electric power systems have three main components - generation,
transmission and distribution. Electric power is generated at the power
generating stations by synchronous machines that are usually driven
either by steam or hydro turbines. Most of the power generation takes
place at generating stations that may contain more than one such
alternator-turbine combination. Depending upon the type of fuel used,
the generating stations are categorized as thermal, hydro, nuclear etc.
Many of these generating stations are remotely located. Hence the
electric power generated at any such station has to be transmitted over a
long distance to load centers that are usually cities or towns. This is
called the power transmission. In fact power transmission towers and transmission lines are very common sights in rural areas.
Modern day
power systems are complicated networks with hundreds of generating
stations and load centers being interconnected through power
transmission lines. Electric power is generated at a frequency of either
50 Hz or 60 Hz.
In an
interconnected ac power system, the rated generation frequency of all
units must be the same. In India the frequency is 50 Hz.
0 Response to "Introduction to Power System Analysis"
Post a Comment