Generator Protection

Generator Protection GENERATOR AND ITS PROTECTION             The core of an electrical power system is the generator. There are power units based on steam, gas, naphtha, water power, diesel engine drive and wind mills. The range of size extends from a few hundred KVA (or even less) for engine-driven and hydro sets up to turbine driven sets exceeding 500MVA in rating.            ...

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Comparision of Direct-on-line (DOL) and Star-delta Motor Starting

Motor starting methods Direct-on-line starting (DOL) As the name suggests, direct-on-line starting means that the motor is started by connecting it directly to the supply at rated voltage. Direct-on-line starting, (DOL), is suitable for stable supplies and mechanically stiff and well-dimensioned shaft systems – and pumps qualify as examples of such systems. Line diagram for Direct-on-line motor starting Where: K1 –...

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