GB1162613A - Improvements in or relating to Electrical Machines - Google Patents

Improvements in or relating to Electrical Machines

Info

Publication number
GB1162613A
GB1162613A GB31697/67A GB3169767A GB1162613A GB 1162613 A GB1162613 A GB 1162613A GB 31697/67 A GB31697/67 A GB 31697/67A GB 3169767 A GB3169767 A GB 3169767A GB 1162613 A GB1162613 A GB 1162613A
Authority
GB
United Kingdom
Prior art keywords
reservoir
liquid
rotor
cooling
july
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
GB31697/67A
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Publication of GB1162613A publication Critical patent/GB1162613A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/86—Means for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
    • H01H50/88—Mechanical means, e.g. dash-pot

Landscapes

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

Abstract

1,162,613. Liquid cooling of electrical machine rotors. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES (ALSTHOM). 10 July, 1967 [13 July, 1966; 24 March, 1967], No. 31697/67. Heading H2A. In an electrical machine having a rotor 2 provided with a damper winding 3 in thermal contact with cooling ducts 7, a cooling liquid reservoir 6 is located in the central part of the rotor and passages 11, 12 so interconnect the reservoir and duct ends as to establish therebetween a natural circulation of the liquid when the machine is started up as a motor. In the embodiment shown, the flow is through tubes 8 inserted into the ducts 7, and manifolds 9, 10; the rotor is vertically disposed, whereby the circulation is effected by thermo-syphon principle, and the reservoir, formed by a walled-off portion of the hollow rotor shaft 1, may be either sealed or vented to the atmosphere. In other embodiments, the ends of passages 11, 12 are inclined circumferentially in opposite directions within the reservoir in order to circulate the liquid by virtue of its inertia with respect to the speed of the reservoir.
GB31697/67A 1966-07-13 1967-07-10 Improvements in or relating to Electrical Machines Expired GB1162613A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR90002695 1966-07-13
FR2743A FR1523509A (en) 1966-07-13 1967-03-24 Liquid cooling process for damper windings of electrical machines

Publications (1)

Publication Number Publication Date
GB1162613A true GB1162613A (en) 1969-08-27

Family

ID=26235603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31697/67A Expired GB1162613A (en) 1966-07-13 1967-07-10 Improvements in or relating to Electrical Machines

Country Status (5)

Country Link
CH (1) CH450536A (en)
DE (1) DE1613402A1 (en)
FR (1) FR1523509A (en)
GB (1) GB1162613A (en)
SE (1) SE335576B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105316A1 (en) * 2002-06-06 2003-12-18 Siemens Aktiengesellschaft Electric motor comprising a stator cooling unit
WO2008022934A1 (en) * 2006-08-22 2008-02-28 Siemens Aktiengesellschaft Electric motor with self-cooling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659125A (en) * 1970-09-10 1972-04-25 Westinghouse Electric Corp Non-clogging nozzle for rotating equipment such as for cooling dynamo-electric machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105316A1 (en) * 2002-06-06 2003-12-18 Siemens Aktiengesellschaft Electric motor comprising a stator cooling unit
WO2008022934A1 (en) * 2006-08-22 2008-02-28 Siemens Aktiengesellschaft Electric motor with self-cooling
JP2010502163A (en) * 2006-08-22 2010-01-21 シーメンス アクチエンゲゼルシヤフト Self-cooling electric motor
US7859143B2 (en) 2006-08-22 2010-12-28 Siemens Aktiengesellschaft Electric motor with self-cooling

Also Published As

Publication number Publication date
SE335576B (en) 1971-06-01
FR1523509A (en) 1968-05-03
CH450536A (en) 1968-01-31
DE1613402A1 (en) 1971-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees