IT1230670B - ELECTRONIC PROTECTION RELAY. - Google Patents

ELECTRONIC PROTECTION RELAY.

Info

Publication number: IT1230670B
Authority: IT; Italy
Prior art keywords: protection relay; electronic protection; electronic; relay; protection
Prior art date: 1986-11-18

Application number

IT8721775A

Other languages

Italian (it)

Other versions

IT8721775A0 (en

Inventor

Said Lassal

Gabriel Muller

Original Assignee

Sprecher & 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.)

1986-11-18

Filing date

1987-09-02

Publication date

1991-10-29

1987-09-02 Application filed by Sprecher & Schuh Ag filed Critical Sprecher & Schuh Ag

1987-09-02 Publication of IT8721775A0 publication Critical patent/IT8721775A0/en

1991-10-29 Application granted granted Critical

1991-10-29 Publication of IT1230670B publication Critical patent/IT1230670B/en

Classifications

- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
- H02H1/0053—Means for storing the measured quantities during a predetermined time

IT8721775A 1986-11-18 1987-09-02 ELECTRONIC PROTECTION RELAY. IT1230670B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number	Publication Date
IT8721775A0 IT8721775A0 (en)	1987-09-02
IT1230670B true IT1230670B (en)	1991-10-29

Family

ID=4279060

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT8721775A IT1230670B (en)	1986-11-18	1987-09-02	ELECTRONIC PROTECTION RELAY.

Country Status (4)

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

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

1986
- 1986-11-18 CH CH4597/86A patent/CH671656A5/de not_active IP Right Cessation
1987
- 1987-08-24 DE DE3728197A patent/DE3728197C2/en not_active Expired - Fee Related
- 1987-09-02 IT IT8721775A patent/IT1230670B/en active
- 1987-11-13 GB GB8726573A patent/GB2197763B/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CH671656A5 (en)	1989-09-15
DE3728197C2 (en)	1995-09-07
GB8726573D0 (en)	1987-12-16
GB2197763B (en)	1991-01-02
IT8721775A0 (en)	1987-09-02
DE3728197A1 (en)	1988-05-19
GB2197763A (en)	1988-05-25

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Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19950928