885A CN 201810841455 A CN201810841455 A CN 201810841455A CN 109030885 A CN109030885 A CN 109030885A
- Authority
- CN
- China
- Prior art keywords
- voltage pile
- transformer
- voltage
- line plate
- fixing piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R1/06—Measuring leads; Measuring probes
-
- 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
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
本发明提供一种变压器高压桩头测试电极及变压器，涉及电力配件领域，包括：测试杆和绝缘护套，测试杆的一端与高压桩头线板连接，另一端为自由端，自由端用于与电气试验测试仪器连接，高压桩头线板外和测试杆与高压桩头线板连接处外均设置有绝缘层；测试杆的自由端外套设有绝缘护套。在高压桩头线板的外部和测试杆与高压桩头线板连接处的外部均设置绝缘层，只露出测试杆的自由端，由于在测试时无需将高压桩头线板外缠绕的绝缘胶带取下，只需取下绝缘护套露出自由端，且测试后无需对高压桩头线板外进行动火绝缘化处理，只需在自由端上套设绝缘护套，因此，可以减少工作人员的劳动量、提高工作人员的工作效率，且降低了作业风险。
The invention provides a transformer high-voltage pile head test electrode and a transformer, which relate to the field of power accessories, including: a test rod and an insulating sheath, one end of the test rod is connected to a high-voltage pile head wire plate, and the other end is a free end, and the free end is used for It is connected with the electrical test instrument, and an insulating layer is provided on the outside of the high-voltage pile head line board and the connection between the test rod and the high-voltage pile head wire board; the free end of the test rod is provided with an insulating sheath. An insulating layer is provided outside the high-voltage pile head line plate and the outside of the connection between the test rod and the high-voltage pile head line plate, and only the free end of the test rod is exposed, because there is no need to wrap the insulating tape around the high-voltage pile head line plate during the test Take it off, just take off the insulating sheath to expose the free end, and after the test, there is no need to perform hot insulation treatment on the outside of the high-voltage pile head line plate, only need to set the insulating sheath on the free end, so the number of workers can be reduced The amount of labor, improve the efficiency of the staff, and reduce the risk of operation.
Description
Technical field
The present invention relates to electric power accessories fields, test electrode and transformer more particularly, to a kind of transformer high-voltage pile crown.
Background technique
Provide in 18 anti-accident measures of State Grid Corporation of China: transformer 35kv and outlet pile crown below need to use insulation
Adhesive tape carries out hermetically sealed insulating wrapped to realize the insulating processing to there is pile crown, to prevent transformer near region short trouble
Generation.
But transformer needs periodically to do the electrical tests such as D.C. resistance test, megger test test, in transformer
It needs to remove the insulating wrapped occurred on pile crown when electrical test is tested, the test clip of electrical test test equipment is clamped into high pressure
Pile crown line plate is to carry out electrical test test；Complete experimental test after again need handle work formality of getting angry, to high-voltage pile into
The hermetically sealed insulating wrapped of row, i.e., using insulating tape by the a-circle-by-a-circle winding of high-voltage pile, so that it is isolated from the outside, and right
Processing of getting angry is needed when high-voltage pile carries out hermetically sealed insulating wrapped.It is surveyed so that technical staff does regular electrical test to transformer
Larger workload, working efficiency are low when examination and processing of getting angry can generate certain security risk.
Summary of the invention
The purpose of the present invention is to provide a kind of transformer high-voltage pile crown test electrode and transformers, to solve the prior art
Middle staff to transformer do regular electrical test test when larger workload, working efficiency is low and operating risk is biggish
Problem.
The present invention provides a kind of transformer high-voltage pile crown test electrode, comprising: reference test bar and insulating sheath, the reference test bar
One end connect with high-voltage pile line plate, the other end is free end, the free end for being connect with electrical test test equipment,
Insulating layer is provided with outside the outer and described reference test bar of the high-voltage pile line plate and the high-voltage pile line plate junction；
The insulating sheath is arranged with outside the free end of the reference test bar.
