GB1115963A - Circuit arrangement for sensing overtemperatures - Google Patents

Circuit arrangement for sensing overtemperatures

Info

Publication number
GB1115963A
GB1115963A GB3712566A GB3712566A GB1115963A GB 1115963 A GB1115963 A GB 1115963A GB 3712566 A GB3712566 A GB 3712566A GB 3712566 A GB3712566 A GB 3712566A GB 1115963 A GB1115963 A GB 1115963A
Authority
GB
United Kingdom
Prior art keywords
winding
contacts
resistors
magnet
energized
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
GB3712566A
Inventor
Gabor Dani
Istvan Szabo
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.)
VILLAMOS BERENDEZES ES KESZULEK MUVEK
Original Assignee
VILLAMOS BERENDEZES ES KESZULEK MUVEK
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 VILLAMOS BERENDEZES ES KESZULEK MUVEK filed Critical VILLAMOS BERENDEZES ES KESZULEK MUVEK
Publication of GB1115963A publication Critical patent/GB1115963A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • 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)
  • Thermally Actuated Switches (AREA)

Abstract

1,115,963. Reed relays. VILLAMOS BERENDEZES ES KESZULEK MUVEK. 18 Aug., 1966 [16 Nov., 1965], No. 37125/66. Heading H1N. [Also in Division H2] A protective arrangement, e.g. for an electric motor, comprises a sealed magnetic reed contact device 30c having a control winding 35 connected in circuit with temperature responsive resistors (not shown), and a permanent magnet 31 which may be displaced against the action of biasing means 33 to close the reed contacts 45. Depending on the adjustment of a screw 34, the contacts may open or remain closed when the magnet is restored to its initial position if the winding 35 is not energized. Thus in an arrangement, Fig. 1 (not shown), using negative temperature coefficient resistors in a bridge circuit across which the winding 35 is connected, the contacts 45 are normally held closed by the magnet and are opened when the resistance of the resistors falls to unbalance the bridge to cause the winding to be energized and to oppose the magnet. In Fig. 3 (not shown) the contacts 45 are normally maintained closed by the winding 35 which is connected in series with positive temperature coefficient resistors, the contacts 45 opening when the current in the winding falls due to increase in resistance of the resistors.
GB3712566A 1965-11-16 1966-08-18 Circuit arrangement for sensing overtemperatures Expired GB1115963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUDA000217 1965-11-16

Publications (1)

Publication Number Publication Date
GB1115963A true GB1115963A (en) 1968-06-06

Family

ID=10994864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3712566A Expired GB1115963A (en) 1965-11-16 1966-08-18 Circuit arrangement for sensing overtemperatures

Country Status (7)

Country Link
AT (1) AT294956B (en)
CH (1) CH449105A (en)
CS (1) CS159727B2 (en)
DE (1) DE1513095B2 (en)
FR (1) FR1490182A (en)
GB (1) GB1115963A (en)
SE (1) SE338613C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58159700A (en) * 1982-03-16 1983-09-22 Mitsubishi Electric Corp Output controller for generator
DE4014629A1 (en) * 1990-05-08 1991-11-14 Abb Patent Gmbh SINGLE OR MULTIPOLE MOTOR PROTECTION RELAY OR OVERCURRENT RELAY
DE9107139U1 (en) * 1991-06-10 1992-07-16 Hofsäss, Peter, 7530 Pforzheim Temperature protection device
DE102005048529B4 (en) * 2005-10-07 2008-04-10 Metabowerke Gmbh Motor protection circuit
ATE501539T1 (en) * 2008-10-13 2011-03-15 Siemens Ag DEVICE FOR MONITORING THE TEMPERATURE OF A MULTIPHASE CURRENT WINDING OF AN ELECTRICAL MACHINE
DE102013107819A1 (en) * 2013-07-22 2015-01-22 Ebm-Papst Mulfingen Gmbh & Co. Kg "Circuit for thermal protection and power control of electric motors"

Also Published As

Publication number Publication date
CH449105A (en) 1967-12-31
SE338613B (en) 1971-09-13
CS159727B2 (en) 1975-01-31
AT294956B (en) 1971-12-10
SE338613C (en) 1973-08-06
FR1490182A (en) 1967-07-28
DE1513095B2 (en) 1971-01-28
DE1513095A1 (en) 1969-07-31

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