CN206710490U - One kind on-line monitoring intelligent voltage transformer - Google Patents
One kind on-line monitoring intelligent voltage transformer Download PDFInfo
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- CN206710490U CN206710490U CN201720489642.1U CN201720489642U CN206710490U CN 206710490 U CN206710490 U CN 206710490U CN 201720489642 U CN201720489642 U CN 201720489642U CN 206710490 U CN206710490 U CN 206710490U
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- voltage transformer
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Abstract
The utility model discloses one kind to monitor intelligent voltage transformer on-line, and combination sensor is arranged in secondary terminal box.The fuel tank lower end of voltage transformer body is provided with casing, and terminal board, dielectric loss sensor and protection device are provided with casing, and combination sensor and dielectric loss sensor communicate to connect with end shield.Combination sensor and dielectric loss sensor and voltage transformer integrated setting, combination sensor coordinates the partial discharge test and dielectric loss test realized to voltage transformer with dielectric loss sensor, the part of combination sensor and dielectric loss sensor as voltage transformer, provide the hardware condition to the shelf depreciation of voltage transformer and the live testing of dielectric loss, so as to play a part of that convenient in charge process shelf depreciation and dielectric loss can be detected, make the live testing of current transformer convenient, it is safe and accurate, transformer power supply need not be disconnected, so as to also just reduce the economic loss brought due to power failure.
Description
Technical field
Electrical equipment technical field is the utility model is related to, more particularly to a kind of on-line monitoring intelligent voltage transformer.
Background technology
The voltage transformer of operation is tested when not having a power failure to realize test, using with compared with method as the electricity of principle
Appearance type transformer equipment live measuring technology and the powered Partial Discharge Detecting Technology of high-frequency method transformer are completing simulation examination
Test and start, in power network pilot conversion, to obtain certain effect after verifying work, but fail to be widely applied, its reason is above-mentioned
It is above-mentioned, it is necessary to access the detection devices such as dielectric loss sensor, partial discharge detection instrument or ultrahigh frequency partial discharge detector when equipment live is tested
The installation of detection device needs to have a power failure, and brings inconvenience to installation, and bring certain economic loss.In addition, existing
Terminal box installation or sensor access are carried out in equipment can influence equipment dependability, cause potential potential safety hazard,
Therefore, how to solve the problems, such as to need power failure and integrity problem when detection device accesses current transformer, into
For those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
Based on this, the utility model is necessary to provide a kind of on-line monitoring intelligent voltage transformer, to solve detection device
The problem of needing to have a power failure when accessing voltage transformer.
Its technical scheme is as follows：
One kind on-line monitoring intelligent voltage transformer, including：
Voltage transformer body；
Combination sensor, the combination sensor are arranged in the secondary terminal box of the voltage transformer, the combination
Sensor includes high frequency partial discharge sensor and superfrequency partial discharge sensor, the combination sensor and the voltage transformer body
End shield communicated to connect by end shield terminal board；
It is arranged on the casing of the fuel tank lower end of the voltage transformer；
The terminal board being arranged in the casing, the terminal board is from casing towards casing doorway；
Dielectric loss sensor on the terminal board is arranged on, the dielectric loss sensor communicates to connect with the end shield；
It is arranged on the protection device for being used to control the end shield to convey signal to the dielectric loss sensor on the terminal board；
It is arranged on the ground terminal of the fuel tank bottom.
In one of the embodiments, in above-mentioned on-line monitoring intelligent voltage transformer, the protection device includes：Knife
Lock and the short circuit piece being connected with the disconnecting link, described short circuit piece one end are connected with the end shield lead through the dielectric loss measuring instrument,
The other end of the short circuit piece and the short circuit piece of the ground wire connection around the dielectric loss measuring instrument.
In one of the embodiments, in above-mentioned on-line monitoring intelligent voltage transformer, it is provided with the terminal board
For by the first lead-out terminal of the signal output of the combination sensor and for by the signal output of the dielectric loss sensor
The second lead-out terminal.
In one of the embodiments, in above-mentioned on-line monitoring intelligent voltage transformer, the voltage transformer body
Powered oil taking apparatus be arranged in the casing.
Preferably, in above-mentioned on-line monitoring intelligent voltage transformer, insurance is provided with the voltage transformer body
Thick stick.
In one of the embodiments, in above-mentioned on-line monitoring intelligent voltage transformer, the terminal board by with institute
State the vertically arranged column of terminal board to be connected with the casing, the terminal board is rectangular end daughter board, the rectangular end daughter board
The column is provided with four angles.
In one of the embodiments, in above-mentioned on-line monitoring intelligent voltage transformer, case is offered on the casing
Body door, the secondary terminal box of the cabinet door and the voltage transformer are positioned opposite.
It can be seen from the above technical proposal that on-line monitoring intelligent voltage transformer provided by the utility model, including electricity
Press transformer body, combination sensor, casing, terminal board, dielectric loss sensor, protection device and ground terminal.Wherein combination passes
The fuel tank lower end that sensor is arranged on voltage transformer body in secondary terminal box is provided with casing, and terminal board is provided with casing,
Dielectric loss sensor and protection device, combination sensor and dielectric loss sensor communicate to connect with end shield.Combination sensor and dielectric loss
Sensor and voltage transformer integrated setting, combination sensor coordinate the partial discharge realized to voltage transformer with dielectric loss sensor
Test and dielectric loss test, the part of combination sensor and dielectric loss sensor as voltage transformer, there is provided to mutual induction of voltage
The hardware condition of the shelf depreciation of device and the live testing of dielectric loss, convenient in charge process part can be detected so as to play
Electric discharge and the effect of dielectric loss, make the live testing of current transformer convenient, safe and accurate, without the external biography of deenergization
Sensor, so as to also just reduce the economic loss brought due to power failure.Ground terminal realizes the effective grounding of end shield, ensures voltage
The trouble free service of transformer.During on-line checking, protection device is disconnected, seals in dielectric loss measuring instrument, after the completion of test, closure protection dress
Put；When power failure, prerun, protection device is disconnected, seals in dielectric loss measuring instrument, after the completion of test, close protection device；Live detection
When, protection device is closed, is not required to seal in dielectric loss measuring instrument.
Brief description of the drawings
Fig. 1 is the on-line monitoring intelligent voltage transformer structural representation that the utility model embodiment provides；
Fig. 2 is the schematic diagram for the dielectric loss sensor that the utility model embodiment provides.
Description of reference numerals：
1st, voltage transformer body, 2, secondary terminal box, 3, combination sensor, 4, casing, 5, dielectric loss sensor, 6, protection
Device, 7, powered oil taking apparatus, 8, bumper, 9, terminal board.
Embodiment
It is below in conjunction with accompanying drawing and specifically real for the purpose of this utility model, technical scheme and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be appreciated that embodiment described herein
Only to explain the utility model, the scope of protection of the utility model is not limited.
It should be noted that when element is referred to as " being fixedly arranged on ", " being arranged at " or " install in " another element, it can be with
Directly on another element or there may also be element placed in the middle.When an element is considered as " connection " another yuan
Part, it can be directly to another element or may be simultaneously present centering elements；One element and another element
The concrete mode being fixedly connected can be achieved by the prior art, and will not be repeated here, it is preferred to use the fixation side of threaded connection
Formula.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
" first " described in the utility model, " second " do not represent specific quantity and order, are only used for title
Distinguish.
It is that the on-line monitoring intelligent voltage transformer structure that the utility model embodiment provides is shown to refer to Fig. 1-Fig. 2 Fig. 1
It is intended to；Fig. 2 is the schematic diagram for the dielectric loss sensor that the utility model embodiment provides.
