JPS63137531U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の交流回路の異相接続防止装
置の一実施例を示す接続図である。第２図は、第
１図の実施例の電圧継電器にかかる電圧を示した
説明図である。 １…配電線、２…柱上開閉器、３ａ…主しや断
器、３ｂ…主しや断器の接点、４…主しや断器駆
動用押釦スイツチ、５ａ…第１の電圧継電器、５
ｂ…第１の電圧継電器の接点、６ａ…第２の電圧
継電器、６ｂ…第２の電圧継電器の接点、７ａ…
補助継電器、８ａ，８ｂ…補助継電器駆動電源入
力端子、ＰＴ_１…第１の電圧変成器、ＰＴ_２…第
２の電圧変成器。 FIG. 1 is a connection diagram showing an embodiment of the different phase connection prevention device for an AC circuit according to the present invention. FIG. 2 is an explanatory diagram showing the voltage applied to the voltage relay of the embodiment shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Distribution line, 2... Pole switch, 3a... Main shield breaker, 3b... Contact of main shield breaker, 4... Push button switch for driving main shield breaker, 5a... First voltage relay, 5
b... Contact of first voltage relay, 6a... Second voltage relay, 6b... Contact of second voltage relay, 7a...
Auxiliary relays, 8a, 8b...Auxiliary relay drive power input terminals, _PT1 ...First voltage transformer, _PT2 ...Second voltage transformer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 配電線の活線開放部分の電源側に接続された第
１の電圧変成器と、前記活線開放部分の負荷側に
接続された第２の電圧変成器と、前記第１の電圧
変成器と第２の電圧変成器の２次側の一線を地絡
し、他の対応する端子間にそれぞれ接続される試
験用押釦スイツチの第１の接点と補助継電器の第
１の接点と第１の電圧継電器の直列回路、および
前記試験用押釦スイツチの第２の接点と補助継電
器の第２の接点と第２の電圧継電器の直列回路か
らなる異相検出回路と、前記活線開放部分の接続
手段を制御するため、前記第１の電圧継電器の接
点と第２の電圧継電器の接点の並列回路を前記補
助継電器とその駆動電源の間に挿入して構成した
接続制御回路を有し、前記補助継電器の第３の接
点を、前記活線開放部分の接続手段の駆動回路に
直列に挿入したことを特徴とする交流回路の異相
接続防止装置。 a first voltage transformer connected to a power supply side of a live open section of a distribution line; a second voltage transformer connected to a load side of the live open section; and the first voltage transformer. One wire on the secondary side of the second voltage transformer is grounded, and the first contact of the test push button switch and the first contact of the auxiliary relay are connected between the other corresponding terminals and the first voltage. A series circuit of a relay, an out-of-phase detection circuit consisting of a series circuit of a second contact of the test push button switch, a second contact of the auxiliary relay, and a second voltage relay, and a connection means for the live wire open portion are controlled. In order to 3. A device for preventing out-of-phase connection in an AC circuit, characterized in that three contacts are inserted in series in a drive circuit of the connection means of the live wire open portion.