DE3484351D1 - Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz. - Google Patents

Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz.

Info

Publication number
DE3484351D1
DE3484351D1 DE8787117882T DE3484351T DE3484351D1 DE 3484351 D1 DE3484351 D1 DE 3484351D1 DE 8787117882 T DE8787117882 T DE 8787117882T DE 3484351 T DE3484351 T DE 3484351T DE 3484351 D1 DE3484351 D1 DE 3484351D1
Authority
DE
Germany
Prior art keywords
power plant
variable frequency
voltage protection
protection switch
switch
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 - Fee Related
Application number
DE8787117882T
Other languages
English (en)
Inventor
Nobuharu C O Mitsubishi Takata
Sakio C O Mitsubishi Denk Hino
Makoto C O Mitsubishi Denk Ito
Seiji C O Mitsubishi De Kaneko
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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
Priority claimed from JP12081083A external-priority patent/JPS6013422A/ja
Priority claimed from JP12081183A external-priority patent/JPS6013423A/ja
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE3484351D1 publication Critical patent/DE3484351D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H02H7/09—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 over-voltage; against reduction of voltage; against phase interruption
DE8787117882T 1983-06-30 1984-06-27 Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz. Expired - Fee Related DE3484351D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12081083A JPS6013422A (ja) 1983-06-30 1983-06-30 可変周波数電力系統の電圧検出装置
JP12081183A JPS6013423A (ja) 1983-06-30 1983-06-30 可変周波数電力系統の電圧検出装置

Publications (1)

Publication Number Publication Date
DE3484351D1 true DE3484351D1 (de) 1991-05-02

Family

ID=26458328

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8787117881T Expired - Fee Related DE3484352D1 (de) 1983-06-30 1984-06-27 Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz.
DE8787117882T Expired - Fee Related DE3484351D1 (de) 1983-06-30 1984-06-27 Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8787117881T Expired - Fee Related DE3484352D1 (de) 1983-06-30 1984-06-27 Spannungsschutzschalter fuer eine kraftanlage mit variabler frequenz.

Country Status (4)

Country Link
EP (3) EP0264971B1 (de)
KR (1) KR850000683A (de)
CA (1) CA1249338A (de)
DE (2) DE3484352D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2032912C (en) * 1990-12-21 1994-06-28 Bryan M. Latta Nonintrusive gas-level measurement apparatus
EP1819021B1 (de) * 2006-02-14 2018-06-20 Finder S.P.A. Verfahren und Vorrichtung zur Überwachung eines mehrphasigen Netzes und zur Erkennung eines Phaseausfalles basierend auf dem Phasenwinkel zwischen verketteten Spannungen
CN113765411A (zh) * 2020-06-05 2021-12-07 产晶积体电路股份有限公司 变频电源控制器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3546534A (en) * 1968-01-31 1970-12-08 Gen Electric Overexcitation relay
JPS52120317A (en) * 1976-04-02 1977-10-08 Hitachi Ltd Field overvoltage protector for synchronous machine
SE416757B (sv) * 1979-04-24 1981-02-02 Asea Ab Anordning anslutning till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proportionellt med forhallandet mellan netets linjespenning och frekvens
DE3237800C2 (de) * 1982-08-03 1986-09-11 Loher Gmbh, 8399 Ruhstorf Schutzeinrichtung für Asynchron-Motoren

Also Published As

Publication number Publication date
EP0130547A1 (de) 1985-01-09
EP0271777A2 (de) 1988-06-22
EP0264971B1 (de) 1991-03-27
CA1249338A (en) 1989-01-24
EP0264971A2 (de) 1988-04-27
EP0271777A3 (en) 1988-07-06
EP0264971A3 (en) 1988-08-03
EP0130547B1 (de) 1989-09-20
DE3484352D1 (de) 1991-05-02
KR850000683A (ko) 1985-02-28
EP0271777B1 (de) 1991-03-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee