ES420899A1 - Perfeccionamientos en dispositivos de control para ventila-dores. - Google Patents

Perfeccionamientos en dispositivos de control para ventila-dores.

Info

Publication number
ES420899A1
ES420899A1 ES420899A ES420899A ES420899A1 ES 420899 A1 ES420899 A1 ES 420899A1 ES 420899 A ES420899 A ES 420899A ES 420899 A ES420899 A ES 420899A ES 420899 A1 ES420899 A1 ES 420899A1
Authority
ES
Spain
Prior art keywords
resistor
sensor
fans
control devices
air stream
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
ES420899A
Other languages
English (en)
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of ES420899A1 publication Critical patent/ES420899A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Details Of Resistors (AREA)
  • Emergency Alarm Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
ES420899A 1972-11-28 1973-11-27 Perfeccionamientos en dispositivos de control para ventila-dores. Expired ES420899A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722258252 DE2258252A1 (de) 1972-11-28 1972-11-28 Ueberwachungseinrichtung fuer einen luefter

Publications (1)

Publication Number Publication Date
ES420899A1 true ES420899A1 (es) 1976-05-01

Family

ID=5862924

Family Applications (1)

Application Number Title Priority Date Filing Date
ES420899A Expired ES420899A1 (es) 1972-11-28 1973-11-27 Perfeccionamientos en dispositivos de control para ventila-dores.

Country Status (12)

Country Link
US (1) US3885200A (en])
AT (1) AT328138B (en])
AU (1) AU6281173A (en])
BE (1) BE807804A (en])
CH (1) CH559314A5 (en])
DE (1) DE2258252A1 (en])
ES (1) ES420899A1 (en])
FR (1) FR2209412A5 (en])
IT (1) IT999491B (en])
NL (1) NL7314434A (en])
RO (1) RO64662A (en])
ZA (1) ZA738953B (en])

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348832A1 (fr) * 1976-04-20 1977-11-18 Ferodo Sa Perfectionnements aux circuits d'alimentation de moteurs electriques,notamment d'un moto-ventilateur de refroidissement d'un radiateur de vehicule automobile
US4048664A (en) * 1976-07-09 1977-09-13 Mosebach Manufacturing Company Protective circuit for dynamic braking resistors
US4825331A (en) * 1983-08-29 1989-04-25 Electro-Matic Products Co. Tape degausser
US4669025A (en) * 1986-04-21 1987-05-26 Digital Equipment Corporation Semiconductor junction temperature emulator
US5534854A (en) * 1995-07-10 1996-07-09 Bradbury; Rod J. Fan failure alert for electronic equipment
DE19610106A1 (de) * 1996-03-15 1997-09-18 Holzschuh Gmbh & Co Kg Anordnung zur Fernsteuerung eines Elektromotors, insbesondere für einen Heiz- und Gebläselüfter
US6163266A (en) * 1998-12-08 2000-12-19 Lucent Technologies Inc. Fan operation detection circuit for a DC fan and method of operation thereof
JP6246753B2 (ja) * 2015-02-23 2017-12-13 株式会社東芝 可変速運転制御装置および水力発電システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309574A (en) * 1964-04-30 1967-03-14 Rca Corp Protective cooling system

Also Published As

Publication number Publication date
CH559314A5 (en]) 1975-02-28
AT328138B (de) 1976-03-10
BE807804A (fr) 1974-05-27
ZA738953B (en) 1974-10-30
NL7314434A (en]) 1974-05-30
IT999491B (it) 1976-02-20
DE2258252A1 (de) 1974-06-12
US3885200A (en) 1975-05-20
FR2209412A5 (en]) 1974-06-28
AU6281173A (en) 1975-05-22
RO64662A (fr) 1978-11-15

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