| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for a power distribution switchgear preventing a supply defect caused by incorrectly opening a main circuit of the power distribution switchgear and preventing a failure such as an occurrence of an unnecessary system loop due to an incorrect power supply, by preparing a self-repair function in advance in consideration of a case in which a memory loses stored information of an excitation output to the main circuit. <P>SOLUTION: With reference to a monitoring result obtained by a switchgear main circuit excitation monitoring means 3<SB>-115</SB>and stored data stored in a pair of main and sub main circuit excitation output state storages 3<SB>-121A</SB>, 3<SB>-121B</SB>, the main circuit excitation monitoring result and the main circuit excitation output state are compared, and, in a case of a mismatch, according to a truth table for repairing an incorrect control output to a main circuit contact 2<SB>-1</SB>, the data stored in the pair of the main and sub main circuits excitation output state storages 3<SB>-121A</SB>, 3<SB>-121B</SB>is repaired, and a main circuit contact drive circuit 2<SB>-2</SB>is driven from a switch main circuit control output means 3<SB>-111</SB>via an excitation output circuit 3<SB>-131</SB>using the repaired data. <P>COPYRIGHT: (C)2011,JPO&INPIT |