Wherein, the reference test bar is provided with external screw thread far from one end of the free end, opens on the high-voltage pile line plate
Equipped with screw hole, the reference test bar wears the screw hole and is threadedly coupled with the high-voltage pile line plate；
The port of the insulating sheath is provided with the internal screw thread to match with the external screw thread.
Specifically, the transformer high-voltage pile crown test electrode further includes the first fixing piece, is opened on first fixing piece
Equipped with screw hole；
The high-voltage pile line plate is connected with drainage plate, and the drainage plate offers mounting hole, and the reference test bar is successively worn
If the screw hole and the mounting hole of the high-voltage pile line plate, and be threadedly coupled with first fixing piece, so that the high pressure
Pile crown line plate is fitted closely with the drainage plate.
Further, the transformer high-voltage pile crown test electrode further includes insulation tube, and the insulative pipe sleeve is set to described
Outside reference test bar, and one end of the insulation tube is threadedly coupled with the reference test bar, and is abutted with first fixing piece；
One end on the insulation tube far from first fixing piece is equipped with external screw thread, and the insulating sheath is provided with and institute
State the internal screw thread that the external screw thread of insulation tube matches.
Specifically, the reference test bar is provided with the second fixing piece, second fixing piece far from one end of the free end
It is connect with the reference test bar.
Further, first fixing piece, on second fixing piece close to the transformer high-voltage pile crown line plate
Side is respectively arranged with conductive layer.
Further, the conductive layer is the conductive paste being set on first fixing piece and second fixing piece.
Compared with the existing technology, transformer high-voltage pile crown test electrode provided by the invention has the advantage that
Transformer high-voltage pile crown provided by the invention tests electrode, periodically carries out D.C. resistance to transformer in technical staff
When the electrical tests such as test, megger test are tested, insulating sheath is removed from reference test bar, by electrical test test equipment
Test clip be clamped in the free end of reference test bar, since reference test bar is connect with high-voltage pile line plate, to realize that electrical test is surveyed
The connection of test instrument and high-voltage pile line plate, to carry out electrical test test to transformer.
It is respectively provided with insulating layer in the outside of the outside of high-voltage pile line plate and reference test bar and high-voltage pile line plate junction, i.e.,
Insulating tape is wound, the free end of reference test bar is only exposed, after completing electrical test test, insulating sheath is arranged outside free end,
To realize the hermetically sealed insulating wrapped for pile crown occur；When being tested using electrical test test equipment transformer, directly
It connects and removes insulating sheath, expose free end, the free end of electrical test test equipment and reference test bar is connected, to realize to change
The experimental test of depressor.Due to, without removing the insulating tape wound outside high-voltage pile line plate, need to only be removed absolutely in test
Edge sheath, and be not necessarily to only be arranged insulation on free end to insulating processing of getting angry is carried out outside high-voltage pile line plate after testing
Sheath, therefore, it is possible to reduce the amount of labour of staff, the working efficiency for improving staff, and reduce operating risk.
The present invention also provides a kind of transformer, the transformer includes transformer body, transformer high-voltage bushing, transformer
High-voltage pile line plate and above-mentioned transformer high-voltage pile crown test electrode, one end of the transformer high-voltage bushing and the transformer
Ontology connection, the other end connect with the transformer high-voltage pile crown line plate, the one end of the reference test bar far from the free end and
The transformer high-voltage pile crown line plate connection.
Possessed advantage is identical compared with the existing technology with above-mentioned transformer high-voltage pile crown test electrode for the transformer,
Details are not described herein.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that transformer high-voltage pile crown provided in an embodiment of the present invention tests electrode；
Fig. 2 is that transformer high-voltage pile crown provided in an embodiment of the present invention tests reference test bar and the connection of the first fixing piece in electrode
Structural schematic diagram；
Fig. 3 is the structural schematic diagram that transformer high-voltage pile crown provided in an embodiment of the present invention tests insulation tube in electrode；
Fig. 4 is the structural schematic diagram that transformer high-voltage pile crown provided in an embodiment of the present invention tests insulating sheath in electrode；
Fig. 5 is the structural schematic diagram of transformer provided in an embodiment of the present invention.
