GB2081995B - Thermal simulators for protecting electric motors - Google Patents

Thermal simulators for protecting electric motors

Info

Publication number: GB2081995B
Authority: GB; United Kingdom
Prior art keywords: electric motors; protecting electric; thermal simulators; simulators; thermal
Prior art date: 1980-08-04
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

Application number

GB8123751A

Other versions

GB2081995A (en

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.)

Telemecanique SA

Original Assignee

La Telemecanique Electrique SA

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

1981-08-04

Publication date

1985-01-09

1981-08-04 Application filed by La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA

1982-02-24 Publication of GB2081995A publication Critical patent/GB2081995A/en

1985-01-09 Application granted granted Critical

1985-01-09 Publication of GB2081995B publication Critical patent/GB2081995B/en

Status Expired legal-status Critical Current

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

GB8123751A 1980-08-04 1981-08-04 Thermal simulators for protecting electric motors Expired GB2081995B (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
GB2081995A GB2081995A (en)	1982-02-24
GB2081995B true GB2081995B (en)	1985-01-09

Family

ID=9244980

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8123751A Expired GB2081995B (en)	1980-08-04	1981-08-04	Thermal simulators for protecting electric motors

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
IT1137790B (en)	1986-09-10
SE447685B (en)	1986-12-01
GB2081995A (en)	1982-02-24
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

Publication	Publication Date	Title
GB2066597B (en)	1983-02-16	Protecting electric motors
GB2078028B (en)	1983-09-01	Overload protection for motors
ZA801282B (en)	1981-05-27	Protection system for an electric motor
JPS5758357A (en)	1982-04-08	Overvoltage protecting device for high electric power
GB2120476B (en)	1985-10-09	Thermal model for electrical apparatus
GB2038120B (en)	1982-09-15	Protecting an electric power system
GB2089966B (en)	1984-11-07	Thermal insulation
JPS5737431A (en)	1982-03-01	Electric dustcloth
DE3569639D1 (en)	1989-05-24	Protecting device for an electric network
DE3372688D1 (en)	1987-08-27	Protective device for asynchronous motors
GB2087163B (en)	1984-09-12	Oil cooled electric motors
GB2096837B (en)	1985-02-27	Brushgear for electric motors
GB2081995B (en)	1985-01-09	Thermal simulators for protecting electric motors
GB2067438B (en)	1983-02-16	Washers for electric motors
JPS5783098A (en)	1982-05-24	Case for electric equipment
JPS5783096A (en)	1982-05-24	Case for electric equipment
JPS56145726A (en)	1981-11-12	Device for protecting electric equipment
JPS5734623A (en)	1982-02-25	3-phase thermal protector
DE3067703D1 (en)	1984-06-07	Protective device for electric power line
JPS5774911A (en)	1982-05-11	Leading unit for electric equipment
JPS5635314A (en)	1981-04-08	Casing for electric part
HK34185A (en)	1985-05-10	Electric fan
JPS56131892A (en)	1981-10-15	Electric fan
JPS56129396A (en)	1981-10-09	Cooler for electric device
JPS56162679A (en)	1981-12-14	Electric typewriter

Legal Events

Date	Code	Title	Description
1994-04-06	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19930804