Field notes
Technical notes
Fault-finding and specification guides written for people who work on generating sets — not marketing copy with a part number attached.
Are genset engine parts the same as tractor engine parts?Within one engine family, core wear parts such as pistons, liners, bearing shells and gasket sets often share part numbers across applications. Fuel injection pumps, governors, cooling packages and flywheel housings usually do not, because a genset runs at constant speed and drives an alternator.5 minHow to size an AMF panel for a diesel generating setSize an AMF panel from the set rating in kVA and the full-load current at site voltage, then select breakers and changeover rated above that with margin for the prospective fault level. A 125 kVA set at 415 V draws about 174 A, so a 200 A changeover is the usual choice.7 minGenerator runs but produces no voltage: how to find the causeWhen a set runs at rated speed but produces no output, the fault is almost always in the excitation circuit. Check residual magnetism, then the rotating rectifier diodes, then the AVR — in that order, because replacing the AVR first is the most common wasted purchase in this trade.6 min