Appended drawing reference:
1- reference test bar；The second fixing piece of 11-；The free end 12-；The first fixing piece of 2-；3- insulation tube；4- insulation shield
Set；5- high-voltage pile line plate；51- insulating layer；6- drainage plate；7- transformer high-voltage bushing；8- transformer body.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside", "front", "rear" etc., indicated by orientation or positional relationship be it is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.This
Outside, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the structural schematic diagram that transformer high-voltage pile crown provided in an embodiment of the present invention tests electrode；Fig. 5 is the present invention
The structural schematic diagram for the transformer that embodiment provides.
As shown in Figure 1 and Figure 5, transformer high-voltage pile crown provided in this embodiment tests electrode, comprising: reference test bar 1 and absolutely
One end of edge sheath 4, reference test bar 1 is connect with high-voltage pile line plate 5, the other end be free end 12, free end 12 be used for it is electrical
Test instrument connects, and is provided with insulation outside high-voltage pile line plate 5 and outside reference test bar 1 and 5 junction of high-voltage pile line plate
Layer 51；Insulating sheath 4 is arranged with outside the free end 12 of reference test bar 1.
Compared with the existing technology, transformer high-voltage pile crown test electrode provided in this embodiment has the advantage that
Transformer high-voltage pile crown provided in this embodiment tests electrode, periodically carries out direct current to transformer in technical staff
When hindering the electrical tests such as test, megger test test, insulating sheath 4 is removed from reference test bar 1, electrical test is tested
The test clip of instrument is clamped in the free end 12 of reference test bar 1, since reference test bar 1 is connect with high-voltage pile line plate 5, to realize electricity
The connection of gas test instrument and high-voltage pile line plate 5, to carry out electrical test test to transformer.
Insulating layer is respectively provided in the outside of the outside of high-voltage pile line plate 5 and reference test bar 1 and 5 junction of high-voltage pile line plate
51, i.e. winding insulating tape, only expose the free end 12 of reference test bar 1, after completing electrical test test, are arranged outside free end 12
There is the hermetically sealed insulating wrapped of pile crown to realize in insulating sheath 4；Transformer is being carried out using electrical test test equipment
When test, directly insulating sheath 4 is removed, exposes free end 12, by the free end 12 of electrical test test equipment and reference test bar 1
Connection, to realize the experimental test to transformer.Due to the insulating tape in test without will be wound outside high-voltage pile line plate 5
It removes, only need to remove insulating sheath 4, and without to insulating processing of getting angry is carried out outside high-voltage pile line plate 5 after testing, it only need to be
It is arranged insulating sheath 4 on free end 12, therefore, the amount of labour of staff can be saved, improve the working efficiency of staff,
And reduce operating risk.
Fig. 2 is that transformer high-voltage pile crown provided in an embodiment of the present invention tests reference test bar and the connection of the first fixing piece in electrode
Structural schematic diagram；Fig. 4 is that the structure of insulating sheath in transformer high-voltage pile crown provided in an embodiment of the present invention test electrode is shown
It is intended to.
Wherein, in order to enable reference test bar 1 firmly to connect with high-voltage pile line plate 5, insulating sheath 4, and facilitate insulation
Sheath 4 is removed from reference test bar 1, to expose free end 12, facilitates reference test bar 1 to connect with electrical test test equipment, this implementation
In the transformer high-voltage pile crown test electrode that example provides, as shown in Fig. 2 and Fig. 4-5, the one end of reference test bar 1 far from free end 12
It is provided with external screw thread, screw hole is offered on high-voltage pile line plate 5, reference test bar 1 wears screw hole and 5 screw thread of high-voltage pile line plate connects
It connects；The port of insulating sheath 4 is provided with the internal screw thread to match with external screw thread.
