DE3728197C2 - Elektronisches Schutzrelais - Google Patents

Elektronisches Schutzrelais

Info

Publication number
DE3728197C2
DE3728197C2 DE3728197A DE3728197A DE3728197C2 DE 3728197 C2 DE3728197 C2 DE 3728197C2 DE 3728197 A DE3728197 A DE 3728197A DE 3728197 A DE3728197 A DE 3728197A DE 3728197 C2 DE3728197 C2 DE 3728197C2
Authority
DE
Germany
Prior art keywords
resistor
diode
comparator
reference voltage
capacitor
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
DE3728197A
Other languages
German (de)
English (en)
Other versions
DE3728197A1 (de
Inventor
Said Lassal
Gabriel Muller
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.)
Rockwell Automation Switzerland GmbH
Original Assignee
Sprecher und Schuh 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 Sprecher und Schuh AG filed Critical Sprecher und Schuh AG
Publication of DE3728197A1 publication Critical patent/DE3728197A1/de
Application granted granted Critical
Publication of DE3728197C2 publication Critical patent/DE3728197C2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0038Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
    • H02H1/0053Means for storing the measured quantities during a predetermined time

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
DE3728197A 1986-11-18 1987-08-24 Elektronisches Schutzrelais Expired - Fee Related DE3728197C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4597/86A CH671656A5 (enrdf_load_stackoverflow) 1986-11-18 1986-11-18

Publications (2)

Publication Number Publication Date
DE3728197A1 DE3728197A1 (de) 1988-05-19
DE3728197C2 true DE3728197C2 (de) 1995-09-07

Family

ID=4279060

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3728197A Expired - Fee Related DE3728197C2 (de) 1986-11-18 1987-08-24 Elektronisches Schutzrelais

Country Status (4)

Country Link
CH (1) CH671656A5 (enrdf_load_stackoverflow)
DE (1) DE3728197C2 (enrdf_load_stackoverflow)
GB (1) GB2197763B (enrdf_load_stackoverflow)
IT (1) IT1230670B (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368500A (en) * 1981-04-27 1983-01-11 Westinghouse Electric Corp. Solid-state load protection system having an improved inverse time delay circuit
US4414601A (en) * 1981-04-27 1983-11-08 Westinghouse Electric Corp. Solid-state load protection system having a test feature
US4509088A (en) * 1982-09-30 1985-04-02 Square D Company Motor protector relay with memory of overload

Also Published As

Publication number Publication date
GB2197763A (en) 1988-05-25
GB8726573D0 (en) 1987-12-16
IT1230670B (it) 1991-10-29
IT8721775A0 (it) 1987-09-02
GB2197763B (en) 1991-01-02
DE3728197A1 (de) 1988-05-19
CH671656A5 (enrdf_load_stackoverflow) 1989-09-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: SPRECHER + SCHUH AG, AARAU, AARGAU, CH

8128 New person/name/address of the agent

Representative=s name: ZIMMERMANN, H., DIPL.-ING. GRAF VON WENGERSKY, A.,

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee