Cooling fans vibration monitor
May 1st 2008 Cooling fans on CCGT power
stations are a solution for the
removal of unwanted energy. They
also play a critical role in the overall
generation process. Fans are
driven through a motor and
gearbox combination, but gearbox
failure is common through general
wear and the imbalance produced
through fan rotation.
Trending of vibration levels on
the gearbox enables plant
engineers to plan inspection and
maintenance. Providing shutdown
protection in the event of excessive
vibration is also key.
Sensonics' DN2601 dual
vibration monitor was the solution
for EGAT's Wangnoi power plant in
Thailand. The site has three 600MW
combined cycle blocks, each with
eight cooling fans. A DN2601
monitors each fan in combination
with ICP type accelerometers,
providing warning and shutdown
alarm facilities in combination with
4-20mA process signals fed to the
plant wide DCS for trending. More articles from Sensonics Ltd: | 