It is connected through a screw thread between reference test bar 1 and high-voltage pile line plate 5, also by spiral shell between insulating sheath 4 and reference test bar 1
Line connection, to make reference test bar 1 can firmly connect with high-voltage pile line plate 5, insulating sheath 4, and can be in order to exhausted
Edge sheath 4 is removed and is installed from reference test bar 1.
Insulating tape is wound outside one end and high-voltage pile line plate 5 by reference test bar 1 far from free end 12, only exposes test
The free end 12 of bar 1；It is arranged insulating sheath 4 outside free end 12, so that reference test bar 1 and high-voltage pile line plate 5 is hermetically sealed
Insulating processing；When carrying out electric test to transformer, it is only necessary to screw off insulating sheath 4 from free end 12, in this way, with existing
There is technology to compare, a large amount of time and the amount of labour can be saved, to improve working efficiency, the labour for mitigating staff is strong
Degree.
Specifically, in order to which high-voltage pile line plate 5 firmly to be connect with drainage plate 6, to realize preferably power transmission, this reality
It applies in the transformer high-voltage pile crown test electrode of example offer, as shown in Figure 1 and Figure 5, transformer high-voltage pile crown test electrode also wraps
The first fixing piece 2 is included, offers screw hole on the first fixing piece 2；High-voltage pile line plate 5 is connected with drainage plate 6, and drainage plate 6 opens up
There is mounting hole, reference test bar 1 successively wears the screw hole and mounting hole of high-voltage pile line plate 5, and is threadedly coupled with the first fixing piece 2,
So that high-voltage pile line plate 5 is fitted closely with drainage plate 6.
First fixing piece 2 can be nut.
First fixing piece 2 is arranged on reference test bar 1, between drainage plate 6 and free end 12, passes through reference test bar 1 and height
Lamination shoe line plate 5, the first fixing piece 2 are threadedly coupled respectively, drainage plate 6 are squeezed to 5 direction of high-voltage pile line plate, until drawing
It is fitted closely between flowing plate 6 and high-voltage pile line plate 5, is connected with drainage thread on drainage plate 6, so that the electric current by transformer is preferable
Ground transfers out.
Fig. 3 is the structural schematic diagram that transformer high-voltage pile crown provided in an embodiment of the present invention tests insulation tube in electrode.
Further, in order to further increase the quality that the hermetically sealed insulating of transformer high-voltage pile crown is handled, to prevent from becoming
The generation of depressor near region short trouble, transformer high-voltage pile crown provided in this embodiment are tested in electrode, as shown in Figure 1-3, become
It further includes insulation tube 3 that depressor high-voltage pile, which tests electrode, and insulation tube 3 is sheathed on outside reference test bar 1, and one end of insulation tube 3 and survey
Bar 1 is threadedly coupled, and is abutted with the first fixing piece 2；One end on insulation tube 3 far from the first fixing piece 2 is equipped with external screw thread, absolutely
Edge sheath 4 is provided with the internal screw thread to match with the external screw thread of insulation tube 3.
The internal screw thread that insulation tube 3 matches close to the setting of one end of the first fixing piece 2 with the external screw thread on reference test bar 1, with
Make to be threadedly coupled between insulation tube 3 and reference test bar 1, is not only convenient for dismantling, and connective stability is preferable.
It will connect outside high-voltage pile line plate 5, outside reference test bar 1 and high-voltage pile junction with insulation tube 3 with reference test bar 1
Outside wind insulating tape, insulating sheath 4 is connect with insulation tube 3 far from the threaded one end of the first fixing piece 2, can be true
Protect one end far from free end 12 of transformer high-voltage pile crown line plate 5, reference test bar 1, the first fixing piece 2 is all coated by insulating tape
Come, the free end 12 of reference test bar 1 is got up by the cladding of insulating sheath 4, to further increase hermetically sealed to transformer high-voltage pile crown
The quality of insulating processing.
