scope:

This specification covers general requirements for single phase, 400 Hertz (Hz) alternating current (a.c.) line voltage requlators intended for shipboard application. The single-phase regulators shall operate in a three-phase bank when connected in a fourwire wye circuit with or without a grounded neutral, or in a delta circuit.

The continuous load capacity of the three-phase bank shall be limited by the maximum line current rating of the single-phase equipment. Equipments shall be of the following ratings as specified (see 6.1):

115 volt system - Equipments are rated at 115 volts (V) root-mean-square (RMS) and the following maximum continuous output line currents: 75 amperes RMS 150 amperes RMS 225 amperes RMS 440 volt system - Equipments are rated at 440V RMS and the following maximum con- tinuous output line currents: 20 amperes RMS 40 amperes RMS