JPS5995735U

JPS5995735U - protective relay

Info

Publication number: JPS5995735U
Application number: JP19174482U
Authority: JP
Inventors: 正司臼井
Original assignee: 三菱電機株式会社
Priority date: 1982-12-15
Filing date: 1982-12-15
Publication date: 1984-06-29

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図及び第２図は従来の保護継電器の回路図、第３図
は第１図及び第２図に示す保護継電器の接点の配置図、
第４図はこの考案の一実施例による保護継電器の接点の
配置図、第５図は第４図に示す保護継電器の回路図であ
る。１・・・比率差動要素、４・・・第２高調波抑制要素、
６．１３・・・補助継電器、７．８・・・固定接点、９
゜１０・・・可動接点、１１．１２・・・可動部。なお
、図中、同一符号は同一部分を示す。Figures 1 and 2 are circuit diagrams of conventional protective relays, Figure 3 is a layout diagram of the contacts of the protective relay shown in Figures 1 and 2,
FIG. 4 is a layout diagram of contacts of a protective relay according to an embodiment of this invention, and FIG. 5 is a circuit diagram of the protective relay shown in FIG. 4. 1... Ratio differential element, 4... Second harmonic suppression element,
6.13... Auxiliary relay, 7.8... Fixed contact, 9
゜10...Movable contact, 11.12...Movable part. Note that in the figures, the same reference numerals indicate the same parts.

Claims

[Scope of utility model registration request]

A first movable contact that is driven to electrically contact the first fixed contact when an input signal detected from the first fixed contact and the object to be protected satisfies a predetermined first condition.
When the other input signals detected from the element, the second fixed contact, and the object to be protected satisfy a predetermined second condition, the second
a second element that is driven to electrically contact the fixed contact and is arranged such that its movement direction is opposite to that of the first movable contact, and a logical product operation of the first and second movable contacts; A protective relay with a circuit that generates a trip signal.