CN110429740A - A kind of dust-protection type generator rotor insulation monitoring brushgear - Google Patents
A kind of dust-protection type generator rotor insulation monitoring brushgear Download PDFInfo
- Publication number
- CN110429740A CN110429740A CN201910800327.XA CN201910800327A CN110429740A CN 110429740 A CN110429740 A CN 110429740A CN 201910800327 A CN201910800327 A CN 201910800327A CN 110429740 A CN110429740 A CN 110429740A
- Authority
- CN
- China
- Prior art keywords
- brush
- brush pot
- dust
- brushgear
- generator rotor
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 title abstract description 10
- 229910052701 rubidium Inorganic materials 0.000 claims abstract description 13
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
A kind of dust-protection type generator rotor insulation monitoring brushgear, including lifting brush pot, lifting has in brush pot equipped with rubidium magnet, electromagnet includes electromagnetic core, electromagnetic coil, after electromagnetic coil is powered, the magnetic pole and rubidium magnet homopolar-repulsion of electromagnet will be lifted brush pot and jacked up, the sealing film above device is promoted with brush pot is lifted at this time, and the positioning pin limitation for being mounted on device side lifts brush pot and praises height；During act brush pot lifts, outside air enters in spiracle the gap for entering and lifting between brush pot and base through filter；Brush pot is lifted after electromagnetic coil power loss to fall after rise rapidly under the suction of rubidium magnet and electromagnetic core.
Description
Technical field
The invention is related to field of electrical control, and in particular to a kind of dust-protection type generator rotor insulation monitoring brushgear.
Background technique
Existing large-scale generator rotor mostly uses pouring-in earth protective device, periodically lifts by using independent brush lifting device
It plays brush to contact with slip ring axis, to measure rotor windings insulating resistance value.Currently, the important component as the protective device
Brush lifting device type is less in the market, and existing type carbon brush is open-type structure, does not have dust reduction capability.However,
Due to industrial environment complexity, brush lifting device is typically mounted inside generator excitation end, is chronically at high temperature, more dirt, electricity
In magnetic, air-cooled circulation environment, the impurity such as dust, condensed water in circulation cold air are easily entered inside brush lifting device, make device
Internal dirty, corrosion, eventually leads to that device is stuck, directly affects the normal operation of protective device, or even false alarm is caused to cause
Generator chaser.
Summary of the invention
It is an object of the invention to: it is few in view of existing brush lifting device type, do not have dust reduction capability, operational reliability difference
Situation, in order to adapt to the more dirt of industry spot, high temperature, electromagnetism, air-cooled circulation environment, it is anti-that we devise a kind of sealing filtering type
Dirt brush lifting device, it is ensured that device can in severe site environment reliability service.
Technical scheme is as follows: a kind of dust-protection type generator rotor insulation monitoring brushgear, including lifts brush pot,
Lifting has in brush pot equipped with rubidium magnet, and electromagnet includes electromagnetic core, electromagnetic coil, after electromagnetic coil is powered, the magnetic of electromagnet
Pole and rubidium magnet homopolar-repulsion will be lifted brush pot and jacked up, and the sealing film above device is promoted with brush pot is lifted at this time, is mounted on
The positioning pin limitation of device side lifts brush pot and praises height；During act brush pot lifts, outside air enters through filter is exhaled
The gap lifted between brush pot and base is entered in sucker；Brush pot is lifted after electromagnetic coil power loss in the suction of rubidium magnet and electromagnetic core
Power effect is lower to be fallen after rise rapidly.
The single condctor on carbon brush is connect to be connected on a contact pin of aviation plug.
By aviation plug by externally measured circuit and carbon brush connection, the rotor contacted after carbon brush is picked up with carbon brush is connect
Enter to measurement circuit.
The device is installed on other component using bolt by bolt hole.
The device is installed on bracket using bolt by bolt hole.
Sealing film is sticked to device side, is pushed down among film by carbon brush, is coated on dress always during entire act brush
Set surface.
Remarkable result of the invention is: dust-proof test and high temperature resistant test: brush lifting device is put into dust gathering arrester, and
The impurity such as dust, flour are filled up in cover, and brush environment temperature is heated to 80 DEG C with industrial fan heater.It brushes and surveys by 5000 acts
There is not bite phenomenon in examination, device, and inside is without accumulation dust impurity, and brush running current waveform is good, and electric property is steady
It is fixed.
Detailed description of the invention
Attached drawing 1 is dust-protection type generator rotor insulation monitoring brushgear side view.
Attached drawing 2 is dust-protection type generator rotor insulation monitoring brushgear front view.
Attached drawing 3 is dust-protection type generator rotor insulation monitoring brushgear breathing hole pattern.
