standards / manuals / guidelines for small hydro development - AHEC

2.2.3 Electrical• Air seal valve closed• Top cover drain system okey(b) Check levels:• Pressure accumulator (OPU)• Turbine Guide bearing• Lower Guide bearing• Upper Guide bearing• Thrust bearing(c) Check pressures:• Spiral casing• OPU• Stator cooling water pressure• Thrust bearing UGB, LGB• Sealing water pressure• Servo motor Pr. Gauge• Air pressure (brakes)(d) Check working of systems• Top cover drain• Oil leakage unit• Oil cooling unit• Oil pressure unit• Brakes• Position of CO 2 batteries• Guide vane lock on or off• Check jacking/dejacking of m/c• Check flow relays• Check emergency slide valve reset• Check working of ventilation system• D.C. System• Grid Power• DG Set power• Event logger• Disturbance loggerCheck list of Generator• Brake system• Cooling water for bearings• Generator fire fighting• AVR condition• DC supply for field flashing• Oil levels in bearings• IR values• Jack position• H.P. lubrication condition• Check earth link for bus ductAHEC/MNRE/SHP Standards/ E&M Works – Guidelines for Operation and Maintenance of Small Hydropower Station 5