Reception and Distribution of Safe Harbor Energy in Baltimore

This paper describes how the energy from the new Safe Harbor line is received in Baltimore and how it fits into the total energy supply of steam and hydro. Safe Harbor energy being 60 cycles required a change in frequency from 62½ cycles and is tied in to the 25-cycle system by a 30,000-kw. frequency changer, the characteristics and control of which are described. A bank of surge-proof transformers of 126,000-kva. capacity steps down Safe Harbor energy to 33 kv., handled in a new outdoor substation. This 33-kv. system ties in to both Westport and Gould St. generating stations and through them to the transmission system to Baltimore substations and surrounding territory.