GB1039601A - Improvements in evaporative cooling arrangements - Google Patents

Improvements in evaporative cooling arrangements

Info

Publication number
GB1039601A
GB1039601A GB4369561A GB4369561A GB1039601A GB 1039601 A GB1039601 A GB 1039601A GB 4369561 A GB4369561 A GB 4369561A GB 4369561 A GB4369561 A GB 4369561A GB 1039601 A GB1039601 A GB 1039601A
Authority
GB
United Kingdom
Prior art keywords
temperature
liquid
switch
equipment
sensitive switch
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
GB4369561A
Inventor
Arthur Bickers
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB4369561A priority Critical patent/GB1039601A/en
Publication of GB1039601A publication Critical patent/GB1039601A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/18—Liquid cooling by evaporating liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

1,039,601. Transformers. PLESSEY CO. Ltd. Dec. 12, 1962 [Dec. 6, 1961], No. 43695/61. Heading H1T. A cooling system for electrical equipment using an inert liquid (the vapour of which has a relatively low resistance to breakdown until heated) includes a heater controlled by a temperature-sensitive switch to heat the liquid to a predetermined temperature before the equipment is switched on. The heater may be immersed in the cooling liquid for the equipment, which may be a transformer 1 (the Figure, not shown), or mounted in thermal contact with the outside of the vessel 2 carrying the liquid 3. Provided that the ON/OFF switch at 15 is closed, then the temperature-sensitive switch 16, which may include a thermistor, and is immersed in the liquid, will operate when the required temperature is reached, thus energizing the coil 12A of a changeover switch 12 and transferring the voltage supply connected to wipers 14 from the heaters to the equipment. A second temperature sensitive switch may be incorporated to operate at a higher temperature and to switch on a further cooling system, such as a fan, to blow air along the ducts 9.
GB4369561A 1961-12-06 1961-12-06 Improvements in evaporative cooling arrangements Expired GB1039601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4369561A GB1039601A (en) 1961-12-06 1961-12-06 Improvements in evaporative cooling arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4369561A GB1039601A (en) 1961-12-06 1961-12-06 Improvements in evaporative cooling arrangements

Publications (1)

Publication Number Publication Date
GB1039601A true GB1039601A (en) 1966-08-17

Family

ID=10429900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4369561A Expired GB1039601A (en) 1961-12-06 1961-12-06 Improvements in evaporative cooling arrangements

Country Status (1)

Country Link
GB (1) GB1039601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908757A (en) * 1986-12-13 1990-03-13 Grundfos International A/S Static frequency converter, especially a frequency converter controlling and/or adjusting the performance data of an electromotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908757A (en) * 1986-12-13 1990-03-13 Grundfos International A/S Static frequency converter, especially a frequency converter controlling and/or adjusting the performance data of an electromotor

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