IS200TVIBH2BBB
IS200TVIBH2BBB
IS200TVIBH2BBB
sequential control sub-group items:
High voltage start/standby power sub-item: The sub-item includes the start/standby transformer high voltage side circuit breaker, disconnecting switch, 6kV side circuit breaker, start/standby transformer on-load voltage regulating switch, etc.
Sub-item of low-voltage factory common section: The sub-item includes 6kV side circuit breaker, 380V side circuit breaker and 380V side circuit breaker of the transformer connected with 6kV.
5 Configure the backup monitoring device
According to the operation experience of 300MW units, after the use of DCS in the machine and furnace control of Jiujiang, Xinyang and Yiyang power plants with CRT and keyboard monitoring as the center, the display instrument, operator/switch and alarm window on the control panel are reduced as much as possible. The only backup monitoring equipment retained is:
(1) All analog signals are displayed in DCS, and only a small amount of display instruments are kept on the disk.
(2) Only keep a small number of important electrical switches and cancel the electrical control panel/disk, the control function is realized in DCS. As to whether the manual synchronous switch should be retained or not, it
