JPS56112843A - Fireproof device for rotary electric machine - Google Patents

Fireproof device for rotary electric machine

Info

Publication number
JPS56112843A
JPS56112843A JP1474780A JP1474780A JPS56112843A JP S56112843 A JPS56112843 A JP S56112843A JP 1474780 A JP1474780 A JP 1474780A JP 1474780 A JP1474780 A JP 1474780A JP S56112843 A JPS56112843 A JP S56112843A
Authority
JP
Japan
Prior art keywords
inert gas
bearing
oil
course
loop
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.)
Pending
Application number
JP1474780A
Other languages
Japanese (ja)
Inventor
Shoichi Yamada
Kazuhiko Oyamada
Nobuo Otomo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1474780A priority Critical patent/JPS56112843A/en
Publication of JPS56112843A publication Critical patent/JPS56112843A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To minimize the quantity of an inert gas into bearing chambers when abnormality happens, etc. and improve a scavenging effect by altering a course of bearing waste oil to the loop seal side after starting the supply of the inert gas. CONSTITUTION:Automatic ball valves 8a, 8b are closed after a fixed time passes after the opening operation signals of a discharge valve are emitted, and a course of return oil flowing in a waste-oil return pipe 9 is changed. That is, bearing waste oil is flowed to an air extracting tank 6 through loop seals 10a, 10b. Consequently, bearing chambers 5a, 5b, the inside of the air extracting tank 6 and atmospheric air are interrupted by means of the loop seals 10a, 10b. Thus, a limited inert gas can be scavenged continuously filling it into the bearing chambers 5a, 5b for a long time as much as possible, and the quantity of the inert gas can be decreased to half.
JP1474780A 1980-02-12 1980-02-12 Fireproof device for rotary electric machine Pending JPS56112843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1474780A JPS56112843A (en) 1980-02-12 1980-02-12 Fireproof device for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1474780A JPS56112843A (en) 1980-02-12 1980-02-12 Fireproof device for rotary electric machine

Publications (1)

Publication Number Publication Date
JPS56112843A true JPS56112843A (en) 1981-09-05

Family

ID=11869699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1474780A Pending JPS56112843A (en) 1980-02-12 1980-02-12 Fireproof device for rotary electric machine

Country Status (1)

Country Link
JP (1) JPS56112843A (en)

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