GB520652A - Improvements in or relating to spark quenching arrangements for rotating electric machinery - Google Patents

Improvements in or relating to spark quenching arrangements for rotating electric machinery

Info

Publication number
GB520652A
GB520652A GB3113638A GB3113638A GB520652A GB 520652 A GB520652 A GB 520652A GB 3113638 A GB3113638 A GB 3113638A GB 3113638 A GB3113638 A GB 3113638A GB 520652 A GB520652 A GB 520652A
Authority
GB
United Kingdom
Prior art keywords
relating
rotating electric
segments
electric machinery
spark quenching
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.)
Expired
Application number
GB3113638A
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric 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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB3113638A priority Critical patent/GB520652A/en
Publication of GB520652A publication Critical patent/GB520652A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/028—Suppressors associated with the rotor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Dc Machiner (AREA)

Abstract

520,652. Commutators for dynamo-electric machines; improving commutation. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SAVILLE, W. Oct. 27, 1938, No. 31136. [Class 35] To prevent sparking all the segments of a commutator are permanently bridged by a material the resistance of which decreases with increased voltage, such as a mixture of silicon carbide with carbon, tungsten or molybdenum. The material may be formed as a disc' or segments at the end of the commutator, and it may be sprayed with metal to facilitate connection, or it may replace same or all of the insulation between the segments.
GB3113638A 1938-10-27 1938-10-27 Improvements in or relating to spark quenching arrangements for rotating electric machinery Expired GB520652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3113638A GB520652A (en) 1938-10-27 1938-10-27 Improvements in or relating to spark quenching arrangements for rotating electric machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3113638A GB520652A (en) 1938-10-27 1938-10-27 Improvements in or relating to spark quenching arrangements for rotating electric machinery

Publications (1)

Publication Number Publication Date
GB520652A true GB520652A (en) 1940-04-30

Family

ID=10318549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3113638A Expired GB520652A (en) 1938-10-27 1938-10-27 Improvements in or relating to spark quenching arrangements for rotating electric machinery

Country Status (1)

Country Link
GB (1) GB520652A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089868B (en) * 1957-10-19 1960-09-29 Philips Patentverwaltung Arrangement for suppressing spark formation in electrical collector machines
JPS4842566Y1 (en) * 1968-08-29 1973-12-10
JPS537372Y1 (en) * 1970-11-11 1978-02-24
GB2207292A (en) * 1987-07-09 1989-01-25 Johnson Electric Ind Mfg Electric motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089868B (en) * 1957-10-19 1960-09-29 Philips Patentverwaltung Arrangement for suppressing spark formation in electrical collector machines
JPS4842566Y1 (en) * 1968-08-29 1973-12-10
JPS537372Y1 (en) * 1970-11-11 1978-02-24
GB2207292A (en) * 1987-07-09 1989-01-25 Johnson Electric Ind Mfg Electric motor

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