JPS6464308A - On-load tap changing transformer - Google Patents

On-load tap changing transformer

Info

Publication number
JPS6464308A
JPS6464308A JP22018187A JP22018187A JPS6464308A JP S6464308 A JPS6464308 A JP S6464308A JP 22018187 A JP22018187 A JP 22018187A JP 22018187 A JP22018187 A JP 22018187A JP S6464308 A JPS6464308 A JP S6464308A
Authority
JP
Japan
Prior art keywords
tap
contactors
contact
selector
led
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
JP22018187A
Other languages
Japanese (ja)
Inventor
Shigekatsu Sato
Ryoji Watanabe
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 JP22018187A priority Critical patent/JPS6464308A/en
Publication of JPS6464308A publication Critical patent/JPS6464308A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To disconnect and hang an on-load tap changing transformer by providing a normally open contact between one tap selector and the end of a line, providing a normally closed contact synchronized with the contact at the other tap selector, and providing a line end connection switch which can switch the two types of contacts only when one tap selector is energized. CONSTITUTION:Insert contactors 13A, 13B, stationary contactors 6A, 6B and stationary contactors 6A', 6B' in which current limiting resistors 8A, 8B are connected in series are inserted between tap selectors 4A, 4B and a line end 11. A movable contactor 7 is selectively brought into contact with the contactors 6A, 6A', 6B, 6B', and a movable contactor 10 is selectively connected to the stationary contactors P and (n) of a pole changer 9. Further, a normally open contact 15A is provided between the one tap selector 4B and the line end 11, a normally closed contact 15B is provided between the other selector 4A and the contactor 13B of a changeover switch 5, and two types of the contacts 15A, 15B are driven synchronously by a line end connection switch 14. Symbol 21A denotes a central winding tap led from the end of a main winding 1. The end 11 is led to a load in a single phase circuit, and led to a neutral point in a 3-phase circuit.
JP22018187A 1987-09-04 1987-09-04 On-load tap changing transformer Pending JPS6464308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22018187A JPS6464308A (en) 1987-09-04 1987-09-04 On-load tap changing transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22018187A JPS6464308A (en) 1987-09-04 1987-09-04 On-load tap changing transformer

Publications (1)

Publication Number Publication Date
JPS6464308A true JPS6464308A (en) 1989-03-10

Family

ID=16747153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22018187A Pending JPS6464308A (en) 1987-09-04 1987-09-04 On-load tap changing transformer

Country Status (1)

Country Link
JP (1) JPS6464308A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7665933B2 (en) 2007-03-30 2010-02-23 Mitsubishi Materials Corporation Cutting insert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7665933B2 (en) 2007-03-30 2010-02-23 Mitsubishi Materials Corporation Cutting insert

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