JPS60163835U

JPS60163835U - Solid DC current and disconnection equipment

Info

Publication number: JPS60163835U
Application number: JP5086784U
Authority: JP
Inventors: 丈雄金井
Original assignee: 株式会社東芝
Priority date: 1984-04-09
Filing date: 1984-04-09
Publication date: 1985-10-31

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

Description

[Brief explanation of drawings]

第１図は従来の固体直流しゃ断装置の回路図、第２図は
本考案の一実施例による固体直流しゃ断装置の回路図、
第３図は第２図の回路の制御回路のブロック図、第４図
は第３図の制御回路の動作説明図、第５図は本考案の他
の実施例による固体直流しゃ断装置の回路図、第６図は
第５図の回路の動作説明図である。１１・・・・・・主サイリスタ、１２・・・・・・転流
回路、１３・・・・・・整流器、１４・・・・・・抵抗
器、１５・・・・・・バイアス回路、１６・・・・・・
整流器、１７・・・・・・負荷、１８・・・・・・ゲー
トターンオフサイリスタ、１９・・・・・・変流器、２
１・・・・・・サイリスタゲートパルス発生回路、２２
・・・・・・ターンオフサイリスタオンゲートパルス発
生回路、２３・・・・・・ターンオフサイリスタオフゲ
ートパルス発生回路、２４・・・・・・モノマルチ、２
５・・・・・・モノマルチ、２６・・・・・・レベル検
出器、２７・・・・・・レベル検出器。FIG. 1 is a circuit diagram of a conventional solid-state DC breaker; FIG. 2 is a circuit diagram of a solid-state DC breaker according to an embodiment of the present invention;
Fig. 3 is a block diagram of the control circuit of the circuit shown in Fig. 2, Fig. 4 is an explanatory diagram of the operation of the control circuit shown in Fig. 3, and Fig. 5 is a circuit diagram of a solid-state DC breaker according to another embodiment of the present invention. , FIG. 6 is an explanatory diagram of the operation of the circuit of FIG. 5. 11... Main thyristor, 12... Commutation circuit, 13... Rectifier, 14... Resistor, 15... Bias circuit, 16...
Rectifier, 17... Load, 18... Gate turn-off thyristor, 19... Current transformer, 2
1... Thyristor gate pulse generation circuit, 22
...Turn-off thyristor on-gate pulse generation circuit, 23... Turn-off thyristor off-gate pulse generation circuit, 24... Mono-multi, 2
5...Mono multi, 26...Level detector, 27...Level detector.

Claims

[Scope of utility model registration request]

(1) A main thyristor that cuts off the DC current supplied to the load, a commutation circuit that is connected in parallel to the main thyristor and turns off the main thyristor, and a commutation circuit that is connected in parallel to the main thyristor and turns off the main thyristor. A solid-state DC breaker consisting of a bias circuit that supplies a current to maintain current, the solid-state DC breaker characterized in that an element having a self-extinguishing function such as a gate turn-off thyristor is further connected in series to the bias circuit. .

(2) The solid state DC breaker device according to claim 1, wherein the element having the self-extinguishing function is turned on and off in synchronization with the on and off of the main thyristor.

(3) The solid state DC breaker device according to claim 1, wherein the element having the self-extinguishing function is turned on and off depending on the level of the load current.