CN106655636A - Collecting ring apparatus and wind driven generator - Google Patents

Collecting ring apparatus and wind driven generator Download PDF

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Publication number
CN106655636A
CN106655636A CN201611143675.7A CN201611143675A CN106655636A CN 106655636 A CN106655636 A CN 106655636A CN 201611143675 A CN201611143675 A CN 201611143675A CN 106655636 A CN106655636 A CN 106655636A
Authority
CN
China
Prior art keywords
carbon brush
dust
temperature
brush
carbon
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.)
Pending
Application number
CN201611143675.7A
Other languages
Chinese (zh)
Inventor
王洪波
周斌
张东东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sany Electrical System Co Ltd
Original Assignee
Beijing Sany Electrical System Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Sany Electrical System Co Ltd filed Critical Beijing Sany Electrical System Co Ltd
Priority to CN201611143675.7A priority Critical patent/CN106655636A/en
Publication of CN106655636A publication Critical patent/CN106655636A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/28Cooling of commutators, slip-rings or brushes e.g. by ventilating

Abstract

The invention provides a collecting ring apparatus and a wind driven generator. The collecting ring apparatus comprises a slip ring arranged on a rotary shaft of the generator, a carbon brush matched with the slip ring, a shell and a dust removing mechanism, wherein the shell covers the exteriors of the rotary shaft of the generator, the slip ring, the carbon brush and the dust removing mechanism, and an air inlet and a dust discharging cavity are formed in the shell; and the dust removing mechanism and the rotary shaft of the generator are coaxially arranged, and connected with the dust removing cavity, so as to exhaust carbon powder generated by the carbon brush to the dust removing cavity. According to the collecting ring apparatus provided by the invention, the shell covers the exteriors of the rotary shaft of the generator, the slip ring, the carbon brush and the dust removing mechanism, and the air inlet and the dust discharging cavity are formed in the shell; the dust removing mechanism and the rotary shaft of the generator are coaxially arranged, and connected with the dust removing cavity, so as to exhaust the carbon powder generated by the carbon brush to the dust removing cavity, so that the accumulated carbon powder is further discharged; and therefore, carbon powder accumulation can be effectively lowered, fault caused by carbon brush blocking can be avoided, and product fault rate is lowered, thereby lowering maintenance cost and improving market competitiveness of the product.

