PROTECTION RELAY SYSTEM

PROTECTION RELAY SYSTEM

PROBLEM TO BE SOLVED: To solve the problem of the conventional sequential shield function method that, since the order of shielding is decided in advance, shielding of lines other than an accident line is highly possible, resulting in taking much time in removing the accident. SOLUTION: The current...

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Hauptverfasser: OKAZAKI MASATO, INABA NAOTO, HIRATA YOSHINORI, HORI MASAO, KITA TAKANARI, NISHIDA HIROSHI
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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creator OKAZAKI MASATO
INABA NAOTO
HIRATA YOSHINORI
HORI MASAO
KITA TAKANARI
NISHIDA HIROSHI
description PROBLEM TO BE SOLVED: To solve the problem of the conventional sequential shield function method that, since the order of shielding is decided in advance, shielding of lines other than an accident line is highly possible, resulting in taking much time in removing the accident. SOLUTION: The current of a line connected to a bus line of a high resistance ground grid is detected, and the line with high possibility of accident is preferentially selected and shielded while an accident continues. Thus, the duration time of accident is shortened and the power outage range is narrowed for easy restoration of the grid. COPYRIGHT: (C)2005,JPO&NCIPI
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subjects CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
title PROTECTION RELAY SYSTEM
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