CN107863768A - One kind is based on oil immersed type testing transformer residual charge automatic releasing device - Google Patents
One kind is based on oil immersed type testing transformer residual charge automatic releasing device Download PDFInfo
- Publication number
- CN107863768A CN107863768A CN201711294166.9A CN201711294166A CN107863768A CN 107863768 A CN107863768 A CN 107863768A CN 201711294166 A CN201711294166 A CN 201711294166A CN 107863768 A CN107863768 A CN 107863768A
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- China
- Prior art keywords
- residual charge
- testing transformer
- contact rod
- liftable
- conductive contact
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- Pending
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 235000004443 Ricinus communis Nutrition 0.000 claims abstract description 14
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 238000009422 external insulation Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000004382 potting Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 210000002683 foot Anatomy 0.000 description 16
- 230000005611 electricity Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention proposes one kind and is based on oil immersed type testing transformer residual charge automatic releasing device, belongs to high voltage and insulation technology field.Including conductive contact, liftable contact rod, external insulation housing, interior conducting bracket, insulator foot, fixed foot stool, movable castor, control module, power module, protection circuit, switch condition detection circuit.The workflow of the present apparatus is：The on off state of high-potting console is uninterruptedly detected by switch condition detection circuit, and state variable is sent to control module to operate the lifting of contact rod, the conductive contact of liftable contact rod connection is fully contacted with testing transformer high-voltage output end so that residual charge is finished by conductive contact, liftable contact rod, interior conducting bracket, ground wire release.The present apparatus realizes the automatically export and release to testing transformer high-voltage output end residual charge.There is method easy to loading and unloading, simple in construction, to be different from conventional manual discharge, the present apparatus greatly reduces the danger of experiment.It can be widely applied to the release of high-voltage isulation field electric power experiment oil-filled transformer residual charge.
Description
Technical field
It is particularly a kind of removable the present invention relates to a kind of device based on the release of oil immersed type testing transformer residual charge
And device that carry out the release of testing transformer high-voltage output end electric charge automatically, belong to high voltage and insulation technology field.
Background technology
Transformer extensively should receive as effective equipment for obtaining experiment high pressure in power industry and power test
With.Due to the presence of transformer distribution capacity itself, interpolar still has substantial amounts of residual charge after electric discharge, and this is not only to experiment
Itself impact and certain danger be present.Although Traditional Man, which discharges, can solve the problem that the elimination problem of residual charge,
But artificial opening isolation safe door still has certain unsafe factor into high-pressure work area, if not entering timely
The not thorough caused consequence of row effectively protection or manual discharge is hardly imaginable.Therefore, a kind of transformer residual charge is invented certainly
Dynamic release device is very necessary.
Existing residual charge release device principle is that insulation is wrapped up outside stub mostly, passes through artificial hand held
Close to by release object reach eliminate residual charge purpose, it is hidden that this mode does not still eliminate safety that may be present thoroughly
Suffer from, be of limited application.Such as Chinese patent " residual charge release "（Application number：201410476049.4）Propose one kind just
Formula residual charge release is taken, staff holds insulated handle and residual charge is flowed into the earth by contact rod, conductor wire.Should
Apparatus system is although simple in construction, but safeguard measure is not perfect enough, does not solve the person with residual charge release end apart from mistake
The problem of near, the release of laboratory transformer residual charge is not suitable for it, application is small.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provides one kind and is applied to testing transformer and is automatically performed remnants
The device of electric charge release, the device have the characteristics that it is safe and reliable, precisely discharge, be easy to loading and unloading, simple in construction.The mesh of the present invention
Be by the device, conveniently, safely, accurately testing transformer high-voltage output end residual charge can be discharged,
The safety of experimenter and testing equipment is ensure that to greatest extent.
The technical solution adopted for the present invention to solve the technical problems is：
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that described device bag
Include：Liftable contact rod（1）, conductive contact（2）, external insulation housing（3）, insulator foot（4）, movable castor（5）, fixed foot stool
（6）, control module（7）, protection circuit（8）, power module（9）, switch condition detection circuit（10）, interior conducting bracket（11）.
Fixed foot stool（2）One end connection movable castor（5）, the other end be fixed on insulator foot（4）On, movable castor
（5）It can facilitate and device is transported to measure field.
Interior conducting bracket（11）One end be fixed on insulator foot（4）Upper, other end connection liftable contact rod（1）.
Conductive contact（2）With liftable contact rod（1）Connection, passes through liftable contact rod（1）Change conductive contact（2）With
The difference in height of oil immersed type testing transformer high-voltage output end, until fully contact is discharged.
Switch condition detection circuit（10）The high-voltage switch gear state of high-potting console is detected, by state variable
It is sent to control module（7）To control liftable contact rod（1）And drive conductive contact（2）Through being connected to interior conducting bracket（11）On
Ground wire carry out residual charge release.
Protection circuit（8）Link control module respectively（7）And switch condition detection circuit（10）Protection circuit.
Power module（9）For protection circuit（8）, control module（7）, switch condition detection circuit（10）Power supply is provided.
One kind is based on oil immersed type testing transformer residual charge automatic releasing device control module, it is characterised in that：It is described
Control module（7）Inside includes indicating lamp device, conductive contact（2）End in contact, the bright expression of indicator lamp are exported with transformer high-voltage
Residual charge is present, and after being substantially discharged, indicator lamp goes out, and expression electric discharge is complete, and now control module manipulates liftable contact rod（1）
Drive conductive contact（2）Transformer high-voltage output end is left to recover to original position.
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Conduction is touched
Head（2）, liftable contact rod（1）Interior conducting bracket（11）Material be fine copper, fine copper has outstanding thermal conductivity and electric conductivity,
Silver is only second to, but it is cheap, therefore be widely used.
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Interior conduction
Support（11）With lifting contact rod（1）Surface is equipped with external insulation housing（3）, insulation shell can ensure the export of residual charge
Danger will not be formed to survey crew, and conducting bracket is not damaged by the external world in protection, the service life of extension fixture.
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Conduction is touched
Head（2）, interior conducting bracket（11）With liftable contact rod（1）Connected mode use welded type, the advantage is that to greatest extent
On the premise of ensureing device electric conductivity, there is preferable connectivity and larger rigidity；Insulator foot, fixed foot stool and movable leg
It is connected by screw bolts between wheel and is easily installed and dismantles, facilitates the measurement of operations staff.
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Interior conduction
Support（11）It is directly connected to ground wire, residual charge is flowed into the earth by ground wire.
Described one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Movable leg
Wheel（5）Equipped with fixing device, the accuracy of electric discharge can be improved in experimental site remains stationary.
Compared with prior art, the invention has the advantages that：
1）The present apparatus realizes the process for being derived automatically from Yu discharging automatically based on transformer residual charge after high-potting, can
Ensure that experimenter carries out safe-discharge operation to testing transformer outdoors in isolation safe, ensure that experiment people to greatest extent
The safety of member.
2）Modules in described device cooperate, and ensure that the overall stability of system；And each functions of modules
Easily realize, hardware performance requirements are low, therefore apparatus structure is simple, cost is cheap.
3）Support is fixed to device using interior conducting bracket and external insulation housing in described device, is ensureing safe put
The danger of electric leakage is prevented on the premise of electricity again, is connected by screw bolts and is easy between insulator foot, fixed foot stool and movable castor
Installation and removal, facilitate operations staff to use.
4）Movable castor is furnished with fixing device in described device, can improve electric discharge in experimental site remains stationary
Accuracy.
Brief description of the drawings
Fig. 1：Based on oil immersed type testing transformer residual charge automatic releasing device structure chart.
Fig. 2：Based on oil immersed type testing transformer residual charge automatic releasing device device top view.
In Fig. 1：1- liftables contact rod, 2- conductive contacts, 3- external insulations housing, 4- insulator foots, 5- movable castors, 6-
Fixed foot stool, 7- control modules, 8- protection circuits, 9- power modules, 10- switch condition detection circuits, conducting bracket in 11-.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings：
As shown in figure 1, device includes including described device：Liftable contact rod（1）, conductive contact（2）, external insulation housing（3）、
Insulator foot（4）, movable castor（5）, fixed foot stool（6）, control module（7）, protection circuit（8）, power module（9）, switch
State detection circuit（10）, interior conducting bracket（11）.
As shown in figure 1, switch condition detection circuit（10）The uninterrupted detection real-time on off state of high-potting console,
And send state variable to control module（7）, switch condition detection circuit（10）It may generally be SCM system and its periphery
Circuit.
Control module（7）Operate contact rod（1）Lifting, make liftable contact rod connect（1）Conductive contact（2）With examination
Test transformer high-voltage output end fully to contact, now control module（7）Internal indicator lamp represents remaining electricity from becoming clear to extinguishing
Lotus passes through conductive contact（2）, liftable contact rod（1）, interior conducting bracket（11）, ground wire release finish.
After residual charge release completely, control module（7）Manipulate liftable contact rod（1）Drive conductive contact（2）
Transformer high-voltage output end is left to recover to original position, wherein control module（7）It may generally be SCM system and its periphery electricity
Road.
As shown in Fig. 2 external insulation housing（3）It is installed tightly to liftable contact rod（1）, interior conducting bracket（11）Surface,
Wherein insulation shell can use insulated paint to coordinate plastic casing mode.
Insulator foot（4）Profile is square, ensure that the uniform force and stability of device；Insulator foot, fixed feet
It is connected by screw bolts between frame and movable castor and is easily installed and dismantles.
The preferable embodiment of the present invention is the foregoing is only, is not intended to limit the invention, all spirit in the present invention
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (7)
1. one kind is based on oil immersed type testing transformer residual charge automatic releasing device, it is characterised in that：Described device includes：Can
Lift contact rod（1）, conductive contact（2）, external insulation housing（3）, insulator foot（4）, movable castor（5）, fixed foot stool（6）、
Control module（7）, protection circuit（8）, power module（9）, switch condition detection circuit（10）, interior conducting bracket（11）；
Fixed foot stool（2）One end connection movable castor（5）, the other end be fixed on insulator foot（4）On, movable castor（5）Can
It is convenient that device is transported to measure field；
Interior conducting bracket（11）One end be fixed on insulator foot（4）Upper, other end connection liftable contact rod（1）；
Conductive contact（2）With liftable contact rod（1）Connection, passes through liftable contact rod（1）Change conductive contact（2）With oil immersion
The difference in height of formula testing transformer high-voltage output end, until fully contact is discharged；
Switch condition detection circuit（10）The high-voltage switch gear state of high-potting console is detected, state variable is transmitted
To control module（7）To control liftable contact rod（1）And drive conductive contact（2）Through being connected to interior conducting bracket（11）On ground
Line carries out the release of residual charge；
Protection circuit（8）Link control module respectively（7）And switch condition detection circuit（10）Protection circuit；
Power module（9）For protection circuit（8）, control module（7）, switch condition detection circuit（10）Power supply is provided.
It is 2. according to claim 1 a kind of based on oil immersed type testing transformer residual charge automatic releasing device control mould
Block, it is characterised in that：The control module（7）Inside includes indicating lamp device, conductive contact（2）With transformer high-voltage output end
Contact, indicator lamp is bright to represent residual charge presence, and after being substantially discharged, indicator lamp goes out representative electric discharge completely, control module liftable
Contact rod（1）Drive conductive contact（2）Transformer high-voltage output end is left to recover to original position.
3. one kind according to claim 1 is based on oil immersed type testing transformer residual charge automatic releasing device, its feature
It is：Conductive contact（2）, liftable contact rod（1）Interior conducting bracket（11）Material be fine copper.
4. one kind according to claim 1 is based on oil immersed type testing transformer residual charge automatic releasing device, its feature
It is：Interior conducting bracket（11）With lifting contact rod（1）Surface is equipped with external insulation housing（3）.
