"GE" DC Generators are available in Shunt/Series/ Compound versions. Specially designed, self-excited /separately-excited and self-regulated in screen protected drip-proof enclosure, available in Single Phase and Three Phase output at 1500 RPM,  Manufactured  under strict quality control, Specially designed heavy-duty with low temperature rise , Copper graphite carbon brushes, better air circulation and greater efficiency with + / - 5% Voltage regulation.
kw Ratings -0.18kw till 30kw.
A separate exciter motor can also be coupled to adjust the excitation of the Generator under loaded conditions to maintain the output voltage to the desired value.