JPS5953634U - Neutral line fault detection device for DC transmission system - Google Patents

Neutral line fault detection device for DC transmission system

Info

Publication number
JPS5953634U
JPS5953634U JP14997282U JP14997282U JPS5953634U JP S5953634 U JPS5953634 U JP S5953634U JP 14997282 U JP14997282 U JP 14997282U JP 14997282 U JP14997282 U JP 14997282U JP S5953634 U JPS5953634 U JP S5953634U
Authority
JP
Japan
Prior art keywords
output
detection device
transmission system
detector
fault detection
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
JP14997282U
Other languages
Japanese (ja)
Inventor
金子　精二
後藤　輝雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14997282U priority Critical patent/JPS5953634U/en
Publication of JPS5953634U publication Critical patent/JPS5953634U/en
Pending legal-status Critical Current

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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

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

第１図はこの考案による直流送電系統の中性線地絡故障
検出装置の実施例のブロック図、第２図及び第３図は上
記直流送電系統の線路故障の種類を示す図である。 図において、７・・・中性線、８・・・故障検出用電源
、９・・・電流検出器、１０・・・接地回路、１１・・
・過電流検出器、１２．１４・・・タイマー、１３・・
・不足電流検出器、１５・・・オア素子。なお、図中、
同一符号　　　７は同−又は相当部分を示す。FIG. 1 is a block diagram of an embodiment of the neutral wire ground fault detection device for a DC power transmission system according to this invention, and FIGS. 2 and 3 are diagrams showing types of line faults in the DC power transmission system. In the figure, 7...neutral wire, 8...power supply for failure detection, 9...current detector, 10...grounding circuit, 11...
・Overcurrent detector, 12.14...Timer, 13...
- Undercurrent detector, 15... OR element. In addition, in the figure,
The same reference numeral 7 indicates the same or equivalent part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中性線の非接地端と大地間に挿入された故障検出用電源
、中性線の接地端回路に挿入された電流検出器、該電流
検出器の出力が設定値以下である場合に出力する不足電
流検出器、上記電流検出器の出力が上記設定値より大で
ある所定値を超えた場合に出力する過電流検出器を具え
、この過電流検出器の出力はタイマーを通して取出され
ることを特徴とする直流送電系統の中性線故障検出装置
。A power supply for failure detection inserted between the non-grounded end of the neutral wire and the ground, a current detector inserted in the grounded end circuit of the neutral wire, and an output when the output of the current detector is below a set value. An undercurrent detector, an overcurrent detector that outputs an output when the output of the current detector exceeds a predetermined value that is greater than the set value, and the output of the overcurrent detector is taken out through a timer. Features: Neutral wire failure detection device for DC power transmission systems.
JP14997282U 1982-10-01 1982-10-01 Neutral line fault detection device for DC transmission system Pending JPS5953634U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14997282U JPS5953634U (en) 1982-10-01 1982-10-01 Neutral line fault detection device for DC transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14997282U JPS5953634U (en) 1982-10-01 1982-10-01 Neutral line fault detection device for DC transmission system

Publications (1)

Publication Number Publication Date
JPS5953634U true JPS5953634U (en) 1984-04-09

Family

ID=30332753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14997282U Pending JPS5953634U (en) 1982-10-01 1982-10-01 Neutral line fault detection device for DC transmission system

Country Status (1)

Country Link
JP (1) JPS5953634U (en)

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