IT1137790B - THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR INCLUDING TWO CONSTANT TIME BODIES - Google Patents

THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR INCLUDING TWO CONSTANT TIME BODIES

Info

Publication number: IT1137790B
Authority: IT; Italy
Prior art keywords: electric motor; protection circuit; thermal protection; constant time; motor including
Prior art date: 1980-08-04

Application number

IT23345/81A

Other languages

Italian (it)

Other versions

IT8123345A0 (en

Inventor

Christian Cadet

Gilles Baurand

Bernard Dumortier

Georges Souques

Original Assignee

Telemecanique Electrique

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.)

1980-08-04

Filing date

1981-08-03

Publication date

1986-09-10

1981-08-03 Application filed by Telemecanique Electrique filed Critical Telemecanique Electrique

1981-08-03 Publication of IT8123345A0 publication Critical patent/IT8123345A0/en

1986-09-10 Application granted granted Critical

1986-09-10 Publication of IT1137790B publication Critical patent/IT1137790B/en

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
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H6/00—Emergency 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

IT23345/81A 1980-08-04 1981-08-03 THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR INCLUDING TWO CONSTANT TIME BODIES IT1137790B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8017424A FR2488458A1 (en)	1980-08-04	1980-08-04	THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS

Publications (2)

Publication Number	Publication Date
IT8123345A0 IT8123345A0 (en)	1981-08-03
IT1137790B true IT1137790B (en)	1986-09-10

Family

ID=9244980

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT23345/81A IT1137790B (en)	1980-08-04	1981-08-03	THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR INCLUDING TWO CONSTANT TIME BODIES

Country Status (11)

Country	Link
AT (1)	AT389961B (en)
BE (1)	BE889836A (en)
CH (1)	CH642199A5 (en)
DE (1)	DE3129730A1 (en)
ES (1)	ES8207661A1 (en)
FR (1)	FR2488458A1 (en)
GB (1)	GB2081995B (en)
IT (1)	IT1137790B (en)
NL (1)	NL8103660A (en)
NO (1)	NO159470C (en)
SE (1)	SE447685B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4819118A (en) *	1988-06-02	1989-04-04	Westinghouse Electric Corp.	Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH534444A (en) *	1972-05-23	1973-02-28	Sprecher & Schuh Ag	Electronic motor protection relay with current-dependent tripping
CH540587A (en) *	1972-08-22	1973-08-15	Sprecher & Schuh Ag	Circuit arrangement that represents a thermal image of electrical equipment that is dependent on electrical losses
DE2600472C3 (en) *	1976-01-08	1981-12-10	Siemens AG, 1000 Berlin und 8000 München	Overload protection device for an electrical machine
DE2939938C2 (en) *	1979-09-28	1984-05-30	Siemens AG, 1000 Berlin und 8000 München	Overload protection arrangement for an electrical machine
FR2468238A1 (en) *	1979-10-16	1981-04-30	Telemecanique Electrique	Phase loss or overvoltage protector for motor - has signal fed to comparator via Zener network and driving cut=off relay in motor supply

1980
- 1980-08-04 FR FR8017424A patent/FR2488458A1/en active Granted
1981
- 1981-07-28 DE DE19813129730 patent/DE3129730A1/en active Granted
- 1981-08-03 SE SE8104643A patent/SE447685B/en not_active IP Right Cessation
- 1981-08-03 BE BE0/205565A patent/BE889836A/en not_active IP Right Cessation
- 1981-08-03 NL NL8103660A patent/NL8103660A/en not_active Application Discontinuation
- 1981-08-03 NO NO812629A patent/NO159470C/en unknown
- 1981-08-03 AT AT0341381A patent/AT389961B/en not_active IP Right Cessation
- 1981-08-03 IT IT23345/81A patent/IT1137790B/en active
- 1981-08-03 CH CH499781A patent/CH642199A5/en not_active IP Right Cessation
- 1981-08-03 ES ES504510A patent/ES8207661A1/en not_active Expired
- 1981-08-04 GB GB8123751A patent/GB2081995B/en not_active Expired

Also Published As

Publication number	Publication date
FR2488458B1 (en)	1984-05-18
ES504510A0 (en)	1982-09-16
NO159470B (en)	1988-09-19
SE447685B (en)	1986-12-01
GB2081995A (en)	1982-02-24
GB2081995B (en)	1985-01-09
IT8123345A0 (en)	1981-08-03
FR2488458A1 (en)	1982-02-12
SE8104643L (en)	1982-02-05
ATA341381A (en)	1989-07-15
NO812629L (en)	1982-02-05
DE3129730A1 (en)	1982-02-25
CH642199A5 (en)	1984-03-30
NO159470C (en)	1989-01-04
BE889836A (en)	1981-12-01
AT389961B (en)	1990-02-26
DE3129730C2 (en)	1990-05-31
ES8207661A1 (en)	1982-09-16
NL8103660A (en)	1982-03-01

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