1) Performance G1 level - This level is required to be applicable to loads that only require the basic parameters of voltage and frequency to be specified. Generally used for lighting and other simple electrical equipment. 2) Performance G2 level - This level is required to apply to loads that have the same voltage characteristics as the public power system. When the load changes, there may be all...
Fault Currents and Short Circuit Decrement Curves A generating set operating in service will be connected to a distribution system serving the connected load[s]. This distribution system has impedance, and so will introduce a value of Z between the alternator terminals and the point at which the ‘fault’ has occurred. The ‘fault’ will also have a value of Z, and if the nature of the ‘fault’ is an ‘...