GB165936A - Improvements in the cooling of electrical apparatus - Google Patents

Improvements in the cooling of electrical apparatus

Info

Publication number
GB165936A
GB165936A GB945220A GB945220A GB165936A GB 165936 A GB165936 A GB 165936A GB 945220 A GB945220 A GB 945220A GB 945220 A GB945220 A GB 945220A GB 165936 A GB165936 A GB 165936A
Authority
GB
United Kingdom
Prior art keywords
tubes
pair
cooling
core
pitch
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
GB945220A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB945220A priority Critical patent/GB165936A/en
Publication of GB165936A publication Critical patent/GB165936A/en
Priority to DE1966T0032019 priority patent/DE1260555B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/20—Cathode-ray oscilloscopes
    • G01R13/22—Circuits therefor
    • G01R13/32—Circuits for displaying non-recurrent functions such as transients; Circuits for triggering; Circuits for synchronisation; Circuits for time-base expansion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

165,936. Schroeder, G. April 1, 1920. Armatures and field magnets, cooling.-A cooling-arrangement for the core of an electrical machine comprises a circulating-system for a cooling-liquid consisting of longitudinal tubular parts inserted in the core and interconnecting end parts, the tubes and end connections being so disposed relatively to the magnetic flux that the sum of the electromotive forces induced in them is approximately zero in any complete circuit formed by the system. In the arrangement shown in Fig. 1, the cooling-system comprises a series of pairs of tubes, the tubes c. d of each pair being placed close together and united at one end, the other ends being connected with the inlet and outlet chambers e, f. In a modification applicable to machines having more than one pair of poles, the tubes of each pair are separated by a distance equal to two pole-pitches. The tubes of one pair may be connected with the tubes of another pair, and the groups thus formed may be connected in series or parallel, giving a tube system analogous to a winding for half the number of poles. In another arrangement the tubes are arranged to resemble a closed armature winding having a fractional pitch as shown in Fig. 3, the pitch of the tube system being equal to half a pole-pitch. The tubes are preferably formed of a high-resistance metal or alloy and are separated from the core by a thin layer of insulating-material. The tubes may be made with a slight clearance in the ducts, and after being placed in position expanded by hydraulic or pneumatic pressure.
GB945220A 1920-04-01 1920-04-01 Improvements in the cooling of electrical apparatus Expired GB165936A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB945220A GB165936A (en) 1920-04-01 1920-04-01 Improvements in the cooling of electrical apparatus
DE1966T0032019 DE1260555B (en) 1920-04-01 1966-09-09 Wobble transmitter with an oscillator whose frequency can be changed periodically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB945220A GB165936A (en) 1920-04-01 1920-04-01 Improvements in the cooling of electrical apparatus

Publications (1)

Publication Number Publication Date
GB165936A true GB165936A (en) 1921-07-01

Family

ID=9872207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB945220A Expired GB165936A (en) 1920-04-01 1920-04-01 Improvements in the cooling of electrical apparatus

Country Status (1)

Country Link
GB (1) GB165936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113748A1 (en) * 2007-03-19 2008-09-25 Siemens Aktiengesellschaft Electrical machine with compensation for the induced voltage in the cooling pipe system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008113748A1 (en) * 2007-03-19 2008-09-25 Siemens Aktiengesellschaft Electrical machine with compensation for the induced voltage in the cooling pipe system

Similar Documents

Publication Publication Date Title
US3647932A (en) Transposed conductor for dynamoelectric machines
GB1117433A (en) Improvements in alternating current generators
ES367726A1 (en) Connecting means for dynamoelectric machine cooling system
US2498747A (en) Electromagnetic device and method of making the same
US3280244A (en) Transposed conductor bar
US3585428A (en) Ransposed conductor for dynamoelectric machines
GB165936A (en) Improvements in the cooling of electrical apparatus
GB171836A (en) Improvements in and relating to electric transformers and the like
US2780739A (en) Conductor-ventilated turbinegenerators
US2920571A (en) Electro-magnetic devices
US2404016A (en) Method of making electromagnetic devices
US1494715A (en) Cooling of electrical apparatus
US3697791A (en) Rotor for dynamoelectric machines
GB495370A (en) Improvements in or relating to three-phase transformers and three-phase choking coils
US3602751A (en) Transposed conductor for dynamoelectric machines
RU181143U1 (en) Three-phase high-voltage transformer with liquid cooling system
US2965775A (en) Dynamo electric machines
DE445936C (en) Arrangement for cooling the windings of electrical machines embedded in slots
GB600673A (en) Improvements in or relating to the heating of strip metal by electromagnetic induction
AT93548B (en) Arrangement for cooling the windings of electrical machines.
US2403118A (en) Armature winding
Nunes et al. Air core reactor analysis based on RNM method
US3432907A (en) Apparatus for altering the configuration of electrically conductive turns of inductive devices
GB165937A (en) Improvements in means for carrying off heat generated in electrical apparatus
CN216749548U (en) Water-cooled transformer