Awarded

10 Year overhaul of Thames Barrier DRUPS Device no. one

Descriptions

Alternator , • Fully disassemble unit and remove from site , • Inspect alternator in as received condition , • Dismantle machine to component level checking for any signs of wear , • Steam clean and stove all existing stator and rotor windings , • Check all bearing housings/seating’s for size and tolerances , • Check rotor concentricity , • Check balance rotor , • Carry out all relevant static electrical tests , • Reassemble machine fitting three new bearings , • Paint machine , • Delivery of alternator back to site for installation and site commissioning , KIN , • Test stator windings against mass and withstanding voltage check , • Stator slot wedge for sticking check , • Lashing and wedging for the winding heads check , • Check of the rotor windings against mass and with potential voltage , • Pole check for mechanical sticking , • Measuring of the bearing seat , • Varnishing of stator windings with surface protection , • Assembly with new bearings , • Test run, incl. bearing heat run , • Check of regulation at test grid , • Final electrical testing , • Vibration testing , • New main rotor incl. shaft and sleeve to be supplied , • New exciter rotor to be supplied , Other Works , • Radiator Clean , • Coolant Change