| 摘要 |
FIELD: hydroelectric power engineering. SUBSTANCE: plant has transformer units in the form of single, enlarged, or combined units connected on primary end to supply mains with secondary windings connected to reversible electrical machines whose circuits incorporate strip of switches with forward and reverse phase sequence on side of phase leads and with disconnecting switches connected in series with them, and also starting bus system coupled through switching devices to strip of switches; novelty is that mentioned coupling is made in the form of strip of switching devices with forward and reverse phase sequence one of whose leads is connected to starting bus system and second lead is connected to point of connection of disconnecting switch and switch with direct phase sequence on strip of switches mounted on side of phase leads of reversible electrical machines; switching device with reverse phase sequence coupled through some leads to starting bus system is connected through other leads to point of connection of strip of switches and phase leads of reversible electrical machines. EFFECT: improved circuit arrangement of pumped storage plant due to provision for starting any reversible hydroelectric set from adjacent set using starting bus system which improves its efficiency and reliability when reversible machine runs as pump. |
