GB416772A - Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating - Google Patents

Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating

Info

Publication number
GB416772A
GB416772A GB124534A GB124534A GB416772A GB 416772 A GB416772 A GB 416772A GB 124534 A GB124534 A GB 124534A GB 124534 A GB124534 A GB 124534A GB 416772 A GB416772 A GB 416772A
Authority
GB
United Kingdom
Prior art keywords
circuit
overloading
overheating
breaking
event
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
GB124534A
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.)
KAETHE STEIN
Original Assignee
KAETHE STEIN
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 KAETHE STEIN filed Critical KAETHE STEIN
Priority to GB124534A priority Critical patent/GB416772A/en
Publication of GB416772A publication Critical patent/GB416772A/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
    • H02H7/0852—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 directly responsive to abnormal temperature by using a temperature sensor

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Induction Machinery (AREA)

Abstract

416,772. Protective cut-out arrangements. STEIN, (nÚe WENSKE), K., 1, Bahnplatz, Sorau, Lausitz, Nieder, Germany. Jan. 12, 1934, No. 1245. [Class 38 (v).] For disconnecting a three-phase motor from the line on the occurrence of excess temperatures in the motor windings, bimetallic switches f are arranged directly in the windings a, c of two of the phases of -the motor. If the temperature in the windings becomes excessive, the switches close and complete the circuit of a relay m for opening the main circuit-breaker.
GB124534A 1934-01-12 1934-01-12 Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating Expired GB416772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB124534A GB416772A (en) 1934-01-12 1934-01-12 Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB124534A GB416772A (en) 1934-01-12 1934-01-12 Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating

Publications (1)

Publication Number Publication Date
GB416772A true GB416772A (en) 1934-09-20

Family

ID=9718632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB124534A Expired GB416772A (en) 1934-01-12 1934-01-12 Safety device for three-phase current motors for breaking the circuit in the event of overloading or overheating

Country Status (1)

Country Link
GB (1) GB416772A (en)

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