The utility model discloses one kind to monitor intelligent voltage transformer on-line, including voltage transformer body 1, combination pass
Sensor 3, casing 4, terminal board 9, dielectric loss sensor 5, protection device 6 and ground terminal.
The lower end of voltage transformer body 1 is provided with fuel tank, and casing 4 is located at the lower end of fuel tank.
Combination sensor 3 is arranged in the secondary terminal box 2 of voltage transformer in this programme, and combination sensor 3 is high frequency
The combination of partial discharge sensor and superfrequency partial discharge sensor, i.e., superfrequency partial discharge sensor and high frequency partial discharge sensor integration are existed
Together.End shield terminal board is provided with secondary terminal box 2, combination sensor 3 is communicated to connect by end shield terminal board and end shield.
The end shield of combination sensor 3 and voltage transformer body 1 communicates to connect, and realizes the partial discharge survey to voltage transformer
Examination.
Terminal board 9 is arranged in casing 4, and terminal board 9 extends to fuel tank one end from one end of the remote fuel tank of casing 4, end
Daughter board 9 is that dielectric loss sensor 5 and protection device 6 provide installation foundation.
Dielectric loss sensor 5 is arranged on terminal board 9, and dielectric loss sensor 5 communicates to connect with end shield, realizes to voltage transformer
Dielectric loss test.
Protection device 6, which is arranged on terminal board 9, to be used to control end shield to convey signal to dielectric loss sensor 5, during on-line checking,
Protection device 6 is disconnected, seals in dielectric loss measuring instrument, after the completion of test, closes protection device 6；When power failure or prerun, protection is disconnected
Device 6, dielectric loss measuring instrument is sealed in, after the completion of test, close protection device 6；During live testing, protection device 6 is closed, it is not necessary to
Dielectric loss measuring instrument is sealed in, directly carries out dielectric loss test using the dielectric loss sensor 5 in casing 4.
Ground terminal is arranged on fuel tank bottom, can realize the effective grounding of voltage transformer, ensures the peace that device uses
Quan Xing.
The on-line monitoring intelligent voltage transformer that this programme provides is mutual by combination sensor 3 and dielectric loss sensor 5 and voltage
Sensor body 1 carries out integrated setting, and individually intervention installation is not carried out to combination sensor 3 and dielectric loss sensor 5, and combination passes
The part of sensor 3 and dielectric loss sensor 5 as voltage transformer, realize to the powered of the partial discharge of voltage transformer and dielectric loss
Test, and the partial discharge of the powered progress and Dielectric Loss Test need not carry out power failure operation, be brought so as to reduce due to having a power failure
Loss.
This programme eliminates conventional end shield, will have a power failure test and live testing all integrates, and both pass through protection
Device 6 is controlled.
Casing 4 is a closed space, can accommodate voltage transformer body 1, combination sensor 3, terminal board 9, Jie
Sensor 5 and protection device 6 are damaged, above-mentioned part is played a protective role, while improve the compact-sized degree of voltage transformer.
This programme realizes the detection devices such as dielectric loss measuring instrument, high frequency partial discharge detection instrument and superfrequency partial discharge detection instrument and electricity
Transformer is pressed to cooperate, the reliability of equipment improves.
Protection device 6 includes：Disconnecting link and the short circuit piece being connected with disconnecting link, short circuit piece one end and the end through dielectric loss measuring instrument
Shield lead connection, the other end of short circuit piece and the short circuit piece of the ground wire connection around dielectric loss measuring instrument.During on-line checking, disconnect
Disconnecting link, dielectric loss measuring instrument is sealed in, after the completion of test, close disconnecting link；When power failure, prerun, disconnecting link is disconnected, seals in dielectric loss measuring instrument,
After the completion of test, disconnecting link is closed.
The powered and not charged situation that this programme tests dielectric loss is separately handled, using Jie in casing 4 during live testing
Damage sensor 5 is tested, it is necessary to access dielectric loss measuring instrument outside when not charged, two joints of dielectric loss measuring instrument and short circuit piece
Link.
