engine-generator mounted together to form a single piece of equipment. This combination is also called an engine-generator set or a gen-set. In many contexts, the engine is taken for granted and the combined unit is simply called a generator. An engine-generator may be a fixed installation, part of a vehicle, or made small enough to be portable.

Transformer controlled generator

The main stator provides power to generate the excitation field through a rectifier transformer. The transformer combines the voltage and current elements derived from the main stator output to form the basis of an open-loop control system, which is self-regulating. The system itself compensates for the magnitude of the intensity and power factor, maintains short-circuit currents and additionally has good starting characteristics for electric motors. Three-phase alternators are usually controlled by three-phase transformers to improve behavior with unbalanced loads. Optionally, they can be supplied with single-phase transformers to facilitate reconnection to a variety of three-phase and single-phase voltages.

Manual or automatic starter

Manual starter occurs at will, this means that when you need the electricity generated by the generator, it is started manually. Generally, the starter operation is usually carried out using the ignition switch or the starter button of the electronic control unit with all the monitoring functions. When the engine overheats, when there is a lack of fuel or when the engine oil pressure is very low, the control unit will detect it by stopping the engine automatically.

There are automatic centers that work either in manual or automatic mode; This switchboard or electronic panel detects a failure in the electrical supply network, which forces the generator to be started immediately. Usually, in automatic generators, a predisposition box is installed which basically contains the stop relay and the start relay, in addition to having all the alarm and clock sensors installed by the generator in the connector. The automatic panel is installed separately where the network change drive to the generator is installed.