CN107424730B - A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function - Google Patents
A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function Download PDFInfo
- Publication number
- CN107424730B CN107424730B CN201710635940.1A CN201710635940A CN107424730B CN 107424730 B CN107424730 B CN 107424730B CN 201710635940 A CN201710635940 A CN 201710635940A CN 107424730 B CN107424730 B CN 107424730B
- Authority
- CN
- China
- Prior art keywords
- led light
- earthing
- metal shell
- flapper
- metal
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000009510 drug design Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- H01F27/02—Casings
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a kind of Transformer Bushing Tap earthing or grounding means with earthing detection function, its technical characteristics is: being equipped with fixed baffle in the inner wall lower end of metal shell, flapper is installed in the upper end of fixed baffle, the flapper is round and is from outside to inside respectively metal ring, insulate annulus and metal disk, the metal disk is connected with metal shell inner cavity top by a spring, LED light and button cell are installed in the insulation tank that the upper end of metal shell is equipped with, one electrode of the LED light is connected directly with metal shell, another electrode of the LED light is connected with the anode of button cell, the cathode of the button cell is connected by the conducting wire of a band insulated hull with the metal ring on the outside of flapper.The present invention has rational design, and testing crew can be helped to check whether earthing or grounding means installs correct, ground connection well, transformer station high-voltage side bus risk is effectively reduced, ensure that the safe operation of equipment.
Description
Technical field
The invention belongs to transformer technology field, especially a kind of Transformer Bushing Tap with earthing detection function is connect
Ground device.
Background technique
Bushing shell for transformer is the primary insulation device of transformer lead and shell, and 66kV and above casing are most
For condenser-type terminal, a measurement terminal is drawn in the outermost layer capacitance screen of capacitance of bushing fuse, for measuring condenser-type terminal
Dielectric dissipation factor and capacitance, which is commonly referred to as bottom shielding of bushing.In order to guarantee to be safely operated, run in casing
End shield must be grounded when electrification.Currently used bottom shielding of bushing earthing or grounding means is a kind of metal nut cap, by being screwed at knot
On the flange of bottom, make to be connected between end shield binding post and ground connection flange by nut cap itself, the effect being grounded.
In actual operation, often occur or due to the thread damage of nut cap, causing due to forgetting to tighten nut cap after test
End shield does not have reliable ground when casing charges, and brings hidden danger to transformer station high-voltage side bus.End shield position belongs to when due to transformer station high-voltage side bus
Danger zone, when suspecting end shield imperfect earth, operation maintenance personnel can not be checked closely, can only be done again until transformer has a power failure
Processing.
Patent document " a kind of transformer end shield ground detection device (Publication No. CN202583336U) " provides one kind
The end shield earthing or grounding means of end shield binding post and casing nut cap contact situation macroscopic.But the device needs operation maintenance personnel in end shield
It is checked immediately after nut cap is fixed, is still difficult to avoid that and forgets the case where tightening；And can only ensure state at that time, it can not observe
End shield Grounding in the case of follow-up operation.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of designs rationally, safe and reliable and user
Just the Transformer Bushing Tap earthing or grounding means with earthing detection function.
The present invention solves its technical problem and adopts the following technical solutions to achieve:
A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function, including metal shell, in metal shell
Inner wall lower end be equipped with fixed baffle, screw thread is formed on the metal shell inner wall of fixed baffle lower end for drawing with end shield
Ground connection flange matches, and is equipped with flapper in the upper end of fixed baffle, which is round and distinguishes from outside to inside
It is connected with metal shell inner cavity top by a spring for metal ring, insulation annulus and metal disk, the metal disk,
The upper-center of metal shell is equipped with insulation tank, LED light and button cell is equipped in insulation tank, which is inlaid in absolutely
The upper end of edge slot, the button cell are mounted on LED light bottom and are connected with LED light；An electrode and metal-back for the LED light
Body is connected directly, and another electrode of the LED light is connected with the anode of button cell, and the cathode of the button cell passes through one
Conducting wire with insulated hull is connected with the metal ring on the outside of flapper；
It with the metal disk in flapper is to be electrically connected that the fixed baffle, which is electric conductor and fixed baffle, when will connect
For ground device when rotation is tightened on end shield ground connection flange, end shield binding post boosts flapper.
The metal shell is hollow bell shape structure.
The LED light and button cell are embedded integral structure, and the connection between LED light and button cell is using direct
It connects, or is connected by spring leaf.
The advantages and positive effects of the present invention are:
1, the present invention joined Grounding measure loop, when earthing or grounding means is removed on the basis of traditional end shield nut cap
Or when fixed bad, warning light is lighted at the top of device, illustrates that bottom shielding of bushing does not have reliable ground；When earthing or grounding means is fixed well
When, device top warning light extinguishes, and illustrates bottom shielding of bushing reliable ground, to realize confirmation bottom shielding of bushing ground connection on the spot
The purpose of situation improves convenience and the safety of bushing shell for transformer operation and maintenance, effectively reduces transformer station high-voltage side bus risk.
