JPS5553403A - Oil-filled electric machine - Google Patents

Oil-filled electric machine

Info

Publication number
JPS5553403A
JPS5553403A JP12622278A JP12622278A JPS5553403A JP S5553403 A JPS5553403 A JP S5553403A JP 12622278 A JP12622278 A JP 12622278A JP 12622278 A JP12622278 A JP 12622278A JP S5553403 A JPS5553403 A JP S5553403A
Authority
JP
Japan
Prior art keywords
oil
electric machine
filled electric
side plate
stays
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
JP12622278A
Other languages
Japanese (ja)
Inventor
Minoru Kanai
Yasuro Hori
Keizaburo Kawashima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12622278A priority Critical patent/JPS5553403A/en
Publication of JPS5553403A publication Critical patent/JPS5553403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Housings And Mounting Of Transformers (AREA)

Abstract

PURPOSE: To contral the vibration of an oil-filled electric machine accurately in a short time by means of a simple structure, by turning an adjusting nut of a tension device and adjusting the distance between reinforcing stays, when the resonant frequency of a side plate is tuned to the exciting oscillation.
CONSTITUTION: Tank 1 consists of side plate 2 and a plurality of reinforcing stays 3 welded on side plate 2. After an oil-filled electric machine is installed at the site, the resonant frequency of each part of side plate 2 is measured by means of a simple percussion test. If the results of the test showed that the resonant frequency of side plat 2 surrounded by stays 3 is tuned to the exciting oscillation, adjusting nut 10 of tension device 12 is turned and thereby the distance between stays 3 is adjusted. By this it is possible to adjust the vibration of an oil-filled electric machine accurately in a short time by a simple structure.
COPYRIGHT: (C)1980,JPO&Japio
JP12622278A 1978-10-16 1978-10-16 Oil-filled electric machine Pending JPS5553403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12622278A JPS5553403A (en) 1978-10-16 1978-10-16 Oil-filled electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12622278A JPS5553403A (en) 1978-10-16 1978-10-16 Oil-filled electric machine

Publications (1)

Publication Number Publication Date
JPS5553403A true JPS5553403A (en) 1980-04-18

Family

ID=14929761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12622278A Pending JPS5553403A (en) 1978-10-16 1978-10-16 Oil-filled electric machine

Country Status (1)

Country Link
JP (1) JPS5553403A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074521A1 (en) * 1981-09-07 1983-03-23 Transformatoren Union Aktiengesellschaft Transformer tank with a smooth wall surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074521A1 (en) * 1981-09-07 1983-03-23 Transformatoren Union Aktiengesellschaft Transformer tank with a smooth wall surface

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