JPH0361584U

JPH0361584U -

Info

Publication number: JPH0361584U
Application number: JP12243389U
Authority: JP
Priority date: 1989-10-19
Filing date: 1989-10-19
Publication date: 1991-06-17

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る無瞬断切換ス
イツチの異常検出装置の構成を示す回路図、第２
図は第１図の実施例における論理判別回路への入
力信号を示すタイムチヤート、第３図は半波ダイ
オード式の切換スイツチの構成を示す回路図、第
４図は第３図の実施例における論理判別回路への
入力信号を示すタイムチヤート、第５図は無停電
電源装置の冗長システムの概要を示す回路図であ
る。１……ＣＶＣＦ、２……母線、４……半導体ス
イツチ、５……バイパス、９−１，９−２……絶
縁トランス、１０……論理判別回路。 FIG. 1 is a circuit diagram showing the configuration of an abnormality detection device for a non-interruption changeover switch according to an embodiment of the present invention, and FIG.
The figure is a time chart showing the input signal to the logic discriminator circuit in the embodiment of Fig. 1, Fig. 3 is a circuit diagram showing the configuration of a half-wave diode type changeover switch, and Fig. 4 is a time chart showing the input signal to the logic discrimination circuit in the embodiment of Fig. 3. FIG. 5 is a time chart showing input signals to the logic discrimination circuit, and is a circuit diagram showing an outline of the redundant system of the uninterruptible power supply. 1...CVCF, 2...Bus bar, 4...Semiconductor switch, 5...Bypass, 9-1, 9-2...Isolation transformer, 10...Logic discrimination circuit.

補正平２．９．１１考案の名称を次のように補正する。考案の名称無瞬断切換スイツチの異常検出
装置実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment 2.9.11 The name of the invention is amended as follows. Title of the invention Abnormality detection device for non-interruption changeover switch The scope of the utility model registration claim and the brief description of the drawings are amended as follows.

【実用新案登録請求の範囲】切換制御信号に従つて高速切換動作を行う無瞬
断切換スイツチのＯＮ・ＯＦＦ状態を検知し、前
記スイツチの異常を検出する装置において、前記スイツチの極間に高周波電圧を印加する電
圧発生部と、前記スイツチの極間における高周波電流を検出
し、電流検出信号を出力する電流検出部と、電流検出信号および切換制御信号の論理組み合
わせにより、前記スイツチの動作タイミングの異
常を判定する論理判定部と、を備えたことを特徴とする無瞬断切換スイツチの
異常検出装置。[Claims for Utility Model Registration] A device for detecting the ON/OFF state of a non-interruption changeover switch that performs high-speed switching operation in accordance with a changeover control signal, and for detecting an abnormality in the switch, comprising: A voltage generating section that applies a voltage, a current detecting section that detects a high frequency current between poles of the switch and outputs a current detection signal, and a logical combination of the current detection signal and the switching control signal to control the operation timing of the switch. What is claimed is: 1. An abnormality detection device for an uninterrupted changeover switch, comprising: a logic determination section that determines an abnormality;

【図面の簡単な説明】第１図は本考案の一実施例に係る無瞬断切換ス
イツチの異常検出装置の構成を示す回路図、第２
図は第１図の実施例における論理判別回路への入
力信号を示すタイムチヤート、第３図は半波ダイ
オード式の切換スイツチの構成を示す回路図、第
４図は第３図の実施例における論理判別回路への
入力信号を示すタイムチヤート、第５図は無停電
電源装置の並列冗長システムの概要を示す回路図
である。１……ＣＶＣＦ、２……母線、４……半導体ス
イツチ、５……バイパス母線、９−１，９−２…
…絶縁トランス、１０……論理判別回路。[Brief Description of the Drawings] Fig. 1 is a circuit diagram showing the configuration of an abnormality detection device for a non-instantaneous changeover switch according to an embodiment of the present invention;
The figure is a time chart showing the input signal to the logic discriminator circuit in the embodiment of Fig. 1, Fig. 3 is a circuit diagram showing the configuration of a half-wave diode type changeover switch, and Fig. 4 is a time chart showing the input signal to the logic discrimination circuit in the embodiment of Fig. 3. FIG. 5 is a time chart showing input signals to the logic discrimination circuit, and is a circuit diagram showing an outline of a parallel redundant system of an uninterruptible power supply. 1...CVCF, 2...Bus bar, 4...Semiconductor switch, 5...Bypass bus bar, 9-1, 9-2...
...Isolation transformer, 10...Logic discrimination circuit.

Claims

[Claims for Utility Model Registration] A device for detecting the ON/OFF state of a non-interruption changeover switch that performs high-speed switching operation in accordance with a changeover control signal, and for detecting an abnormality in the switch, comprising: A voltage generating section that applies a voltage, a current detecting section that detects a high frequency current between poles of the switch and outputs a current detection signal, and a logical combination of the current detection signal and the switching control signal to control the operation timing of the switch. What is claimed is: 1. An abnormality detection device for an uninterrupted changeover switch, comprising: a logic determination section that determines an abnormality;