JPS63182632U

JPS63182632U -

Info

Publication number: JPS63182632U
Application number: JP7409087U
Authority: JP
Priority date: 1987-05-18
Filing date: 1987-05-18
Publication date: 1988-11-24

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例の系統図である。
第２図はこの考案の一実施例による表示画面を拡
大して示す図である。第３図はこの考案の一実施
例のより具体的な構成を示す概略ブロツク図であ
る。図において、１は表示装置、２はセレクトスイ
ツチ、３はＣＲＴデイスプレイ、７，２３はＣＰ
Ｕ、８はキーボード、９はプリンタ、１０は中央
監視装置、１１ないし１３，２５はインターフエ
イス、２１は入力回路、２２は設定回路、２４は
トリガ回路、Ａ１，Ｂ１ないしＢ３，Ｃ１，Ｃ２
は回路遮断器、ＣＴ１ないしＣＴ６は変流器を示
す。 FIG. 1 is a system diagram of an embodiment of this invention.
FIG. 2 is an enlarged view of a display screen according to an embodiment of this invention. FIG. 3 is a schematic block diagram showing a more specific configuration of an embodiment of this invention. In the figure, 1 is a display device, 2 is a select switch, 3 is a CRT display, and 7 and 23 are CP
U, 8 is a keyboard, 9 is a printer, 10 is a central monitoring device, 11 to 13, 25 are interfaces, 21 is an input circuit, 22 is a setting circuit, 24 is a trigger circuit, A1, B1 to B3, C1, C2
indicates a circuit breaker, and CT1 to CT6 indicate current transformers.

Claims

[Claims for Utility Model Registration] (1) A tripping characteristic comparison display device for displaying the tripping characteristics of power tripping devices of circuit breakers connected in a cascade relationship in upper and lower positions with respect to a power source, an input means for inputting setting values for the current and time of the current tripping device, a display means having a display surface of a coordinate system consisting of orthogonal axes in which the current and time are respectively scaled; A tripping characteristic comparison display device, comprising a control means for displaying input current-tripping time characteristics of one or more circuit breakers on the display means. (2) A request for registration of a utility model, characterized in that the setting values regarding current and time of the current tripping device of the circuit breaker are a combination of long-time tripping, short-time tripping, and instantaneous tripping characteristics. range 1
Tripping characteristic comparison display device described in Section 1. (3) The setting values regarding the current and time of the current tripping device of the circuit breaker are a combination of long-time tripping, short-time tripping, instantaneous tripping, and ground fault tripping characteristics. , a trip characteristic comparison display device according to claim 1 of the utility model registration claim. (4) The trip characteristic comparison display according to claim 1 of the utility model registration claim, wherein the input means includes a selection means for selecting and inputting setting values of current trip devices in a plurality of circuit breakers. Device. (5) Utility model registration claim 1, wherein each of the orthogonal axes is a logarithmic memory.
Tripping characteristic comparison display device described in Section 1. (6) In the orthogonal axes, the horizontal axis is the current axis, the vertical axis is the time axis, and the length of one decade on the vertical axis is equal to the length of one decade on the horizontal axis.
The trip characteristic comparison display device according to claims 1 and 5 of the utility model registration claim, characterized in that the length is 1/2 of the length of the deckard. (7) The trip characteristic comparison display device according to claim 1, wherein the display means is a liquid crystal display. (8) Utility model registration claim 1, characterized in that the display means is a CRT display.
Tripping characteristic comparison display device described in Section 1.