Power supply industry
MONITORING A GENERATOR IN A POWER STATION
POWER SUPPLY SECTOR / ALIGNMENT OF LARGE PUMP SHAFTS
During maintenance works on the pumps of the cooling circuit of a cooling tower in nuclear power plants, quick and precise methods for the required alignment works are indispensable. Large electro motors with vertical axis drive evenly large centrifugal pumps situated one floor below.
- The horizontal positions of the connecting lines between the bearing faces on the bearing ring for the stator must be checked. The flatness and the horizontal position of the bearing ring must be assured.
- The pump housing, one floor below, must be adjusted horizontally as well.
- The center points of the pump shaft and the drive shaft of the motor must be aligned to each other in order to assure that the transmission shaft can work free of any bending moment.
The requirements regarding long term monitoring of dams are continuously increasing. Where it was enough earlier to carry out periodic measurements, today more and more permanent monitoring is required.
The changes in inclination in both directions (mountain <-> mountain and water <-> air) of a dam shall be monitored continuously.
MONITORING OF AN OFFSHORE WIND TURBINE TRIPOD DURING PLACEMENT AND ANCHORING IN THE SEA
An offshore wind turbine requires a stable and exactly horizontal base. To achieve this, the tripod, on which afterwards the wind turbine will be mounted, must be monitored during the anchoring process.
The position of the Tripod must be monitored during the anchoring rocess with inclination sensors mounted at the upper end of the Tripod. The sensors must withstand the high accelerations occurring during the ramming process. The measured data must be transmitted wireless to the boat controlling the whole process.