An engine (or other motor) capable of producing a minimum of 6.5 hp @ 7,000 rpm is required to directly drive the 150A ZENA power generator.If using pulleys and a V-belt to drive the power generator, as is usually the case when the power generator is attached to a drive engine, the ratio of the pulley diameters used will effect the minimum engine hp and speed specifications.
Generally, our customers report that 13-20 HP gasoline engines (which are usually factory equipped with electric start and with built-in alternators) of the type often found on riding mowers generally make good drive engines. Kohler, Robin, and Onan engines reportedly do particularly well, since they are frequently factory equipped with heavier flywheels. And, we have had many customers report that Honda's electric start 11 HP (and larger) engines make exceptionally good power sources.
Our 200A power generators require approximately more power than the 150A power generator (about 9 HP @ 7,000 rpm for direct drive). Otherwise, all of the comments relating to our 150 amp model also apply to our 200 amp models.
Feel free to call us for specific information and recommendations -- or, if you have questions about a specific application that you have in mind.
Remember, when working with lower hp engines, flywheel mass must always be great enough to insure smooth operation under maximum load.
Customers report that there are many very inexpensive used riding mowers on the market which have worn out mowing equipment, but which have perfectly good engines.
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