Further, ground stability is connect to further increase high-voltage pile line plate 5 with drainage plate 6, thus realize compared with
Power transmission well, transformer high-voltage pile crown provided in this embodiment are tested in electrode, and as shown in Figure 1 and Figure 5, reference test bar 1 is far from certainly
Second fixing piece 11 is provided with by the one end at end 12, the second fixing piece 11 is connect with reference test bar 1.
Second fixing piece 11 can be integrally formed with reference test bar 1, the modes such as can also take welding, be bonded, be spirally connected connect.
The second fixing piece 11 will be connected close to one end of high-voltage pile line plate 5 on reference test bar 1, it is close on reference test bar 1 to draw
One end of flowing plate 6 connects the first fixed frame, so that the first fixing piece 2, the second fixing piece 11 are by high-voltage pile line plate 5 and drainage plate
6 clip together, and by rotating the first fixing piece 2, make the first fixing piece 2 close to drainage plate 6, to drive drainage plate 6 and high piling
Head line plate 5 fits closely, so that the electric current of transformer preferably be transferred out.
Further, in order to reduce the contact resistance between high-voltage pile line plate 5 and the second fixing piece 11 as much as possible, draw
Contact resistance between flowing plate 6 and the first fixing piece 2, so that it is guaranteed that the accuracy of the electrical test test data to transformer,
In transformer high-voltage pile crown test electrode provided in this embodiment, as shown in Figure 1 and Figure 5, the first fixing piece 2, the second fixing piece
Side on 11 close to transformer high-voltage pile crown line plate 5 is respectively arranged with conductive layer.
By on the first fixing piece 2 and the second fixing piece 11, close to the side of transformer high-voltage pile crown line plate 5, setting is led
Electric layer can be eliminated due to the first fixing piece 2, the second fixing piece 11 and high-voltage pile line plate 5 contact resistances are excessive asks
Topic, so that it is guaranteed that the accuracy of the electrical test test data to transformer.
Specifically, in order to reduce as much as possible the contact resistance between high-voltage pile line plate 5 and the second fixing piece 11, drainage
Contact resistance between plate 6 and the first fixing piece 2, so that it is guaranteed that the accuracy of the electrical test test data to transformer, leads
Electric layer is the conductive paste being set on the first fixing piece 2 and the second fixing piece 11, and conductive paste is in the first fixing piece 2, second
Close to the one side of high-voltage pile line plate 5 on fixing piece 11.
Further, in order to ensure quality that the high-voltage pile line plate 5 to transformer carries out hermetically sealed insulating processing
While, it also can be when periodically being tested transformer using electrical test test equipment, staff will be without that will wind
Insulating tape on high-voltage pile disassembles round and round, to make that the workload of staff is smaller, working efficiency
It is higher, and operating risk is smaller, transformer may include transformer body 8, transformer high-voltage bushing 7, transformer high-voltage pile crown
Line plate 5 and transformer high-voltage pile crown provided by the above embodiment test electrode, one end of transformer high-voltage bushing 7 and transformer sheet
Body 8 connects, and the other end is connect with transformer high-voltage pile crown line plate 5, reference test bar 1 one end and transformer high-voltage far from free end 12
Pile crown line plate 5 connects.
Insulating layer is respectively provided in the outside of the outside of high-voltage pile line plate 5 and reference test bar 1 and 5 junction of high-voltage pile line plate
51, i.e. winding insulating tape, only expose the free end 12 of reference test bar 1, after completing electrical test test, are arranged outside free end 12
There is the hermetically sealed insulating wrapped of pile crown to realize in insulating sheath 4；Transformer is being carried out using electrical test test equipment
When test, directly insulating sheath 4 is removed, exposes free end 12, by the free end 12 of electrical test test equipment and reference test bar 1
Connection, to realize the experimental test to transformer.
