| 摘要 |
<p>PURPOSE:To prevent a circuit for applying a conversion command from erroneously operating by selecting smaller deviation signal of two systems by a low value priority circuit. CONSTITUTION:A generated voltage of a synchronous generator 10 is stepped down by instrument transformers 11a, 11b, and input to comparators 12a, 12b. The comparators 12a, 12b compare input detected voltages with a set voltage set by a setter 13, and output deviation signals. A low priority circuit 14 selects lower value of the input deviation signals, and supplies it to a gate generator 15. The generator 15 supplies a pulse signal based on the input deviation signal to an exciting thyristor rectifier 15.</p> |