Attached drawing 4 is dust-protection type generator rotor insulation monitoring brushgear brush lifting device top view.
In figure: it is exhausted that 1- base 2- aviation plug 3- electromagnetic core 4- electromagnetic coil 5- spiracle 6- positioning pin 7- lifts brush pot 8-
Edge covers 9- sealing film 10- carbon brush 11- single condctor 12- rubidium magnet 13- filter disc 14- baffle 15- bolt hole.
Specific embodiment
A kind of dust-protection type generator rotor insulation monitoring brushgear, including brush pot 7 is lifted, lifting has in brush pot 7 equipped with rubidium magnetic
Iron 12, electromagnet includes electromagnetic core 3, electromagnetic coil 4, and after electromagnetic coil 4 is powered, the magnetic pole and rubidium magnet 12 of electromagnet are same
Pole is repelled each other, and will be lifted brush pot 7 and is jacked up, and the sealing film 9 above device is promoted with brush pot 7 is lifted at this time, is mounted on device side
Positioning pin 6 be used to limit lift brush pot 7 praise height.During act brush pot lifts, outside air enters through filter 13 is exhaled
5 enter eventually into the gap lifted between brush pot 7 and base 1 in sucker.After 4 power loss of electromagnetic coil lift brush pot 7 rubidium magnet 12 with
It is fallen after rise rapidly under the suction of electromagnetic core 3, is full of and is lifting the air in brush pot and base gap through spiracle and filter disc row
Out.So far, device completes one and lifts swiped through journey.
It connects on the contact pin that the single condctor 11 on carbon brush 10 ultimately leads to aviation plug 2, it will by aviation plug 2
The rotor contacted with carbon brush 10, can be linked into after carbon brush 10 is picked up and measure back by externally measured circuit and 10 connection of carbon brush
Road.
The device can be installed on other component (such as bracket) using bolt by bolt hole 15.
Sealing film 9 is sticked to device side, is pushed down among film by carbon brush, is coated on dress always during entire act brush
Surface is set, therefore can prevent external dust, impurity from entering inside device.
Claims (6)
1. a kind of dust-protection type generator rotor insulation monitors brushgear, it is characterised in that: including lifting brush pot (7), lift brush pot (7)
Inside having equipped with rubidium magnet (12), electromagnet includes electromagnetic core (3), electromagnetic coil (4), after electromagnetic coil (4) are powered, electromagnetism
The magnetic pole and rubidium magnet (12) homopolar-repulsion of iron will lift brush pot (7) and jack up, and the sealing film above device (9) is brushed with act at this time
Cylinder (7) is promoted together, and positioning pin (6) limitation for being mounted on device side lifts brush pot (7) and praises height；Process is lifted lifting brush pot
In, outside air enters in spiracle (5) through filter (13) enters the gap lifted between brush pot (7) and base (1)；Electromagnetism
Brush pot (7) are lifted after coil (4) power loss to fall after rise rapidly under rubidium magnet (12) and the suction of electromagnetic core (3).
2. a kind of dust-protection type generator rotor insulation according to claim 1 monitors brushgear, it is characterised in that: connect
Single condctor (11) on carbon brush (10) is connected on a contact pin of aviation plug (2).
3. a kind of dust-protection type generator rotor insulation according to claim 2 monitors brushgear, it is characterised in that: pass through
By externally measured circuit and carbon brush (10) connection, what is contacted after carbon brush (10) is picked up with carbon brush (10) turns aviation plug (2)
Son is linked into measurement circuit.
4. a kind of dust-protection type generator rotor insulation according to claim 1 monitors brushgear, it is characterised in that: pass through
The device is installed on other component by bolt hole (15) using bolt.
5. a kind of dust-protection type generator rotor insulation according to claim 4 monitors brushgear, it is characterised in that: pass through
The device is installed on bracket by bolt hole (15) using bolt.
