JPH0168639U

JPH0168639U -

Info

Publication number: JPH0168639U
Application number: JP1987163486U
Authority: JP
Priority date: 1987-10-26
Filing date: 1987-10-26
Publication date: 1989-05-02

Description

[Brief explanation of the drawing]

第１図は本考案の実施例によるしや断器の操作
制御装置の回路図、第２図は第１図の回路の要部
を示す回路図、第３図は第１図の装置の動作特性
図、第４図は本考案を適用するしや断器の操作装
置の展開構成図である。ＣＳ１……しや断器投入指令スイツチ、ＣＳ２
……しや断指令スイツチ、５２Ｙ，６０……反復
防止用継電器、５２Ｙｂ……反復防止用継電器の
常閉接点、５２ａ，５２ｂ……しや断器の補助接
点、５２ｃ……投入コイル、５２Ｔ……引き外し
コイル、１００Ａ……第１の電流検出器、１００
Ｂ……第２の電流検出器、１０１ａ，１０１ｂ…
…電流検出巻線、１０２……整流器、１０３……
限流抵抗、１０４，１０５……発光ダイオード、
Ａ……投入回路、Ｂ……投入バネ蓄勢回路、Ｃ…
…しや断回路。 Fig. 1 is a circuit diagram of an operation control device for a shield breaker according to an embodiment of the present invention, Fig. 2 is a circuit diagram showing the main parts of the circuit shown in Fig. 1, and Fig. 3 is an operation of the device shown in Fig. 1. The characteristic diagram, FIG. 4, is a developed configuration diagram of the operating device for the shear breaker to which the present invention is applied. CS1...Shiya breaker closing command switch, CS2
...Shrink breaker command switch, 52Y, 60...Repeat prevention relay, 52Yb...Repetition prevention relay normally closed contact, 52a, 52b...Shrink breaker auxiliary contact, 52c...Closing coil, 52T ...Trip coil, 100A...First current detector, 100
B...Second current detector, 101a, 101b...
...Current detection winding, 102... Rectifier, 103...
Current limiting resistor, 104, 105... light emitting diode,
A... Closing circuit, B... Closing spring energy storage circuit, C...
...Shiya disconnection circuit.

Claims

[Claims for Utility Model Registration] The cutting operation and the closing operation of the cutting switch are performed via a link mechanism by the spring forces of the cutting spring and the closing spring, respectively, and the stored energy of the closing spring is applied. In an operation control device for a shield/breaker operated by a spring energy storage motor, there is a closing command switch that issues a closing command, and an energization process in the closing operation process of the shield/breaker in response to the closing command from the closing command switch. a closing circuit for controlling the closing operation, including a normally closed contact of a repeat prevention relay, and a closing coil connected in series to the closing command switch via the normally closed contact of the repeat prevention relay; It includes a shear disconnection command switch that issues a disconnection command, and a tripping coil connected in series to the sheath disconnection command switch, and has a shear disconnection circuit that controls the shear disconnection operation, and a sheath disconnection circuit that controls the shear disconnection operation; a first current detector connected in parallel with the switch and in series with the closing coil; and a first current detector connected in parallel with the disconnection command switch of the disconnection circuit and in series with the tripping coil. the first and second current detectors respectively flow only the current in each coil to the light emitting diode when the respective command switches are off, and when the command switches are on; a first current circuit that allows only a current to flow through the command switch when the command switch is activated; a second current circuit that detects the current that flows through the command switch of the first current circuit and causes a detected current to flow through the light emitting diode; 1. An operation control device for a shield breaker, comprising: a light receiving section that receives light from a light emitting diode and outputs a predetermined voltage signal according to the amount of the light.