JFP 400KW (500KVA) Shangchai Open-Frame Diesel Generator Set This 400KW (500KVA) open-frame diesel generator set is powered by a genuine Shangchai inline six-cylinder heavy-duty turbocharged & after-cooled water-cooled industrial diesel engine, matched with a high-efficiency brushless synchronous alternator. Designed in a classic open-frame structure without a silent canopy, the unit features outstanding natural heat dissipation, rational layout, and easy-access maintenance.