JPS54153256A - Transformer protecting device - Google Patents

Transformer protecting device

Info

Publication number
JPS54153256A
JPS54153256A JP6101278A JP6101278A JPS54153256A JP S54153256 A JPS54153256 A JP S54153256A JP 6101278 A JP6101278 A JP 6101278A JP 6101278 A JP6101278 A JP 6101278A JP S54153256 A JPS54153256 A JP S54153256A
Authority
JP
Japan
Prior art keywords
circuit
operated
circuits
alarming
breaking
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
JP6101278A
Other languages
Japanese (ja)
Inventor
Ryuichi Endo
Shogo Minagawa
Etsunori Mori
Kazuyuki Kinouchi
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 JP6101278A priority Critical patent/JPS54153256A/en
Publication of JPS54153256A publication Critical patent/JPS54153256A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce safety valves into two for simplifying construction by connecting contacts of two safety valves equipped on a transformer tank to AND circuits and OR circuits and operating breaking circuits and alarming circuits with two systems of electric source.
CONSTITUTION: Contacts 10 and 11 of two safety valves 7 and 8 equipped on a transformer tank are respectively connected with the first and the second AND circuit 12 and 21 and also with the first and the second OR circuit 13 and 22. A breaking circuit 14 and an alarming circuit 15 to be operated by the first electric source 16 are operated by the AND circuit 12 and the OR circuit 13, while another breaking circuit 23 and alarming circuit 24 to be operated by the second electric source 25 are operated by the AND circuit 21 and the OR circuit 22. In this construction, when either of contacts 10 and 11 is closed, alarming circuits 15 and 24 are operated, and when both are closed, breaking circuits 14 and 23 are operated. Thus, the whole construction can be simplified by adopting two systems for electric source and reducing safety valves into two.
COPYRIGHT: (C)1979,JPO&Japio
JP6101278A 1978-05-24 1978-05-24 Transformer protecting device Pending JPS54153256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6101278A JPS54153256A (en) 1978-05-24 1978-05-24 Transformer protecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6101278A JPS54153256A (en) 1978-05-24 1978-05-24 Transformer protecting device

Publications (1)

Publication Number Publication Date
JPS54153256A true JPS54153256A (en) 1979-12-03

Family

ID=13158982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6101278A Pending JPS54153256A (en) 1978-05-24 1978-05-24 Transformer protecting device

Country Status (1)

Country Link
JP (1) JPS54153256A (en)

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