ABSTRACTSR-esearch on vibration protection strategy of large rotating machinery at hydropower station

The vibration protection strategy of large rotating machinery in thermal power and petroleum industry hasbeen applied for many years, but it still develops without breakthrough in hydropower unit operation due to thecomplication of its operation and vibration. According to this situation, the vibration protection strategy is proposedbased on the analysis of unit vibration mechanism. The vibration protection strategywith two functions of timelyprotection and fault diagnosis are of great engineering application value.