[go: up one dir, main page]

CA1187591A - Solid-state load protection system having electronic simulation of motor heating - Google Patents

Solid-state load protection system having electronic simulation of motor heating

Info

Publication number
CA1187591A
CA1187591A CA000401416A CA401416A CA1187591A CA 1187591 A CA1187591 A CA 1187591A CA 000401416 A CA000401416 A CA 000401416A CA 401416 A CA401416 A CA 401416A CA 1187591 A CA1187591 A CA 1187591A
Authority
CA
Canada
Prior art keywords
load
current
voltage
terminal
trip
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
CA000401416A
Other languages
English (en)
French (fr)
Inventor
Robert T. Elms
Ernest F. Conroy, Jr.
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA1187591A publication Critical patent/CA1187591A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
CA000401416A 1981-04-27 1982-04-22 Solid-state load protection system having electronic simulation of motor heating Expired CA1187591A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25809281A 1981-04-27 1981-04-27
US258,092 1981-04-27

Publications (1)

Publication Number Publication Date
CA1187591A true CA1187591A (en) 1985-05-21

Family

ID=22979069

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000401416A Expired CA1187591A (en) 1981-04-27 1982-04-22 Solid-state load protection system having electronic simulation of motor heating

Country Status (12)

Country Link
JP (1) JPS57183214A (es)
AU (1) AU560789B2 (es)
BE (1) BE892997A (es)
BR (1) BR8202362A (es)
CA (1) CA1187591A (es)
CH (1) CH658756A5 (es)
DE (1) DE3215180A1 (es)
ES (1) ES8306930A1 (es)
FR (1) FR2504748B1 (es)
GB (1) GB2097615B (es)
IE (1) IE52772B1 (es)
ZA (1) ZA822618B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730829C2 (de) * 1987-09-14 1997-02-06 Siemens Ag Überlastschutz für den Erregerkreis einer Synchronmaschine
AU612195B2 (en) * 1987-11-11 1991-07-04 Dega Research Pty. Ltd. Method and apparatus for protecting a pump motor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1407271A (fr) * 1964-06-20 1965-07-30 Electronique Et D Automatique Dispositif de protection des circuits électriques
US3875464A (en) * 1973-10-10 1975-04-01 Westinghouse Electric Corp Solid state overload relay
FR2432211A1 (fr) * 1978-07-24 1980-02-22 Simplex Appareils Declencheur a " phases associees " pour disjoncteur de protection de transformateur

Also Published As

Publication number Publication date
GB2097615A (en) 1982-11-03
ES511687A0 (es) 1983-06-01
ES8306930A1 (es) 1983-06-01
GB2097615B (en) 1985-06-12
IE820835L (en) 1982-10-27
BE892997A (fr) 1982-10-27
AU560789B2 (en) 1987-04-16
CH658756A5 (de) 1986-11-28
IE52772B1 (en) 1988-02-17
BR8202362A (pt) 1983-04-05
FR2504748A1 (fr) 1982-10-29
AU8266182A (en) 1982-11-04
FR2504748B1 (fr) 1986-04-18
ZA822618B (en) 1983-04-27
DE3215180A1 (de) 1982-11-11
JPS57183214A (en) 1982-11-11

Similar Documents

Publication Publication Date Title
CA1187592A (en) Solid-state load protection system having a test feature
US4347540A (en) Solid-state load protection system having ground fault sensing
CA1160330A (en) Solid-state load protection system having an improved inverse time delay circuit
CA1258489A (en) Solid-state trip device with test circuit for an electrical circuit breaker
US4580186A (en) Grounding and ground fault detection circuits
JP5230432B2 (ja) 三相電力系統用漏電遮断器システム
Bridger High-resistance grounding
US3924160A (en) Circuit breaker with detachably connected fault simulator
CZ288934B6 (cs) Detektor pro monitorování integrity uzemnění elektrického zařízení
CA1160331A (en) Solid-state load protection system having loss of phase sensing
CA1131312A (en) Voltage-unbalance detector for polyphase electrical systems
CA1147372A (en) Vacuum apparatus having protective device for operator and method
CA1194105A (en) Open circuit current transformer protection circuit
CA1101065A (en) Apparatus for sensing a high phase signal from a multi-phase ac load circuit
CA2268575C (en) Circuit breaker
CA1185651A (en) Ground isolation monitoring apparatus having a protective circuit
US3852660A (en) Circuit breaker fault simulator
GB1594112A (en) Circuit breaker apparatus including asymetrical fault detector
CA1187591A (en) Solid-state load protection system having electronic simulation of motor heating
US3743889A (en) Polyphase electric system protective apparatus
CA1148248A (en) Single-phase fault detecting circuit breaker
RU2221325C2 (ru) Станция управления асинхронным двигателем
RU2050659C1 (ru) Электроустановка с устройством защитного отключения от сети переменного напряжения
KR0151163B1 (ko) 전동기 보호용 계전기
Bachur Analyzing Transformer Differential Protection

Legal Events

Date Code Title Description
MKEX Expiry