CA2034380A1 - Circuit de protection pour reseau polyphase - Google Patents

Circuit de protection pour reseau polyphase

Info

Publication number
CA2034380A1
CA2034380A1 CA 2034380 CA2034380A CA2034380A1 CA 2034380 A1 CA2034380 A1 CA 2034380A1 CA 2034380 CA2034380 CA 2034380 CA 2034380 A CA2034380 A CA 2034380A CA 2034380 A1 CA2034380 A1 CA 2034380A1
Authority
CA
Canada
Prior art keywords
circuit
phase
comparator
input
phases
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.)
Abandoned
Application number
CA 2034380
Other languages
English (en)
Inventor
John James Dougherty
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of CA2034380A1 publication Critical patent/CA2034380A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H02H3/253—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage for multiphase applications, e.g. phase interruption

Landscapes

  • Emergency Protection Circuit Devices (AREA)
CA 2034380 1990-01-29 1991-01-17 Circuit de protection pour reseau polyphase Abandoned CA2034380A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47133690A 1990-01-29 1990-01-29
US471,336 1990-01-29

Publications (1)

Publication Number Publication Date
CA2034380A1 true CA2034380A1 (fr) 1991-07-30

Family

ID=23871242

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2034380 Abandoned CA2034380A1 (fr) 1990-01-29 1991-01-17 Circuit de protection pour reseau polyphase

Country Status (2)

Country Link
CA (1) CA2034380A1 (fr)
FR (1) FR2657732A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715010B1 (fr) * 1994-01-10 1996-06-21 Telemecanique Dispositif électronique de protection thermique.
ES2154322T3 (es) * 1994-03-07 2001-04-01 Schneider Electric Ind Sa Dispositivo electronico de proteccion termica.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084406A (en) * 1976-01-22 1978-04-18 Fedders Corporation Chiller controls
US4858053A (en) * 1985-11-01 1989-08-15 Square D Company Operational amplifier having an improved feedback system including an integrator having a hurry-up circuit, and an electric motor control using the same for inverse trip selection

Also Published As

Publication number Publication date
FR2657732A1 (fr) 1991-08-02

Similar Documents

Publication Publication Date Title
EP0316203B1 (fr) Relais de protection
KR0133658B1 (ko) 고장형태를 탐지할 수 있는 3상 주 시스템의 보호 회로 차단기를 위한 고체트립장치
US4210948A (en) Method and apparatus for monitoring line voltage in a polyphase source
EP0759220B1 (fr) Detecteur destine a la surveillance de l'integrite d'une prise de terre d'un appareil electrique
EP0465507B1 (fr) Alimentation electrique sensible a une defaillance
US4414601A (en) Solid-state load protection system having a test feature
GB2097611A (en) Solid state load protecting system having ground fault sensing
US5014153A (en) Transformer differential relay
US4346307A (en) Voltage-unbalance detector for polyphase electrical systems
US5243489A (en) Protection circuit for multiple phase power system
IE52745B1 (en) Solid-state load protection system having an improved inverse time delay circuit
JPH0410297B2 (fr)
CA1130436A (fr) Systeme d'alimentation en courant alternatif a lignes en paralleles a dispositif differentiel de protection absolue contre les courants intenses dus aux defaillances
US5610532A (en) Isolated DC fault current sensor
US5488303A (en) GFCI with auxiliary coil current blocking means and improved test button configuration
CA2034380A1 (fr) Circuit de protection pour reseau polyphase
US4379317A (en) Solid-state load protection system having loss of phase sensing
US4486803A (en) Electronic system for high amperage circuit interruption apparatus
JP2000261958A (ja) 地絡電流抑制装置の保護装置および地絡抑制方法
CA1148248A (fr) Disjoncteur monophase detecteur de fuites
US20020080535A1 (en) Multiple ground fault trip function system and method for same
US6912108B2 (en) Protective equipment for a series-capacitor installation
CA1099341A (fr) Circuit permettant de detecter les pertes a la terre dans un convertisseur
US3262016A (en) Load protector
JP2680871B2 (ja) 付加接地事故モジュール

Legal Events

Date Code Title Description
FZDE Dead