Refer to the National Electrical Code or the working drawings when necessary. Where applicable, responses should be written in complete sentences. A 300-kilovolt-ampere transformer bank consisting of three 100-kilovolt-ampere transformers has a 3-phase, 480-volt delta primary and a 120/240-volt, 3-phase, 4-wire delta-connected secondary. For problems 1 through 4 show calculations and/or source of information. 1. What is the proper rating of the fuses to install for overcurrent protection of the secondary? 2. What is the kilovolt-ampere of the bank if one of the transformers is removed?

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Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.