2, the present invention realizes the real-time prompting function of Grounding: eye-catching LED light is installed at the top of device can remind examination
It tests after personnel test end shield and fastens the earthing or grounding means.
3, the present invention can help testing crew to check whether earthing or grounding means installs correct, ground connection well, ensure that equipment
Safe operation.
4, the present invention can help operation maintenance personnel to connect in tour position observation end shield during transformer long-play
Whether ground is good, and the case where imperfect earth once occurs, operation maintenance personnel can be made to find in time.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention (cross-sectional view)；
Fig. 2 is the bottom view of Fig. 1；
Fig. 3 is the equivalent circuit diagram of Transformer Bushing Tap earthing or grounding means；
Fig. 4 is the state diagram that the present invention is buckled on end shield binding post.
Specific embodiment
The embodiment of the present invention is further described below in conjunction with attached drawing:
A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function, as shown in Figures 1 and 2, including metal
Shell 2, the metal shell are hollow bell shape structure, fixed baffle 5 are formed in the lower end of metal shell, under fixed baffle
It is formed with screw thread 4 on the metal shell inner wall at end, the ground connection flange for drawing with end shield matches, and pacifies in the upper end of fixed baffle
Equipped with flapper 6, which is round and is from outside to inside respectively metal ring 10, insulation annulus 11 and metal disk
12, which is connected with metal shell inner cavity top by a spring 7, and the spring is when in a compressed state, and presentation is stretched
Tension withstands on flapper on fixed baffle, on the one hand fixed baffle plays position-limiting action, on the one hand connects with flapper composition
Ground measure loop.It is equipped with insulation tank 1 in the upper-center of metal shell 1, LED light 9 and button cell are installed in insulation tank
8, which is inlaid in the upper end of insulation tank, which is mounted on LED light bottom and is connected with LED light.The LED light
Using direct current supply, one electrode is connected directly with metal shell, the anode of another electrode connection button cell, the button
The cathode of battery is connected by the conducting wire 3 of a band insulated hull with the metal ring on the outside of flapper.
The equivalent circuit of the present apparatus as shown in figure 3, end shield binding post by switch S1 connecting spring, the spring with outside metal
Shell and an electrode of LED light are connected, metal shell by switch S2 connection transformer case (ground potential), LED light it is another
Electrode passes through button cell, the conducting wire with insulated hull, switch S3 connection transformer case (ground potential).
The operation principle of the present invention is that: Fig. 1 illustrates the situation that earthing or grounding means is not buckled on end shield binding post, at this time
The circuit LED is lighted by insulated conductor, flapper, fixed baffle, the conducting of earthing or grounding means metal shell, LED light, prompts O&M
Personnel's end shield is not grounded, and in this state, S1, S2 are opened in Fig. 3, S3 closure.Fig. 4, which illustrates earthing or grounding means and is buckled in end shield, to be connect
Earthing or grounding means is rotated on end shield ground connection flange and is tightened by the situation on terminal, and end shield binding post boosts flapper, spring
Shrink, expansion force guarantee flapper and end shield binding post reliable contacts, end shield binding post pass through flapper, spring,
Metal shell, screw thread and ground connection flange are together with end shield reliable ground.At the same time, flapper is separated with fixed baffle, LED
Circuit disconnects, and LED light is extinguished, and prompts operation maintenance personnel end shield reliable ground, and in this state, S1, S2 are closed in Fig. 3, and S3 is opened.
Shape and inner cavity of the invention can do appropriate circular arc chamfering according to usage scenario, the circle gold among flapper
Appropriate indent can be done according to the shape of binding post by belonging to piece and end shield binding post contact portion, more be sticked on so that the two be made to combine
It closes.
In order to ensure reliability, button cell and LED light be using non-removable embedded, and connection between the two can be with
It directly connects, can also guarantee that connection is reliable by spring leaf.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention
Include and be not limited to embodiment described in specific embodiment, it is all by those skilled in the art according to the technique and scheme of the present invention
The other embodiments obtained, also belong to the scope of protection of the invention.
Claims (3)
1. a kind of Transformer Bushing Tap earthing or grounding means with earthing detection function, including metal shell, it is characterised in that:
The inner wall lower end of metal shell is equipped with fixed baffle, and screw thread is formed on the metal shell inner wall of fixed baffle lower end and is used for and end
The ground connection flange that screen is drawn matches, and is equipped with flapper in the upper end of fixed baffle, which is round and by outer
To interior respectively metal ring, insulation annulus and metal disk, the metal disk and metal shell inner cavity top pass through a bullet
Spring is connected, and is equipped with insulation tank in the upper-center of metal shell, LED light and button cell is equipped in insulation tank, the LED light
It is inlaid in the upper end of insulation tank, which is mounted on LED light bottom and is connected with LED light；One electrode of the LED light
It is connected directly with metal shell, another electrode of the LED light is connected with the anode of button cell, the cathode of the button cell
It is connected by the conducting wire of a band insulated hull with the metal ring on the outside of flapper；
It with the metal disk in flapper is to be electrically connected that the fixed baffle, which is electric conductor and fixed baffle, when will be grounded dress
It sets when rotation is tightened on end shield ground connection flange, end shield binding post boosts flapper.