Description

Collector machine and wind-driven generator
Technical field
The present invention relates to technical field of wind power generator, more particularly, to a kind of collector machine and wind-driven generator.
Background technology
Collector machine is the electric installation that static excitation unit is provided the generator amature that electricity is streamed to rotate.
At present, collecting ring for wind driven generator device includes rotary shaft, slip ring, brush holder, carbon brush, collector shell.In actual fortune The electric current that carbon dust accumulation, obstruction carbon brush, carbon brush and collector ring loose contact are there is in row and is produced increases, strikes sparks, slip ring burns The failure such as hinder, burn.
The content of the invention
It is an object of the invention to provide a kind of collector machine and wind-driven generator, at least to solve to be deposited in prior art Carbon dust pile up, obstruction carbon brush, carbon brush and collector ring loose contact and the electric current increase that produces, sparking, slip ring are burnt, are burnt Deng one of failover technique problem.
To achieve these goals, the invention provides technical scheme below;
First aspect present invention provides a kind of collector machine, including the slip ring and institute that are arranged in electromotor rotary shaft State carbon brush, housing and dedusting mechanism that slip ring is engaged;
The housing is located at the outside of the electromotor rotary shaft, slip ring, carbon brush and the dedusting mechanism, and is provided with Air inlet and dust discharge chamber;
The dedusting mechanism is arranged with the electromotor rotating shaft coaxle, and is connected with the dust discharge chamber, will be described The carbon dust that carbon brush is produced is drawn to the dust discharge intracavity.
The collector machine that first aspect present invention is provided, housing is located at electromotor rotary shaft, slip ring, carbon brush and dedusting The outside of mechanism, and be provided with air inlet and dust discharge chamber, dedusting mechanism is arranged with electromotor rotating shaft coaxle, and with dust discharge chamber phase Connection, by the carbon dust that carbon brush is produced dust discharge intracavity is drawn to, and then the carbon dust piled up is discharged, and can efficiently reduce carbon dust Pile up, it is to avoid obstruction carbon brush failure, reduce the fault rate of product, so as to reduce maintenance cost, be conducive to the market of product Competitiveness.
In above-mentioned technical proposal, further, described collector machine also includes:
Device for monitoring temperature, the device for monitoring temperature is arranged on the brush shell of the carbon brush, when monitoring temperature dress Put when monitoring that the temperature of the carbon brush reaches preset temperature, then report to the police.
In the technical scheme, the setting of device for monitoring temperature can monitor the temperature of carbon brush, when the temperature for monitoring reaches During to preset temperature, report to the police, such that it is able to alarm set failure, be conducive to investigation and the removing of maintainer, improve The reliability of product.
In any of the above-described technical scheme, further, the device for monitoring temperature include temperature detector, controller and Alarm;
The temperature detector is connected respectively with the brush shell and the controller of the carbon brush, and detects the carbon brush Temperature;
The controller is connected with the alarm, when the temperature that the temperature detector detects carbon brush reach it is default During temperature, the unlatching of the alarm is controlled.
In the technical scheme, device for monitoring temperature includes temperature detector, controller and alarm, by temperature detection The connect setting of device, controller and alarm, makes the assembling monitoring of device for monitoring temperature convenient and simple.
In any of the above-described technical scheme, further, described collector machine also includes:
Carbon brush abrasion supervising device, the carbon brush abrasion supervising device is arranged on the brush shell of the carbon brush, for monitoring The wear extent of the carbon brush.
In the technical scheme, the setting of carbon brush abrasion supervising device can effectively monitor the wear extent of carbon brush, in real time Grasp carbon brush state, reduce carbon brush abrasion it is excessive and affect product use, improve the reliability of product.
In any of the above-described technical scheme, further, the air inlet is provided with induced duct.
In the technical scheme, air inlet is provided with induced duct, and induced duct can play guiding function to air inlet, side Just the entrance of ambient atmosphere, is conducive to producing the cooperation of air-flow with dedusting mechanism, and then improves the dust discharge ability of product.
In any of the above-described technical scheme, further, the air inlet is provided with induced draught fan.
In the technical scheme, air inlet arranges induced draught fan, facilitates the entrance of ambient atmosphere, is conducive to and dust removal machine Structure produces the cooperation of air-flow, and then improves the dust discharge ability of product.
In any of the above-described technical scheme, further, brush holder is connected with the housing, the carbon brush is arranged on described On brush holder, and it is engaged with the slip ring.
In the technical scheme, carbon brush is located on brush holder, and is coordinated with slip ring, makes carbon brush fixed structure simple, safely may be used Lean on.
In any of the above-described technical scheme, further, the dedusting mechanism is dust exhausting fan.
In the technical scheme, dedusting mechanism is dust exhausting fan, and dust exhausting fan buying is easy, and simple structure reduces product The production cost of product.