Due to, without removing the insulating tape wound outside high-voltage pile line plate 5, need to only remove insulating sheath in test
4, and be not necessarily to only be arranged insulation on free end 12 to insulating processing of getting angry is carried out outside high-voltage pile line plate 5 and protect after testing
Therefore set 4 can save the amount of labour of staff, improve the working efficiency of staff, and reduce operating risk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of transformer high-voltage pile crown tests electrode characterized by comprising reference test bar and insulating sheath, the reference test bar
One end connect with high-voltage pile line plate, the other end is free end, the free end for being connect with electrical test test equipment,
Insulating layer is provided with outside the outer and described reference test bar of the high-voltage pile line plate and the high-voltage pile line plate junction；
The insulating sheath is arranged with outside the free end of the reference test bar.
2. transformer high-voltage pile crown according to claim 1 tests electrode, which is characterized in that the reference test bar is far from described
One end of free end is provided with external screw thread, and screw hole is offered on the high-voltage pile line plate, and the reference test bar wears the screw hole
It is threadedly coupled with the high-voltage pile line plate；
The port of the insulating sheath is provided with the internal screw thread to match with the external screw thread.
3. transformer high-voltage pile crown according to claim 1 tests electrode, which is characterized in that it further include the first fixing piece,
Screw hole is offered on first fixing piece；
The high-voltage pile line plate is connected with drainage plate, and the drainage plate offers mounting hole, and the reference test bar successively wears institute
The screw hole and the mounting hole of high-voltage pile line plate are stated, and is threadedly coupled with first fixing piece, so that the high-voltage pile
Line plate is fitted closely with the drainage plate.
4. transformer high-voltage pile crown according to claim 3 tests electrode, which is characterized in that it further include insulation tube, it is described
Insulative pipe sleeve is set to outside the reference test bar, and one end of the insulation tube is threadedly coupled with the reference test bar, and with described first
Fixing piece abuts；
On the insulation tube far from first fixing piece one end be equipped with external screw thread, the insulating sheath be provided with it is described absolutely
The internal screw thread that the external screw thread of edge pipe matches.
5. transformer high-voltage pile crown according to claim 3 tests electrode, which is characterized in that the reference test bar is far from described
One end of free end is provided with the second fixing piece, and second fixing piece is connect with the reference test bar.
6. transformer high-voltage pile crown according to claim 5 tests electrode, which is characterized in that first fixing piece, institute
It states the side on the second fixing piece close to the transformer high-voltage pile crown line plate and is respectively arranged with conductive layer.
7. transformer high-voltage pile crown according to claim 6 tests electrode, which is characterized in that the conductive layer is to be set to
Conductive paste on first fixing piece and second fixing piece.
8. a kind of transformer, which is characterized in that including transformer body, transformer high-voltage bushing, transformer high-voltage pile crown line plate
Test electrodes with the described in any item transformer high-voltage pile crowns of such as claim 1-7, one end of the transformer high-voltage bushing with
The transformer body connection, the other end are connect with the transformer high-voltage pile crown line plate, and the reference test bar is far from the freedom
The one end at end is connect with the transformer high-voltage pile crown line plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841455.4A CN109030885B (en) | 2018-07-26 | 2018-07-26 | Transformer high voltage pile test electrode and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841455.4A CN109030885B (en) | 2018-07-26 | 2018-07-26 | Transformer high voltage pile test electrode and transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109030885A true CN109030885A (en) | 2018-12-18 |
| CN109030885B CN109030885B (en) | 2024-05-03 |
Family
