standards / manuals / guidelines for small hydro development - AHEC

• Permission from nearest grid substation• Proper working of‣ Communication system‣ AC Power‣ DC Power‣ Firefighting system‣ Cooling water system‣ Drainage & dewatering system‣ H.S. lubrication system‣ L.P. & H.P. compressed air system‣ Protection system2.2.1 Check List for Starting of MachineThe staff responsible for the operation should be well conversant with technicaldetails and importance of following:-• Intake gates bye pass gates & forebay• Inlet valves• Turbine• Generator• Generator Transformers• Switchyard• Synchronizing with grid• Closure of machine• Emergency closing of machine• Importance of log sheets2.2.2 MechanicalOn Intake• Check bye pass gate are not mechanically locked and all valves are in okeyposition• Check position of intake gate• Check position of stop log gates• Check filling line valve of penstock• Check supply to gates is O.K.Inside P.S.(i) Inlet valve:-• AC power for pump operation• HP compressed air• Locking pin position• Level and pressure in OPU(ii)Others:-(a) Check valves:• Check spiral drain valve is closed• Check D.T. drain valve is closed• Position of stainer valves ensure water flowing in cooling pipes• Gland seal valve openAHEC/MNRE/SHP Standards/ E&M Works – Guidelines for Operation and Maintenance of Small Hydropower Station 4