5. one kind according to claim 1 is based on oil immersed type testing transformer residual charge automatic releasing device, its feature
It is：Conductive contact（2）, interior conducting bracket（11）With liftable contact rod（1）Connected mode use welded type；Insulation bottom
It is connected by screw bolts between seat, fixed foot stool and movable castor.
6. one kind according to claim 1 is based on oil immersed type testing transformer residual charge automatic releasing device, its feature
It is：Interior conducting bracket（11）It is directly connected to ground wire, residual charge is flowed into the earth by ground wire.
7. one kind according to claim 1 is based on oil immersed type testing transformer residual charge automatic releasing device, its feature
It is：Movable castor（5）Equipped with fixing device, the accuracy of electric discharge can be improved in experimental site remains stationary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294166.9A CN107863768A (en) | 2017-12-08 | 2017-12-08 | One kind is based on oil immersed type testing transformer residual charge automatic releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711294166.9A CN107863768A (en) | 2017-12-08 | 2017-12-08 | One kind is based on oil immersed type testing transformer residual charge automatic releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863768A true CN107863768A (en) | 2018-03-30 |
Family
ID=61705521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711294166.9A Pending CN107863768A (en) | 2017-12-08 | 2017-12-08 | One kind is based on oil immersed type testing transformer residual charge automatic releasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863768A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717145A (en) * | 2018-05-18 | 2018-10-30 | 沈阳工业大学 | A kind of high-pressure installation electric discharge safety detection device and its control method |
| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4858061A (en) * | 1988-03-02 | 1989-08-15 | General Dynamics Corp. | Electrostatic discharge control device |
| CN2232145Y (en) * | 1995-04-26 | 1996-07-31 | 青岛电业局 | Movable high voltage insulation test meter |
| CN205826710U (en) * | 2016-07-28 | 2016-12-21 | 国网辽宁省电力有限公司丹东供电公司 | High-voltage electrical apparatus automatic discharging protection device |
| CN106374341A (en) * | 2016-08-31 | 2017-02-01 | 兴盛电器股份有限公司 | Automatic discharging rod of high-voltage switch cabinet withstand voltage test-bed |
| CN206301023U (en) * | 2016-10-31 | 2017-07-04 | 广东优科检测技术服务有限公司 | Pressure-sensitive dash current test machine |
| CN206412824U (en) * | 2017-01-24 | 2017-08-15 | 新疆轻工职业技术学院 | High-voltage electrical apparatus automatic discharging protection device |
| CN207603204U (en) * | 2017-12-08 | 2018-07-10 | 哈尔滨理工大学 | One kind is based on oil immersed type testing transformer residual charge automatic releasing device |
-
2017
- 2017-12-08 CN CN201711294166.9A patent/CN107863768A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4858061A (en) * | 1988-03-02 | 1989-08-15 | General Dynamics Corp. | Electrostatic discharge control device |
| CN2232145Y (en) * | 1995-04-26 | 1996-07-31 | 青岛电业局 | Movable high voltage insulation test meter |
| CN205826710U (en) * | 2016-07-28 | 2016-12-21 | 国网辽宁省电力有限公司丹东供电公司 | High-voltage electrical apparatus automatic discharging protection device |
| CN106374341A (en) * | 2016-08-31 | 2017-02-01 | 兴盛电器股份有限公司 | Automatic discharging rod of high-voltage switch cabinet withstand voltage test-bed |
| CN206301023U (en) * | 2016-10-31 | 2017-07-04 | 广东优科检测技术服务有限公司 | Pressure-sensitive dash current test machine |
| CN206412824U (en) * | 2017-01-24 | 2017-08-15 | 新疆轻工职业技术学院 | High-voltage electrical apparatus automatic discharging protection device |
| CN207603204U (en) * | 2017-12-08 | 2018-07-10 | 哈尔滨理工大学 | One kind is based on oil immersed type testing transformer residual charge automatic releasing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717145A (en) * | 2018-05-18 | 2018-10-30 | 沈阳工业大学 | A kind of high-pressure installation electric discharge safety detection device and its control method |
| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
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