A standby generator, mostly used by industries, is also called the alternator by the electrician. This type of generator is a 3-phase synchronous electrical machine. A synchronous electrical machine always has a stator and a rotor. The shape of the stator compound in it is just the same with the one in the induced-electrical machine. This generator has a single-layer and a double-layer for its compound. While the 3-phase stator compound of this generator forms the joints shaped star (Y) and triangle (?). Yet, the rotor compound usually forms a shape of salient or cylinder (or Non-Salient).
In some types of this generator, sometimes there is a short-pitched winding compound which caused fraction of poles in the generator. The Salient-styled rotor is used for generating electricity with the low or medium starting rotation speed. It has a small-sized diameter with short axis (horizontal slide). While the cylinder-styled rotor has a longer axis, used for generating electricity with a high-speed starting rotation speed, yet to prevent an excessive rotation speed it still only has a small diameter size.
Before buying, operating, or maintaining a standby generator, these basic information of what constructs it are really important to prevent damage or wrong treatment toward the machine. To gain more knowledge about the generator, it is much recommended that we read the manual of the machine or the books explaining about electrical machines.
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