JPS54124227A - Parent-and-child type transformer for use in meters - Google Patents

Parent-and-child type transformer for use in meters

Info

Publication number
JPS54124227A
JPS54124227A JP3170478A JP3170478A JPS54124227A JP S54124227 A JPS54124227 A JP S54124227A JP 3170478 A JP3170478 A JP 3170478A JP 3170478 A JP3170478 A JP 3170478A JP S54124227 A JPS54124227 A JP S54124227A
Authority
JP
Japan
Prior art keywords
winding
main winding
differential relay
voltage
parent
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.)
Granted
Application number
JP3170478A
Other languages
Japanese (ja)
Other versions
JPS617005B2 (en
Inventor
Denji Tsubouchi
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 JP3170478A priority Critical patent/JPS54124227A/en
Publication of JPS54124227A publication Critical patent/JPS54124227A/en
Publication of JPS617005B2 publication Critical patent/JPS617005B2/ja
Granted legal-status Critical Current

Links

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  • Transformers For Measuring Instruments (AREA)

Abstract

PURPOSE: To make it possible to use the conventional differential relay at sufficient sensitivity, by connecting imedance in series with at least either one of the main winding circuit or the secondary winding circuit, and thereby increasing the voltage of the secondary winding when the main winding is short-circuited.
CONSTITUTION: Impedance is connected in series with at least either one of main winding 2 connected with a protective relay or auxiliary winding 3 connected with a voltage differential relay, of the two secondary windings 2 and 3 fitted to the same iron core 4. For example, impedance (Z) 7 is connected with the circuit of main winding 2 only. By this, the voltage of auxiliary winding 3 is increased when main winding 2 is short-circuited due to insulation breakdown, and it is possible to use a conventional simple differential relay without requiring a high-sensitivity differential relay.
COPYRIGHT: (C)1979,JPO&Japio
JP3170478A 1978-03-22 1978-03-22 Parent-and-child type transformer for use in meters Granted JPS54124227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3170478A JPS54124227A (en) 1978-03-22 1978-03-22 Parent-and-child type transformer for use in meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3170478A JPS54124227A (en) 1978-03-22 1978-03-22 Parent-and-child type transformer for use in meters

Publications (2)

Publication Number Publication Date
JPS54124227A true JPS54124227A (en) 1979-09-27
JPS617005B2 JPS617005B2 (en) 1986-03-03

Family

ID=12338445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3170478A Granted JPS54124227A (en) 1978-03-22 1978-03-22 Parent-and-child type transformer for use in meters

Country Status (1)

Country Link
JP (1) JPS54124227A (en)

Also Published As

Publication number Publication date
JPS617005B2 (en) 1986-03-03

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