Generator and power output components include the alternator (generator end), automatic voltage regulators (AVRs), stators, rotors, current transformers, and associated control electronics. In power generation applications, the generator end converts mechanical energy from the Cummins engine into electrical output. The AVR regulates output voltage by controlling excitation current to the rotor. These components are critical to power quality and must be correctly specified for the generator frame size, voltage rating, and power output. Faults in the generator end or AVR typically present as voltage instability, frequency fluctuations, or complete loss of electrical output.
AMS Parts supplies a wide range of generators & power components for Cummins engines used in power generation, marine, and industrial applications. Browse a selection of available parts below, or contact us for specific requirements.
Below is a selection of generators & power parts we supply. Use the search bar above to find a specific part number, or request a quote. You can also reach us directly at [email protected] or +44 7776 800169.
The AVR controls the generator's output voltage by adjusting the excitation current supplied to the rotor windings. A failing AVR can cause voltage fluctuations, over-voltage or under-voltage conditions, or complete loss of output. AVR replacement requires matching the correct model to the generator frame and specification.
No. Stators, rotors, and associated components are specific to the generator frame size, voltage configuration, and power rating. Even within the same manufacturer's range, components are not interchangeable between different frame sizes.
Common causes include insulation breakdown from overheating, moisture ingress, winding contamination, short circuits, or mechanical damage from bearing failure. Regular insulation resistance testing (megger testing) can help detect winding deterioration before a complete failure occurs.