In any of the above-described technical scheme, access panel, the access panel and the housing are provided with the housing Bolt.
In the technical scheme, the convenient maintenance to enclosure interior part of setting of access panel improves the dimension of product Repair efficiency.
Second aspect present invention provides a kind of wind-driven generator, including the collector ring dress described in any of the above-described technical scheme Put.
The wind-driven generator that second aspect present invention is provided, is provided with the collector machine of first aspect present invention offer, Therefore there are whole beneficial effects of the collector machine of first aspect offer, here is not just repeated one by one.
Hinge structure of the present invention has the beneficial effect that:
The collector machine that the present invention is provided, housing is located at the outer of electromotor rotary shaft, slip ring, carbon brush and dedusting mechanism Portion, and air inlet and dust discharge chamber are provided with, dedusting mechanism is arranged with electromotor rotating shaft coaxle, and is connected with dust discharge chamber, with The carbon dust that carbon brush is produced is drawn to into dust discharge intracavity, and then the carbon dust piled up is discharged, carbon dust accumulation can be efficiently reduced, kept away Antifouling carbon brush failure, reduces the fault rate of product, so as to reduce maintenance cost, is conducive to the competitiveness of product in market.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the broken section structural representation of collector machine provided in an embodiment of the present invention;
Fig. 2 is the mplifying structure schematic diagram in the A portions shown in Fig. 1;
Fig. 3 is the mplifying structure schematic diagram in the B portions shown in Fig. 1;
Fig. 4 is the mplifying structure schematic diagram in the C portions shown in Fig. 1.
Reference:
101- electromotor rotary shafts;102- slip rings;103- carbon brush;104- housings;1041- access panels;105- dust discharge wind Fan;106- device for monitoring temperature;107- brush holders;108- air inlets;109- dust discharges chamber.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected;Can Being to be mechanically connected, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.
Fig. 1 is the broken section structural representation of collector machine provided in an embodiment of the present invention;Fig. 2 is shown in Fig. 1 A portions mplifying structure schematic diagram;Fig. 3 is the mplifying structure schematic diagram in the B portions shown in Fig. 1;Fig. 4 is the C portions shown in Fig. 1 Mplifying structure schematic diagram;
As Figure 1-4, the collector machine that the embodiment of first aspect present invention is provided, revolves including electromotor is arranged on Carbon brush 103, housing 104 and dedusting mechanism that slip ring 102 in rotating shaft 101 is engaged with the slip ring 102;
The housing 104 is located at the electromotor rotary shaft 101, slip ring 102, carbon brush 103 and the dedusting mechanism Outside, and it is provided with air inlet 108 and dust discharge chamber 109;
The dedusting mechanism is coaxially disposed with the electromotor rotary shaft 101, and is connected with the dust discharge chamber 109, with The carbon dust that the carbon brush 103 is produced is drawn in the dust discharge chamber 109.
The collector machine that the embodiment of first aspect present invention is provided, housing 104 be located at electromotor rotary shaft 101, The outside of slip ring 102, carbon brush 103 and dedusting mechanism, and it is provided with air inlet 108 and dust discharge chamber 109, dedusting mechanism and electromotor Rotary shaft 101 is coaxially disposed, and is connected with dust discharge chamber 109, and the carbon dust that carbon brush 103 is produced is drawn in dust discharge chamber 109, And then discharge the carbon dust piled up, carbon dust accumulation can be efficiently reduced, it is to avoid the obstruction failure of carbon brush 103, reduce product Fault rate, so as to reduce maintenance cost, is conducive to the competitiveness of product in market.
In one embodiment of the invention, as shown in figure 1, further, described collector machine also includes:
Device for monitoring temperature 106, the device for monitoring temperature 106 is arranged on the brush shell of the carbon brush 103, when the temperature When degree supervising device 106 monitors that the temperature of the carbon brush 103 reaches preset temperature, then report to the police.
In this embodiment, the setting of device for monitoring temperature 106, can monitor the temperature of carbon brush 103, when the temperature for monitoring When degree reaches preset temperature, report to the police, such that it is able to alarm set failure, be conducive to investigation and the removing of maintainer, carry The high reliability of product.
In one embodiment of the invention, further, the device for monitoring temperature 106 includes temperature detector, control Device processed and alarm;
The temperature detector is connected respectively with the brush shell and the controller of the carbon brush 103, and detects the carbon The temperature of brush 103;
The controller is connected with the alarm, when the temperature that the temperature detector detects carbon brush 103 reaches During preset temperature, the unlatching of the alarm is controlled.
In this embodiment, device for monitoring temperature 106 includes temperature detector, controller and alarm, is examined by temperature The connect setting of device, controller and alarm is surveyed, makes the assembling monitoring of device for monitoring temperature 106 convenient and simple.
In one embodiment of the invention, further, described collector machine also includes:
The wear monitoring device of carbon brush 103, the wear monitoring device of the carbon brush 103 is arranged on the brush shell of the carbon brush 103, For monitoring the wear extent of the carbon brush 103.