6. a kind of dust-protection type generator rotor insulation according to claim 1 monitors brushgear, it is characterised in that: sealing
Film (9) is sticked to device side, is pushed down among film by carbon brush (10), is coated on device table always during entire act brush
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800327.XA CN110429740B (en) | 2019-08-28 | 2019-08-28 | Dustproof generator rotor insulation monitoring brush device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800327.XA CN110429740B (en) | 2019-08-28 | 2019-08-28 | Dustproof generator rotor insulation monitoring brush device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110429740A true CN110429740A (en) | 2019-11-08 |
| CN110429740B CN110429740B (en) | 2024-04-09 |
Family
ID=68416321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910800327.XA Active CN110429740B (en) | 2019-08-28 | 2019-08-28 | Dustproof generator rotor insulation monitoring brush device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110429740B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813208A (en) * | 1954-04-20 | 1957-11-12 | George D Ritter | Electrical contact brush |
| CN1150713A (en) * | 1995-09-06 | 1997-05-28 | 日本电装株式会社 | AC generator |
| CN2792002Y (en) * | 2005-04-14 | 2006-06-28 | 卢杰声 | Energy-saving motor |
| CN2809985Y (en) * | 2005-08-04 | 2006-08-23 | 张宏伟 | Carbon brush assembly for generator |
| CN1992451A (en) * | 2005-12-30 | 2007-07-04 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| US20090021099A1 (en) * | 2005-04-11 | 2009-01-22 | Pulsed Inertial Electric Motor | Pulsed Inertial Electric Motor |
| CN201277981Y (en) * | 2008-11-04 | 2009-07-22 | 山东齐鲁电机制造有限公司 | Brush rack apparatus for measuring excitation voltage |
| CN101645633A (en) * | 2008-08-04 | 2010-02-10 | 德昌电机(深圳)有限公司 | Motor with ventilating structure |
| TW201025801A (en) * | 2008-12-22 | 2010-07-01 | Tatung Co | Brush-lifting device having cam structure |
| CN103746497A (en) * | 2014-02-14 | 2014-04-23 | 株洲湘火炬火花塞有限责任公司 | Method and device for protecting electric brush of power generator of vehicle |
| CN105242186A (en) * | 2015-11-03 | 2016-01-13 | 重庆通赛机电有限公司 | Generator rotor earth fault detection system |
| CN205195452U (en) * | 2015-11-19 | 2016-04-27 | 清河县驭能电器有限公司 | Automotive alternator |
| CN106130232A (en) * | 2016-07-15 | 2016-11-16 | 河北工业大学 | A kind of multi-power motor for electric automobile |
| CN106160356A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | A kind of generator carbon brush on-line automatic constant voltage regulation and blow device |
| CN210157009U (en) * | 2019-08-28 | 2020-03-17 | 福建福清核电有限公司 | Dustproof generator rotor insulation monitoring brush device |
-
2019
- 2019-08-28 CN CN201910800327.XA patent/CN110429740B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813208A (en) * | 1954-04-20 | 1957-11-12 | George D Ritter | Electrical contact brush |
| CN1150713A (en) * | 1995-09-06 | 1997-05-28 | 日本电装株式会社 | AC generator |
| US20090021099A1 (en) * | 2005-04-11 | 2009-01-22 | Pulsed Inertial Electric Motor | Pulsed Inertial Electric Motor |
| CN2792002Y (en) * | 2005-04-14 | 2006-06-28 | 卢杰声 | Energy-saving motor |
| CN2809985Y (en) * | 2005-08-04 | 2006-08-23 | 张宏伟 | Carbon brush assembly for generator |
| CN1992451A (en) * | 2005-12-30 | 2007-07-04 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| CN101645633A (en) * | 2008-08-04 | 2010-02-10 | 德昌电机(深圳)有限公司 | Motor with ventilating structure |
| CN201277981Y (en) * | 2008-11-04 | 2009-07-22 | 山东齐鲁电机制造有限公司 | Brush rack apparatus for measuring excitation voltage |
| TW201025801A (en) * | 2008-12-22 | 2010-07-01 | Tatung Co | Brush-lifting device having cam structure |
| CN103746497A (en) * | 2014-02-14 | 2014-04-23 | 株洲湘火炬火花塞有限责任公司 | Method and device for protecting electric brush of power generator of vehicle |
| CN106160356A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | A kind of generator carbon brush on-line automatic constant voltage regulation and blow device |
| CN105242186A (en) * | 2015-11-03 | 2016-01-13 | 重庆通赛机电有限公司 | Generator rotor earth fault detection system |
| CN205195452U (en) * | 2015-11-19 | 2016-04-27 | 清河县驭能电器有限公司 | Automotive alternator |
| CN106130232A (en) * | 2016-07-15 | 2016-11-16 | 河北工业大学 | A kind of multi-power motor for electric automobile |
| CN210157009U (en) * | 2019-08-28 | 2020-03-17 | 福建福清核电有限公司 | Dustproof generator rotor insulation monitoring brush device |
Non-Patent Citations (3)
| Title |
|---|
| 李光乾;李波;: "玉溪电站发电机转子绝缘低缺陷分析和处理", 浙江水利水电学院学报, vol. 27, no. 02, pages 73 - 76 * |
| 陈仓;曹浩军;: "发电机集电环环火事故分析及预防", 热力发电, no. 10, 15 October 2009 (2009-10-15), pages 85 - 88 * |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110429740B (en) | 2024-04-09 |
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