THYRISTOR STARTER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 20, 2015
app pub date -
Aug 29, 2012
filing date -
Aug 29, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
This thyristor starter includes a control angle operation portion including a function or a table showing relation between a rotation speed of a synchronous machine and a phase control angle of an inverter and finding a phase control angle having a value in accordance with the rotation speed of the synchronous machine found by a speed operation portion. The phase control angle varies from a minimum value to a maximum value in accordance with the rotation speed of the synchronous machine, and a rate of increase in phase control angle relative to the rotation speed of the synchronous machine is varied in a plurality of steps in accordance with the rotation speed of the synchronous machine.
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