In this embodiment, the setting of the wear monitoring device of carbon brush 103 can effectively monitor the wear extent of carbon brush 103, The state of carbon brush 103 is grasped in real time, carbon brush 103 is reduced and is worn and torn use that is excessive and affecting product, improve the reliability of product Property.
In one embodiment of the invention, further, it is provided with induced duct at the air inlet 108.
In this embodiment, induced duct is provided with air inlet 108, induced duct can play guiding to air inlet 108 and make With, facilitate the entrance of ambient atmosphere, be conducive to producing the cooperation of air-flow with dedusting mechanism, and then improve the dust discharge energy of product Power.
In one embodiment of the invention, further, it is provided with induced draught fan at the air inlet 108.
In this embodiment, induced draught fan is set at air inlet 108, facilitates the entrance of ambient atmosphere, be conducive to and dedusting Mechanism produces the cooperation of air-flow, and then improves the dust discharge ability of product.
In one embodiment of the invention, as depicted in figs. 1 and 2, further, it is connected with brush on the housing 104 Frame 107, the carbon brush 103 is arranged on the brush holder 107, and is engaged with the slip ring 102.
In this embodiment, carbon brush 103 is located on brush holder 107, and is coordinated with slip ring 102, makes the letter of the fixed structure of carbon brush 103 It is single, it is safe and reliable.
In one embodiment of the invention, as shown in Figure 1 and Figure 4, further, the dedusting mechanism is dust exhausting fan 105。
In this embodiment, dedusting mechanism is dust exhausting fan 105, and dust exhausting fan 105 is purchased easily, simple structure, is reduced The production cost of product.
In one embodiment of the invention, as shown in figures 1 and 3, it is provided with access panel on the housing 104 1041, the access panel 1041 and the bolt of the housing 104.
In this embodiment, the convenient maintenance to the inner body of housing 104 of the setting of access panel 1041, improves product Maintenance efficiency.
As Figure 1-4, in one particular embodiment of the present invention, the housing 104 is located at the electromotor rotation The outside of rotating shaft 101, slip ring 102, carbon brush 103 and the dedusting mechanism, and it is provided with air inlet 108 and dust discharge chamber 109;
The dedusting mechanism is coaxially disposed with the electromotor rotary shaft 101, and is connected with the dust discharge chamber 109, with The carbon dust that the carbon brush 103 is produced is drawn in the dust discharge chamber 109.
Further, the device for monitoring temperature 106 includes temperature detector, controller and alarm;
The temperature detector is connected respectively with the brush shell and the controller of the carbon brush 103, and detects the carbon The temperature of brush 103;
The controller is connected with the alarm, when the temperature that the temperature detector detects carbon brush 103 reaches During preset temperature, the unlatching of the alarm is controlled.
Further, the wear monitoring device of the carbon brush 103 is arranged on the brush shell of the carbon brush 103, for monitoring State the wear extent of carbon brush 103.
Further, it is provided with induced draught fan at the air inlet 108.
Further, brush holder 107 is connected with the housing 104, the carbon brush 103 is arranged on the brush holder 107, and It is engaged with the slip ring 102.
Further, the dedusting mechanism is dust exhausting fan 105.
Further, access panel 1041, the access panel 1041 and the housing are provided with the housing 104 104 bolts.
The wind-driven generator that the embodiment of second aspect present invention is provided, including the collection described in any of the above-described technical scheme Electric loop device.
The wind-driven generator that the embodiment of second aspect present invention is provided, the embodiment for being provided with first aspect present invention is carried For collector machine, therefore whole beneficial effects of collector machine that embodiment with first aspect is provided, here is just Do not repeat one by one.
Hinge structure of the present invention has the beneficial effect that:
The collector machine that the present invention is provided, housing is located at the outer of electromotor rotary shaft, slip ring, carbon brush and dedusting mechanism Portion, and air inlet and dust discharge chamber are provided with, dedusting mechanism is arranged with electromotor rotating shaft coaxle, and is connected with dust discharge chamber, with The carbon dust that carbon brush is produced is drawn to into dust discharge intracavity, and then the carbon dust piled up is discharged, carbon dust accumulation can be efficiently reduced, kept away Antifouling carbon brush failure, reduces the fault rate of product, so as to reduce maintenance cost, is conducive to the competitiveness of product in market.
Finally it should be noted that:Various embodiments above only to illustrate technical scheme, rather than a limitation;To the greatest extent Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that:Its according to So the technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are entered Row equivalent;And these modifications or replacement, do not make the essence disengaging various embodiments of the present invention technology of appropriate technical solution The scope of scheme.Although additionally, it will be appreciated by those of skill in the art that some embodiments described herein are implemented including other Some included features rather than further feature in example, but the combination of the feature of different embodiments means in the present invention Within the scope of and form different embodiments.For example, in the following claims, embodiment required for protection One of arbitrarily can in any combination mode using.