Because disconnecting link can not make voltage transformer ground upon opening so that it is hidden that voltage transformer has certain safety
Suffer from, in order to reduce above-mentioned potential safety hazard, short circuit piece is additionally arranged in this programme, make it remain able to ensure voltage after disconnecting link disconnection
The effective grounding of transformer.
Although short circuit piece can play stable earthing effect, during short circuit piece is connected with dielectric loss measuring instrument
Need to unscrew short circuit piece, now short circuit piece can not play ground connection effect, and this just needs to close disconnecting link, ensure electromagnetic transformer
Effective grounding, reduce potential safety hazard.
It is provided with terminal board 9 for by the first lead-out terminal of the signal output of combination sensor 3 and for by dielectric loss
Second lead-out terminal of the signal output of sensor 5, first lead-out terminal realize the partial discharge information of the detection of combination sensor 3
Effectively transmit, the second lead-out terminal realizes effective transmission of the dielectric loss information of the detection of combination sensor 3.
End shield seat bears rain of exposing to the weather on the outside of the fuel tank of current transformer in running in the prior art
Leaching, is easily corroded, and then is damaged, and carrys out potential safety hazard to equipment belt.This programme brings to reduce because end shield seat damages
Potential safety hazard, cancel conventional end shield seat, replace end shield seat using end shield terminal board, end shield terminal board is arranged on by lead
Fuel tank bottom, end shield terminal board are not contacted with external environment in the process of running, and protective effect is served to end shield terminal board, drop
Low potential safety hazard.
The powered oil taking apparatus 7 of voltage transformer of the prior art is arranged on outside the fuel tank of voltage transformer, except
It is easily impaired outer in installation process, bear to expose to the weather in motion process to drench with rain and also easily corroded and damaged, cause
Certain potential safety hazard be present after the powered long-term use of oil taking apparatus 7.This programme takes oily dress in order to reduce above-mentioned hidden danger, by powered
Put 7 to be arranged in casing 4, isolated powered oil taking apparatus 7 with external environment by casing 4, powered oily dress is taken so as to extend
7 service life is put, reduces potential safety hazard.
In view of the safety of operating personnel, this programme increases on voltage transformer body 1 is provided with bumper 8, insurance
Thick stick 8 is U-shaped bumper, it is preferred that bumper 8 is arranged on fuel tank upper end.
Terminal board 9 is connected by the column vertical with terminal board 9 with casing 4, and terminal board 9 is rectangular end daughter board, rectangular end
Column is provided with four angles of daughter board, for column with casing 4 by being welded to connect, the length of column is about 70mm.Preferably,
Terminal board 9 is expoxy glass terminal board, and the size of terminal board 9 is 200mm*300mm.
Cabinet door is offered on casing 4, maintenance of the staff to equipment in casing 4, and casing 4 and electricity can be facilitated
Press the secondary terminal box 2 of transformer positioned opposite, avoid secondary lead wires pipe, avoid cabinet door from breaking secondary lead wires pipe when opening.
Sealing strip is provided with cabinet door, the sealed connection that cabinet door is open with casing 4 is realized, to being arranged in casing 4
Sensor and end shield terminal board play a protective role.
Lock is provided with casing 4, casing 4 is attached with cabinet door by lock, and the number of lock is two, can
Ensure the firm connection of casing 4 and cabinet door.
