ST series generators are mainly designed to serve as power generating unit of small capacity, which supply electricity for lighting purpose in ships, for house-hold electric devices used in towns or villages. The construction of the generators is of drip-proof, salient pole rotating field, self excitation and constant voltage type. The alternator interior is used with high quality electric magnetic and electrical materials. Stator insulation is class B. These generators are elegant in appearance, tight in construction and easy maintain. IEC standard are adopted on dimension, these dimension are suitable for using in Australia, Europe, America and other countries with the end covers to be model B.