Claims (10)

1. a kind of collector machine, it is characterised in that including the slip ring (102) and institute that are arranged in electromotor rotary shaft (101) State carbon brush (103), housing (104) and dedusting mechanism that slip ring (102) is engaged;
The housing (104) is located at the electromotor rotary shaft (101), slip ring (102), carbon brush (103) and the dust removal machine The outside of structure, and it is provided with air inlet (108) and dust discharge chamber (109);
The dedusting mechanism is coaxially disposed with the electromotor rotary shaft (101), and is connected with the dust discharge chamber (109), with The carbon dust that the carbon brush (103) is produced is drawn in the dust discharge chamber (109).
2. collector machine according to claim 1, it is characterised in that also include:
Device for monitoring temperature (106), the device for monitoring temperature (106) is arranged on the brush shell of the carbon brush (103), when described When device for monitoring temperature (106) monitors that the temperature of the carbon brush (103) reaches preset temperature, then report to the police.
3. collector machine according to claim 2, it is characterised in that
The device for monitoring temperature (106) is including temperature detector, controller and alarm;
The temperature detector is connected respectively with the brush shell and the controller of the carbon brush (103), and detects the carbon brush (103) temperature;
The controller is connected with the alarm, when the temperature that the temperature detector detects carbon brush (103) reach it is pre- If during temperature, controlling the unlatching of the alarm.
4. collector machine according to claim 1, it is characterised in that also include:
Carbon brush (103) wear monitoring device, carbon brush (103) wear monitoring device is arranged on the brush shell of the carbon brush (103) On, for monitoring the wear extent of the carbon brush (103).
5. collector machine according to claim 1, it is characterised in that
Air inlet (108) place is provided with induced duct.
6. collector machine according to claim 1, it is characterised in that
Air inlet (108) place is provided with induced draught fan.
7. collector machine according to claim 1, it is characterised in that
Brush holder (107) is connected with the housing (104), the carbon brush (103) is arranged on the brush holder (107), and with institute State slip ring (102) to be engaged.
8. collector machine according to any one of claim 1 to 7, it is characterised in that
The dedusting mechanism is dust exhausting fan (105).
9. collector machine according to claim 1, it is characterised in that
Access panel (1041), the access panel (1041) and the housing (104) phase spiral shell are provided with the housing (104) Connect.
10. a kind of wind-driven generator, it is characterised in that include collector ring dress as claimed in any one of claims 1-9 wherein Put.
CN201611143675.7A 2016-12-13 2016-12-13 Collecting ring apparatus and wind driven generator Pending CN106655636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611143675.7A CN106655636A (en) 2016-12-13 2016-12-13 Collecting ring apparatus and wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611143675.7A CN106655636A (en) 2016-12-13 2016-12-13 Collecting ring apparatus and wind driven generator

Publications (1)

Publication Number Publication Date
CN106655636A true CN106655636A (en) 2017-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611143675.7A Pending CN106655636A (en) 2016-12-13 2016-12-13 Collecting ring apparatus and wind driven generator

Country Status (1)

Country Link
CN (1) CN106655636A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107976628A (en) * 2017-11-22 2018-05-01 三集团有限公司北京分公司 Collector ring experimental rig, collector ring pilot system and test method
CN108953072A (en) * 2018-06-26 2018-12-07 明阳智慧能源集团股份公司 A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning
CN110208695A (en) * 2019-06-24 2019-09-06 三一重能有限公司 A kind of collector ring fault monitoring method and device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203533A (en) * 1986-02-28 1987-09-08 Hitachi Ltd Rotor structure of ac generator for vehicle
CN202309385U (en) * 2011-11-01 2012-07-04 西安盾安电气有限公司 Windmill generator cooler
CN103733445A (en) * 2011-08-16 2014-04-16 迪纳摩博斯特法布里肯公司 Contact brush holder
CN204118439U (en) * 2014-08-27 2015-01-21 台州市富达机电有限公司 Carbon brush holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62203533A (en) * 1986-02-28 1987-09-08 Hitachi Ltd Rotor structure of ac generator for vehicle
CN103733445A (en) * 2011-08-16 2014-04-16 迪纳摩博斯特法布里肯公司 Contact brush holder
CN202309385U (en) * 2011-11-01 2012-07-04 西安盾安电气有限公司 Windmill generator cooler
CN204118439U (en) * 2014-08-27 2015-01-21 台州市富达机电有限公司 Carbon brush holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107976628A (en) * 2017-11-22 2018-05-01 三集团有限公司北京分公司 Collector ring experimental rig, collector ring pilot system and test method
CN108953072A (en) * 2018-06-26 2018-12-07 明阳智慧能源集团股份公司 A kind of unit for megawatt double-fed wind generators group power generation owner's carbon brush burns method for early warning
CN110208695A (en) * 2019-06-24 2019-09-06 三一重能有限公司 A kind of collector ring fault monitoring method and device
CN110208695B (en) * 2019-06-24 2021-06-08 三一重能股份有限公司 Collecting ring fault monitoring method and device

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Address after: No. 9, seat No. B, No. 9, super front road, Beijing science and Technology Park, Beijing

Applicant after: Sany Group Co Ltd Beijing branch

Address before: No. 9, seat No. B, No. 9, super front road, Beijing science and Technology Park, Beijing

Applicant before: Beijing Sany Electrical System Co., Ltd.

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