Seeking help regarding turbine control issues! ! !
Thread Content
It is unclear what the relationship is between 3500 505 203 and the Tricon PLC, which are involved in turbine control; there are four such devices in total. How do they communicate with the instruments on the field shafting? Who can explain it clearly? For example, how is it controlled? How to connect? What is the logic?
3500 is the Bentley monitoring system, while 505 and 203 are modules within the 3500 system. In the Conjeson unit control system, ITCC and 3500 are in a communication relationship.
Send it to my email; I’ll send you a diagram of their relationship when I have time
Thank you! Once it’s available on PC, I’ll give it a high rating!
8538074@qq.com Thank you so much!
I’m not quite sure about the relationship between 505 and 203 and the Tricon system; I only know that they are involved in overspeed protection. As for 3500, it is responsible for protecting against shaft vibration and displacement. So I’d like to clarify this relationship!
And 3500 is responsible for shaft vibration and displacement protection； 505 is responsible for load control (valve position control or power-frequency control, especially during the turbine acceleration process), extraction steam heat load control, and other auxiliary controls; it also communicates with the DCS, enables online adjustment of control parameters, and provides overspeed protection functions ； The key point for 203 is overspeed protection ； 3500, 505, and 203 all communicate with the Tricon; yours is designed by Hangyang, right? It’s exactly the same as ours.
It seems to me that the speed control is handled by the Tricon PLC 203 monitors for overspeed protection; when a two-out-of-three overspeed condition occurs, it sends a signal to the Tricon, and then interlocks are activated?
The speed control is set at 505; the Tricon is responsible only for interlocks. What is sent to the Tricon by 203 is the signal after selection, and it is used for the Tricon’s interlock functions； However, 203 also has a direct mechanical interlock output.