The "portable" generators are single phase machines, without brushes, with a high operating reliability, as a result of accurate design and years of research and experience in the construction of electric machines.
No maintenance is required because there are neither collectors nor sliding contacts. Special care has been taken about the design and performance in order to improve their connection to the engine, according to any constructive shape forecast.
The portable generators are manufactured according to the following standards: CEI 2-3, EN 60034-1, IEC 34-1, VDE 0530, BS 4999-5000, NF C 51-111, CAN/CSA - C 22.2 N°100-95; furthermore, they agree with the following European Community standards: 73/23, 89/392, 89/336.