2. a kind of Transformer Bushing Tap earthing or grounding means with earthing detection function according to claim 1, feature
Be: the metal shell is hollow bell shape structure.
3. a kind of Transformer Bushing Tap earthing or grounding means with earthing detection function according to claim 1 or 2, special
Sign is: the LED light and button cell are embedded integral structure, and the connection between LED light and button cell is using direct
It connects, or is connected by spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635940.1A CN107424730B (en) | 2017-07-31 | 2017-07-31 | A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710635940.1A CN107424730B (en) | 2017-07-31 | 2017-07-31 | A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107424730A CN107424730A (en) | 2017-12-01 |
| CN107424730B true CN107424730B (en) | 2019-02-22 |
Family
ID=60431736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710635940.1A Active CN107424730B (en) | 2017-07-31 | 2017-07-31 | A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107424730B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398660A (en) * | 2019-08-01 | 2019-11-01 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
| CN112600112B (en) * | 2020-12-14 | 2022-11-22 | 国网山东省电力公司烟台供电公司 | Special tool for grounding and opening FRB type end screen of capacitive bushing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485136A (en) * | 1992-09-17 | 1996-01-16 | Cooper Industries, Inc. | Load break disconnecting device with solid arc suppression means |
| US5663859A (en) * | 1996-04-16 | 1997-09-02 | Cooper Industries, Inc. | Disconnector switch for disconnecting a high-voltage arrester from ground |
| CN201508759U (en) * | 2009-05-19 | 2010-06-16 | 成都市金能源电力实业有限公司 | Bushing tap grounding device of generator transformer |
| CN201717081U (en) * | 2010-06-04 | 2011-01-19 | 中国西电电气股份有限公司 | Dry type DC transformer bushing for intelligent on-line monitoring |
| CN201717082U (en) * | 2010-06-07 | 2011-01-19 | 中国西电电气股份有限公司 | Intelligent online monitoring oil-impregnated paper condenser type transformer bushing |
| CN202600100U (en) * | 2012-03-16 | 2012-12-12 | 甘肃电力科学研究院 | On-line monitoring device of high-voltage transformer bushing tap grounding |
| CN205751818U (en) * | 2016-06-30 | 2016-11-30 | 李永钰 | Two ends terminals minor composite capacitance-type dry-type transformer sleeve pipe |
| CN106841869A (en) * | 2017-02-13 | 2017-06-13 | 河北智恒电力科技有限公司 | Bushing sensor and its test method |
-
2017
- 2017-07-31 CN CN201710635940.1A patent/CN107424730B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107424730A (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107424730B (en) | A kind of Transformer Bushing Tap earthing or grounding means with earthing detection function | |
| CN207851140U (en) | Integrated DC electroscope | |
| CN102033154A (en) | End shield current sampling device suitable for insulated online monitoring system of high-voltage capacitor bushing | |
| CN205609314U (en) | Dry -type transformer sleeve pipe end screen extraction device | |
| CN205140672U (en) | Transformer high -tension bushing tap grounding device | |
| CN202736681U (en) | Transformer high-tension bushing tap grounding device | |
| CN106816286A (en) | Terminal assemblies of a kind of voltage transformer high-voltage connection structure and voltage transformer | |
| CN205679729U (en) | A kind of insulation test device | |
| CN202840157U (en) | Tap adapter | |
| CN207282295U (en) | Transformer Bushing Tap earthing or grounding means with state-indicating function | |
| CN206742141U (en) | A kind of insulating base and vacuum load switch fuse combined electrical apparatus | |
| CN108226614A (en) | A kind of high voltage power transmission acousto-optic electricity tester | |
| CN210626636U (en) | High-tension bushing tap grounding on-line monitoring device | |
| CN211478620U (en) | Sleeve pipe end screen fault indication device | |
| CN205508891U (en) | Battery and battery block structure thereof | |
| CN203232060U (en) | Insulation rod test wire connector | |
| CN210604932U (en) | High-tension bushing end screen ground connection detection device | |
| CN206712437U (en) | A kind of cable branch box | |
| CN208538788U (en) | A kind of integration enclosed type expulsion fuse | |
| CN208315368U (en) | 10 kv transformer platform primary side Rapid grounding devices | |
| CN206684218U (en) | A kind of multifunctional high pressure electroscope | |
| CN206788268U (en) | A kind of electric vehicle high-voltage system detection means | |
| CN104020325A (en) | High-voltage test shielding cover for 10kV ring main unit | |
| CN106546785A (en) | Electric energy meter secondary voltage line safeguard protection attachment means | |
| CN204858332U (en) | PZ block terminal |
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 |