Abstract: Some problems, which are existed in design and construction of condenser vacuum measurement sampling, were introduced. Taking the vacuum measurement of 600MW unit of Sichuan Guang’an Power Generation Corporation Limited as example, the feasibility of the multipoint converged sampling reformation scheme, the goal of which is to increase the measuring accuracy of the condenser vacuum, was demonstrated. After the scheme had been implemented, the measurement accuracy of the condenser vacuum was increased, which provides certain convenience for the unit operators to adjust the unit efficiency; and favorable effect was obtained. 

Key words: multi-point converged sampling, condenser vacuum, measure, accuracy, reformation scheme