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 ‘...
Electric Motor Absorbed Power Estimation Very often one needs to know the power absorbed by say, a pump or a carrier or fan or some other equipment driven by an electric motor. If one has a three-phase electric power meter and one measures the three phase currents and voltages then the power can be calculated directly. Most often however all one has is the current reading from the MCC panel ammete...