This paralleling guide describes and compares control methods of paralleling regulating transformers. The control methods include: master/follower, circulating current, power factor, circulating reactive current and negative reactant methods. This guide presents operating philosophy descriptions, sa...

This guide is primarily concerned with outdoor AC substatons, either air-insulated or gas-insulated. Distribution, transmission and power plant substations are covered by this guide. The intent of the guide is to provide guidance and information pertinent to the basic design of a substation ground g...

Certain electrical, dimensional, and mechanical characteristics are set forth as well ascertain safety features of three-phase, 60 Hz., mineral-oil-immersed, self-cooled, pad-mounted,compartmental-type distribution transformers. These transformers are rated 5 MVA and smaller,with the high voltage li...

This guide sets forth recommendations believed essential for the application of overcurrent protective devices that limit the exposure time of dry-type transformers to short-circuit currents. This guide is not intended to imply overload capability.