Electrical Adda

Minimum Protection for EHV Lines  : Overcurrent & Earth Fault Relay. Distance Protection Relay. Minimum Protection for Transformer : Overcurrent & Earth Fault Relay at Primary  & Secondary Side. Restricted Earth fault . Differential protection. Gas pressure Relay, WT, OT Relay. Over Voltage protection . Minimum Protection for HV Feeders : Overcurrent & Earth Fault Relay. Translay relay. Minimum Safety Working Clearance of 2.6 mts to be maintained in between bare conductors & live parts in 11kV lines . Different Transmission line Voltages & there Distances. Transmission line voltages Transmission line Distances 11 KV (10- 30 km ) 33 KV ( 30 - 50 Km) 66 KV ( 50 - 100 Km) 132 KV ( 100 - 200 Km) 220KV ( 200 - 300 Km) 400 KV ( 200 - 300 Km)

DG CHECKS: A CHECK (Daily/ Weekly) : Check Engine oil Level in DG set. Radiator coolant level. Check Diesel Day tank level. Check Battery voltage, Distilled water level . Check all Air Filters, Breathers, water Separator condition check V belt Condition. check Cleanliness of DG. B CHECK (Every 300 hrs or Every 6 Months) : Change Engine oil. Change Oil filters, Fuel Filters, Bypass Filters. Change Air filters, Water separator. Radiator Cleaning with Chemical . Clean the Dg set. C CHECK (Every 1500 hrs or Every 1 Year) : Repeat A & B check . Check all Electrical Equipment Condition Check Pollution Level. Change Water Separator  Replace Breathers. Inspect Alternator Starter . Change All Filters. D CHECK (Every 6000 hrs or Every 2 Year) : Repeat A & B check . Clean & Calibrate Fuel Injectors If Required. Turbocharger Service. Cylinder Head service. Check Fuel Pump Calibration. Change Coolant , Descale Cooling s