CA2365474A1 - Automatic flashover protection for locomotive traction motors - Google Patents

Automatic flashover protection for locomotive traction motors Download PDF

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Publication number
CA2365474A1
CA2365474A1 CA002365474A CA2365474A CA2365474A1 CA 2365474 A1 CA2365474 A1 CA 2365474A1 CA 002365474 A CA002365474 A CA 002365474A CA 2365474 A CA2365474 A CA 2365474A CA 2365474 A1 CA2365474 A1 CA 2365474A1
Authority
CA
Canada
Prior art keywords
flashover
traction motors
automatic
locomotive traction
alternator
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
Application number
CA002365474A
Other languages
French (fr)
Other versions
CA2365474C (en
Inventor
Ronald Barry Bailey
Herbert Joseph Brown
Myron Lee Smith
Edgar Thomas Balch
Roger D. Huczko
Joseph Andrew Laukaitis
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.)
General Electric Co
Original Assignee
Ronald Barry Bailey
Herbert Joseph Brown
Myron Lee Smith
Edgar Thomas Balch
Roger D. Huczko
Joseph Andrew Laukaitis
General Electric Company
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
Priority claimed from US07/584,566 external-priority patent/US5168416A/en
Application filed by Ronald Barry Bailey, Herbert Joseph Brown, Myron Lee Smith, Edgar Thomas Balch, Roger D. Huczko, Joseph Andrew Laukaitis, General Electric Company filed Critical Ronald Barry Bailey
Publication of CA2365474A1 publication Critical patent/CA2365474A1/en
Application granted granted Critical
Publication of CA2365474C publication Critical patent/CA2365474C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Flashover protection is provided for a locomotive propulsion system including a plurality of d-c traction motors (15, 16) each having a commutator (15A) subject to flashovers. A flashover detector (32) is provided for producing a fault signal in case a flashover occurs. In response to the fault signal, a solid-state controllable electric valve (71) connected between the excitation current source (17) and the alternator field winding (12f) is changed to non-conducting state, whereupon the magnitude of excitation current in the alternator field winding (12f) is rapidly reduced toward zero and the alternator's output current is correspondingly decreased whenever a flashover occurs.
CA002365474A 1990-09-18 1991-08-09 Automatic flashover protection for locomotive traction motors Expired - Lifetime CA2365474C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/584,566 US5168416A (en) 1990-09-18 1990-09-18 Automatic flashover protection for locomotive traction motors
US584,566 1990-09-18
CA002071920A CA2071920C (en) 1990-09-18 1991-08-09 Automatic flashover protection for locomotive traction motors

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002071920A Division CA2071920C (en) 1990-09-18 1991-08-09 Automatic flashover protection for locomotive traction motors

Publications (2)

Publication Number Publication Date
CA2365474A1 true CA2365474A1 (en) 1992-04-02
CA2365474C CA2365474C (en) 2005-03-15

Family

ID=25675255

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002365474A Expired - Lifetime CA2365474C (en) 1990-09-18 1991-08-09 Automatic flashover protection for locomotive traction motors

Country Status (1)

Country Link
CA (1) CA2365474C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115247514A (en) * 2021-04-26 2022-10-28 大陆泰密克微电子有限责任公司 Method for determining and specifying the necessary closing speed of a motor-operated vehicle door when the initial closing stop is reached
US11993971B2 (en) 2021-04-26 2024-05-28 Conti Temic Microelectronic Gmbh Method for determining and specifying the necessary closing speed of a motor-operated vehicle door at the moment of reaching an initial closure detent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115247514A (en) * 2021-04-26 2022-10-28 大陆泰密克微电子有限责任公司 Method for determining and specifying the necessary closing speed of a motor-operated vehicle door when the initial closing stop is reached
US11993971B2 (en) 2021-04-26 2024-05-28 Conti Temic Microelectronic Gmbh Method for determining and specifying the necessary closing speed of a motor-operated vehicle door at the moment of reaching an initial closure detent

Also Published As

Publication number Publication date
CA2365474C (en) 2005-03-15

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