Lock is opened by key, and in order to avoid key loss, the hook of extension key is provided on casing 4.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. one kind on-line monitoring intelligent voltage transformer, it is characterised in that including：
Voltage transformer body；
Combination sensor, the combination sensor are arranged in the secondary terminal box of the voltage transformer, the combination sensing
Device includes high frequency partial discharge sensor and superfrequency partial discharge sensor, the end of the combination sensor and the voltage transformer body
Screen is communicated to connect by end shield terminal board；
It is arranged on the casing of the fuel tank lower end of the voltage transformer；
The terminal board being arranged in the casing, the terminal board is from remote described fuel tank one end of the casing to the fuel tank
End extension；
Dielectric loss sensor on the terminal board is arranged on, the dielectric loss sensor communicates to connect with the end shield；
It is arranged on the protection device for being used to control the end shield to convey signal to the dielectric loss sensor on the terminal board；
It is arranged on the ground terminal of the fuel tank bottom.
2. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that the protection device includes：
Disconnecting link and the short circuit piece being connected with the disconnecting link, described short circuit piece one end connect with the end shield lead through the dielectric loss measuring instrument
Connect, the other end of the short circuit piece and the short circuit piece of the ground wire connection around the dielectric loss measuring instrument.
3. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that be provided with the terminal board
For by the first lead-out terminal of the signal output of the combination sensor and for by the signal output of the dielectric loss sensor
The second lead-out terminal.
4. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that the voltage transformer body
Powered oil taking apparatus be arranged in the casing.
5. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that the voltage transformer body
On be provided with bumper.
6. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that the terminal board by with institute
State the vertically arranged column of terminal board to be connected with the casing, the terminal board is rectangular end daughter board, the rectangular end daughter board
The column is provided with four angles.
7. on-line monitoring intelligent voltage transformer according to claim 1, it is characterised in that offer case on the casing
Body door, the secondary terminal box of the cabinet door and the voltage transformer are positioned opposite.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028467 | 2016-08-31 | ||
| CN2016210284678 | 2016-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710490U true CN206710490U (en) | 2017-12-05 |
Family
ID=60466073
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720489642.1U Active CN206710490U (en) | 2016-08-31 | 2017-05-04 | One kind on-line monitoring intelligent voltage transformer |
Country Status (1)
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| CN (1) | CN206710490U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2700368C1 (en) * | 2018-12-26 | 2019-09-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Method for determining technical state of a digital transformer based on parameters of partial discharges in insulation |
| RU2700369C1 (en) * | 2018-12-26 | 2019-09-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Technical monitoring device of digital transformer by parameters of partial discharges in insulation |
| CN110429750A (en) * | 2019-09-09 | 2019-11-08 | 周封 | The intelligent electric machine terminal box of integrated prepackage type internet of things sensors |
| RU2724991C1 (en) * | 2019-09-03 | 2020-06-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Method for determining technical state of insulation of a digital transformer based on partial discharge parameters |
-
2017
- 2017-05-04 CN CN201720489642.1U patent/CN206710490U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2700368C1 (en) * | 2018-12-26 | 2019-09-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Method for determining technical state of a digital transformer based on parameters of partial discharges in insulation |
| RU2700369C1 (en) * | 2018-12-26 | 2019-09-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Technical monitoring device of digital transformer by parameters of partial discharges in insulation |
| RU2724991C1 (en) * | 2019-09-03 | 2020-06-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Ивановский государственный энергетический университет имени В.И. Ленина" (ИГЭУ) | Method for determining technical state of insulation of a digital transformer based on partial discharge parameters |
| CN110429750A (en) * | 2019-09-09 | 2019-11-08 | 周封 | The intelligent electric machine terminal box of integrated prepackage type internet of things sensors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190628 Address after: 510620 No. 2 Tianhe two road, Tianhe District, Guangzhou, Guangdong Patentee after: Guangzhou Power Supply Bureau Address before: 510620 No. 2 Tianhe two road, Tianhe District, Guangzhou, Guangdong Co-patentee before: Hunan Electric Porcelain Electrical Appliance Co. Ltd. Patentee before: Guangzhou Power Supply Bureau |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200918 Address after: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620 Tianhe District, Guangzhou, Tianhe South Road, No. two, No. 2, No. Patentee before: GUANGZHOU POWER SUPPLY Co.,Ltd. |