FR2506540B3 - - Google Patents

Info

Publication number
FR2506540B3
FR2506540B3 FR8208990A FR8208990A FR2506540B3 FR 2506540 B3 FR2506540 B3 FR 2506540B3 FR 8208990 A FR8208990 A FR 8208990A FR 8208990 A FR8208990 A FR 8208990A FR 2506540 B3 FR2506540 B3 FR 2506540B3
Authority
FR
France
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
FR8208990A
Other languages
French (fr)
Other versions
FR2506540A1 (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.)
SISME SpA
Original Assignee
SISME SpA
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 SISME SpA filed Critical SISME SpA
Publication of FR2506540A1 publication Critical patent/FR2506540A1/en
Application granted granted Critical
Publication of FR2506540B3 publication Critical patent/FR2506540B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Multiple Motors (AREA)
FR8208990A 1981-05-19 1982-05-19 DEVICE FOR VARYING THE SPEED OF ASYNCHRONOUS MOTORS Granted FR2506540A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8121811U IT8121811V0 (en) 1981-05-19 1981-05-19 SPEED CHANGE DEVICE IN ASYNCHRONOUS ELECTRIC MOTORS.

Publications (2)

Publication Number Publication Date
FR2506540A1 FR2506540A1 (en) 1982-11-26
FR2506540B3 true FR2506540B3 (en) 1984-03-30

Family

ID=11187174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8208990A Granted FR2506540A1 (en) 1981-05-19 1982-05-19 DEVICE FOR VARYING THE SPEED OF ASYNCHRONOUS MOTORS

Country Status (3)

Country Link
FR (1) FR2506540A1 (en)
GB (1) GB2100476B (en)
IT (1) IT8121811V0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876318A (en) * 1981-10-30 1983-05-09 Mitsubishi Heavy Ind Ltd Control method and device of airflow of air conditioner
FR2551567B1 (en) * 1983-09-06 1985-12-13 Electricite De France TEMPERATURE AND HYGROMETRY CONTROL AND REGULATION INTERFACE
GB2270579B (en) * 1992-09-14 1996-08-28 Yu Feng Enterprise Co Ltd Improved micro-computer operated control device for air-conditioning system

Also Published As

Publication number Publication date
GB2100476B (en) 1985-02-20
IT8121811V0 (en) 1981-05-19
FR2506540A1 (en) 1982-11-26
GB2100476A (en) 1982-12-22

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