ID=64646016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810841455.4A Active CN109030885B (en) | 2018-07-26 | 2018-07-26 | Transformer high voltage pile test electrode and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109030885B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11335498B2 (en) | 2018-02-15 | 2022-05-17 | Hitachi Energy Switzerland Ag | Insulation of non-liquid immersed transformers |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216161A (en) * | 2007-03-07 | 2008-09-18 | Tokyo Electric Power Co Inc:The | High voltage terminal block for substation test |
| CN204270821U (en) * | 2014-12-16 | 2015-04-15 | 天津天保电力有限公司 | A 35kV Transformer High Voltage Bushing Lead Wire Structure |
| CN204375549U (en) * | 2014-12-30 | 2015-06-03 | 国家电网公司 | The transformer high-voltage bushing of water proof and dust proof |
| CN204925181U (en) * | 2015-09-21 | 2015-12-30 | 国网江西省电力公司南昌供电分公司 | T type cable head convenient to high -voltage testing |
| CN107947101A (en) * | 2017-11-29 | 2018-04-20 | 国家电网公司 | Elbow-type cable terminal extension rod |
| CN208476977U (en) * | 2018-07-26 | 2019-02-05 | 国网青海省电力公司海东供电公司 | Transformer high voltage pile head test electrode and transformer |
-
2018
- 2018-07-26 CN CN201810841455.4A patent/CN109030885B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216161A (en) * | 2007-03-07 | 2008-09-18 | Tokyo Electric Power Co Inc:The | High voltage terminal block for substation test |
| CN204270821U (en) * | 2014-12-16 | 2015-04-15 | 天津天保电力有限公司 | A 35kV Transformer High Voltage Bushing Lead Wire Structure |
| CN204375549U (en) * | 2014-12-30 | 2015-06-03 | 国家电网公司 | The transformer high-voltage bushing of water proof and dust proof |
| CN204925181U (en) * | 2015-09-21 | 2015-12-30 | 国网江西省电力公司南昌供电分公司 | T type cable head convenient to high -voltage testing |
| CN107947101A (en) * | 2017-11-29 | 2018-04-20 | 国家电网公司 | Elbow-type cable terminal extension rod |
| CN208476977U (en) * | 2018-07-26 | 2019-02-05 | 国网青海省电力公司海东供电公司 | Transformer high voltage pile head test electrode and transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11335498B2 (en) | 2018-02-15 | 2022-05-17 | Hitachi Energy Switzerland Ag | Insulation of non-liquid immersed transformers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109030885B (en) | 2024-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204116460U (en) | A kind of measuring system being applicable to insulating material high field conduction characteristic | |
| CN104485198B (en) | Air reactor and air reactor current measuring method | |
| CN104965111A (en) | Power transmission and distribution line voltage on-line measurement system based on pincerlike coaxial capacitor | |
| CN214374977U (en) | Telescopic generator shaft voltage measuring device | |
| CN204422659U (en) | A kind of grounding net of transformer substation Transient grounding resistance and the automatic test diagnosis equipment of response | |
| CN202975127U (en) | Portable safe high-voltage electroscope | |
| CN208476977U (en) | Transformer high voltage pile head test electrode and transformer | |
| CN109030885A (en) | Transformer high-voltage pile crown tests electrode and transformer | |
| CN202512203U (en) | Cable testing discharge wiring device | |
| CN103399192A (en) | Split type zero flux small electric current sensor for on-line monitoring and charged test of capacitive equipment | |
| CN109959805A (en) | A multi-function switching device for live test of arrester | |
| CN109061370A (en) | A kind of substation grounding continuity test two pointer type touch operation bar | |
| CN202994856U (en) | General test cable used for transformer test | |
| CN207798889U (en) | A kind of clamped-in style cable voltage experiment quick coupling | |
| CN202749204U (en) | Shrapnel type extractor device of high-voltage bushing end screen | |
| CN204595062U (en) | A kind of electric line voltage on-line measurement system based on pincerlike coaxial capacitance | |
| CN206892250U (en) | A kind of on-line checking pulse cable fault test system | |
| CN209387805U (en) | A kind of high-voltage cable joint resistance test equipment | |
| CN206003876U (en) | battery connection strip | |
| CN104407180B (en) | Special wire clamp for performing charged test on lightning arrester | |
| CN204595063U (en) | A kind of electrical circuit inspection and contact electroscope | |
| CN211603420U (en) | Lightning arrester live-line test current shielding device | |
| CN103308744B (en) | High-tension cable gauze screen ground wire leakage current detector | |
| CN206411148U (en) | An insulated probe | |
| CN204188660U (en) | Lightning arrester live-line test Special wire-clip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |