GB546043A - Improvements in safety control devices for the protection of delta connected alternating current motors - Google Patents

Improvements in safety control devices for the protection of delta connected alternating current motors

Info

Publication number
GB546043A
GB546043A GB509441A GB509441A GB546043A GB 546043 A GB546043 A GB 546043A GB 509441 A GB509441 A GB 509441A GB 509441 A GB509441 A GB 509441A GB 546043 A GB546043 A GB 546043A
Authority
GB
United Kingdom
Prior art keywords
protection
alternating current
control devices
safety control
current motors
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
GB509441A
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.)
LAURENCE KRALL SARJEANT
Original Assignee
LAURENCE KRALL SARJEANT
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 LAURENCE KRALL SARJEANT filed Critical LAURENCE KRALL SARJEANT
Priority to GB509441A priority Critical patent/GB546043A/en
Publication of GB546043A publication Critical patent/GB546043A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

546,043. Protective cut-out arrangements. SARJEANT, L. K. April 19, 1941, No. 5094. [Class 38 (v)] Delta-connected A.C. motors are protected against single-phasing by connecting the overload coils 4 in series with the windings instead of in the line, the coils being adapted to open the direct-on starter contacts 3.
GB509441A 1941-04-19 1941-04-19 Improvements in safety control devices for the protection of delta connected alternating current motors Expired GB546043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB509441A GB546043A (en) 1941-04-19 1941-04-19 Improvements in safety control devices for the protection of delta connected alternating current motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB509441A GB546043A (en) 1941-04-19 1941-04-19 Improvements in safety control devices for the protection of delta connected alternating current motors

Publications (1)

Publication Number Publication Date
GB546043A true GB546043A (en) 1942-06-24

Family

ID=9789636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB509441A Expired GB546043A (en) 1941-04-19 1941-04-19 Improvements in safety control devices for the protection of delta connected alternating current motors

Country Status (1)

Country Link
GB (1) GB546043A (en)

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