Basic Electrical & Electronics Engineering-UNIT 3.ppt
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Sep 21, 2024
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About This Presentation
BEEE Unit-3 JNTUK syllabus.
Size: 4.56 MB
Language: en
Added: Sep 21, 2024
Slides: 45 pages
Slide Content
What is a conventional source of energy?
When we cannot reuse a source of energy after using it once we
call them “conventional sources of energy” or “non-renewable
energy resources”. They are the most important conventional
sources of energy
Ex:Coal,Petroleum,Natural gas,Nuclear energy
etcWhat is a Non-conventional source of
energy?
These are energy sources that are continuously produced in nature and
are limitless.
Ex:Wind energy,Solar energy,tidal energy etc
What is energy?
The energy is generated by the movement of electrons from one point
to another.
The kilowatt-hour (kWh), also known as the Board of Trade unit, is the
commercial unit of electrical energy (B.O.T). Generally, one kWh is
called one unit.
HYDEL POWER PLANT or HYDRO ELECTRIC POWER PLANT
HYDEL POWER PLANT or HYDRO ELECTRIC POWER PLANT
HYDEL POWER PLANT or HYDRO ELECTRIC POWER PLANT
HYDEL POWER PLANT or HYDRO ELECTRIC POWER PLANT
Dam and Reservoir: The dam is constructed on a large river in hilly areas
to ensure sufficient water storage at height. The dam forms a large reservoir
behind it. The height of water level (called as water head) in the reservoir
determines how much of potential energy is stored in it.
Control Gate: Water from the reservoir is allowed to flow through the
penstock to the turbine. The amount of water which is to be released in the
penstock can be controlled by a control gate. When the control gate is fully
opened, maximum amount of water is released through the penstock.
Penstock: A penstock is a huge steel pipe which carries water from the
reservoir to the turbine. Potential energy of the water is converted into
kinetic energy as it flows down through the penstock due to gravity.
Water Turbine: Water from the penstock is taken into the water turbine.
The turbine is mechanically coupled to an electric generator. Kinetic energy
of the water drives the turbine and consequently the generator gets driven.
There are two main types of water turbine; (i) Impulse turbine and (ii)
Reaction turbine. Impulse turbines are used for large heads and reaction
turbines are used for low and medium heads.
HYDEL POWER PLANT or HYDRO ELECTRIC POWER PLANT
Generator: A generator is mounted in the power house and it is
mechanically coupled to the turbine shaft. When the turbine blades are
rotated, it drives the generator and electricity is generated which is then
stepped up with the help of a transformer for the transmission purpose.
Surge Tank:
Surge tanks are usually provided in high or medium head power plants
when considerably long penstock is required. A surge tank is a small
reservoir or tank which is open at the top. It is fitted between the reservoir
and the power house.