ES358872A1 - Magnetic circuit opening and closing motor starting switch in response to heat varying macnetic permeance - Google Patents

Magnetic circuit opening and closing motor starting switch in response to heat varying macnetic permeance

Info

Publication number
ES358872A1
ES358872A1 ES358872A ES358872A ES358872A1 ES 358872 A1 ES358872 A1 ES 358872A1 ES 358872 A ES358872 A ES 358872A ES 358872 A ES358872 A ES 358872A ES 358872 A1 ES358872 A1 ES 358872A1
Authority
ES
Spain
Prior art keywords
resistor
contacts
macnetic
permeance
response
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
Application number
ES358872A
Other languages
Spanish (es)
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.)
Danfoss AS
Original Assignee
Danfoss AS
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
Priority claimed from DE19671588139 external-priority patent/DE1588139B1/en
Application filed by Danfoss AS filed Critical Danfoss AS
Publication of ES358872A1 publication Critical patent/ES358872A1/en
Expired 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
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Abstract

A curie point magnetic switch 7 in a motor starting circuit has a resistor 6 in series with its contacts 8 and a positive temperature coefficient resistor 12 in parallel with the contacts 8 and resistor 6. To start the single phase a synchronous motor a main switch 3 is closed so that the mains voltage from terminals 1, 2 is applied to the main motor winding 4 and to a starting winding 5 in series with the contacts 8 and resistor 6 with their parallel PTC resistor 12. The latter heats a ferrite plate 11 to its curie point is that the bias of a contact spring 9 carrying a permanent magnet 10 is sufficient to open the contacts 8. The starting current drops to a low value which is mainly determined by the resistance of the resistor 12, but which is sufficient to heat the resistor 12 and maintain yoke 11 at a temperature above its curie paint so that the permanent magnet 10 is not re-attracted.
ES358872A 1967-10-07 1968-10-05 Magnetic circuit opening and closing motor starting switch in response to heat varying macnetic permeance Expired ES358872A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671588139 DE1588139B1 (en) 1967-10-07 1967-10-07 Starting circuit for a single-phase motor

Publications (1)

Publication Number Publication Date
ES358872A1 true ES358872A1 (en) 1970-05-16

Family

ID=5679870

Family Applications (1)

Application Number Title Priority Date Filing Date
ES358872A Expired ES358872A1 (en) 1967-10-07 1968-10-05 Magnetic circuit opening and closing motor starting switch in response to heat varying macnetic permeance

Country Status (7)

Country Link
US (1) US3566225A (en)
BE (1) BE721828A (en)
DK (1) DK131528B (en)
ES (1) ES358872A1 (en)
FR (1) FR1587425A (en)
GB (1) GB1180354A (en)
SE (1) SE355907B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852648A (en) * 1971-05-25 1974-12-03 Carrier Corp Control circuit
CA921523A (en) * 1971-08-06 1973-02-20 G. Carson Kenneth Thermoferrite switch with ptc resistor temperature compensation
FR2486729A1 (en) * 1980-07-11 1982-01-15 Electro Hydraulique Seh SINGLE PHASE ASYNCHRONOUS MOTOR AND DEVICE FOR CONTROLLING SUCH A MOTOR
DE3444223A1 (en) * 1984-12-04 1986-06-05 Ranco Inc., Dublin, Ohio SWITCH RELAY
US6989649B2 (en) * 2003-07-09 2006-01-24 A. O. Smith Corporation Switch assembly, electric machine having the switch assembly, and method of controlling the same
US8540493B2 (en) 2003-12-08 2013-09-24 Sta-Rite Industries, Llc Pump control system and method
US8602745B2 (en) 2004-08-26 2013-12-10 Pentair Water Pool And Spa, Inc. Anti-entrapment and anti-dead head function
US7874808B2 (en) 2004-08-26 2011-01-25 Pentair Water Pool And Spa, Inc. Variable speed pumping system and method
US7686589B2 (en) 2004-08-26 2010-03-30 Pentair Water Pool And Spa, Inc. Pumping system with power optimization
US8469675B2 (en) 2004-08-26 2013-06-25 Pentair Water Pool And Spa, Inc. Priming protection
US8480373B2 (en) 2004-08-26 2013-07-09 Pentair Water Pool And Spa, Inc. Filter loading
US7845913B2 (en) 2004-08-26 2010-12-07 Pentair Water Pool And Spa, Inc. Flow control
US7854597B2 (en) 2004-08-26 2010-12-21 Pentair Water Pool And Spa, Inc. Pumping system with two way communication
US8019479B2 (en) 2004-08-26 2011-09-13 Pentair Water Pool And Spa, Inc. Control algorithm of variable speed pumping system
EP2342402B1 (en) 2008-10-06 2018-06-06 Pentair Water Pool and Spa, Inc. Method of operating a safety vacuum release system
US9556874B2 (en) 2009-06-09 2017-01-31 Pentair Flow Technologies, Llc Method of controlling a pump and motor
BR112013014476A2 (en) 2010-12-08 2016-09-20 Pentair Water Pool & Spa Inc vacuum relief relief valve for a vacuum release safety system
ES2640280T3 (en) 2011-11-01 2017-11-02 Pentair Water Pool And Spa, Inc. Flow blocking system and method
US9885360B2 (en) 2012-10-25 2018-02-06 Pentair Flow Technologies, Llc Battery backup sump pump systems and methods
US10916395B2 (en) * 2017-07-28 2021-02-09 Maggma Group Ip Limited Switch

Also Published As

Publication number Publication date
DK131528C (en) 1975-12-15
GB1180354A (en) 1970-02-04
BE721828A (en) 1969-03-14
DK131528B (en) 1975-07-28
FR1587425A (en) 1970-03-20
US3566225A (en) 1971-02-23
SE355907B (en) 1973-05-07

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