ES2106662A1 - System of assessing the commutation of direct current machines. - Google Patents
System of assessing the commutation of direct current machines.Info
- Publication number
- ES2106662A1 ES2106662A1 ES09401875A ES9401875A ES2106662A1 ES 2106662 A1 ES2106662 A1 ES 2106662A1 ES 09401875 A ES09401875 A ES 09401875A ES 9401875 A ES9401875 A ES 9401875A ES 2106662 A1 ES2106662 A1 ES 2106662A1
- Authority
- ES
- Spain
- Prior art keywords
- sparks
- machines
- pulses
- commutation
- assessing
- 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
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
System of assessing the commutation of direct current machines, uses a special Aerial 1 located outside the machine for detecting sparks, which picks up the electromagnetic radiation caused by the sparks. The aerial signal, damped high-frequency pulses, is amplified in the Amplifier 2 whose output goes to a Comparator 3, which selects the pulses greater than a particular level (adjustable) and forms them giving binary pulses at its output, these are conveyed to a Counter 4 whose numeric output in the Indicator 5 shows the level of sparking according to a suitable code (e.g. 0 - no sparks 100 - maximum acceptable in service). The sparks produce heavy wear on the machines (commutator and brushes) and can cause serious damage (arcing or "flashing") between brushes. The invention, applied to traction motors or to the exciters of hydroelectric generating sets will increase the reliability of these machines, reducing maintenance costs and enabling true Predictive Maintenance to be achieved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9401875A ES2106662B1 (en) | 1994-08-27 | 1994-08-27 | ASSESSMENT SYSTEM FOR THE SWITCHING OF DIRECT CURRENT MACHINES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9401875A ES2106662B1 (en) | 1994-08-27 | 1994-08-27 | ASSESSMENT SYSTEM FOR THE SWITCHING OF DIRECT CURRENT MACHINES. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2106662A1 true ES2106662A1 (en) | 1997-11-01 |
ES2106662B1 ES2106662B1 (en) | 1998-06-01 |
Family
ID=8287356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9401875A Expired - Lifetime ES2106662B1 (en) | 1994-08-27 | 1994-08-27 | ASSESSMENT SYSTEM FOR THE SWITCHING OF DIRECT CURRENT MACHINES. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2106662B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2481657A (en) * | 2010-07-02 | 2012-01-04 | Bombardier Transp Gmbh | Predicting flashovers in electrical machines from brush wear |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3041091A1 (en) * | 1979-10-31 | 1981-05-14 | Elin-Union AG für elektrische Industrie, Wien | Commutation regulator for DC machine - uses detector close to brushes with inter-pole control loop to give minimum sparking |
JPS5681063A (en) * | 1979-12-03 | 1981-07-02 | Hitachi Ltd | Spark monitoring device for current collector |
SU884044A1 (en) * | 1980-03-20 | 1981-11-23 | Красноуральский Медеплавильный Комбинат Им.Серго Орджоникидзе | Device for monitoring spark-formation on electric machine commutator |
JPS5749870A (en) * | 1980-09-09 | 1982-03-24 | Toshiba Corp | Monitoring device for brush sparking |
US4577151A (en) * | 1981-07-14 | 1986-03-18 | Hitachi, Ltd. | Spark monitor device for current collectors |
JPS61277344A (en) * | 1985-05-08 | 1986-12-08 | Aichi Electric Co Ltd | Cleaner for commutator |
RU2071076C1 (en) * | 1993-11-16 | 1996-12-27 | Всероссийский научно-исследовательский институт электромашиностроения | Gear for diagnostics of brush-contact unit of electric machine |
-
1994
- 1994-08-27 ES ES9401875A patent/ES2106662B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3041091A1 (en) * | 1979-10-31 | 1981-05-14 | Elin-Union AG für elektrische Industrie, Wien | Commutation regulator for DC machine - uses detector close to brushes with inter-pole control loop to give minimum sparking |
JPS5681063A (en) * | 1979-12-03 | 1981-07-02 | Hitachi Ltd | Spark monitoring device for current collector |
SU884044A1 (en) * | 1980-03-20 | 1981-11-23 | Красноуральский Медеплавильный Комбинат Им.Серго Орджоникидзе | Device for monitoring spark-formation on electric machine commutator |
JPS5749870A (en) * | 1980-09-09 | 1982-03-24 | Toshiba Corp | Monitoring device for brush sparking |
US4577151A (en) * | 1981-07-14 | 1986-03-18 | Hitachi, Ltd. | Spark monitor device for current collectors |
JPS61277344A (en) * | 1985-05-08 | 1986-12-08 | Aichi Electric Co Ltd | Cleaner for commutator |
RU2071076C1 (en) * | 1993-11-16 | 1996-12-27 | Всероссийский научно-исследовательский институт электромашиностроения | Gear for diagnostics of brush-contact unit of electric machine |
Non-Patent Citations (6)
Title |
---|
BASE DE DATOS WPI EN EPOQUE, Semana 8238, Derwent Publ. Ltd., Londres & SU 884044 A1 (KRASNOURALSK COPPER) 23.11.81 * |
BASE DE DATOS WPI EN EPOQUE, Semana 9423, Derwent Publ. Ltd., Londres & SU 1805531 A1 (LEDOVSKOI, I.S.) 30.03.93 * |
BASE DE DATOS WPI EN EPOQUE, Semana 9733, Derwent Publ. Ltd., Londres & RU 2071076 C1 (ELEC. MACHINES RESEARCH INSTITUTE) 27.12.96 * |
PATENT ABSTRACTS OF JAPAN, CD-ROM PAJ n‘ 52, G01R, 1976-1993 & JP 57049870 A (TOSHIBA CORP.) 24.03.82 * |
PATENT ABSTRACTS OF JAPAN, CD-ROM PAJ n‘ 88, H02K-P, 1976-1986 (1/2) & JP 56081063 A (HITACHI LTD.) 02.07.81 * |
PATENT ABSTRACTS OF JAPAN, CD-ROM PAJ n‘ 88, H02K-P, 1976-1986 (1/2) & JP 61277344 A (AICHI ELECTRIC CO. LTD.) 08.12.86 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2481657A (en) * | 2010-07-02 | 2012-01-04 | Bombardier Transp Gmbh | Predicting flashovers in electrical machines from brush wear |
Also Published As
Publication number | Publication date |
---|---|
ES2106662B1 (en) | 1998-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19971101 Kind code of ref document: A1 Effective date: 19971101 |