on the process of unit start, differential expansion is too large, the driver should do the following work:

⑴ check if the main steam temperature is too high, contact the boiler operating personnel, appropriate lower steam temperature.

⑵ the unit in a stable speed and stability under a load of warm-up.

⑶ appropriate increase in condenser vacuum, reducing steam flow.

⑷increase the cylinder and the flange heater steam amount with, the rapid expansion of the cylinder