Abstract: The influence of water level control of condenser hot well on the unit operation was expounded. The harms of the too higher or too lower water level of the condenser was analyzed. According to the comparison of the condenser water level measurement schemes, combining with practical field situation of Huaneng Weihai Power Plant project phase III, the water level measurement scheme of condenser hot well was reformulated, and the control strategy of condenser water level automatic adjustment system was put forward. The improved measurement scheme and control strategy can control the water level of condenser hot well stably, shorten the oscillation period of the regulating loop; and ensure the safe and stable operation of the unit.

Key words: condenser, water level of hot well, measurement, automatic adjustment, control strategy