ES8303708A1 - "procedimiento para la vigilancia de la corriente efectiva en maquinas de corriente continua para impedir las sobrecargas". - Google Patents

"procedimiento para la vigilancia de la corriente efectiva en maquinas de corriente continua para impedir las sobrecargas".

Info

Publication number
ES8303708A1
ES8303708A1 ES510277A ES510277A ES8303708A1 ES 8303708 A1 ES8303708 A1 ES 8303708A1 ES 510277 A ES510277 A ES 510277A ES 510277 A ES510277 A ES 510277A ES 8303708 A1 ES8303708 A1 ES 8303708A1
Authority
ES
Spain
Prior art keywords
electrical machines
current
square
overload monitor
quantity representing
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
ES510277A
Other languages
English (en)
Other versions
ES510277A0 (es
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of ES8303708A1 publication Critical patent/ES8303708A1/es
Publication of ES510277A0 publication Critical patent/ES510277A0/es
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • 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
    • H02H7/0811—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 for DC motors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Control Of Direct Current Motors (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fuses (AREA)

Abstract

DISPOSITIVO PARA IMPEDIR LAS SOBRECARGAS EN MAQUINAS DE CORRIENTE CONTINUA. CONSISTE EN UN CIRCUITO (1) QUE ELEVA AL CUADRADO EL VALOR DE LA CORRIENTE EFECTIVA (I<I<S<T); UN CIRCUITO (3) QUE RESTA A DICHO VALOR AL CUADRADO DE LA CORRIENTE NOMINAL, QUE SUMINISTRA UNA FUENTE DE TENSION CONSTANTE (2), Y EL RESULTADO ES INTRODUCIDO EN UN CIRCUITO INTEGRADOR (4) CON SU CORRESPONDIENTE VISUALIZADOR (7). EL RESULTADO DE LA INTEGRACION ES COMPARADO CON UN VALOR UMBRAL, MEDIANTE UN APARATO ELECTRONICO DE VIGILANCIA (5).
ES510277A 1981-05-25 1982-03-10 "procedimiento para la vigilancia de la corriente efectiva en maquinas de corriente continua para impedir las sobrecargas". Granted ES510277A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3121779A DE3121779C2 (de) 1981-05-25 1981-05-25 Verfahren zur Überwachung des Effektivstroms bei Gleichstrommaschinen zur Verhinderung einer Überlast und elektronische Überlastsicherung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
ES8303708A1 true ES8303708A1 (es) 1983-02-01
ES510277A0 ES510277A0 (es) 1983-02-01

Family

ID=6133693

Family Applications (1)

Application Number Title Priority Date Filing Date
ES510277A Granted ES510277A0 (es) 1981-05-25 1982-03-10 "procedimiento para la vigilancia de la corriente efectiva en maquinas de corriente continua para impedir las sobrecargas".

Country Status (10)

Country Link
JP (1) JPS57199492A (es)
BE (1) BE893263A (es)
CS (1) CS233724B2 (es)
DD (1) DD202082A5 (es)
DE (1) DE3121779C2 (es)
ES (1) ES510277A0 (es)
FR (1) FR2506535A1 (es)
GB (1) GB2101430B (es)
IT (1) IT1218315B (es)
RO (1) RO83801B (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141884A (en) * 1983-05-18 1985-01-03 R L & D Limited Electric water heaters
GB2154813A (en) * 1984-02-28 1985-09-11 Dolphin Showers Limited Electric water heaters
DE3914312A1 (de) * 1989-04-29 1990-10-31 Telefunken Electronic Gmbh Schaltung zum erkennen der ueberbelastung eines motors
DE102005038225A1 (de) 2005-08-12 2007-02-15 Robert Bosch Gmbh Verfahren und Vorrichtung für eine Überlastdetektion bei Handwerkzeugen
DE102007013551A1 (de) 2007-03-19 2008-09-25 Siemens Ag Verfahren zum selbsttätigen Einstellen eines einen Überstromauslöser aufweisenden Schutzgerätes, insbesondere eines Niederspannungsleistungsschalters
US10965240B2 (en) * 2018-08-30 2021-03-30 Texas Instruments Incorporated Method and circuit for detecting motor winding over temperature

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2630407A1 (de) * 1976-07-06 1978-01-12 Siemens Ag Einrichtung zur ueberwachung der erwaermung eines stromdurchflossenen elektrischen geraetes
JPS55157927A (en) * 1979-05-24 1980-12-09 Fuji Electric Co Ltd Electronic overload protecting device
DE2922197A1 (de) * 1979-05-31 1980-12-04 Hirschmann Radiotechnik Selbsttaetige ueberlast-abschalteinrichtung fuer gleichstrom-motorantriebe
US4291355A (en) * 1979-07-30 1981-09-22 General Electric Company Programmable overload circuit

Also Published As

Publication number Publication date
DE3121779A1 (de) 1982-12-23
GB2101430B (en) 1985-01-09
DD202082A5 (de) 1983-08-24
CS233724B2 (en) 1985-03-14
BE893263A (fr) 1982-09-16
RO83801A (ro) 1984-04-02
FR2506535A1 (es) 1982-11-26
RO83801B (ro) 1984-04-30
JPS57199492A (en) 1982-12-07
ES510277A0 (es) 1983-02-01
IT8220165A0 (it) 1982-03-15
DE3121779C2 (de) 1984-02-02
IT1218315B (it) 1990-04-12
GB2101430A (en) 1983-01-12

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981103