JPH0253228U - - Google Patents

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Publication number
JPH0253228U
JPH0253228U JP13240588U JP13240588U JPH0253228U JP H0253228 U JPH0253228 U JP H0253228U JP 13240588 U JP13240588 U JP 13240588U JP 13240588 U JP13240588 U JP 13240588U JP H0253228 U JPH0253228 U JP H0253228U
Authority
JP
Japan
Prior art keywords
circuit breaker
distribution system
power distribution
output signals
automatically
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13240588U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13240588U priority Critical patent/JPH0253228U/ja
Publication of JPH0253228U publication Critical patent/JPH0253228U/ja
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Description

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

第１図は本考案の一実施例に示す装置構成図、
第２図は実施例におけるマイクロプロセツサ７の
処理回路図、第３図は配電線の保護系統を例示す
る図である。 ２１，２５…しや断器、４１，４５…過電流保
護継電器、７…マイクロプロセツサ、８…出力リ
レー。 FIG. 1 is a diagram showing the configuration of an apparatus according to an embodiment of the present invention.
FIG. 2 is a processing circuit diagram of the microprocessor 7 in the embodiment, and FIG. 3 is a diagram illustrating a protection system for power distribution lines. 2 1 , 2 5 ... circuit breaker, 4 1 , 4 5 ... overcurrent protection relay, 7 ... microprocessor, 8 ... output relay.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数のしや断器とその入切を過電流検出によつ
て操作する継電器を多段接続した配電系統におい
て、前記各継電器は下流の各しや断器の入切状態
信号と各継電器の動力出力信号を取り込み、事故
電流検出時に前記動作出力信号の全部が得られか
つ前記入切状態信号の少なくとも１つがしや断器
の開放になるときに自己しや断器のトリツプを行
わず、前記動作出力信号の全部が得られないとき
に自己しや断器のトリツプを行う処理手段を備え
たことを特徴とする配電系統の保護継電装置。 In a power distribution system in which a plurality of shield breakers and relays whose on/off operations are operated by overcurrent detection are connected in multiple stages, each of the relays receives an on/off state signal of each downstream shield switch and a power output of each relay. When all of the operation output signals are obtained when a fault current is detected and at least one of the on/off state signals opens the circuit breaker, the circuit does not trip the circuit breaker automatically and performs the operation. A protective relay device for a power distribution system, characterized in that it is equipped with a processing means that automatically trips a circuit breaker when not all output signals are obtained.
JP13240588U 1988-10-11 1988-10-11 Pending JPH0253228U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13240588U JPH0253228U (en) 1988-10-11 1988-10-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13240588U JPH0253228U (en) 1988-10-11 1988-10-11

Publications (1)

Publication Number Publication Date
JPH0253228U true JPH0253228U (en) 1990-04-17

Family

ID=31389335

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13240588U Pending JPH0253228U (en) 1988-10-11 1988-10-11

Country Status (1)

Country Link
JP (1) JPH0253228U (en)

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