| 摘要 |
PURPOSE:To make operation continuance within the specified value in a condenser port cooling water temperature difference and at an optimum vacuum performable, by setting turbine load and reducing it when a circulating water pump is tripped. CONSTITUTION:Trip signals T1 and T2 or a cooling water reducing signal out of each of signal generators 7a and 7b installed in circulating water pumps 6a and 6b are outputted, turning a contact 15 to ON, thus control is started. And, optimum turbine load is set by a calculator 13, which usually calculated the optimum turbine load for a cooling water quantity with condenser inlet cooling water temperature by detector 8, and opening of a turbine load control valve 2 to the load is determined by a calculator 14. In addition, a turbine load control valve opening command is compared with the actual opening out of a turbine load control valve opening generator 9 by a comparator 12, and with the deviation signal, a signal is given to a turbine driving device 10 through a recording controller 11 whereby control takes place. |
