BR0305533A - Electric motor protective device - Google Patents

Electric motor protective device

Info

Publication number
BR0305533A
BR0305533A BR0305533-7A BR0305533A BR0305533A BR 0305533 A BR0305533 A BR 0305533A BR 0305533 A BR0305533 A BR 0305533A BR 0305533 A BR0305533 A BR 0305533A
Authority
BR
Brazil
Prior art keywords
power switches
electric motor
protective device
motor protective
temperature
Prior art date
Application number
BR0305533-7A
Other languages
Portuguese (pt)
Inventor
Marcos Guilherme Schwarz
Luiz Magalhaes Medeiros Neto
Original Assignee
Brasil Compressores Sa
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 Brasil Compressores Sa filed Critical Brasil Compressores Sa
Priority to BR0305533-7A priority Critical patent/BR0305533A/en
Priority to PCT/BR2004/000220 priority patent/WO2005046042A1/en
Publication of BR0305533A publication Critical patent/BR0305533A/en

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
    • H02P1/44—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/002—Structural combination of a time delay electrothermal relay with an electrothermal protective relay, e.g. a start relay

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

"DISPOSITIVO PROTETOR DE MOTOR ELéTRICO". Compreendendo: um estator tendo um enrolamento de marcha (11) e um enrolamento de partida (12); uma fonte (F) de alimentação de corrente aos referidos enrolamentos de marcha (11) e de partida (12); chaves de potência (60), cada uma conectando um dos enrolamentos de marcha (11) e de partida (12) à fonte (F), quando em uma condição fechada, dito dispositivo compreendendo pelo menos uma chave térmica (70) conectando operativa e eletricamente a fonte (F) às chaves de potência (60) e sendo termicamente acoplada a essas últimas, de modo a detectar a temperatura em ditas chaves de potência (60) e a interromper a corrente a essas últimas, quando a temperatura em qualquer uma de ditas chaves de potência (60) atingir um determinado valor predefinido e superior a um respectivo valor previamente estabelecido de temperatura máxima de funcionamento das chaves de potência (60)."ELECTRIC MOTOR PROTECTIVE DEVICE". Comprising: a stator having a travel winding (11) and a starting winding (12); a power supply (F) for said running (11) and starting (12) windings; power switches (60), each connecting one of the start (11) and start (12) windings to the source (F), when in a closed condition, said device comprising at least one thermal switch (70) operatively connecting and electrically source (F) to the power switches (60) and being thermally coupled thereto so as to detect the temperature in said power switches (60) and to interrupt the current to those latter when the temperature in either said power switches (60) reach a predefined value and greater than a predetermined value of the maximum operating temperature of the power switches (60).

BR0305533-7A 2003-11-11 2003-11-11 Electric motor protective device BR0305533A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR0305533-7A BR0305533A (en) 2003-11-11 2003-11-11 Electric motor protective device
PCT/BR2004/000220 WO2005046042A1 (en) 2003-11-11 2004-11-10 Protecting device for an electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0305533-7A BR0305533A (en) 2003-11-11 2003-11-11 Electric motor protective device

Publications (1)

Publication Number Publication Date
BR0305533A true BR0305533A (en) 2005-07-12

Family

ID=34558260

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0305533-7A BR0305533A (en) 2003-11-11 2003-11-11 Electric motor protective device

Country Status (2)

Country Link
BR (1) BR0305533A (en)
WO (1) WO2005046042A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1966880T3 (en) * 2005-12-29 2011-09-19 Arcelik As Engine
US20160056622A1 (en) * 2014-08-20 2016-02-25 Regal Beloit America, Inc. Thermal protection device and method for protecting a motor
WO2016053679A1 (en) * 2014-10-01 2016-04-07 Carrier Corporation Compressor motor overload detection
US10823407B2 (en) 2016-09-28 2020-11-03 Regal Beloit America, Inc. Motor controller for blower in gas-burning appliance and method of use
US10985608B2 (en) 2016-12-13 2021-04-20 General Electric Company Back-up power system for a component and method of assembling same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9300953A (en) * 1993-04-14 1994-11-22 Brasil Compressores Sa Control circuit for cooling system
ITBS20020002A1 (en) * 2002-01-15 2003-07-15 Grisoni Massimo ELECTRONIC SWITCH FOR ALTERNATING VOLTAGE ELECTRICAL SYSTEMS

Also Published As

Publication number Publication date
WO2005046042A1 (en) 2005-05-19

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Legal Events

Date Code Title Description
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired