JPS58106931U

JPS58106931U - Parent-child instrument transformer

Info

Publication number: JPS58106931U
Application number: JP410482U
Authority: JP
Inventors: 一雄小林
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1982-01-18
Filing date: 1982-01-18
Publication date: 1983-07-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の親子形計器用変圧器の接続回路図、第２
図は第１図の巻線配置図、第３図は第２図のｘ−ｘ’あ
るいはＹ−Ｙ’切断面因である。第４図、第５図は本考
案の一実施例を示し、第４図は第２図のｘ−ｘ’切断面
図、第５図は第２図のＹ−Ｙ’切断面図である。１．２・・・・・・鉄心、３・・・・・・高圧巻線、４
・・・・・・親巻線、５・・・・・・子巻線、６，７，
８．９・・・・・・結合巻線、１０・・・・・・系統保
護リレー、１１・・・・・・差動リレー。Figure 1 is a connection circuit diagram of a conventional parent-child instrument transformer;
The figure is a winding arrangement diagram of FIG. 1, and FIG. 3 is a cross-sectional view taken along line xx' or Y-Y' of FIG. 2. 4 and 5 show an embodiment of the present invention, FIG. 4 is a sectional view taken along the line XX' in FIG. 2, and FIG. 5 is a sectional view taken along the Y-Y' line in FIG. 2. . 1.2... Iron core, 3... High voltage winding, 4
...Main winding, 5...Sub winding, 6, 7,
8.9...Coupled winding, 10...System protection relay, 11...Differential relay.

Claims

[Scope of utility model registration request]

(1) A common high voltage winding and two first coupling windings are wound around two iron cores, and a parent winding which is a resistance winding and a second coupling winding are wound on one of the cores, Further, a child winding, which is a low voltage winding, and a third coupling winding are respectively wound around the other side of the iron core, and further, one of the first coupling windings and the second coupling winding are connected. In addition, the degree of coupling between the parent winding and the second coupling winding is set to be close to the one connecting the other of the first coupling winding and the third coupling winding, and the child winding and the third coupling winding are tightly coupled. Third
A parent-child instrument transformer characterized in that the degree of coupling of the coupled windings is made loose.

(2) A parent-child instrument transformer according to claim 1, wherein the parent winding and the second coupling winding are alternately wound in one turn or a plurality of turns.

(3) Utility model registration claim 1, characterized in that the child winding and the third coupled winding are wound side by side in the axial direction of the iron core.
Parent-child instrument transformer as described in Section 1.

(4) Set the stack length of the child winding to 75 for the third coupled winding.
% or less. % or less. {5} Set the stack length of the third coupled winding to 75% of that of the child winding.
A parent-child instrument transformer as set forth in claim 1 of the utility model registration claim, characterized by the following: