Blogs >> Technology >>
electrical energy generation
ELECTRICAL POWER GENERATION:
THE MOST NEEDED GENERATION
THE MOST NEEDED GENERATION
FIRST OF ALL WE HAVE TO UNDERSTAND THE GENERATION ,WHILE WE SAY IT GENERATION OF POWER BUT IT'S NOT SO.IT 'll RATHER GOOD IF WE SAY IT CONVERSION OF POWER.THE
REASON BEHIND THIS IS THE CONSERVATION lAW OF ENERGY WHICH STATES,
ENERGY NIETHER BE CREATED NOR DESTROYED,IT CAN ONLY BE CHANGED TO
ANOTHER FORM, AND THE ENTIRE POWER REMAINS EQUAL,AND AS WE KNOW THIS IS FOLLOWED BY THE GENERATION TOO.SO GENERATION OF THE POWER IS NOTHING, BUT THE CONVERSION OF ONE FORM OF ENERGY TO THE OTHER FORM.IN THE REFERENCE OF ELECTRICAL POWER IT IS THE CONVERSION OF OTHER POWERS (LIKE MECHANICAL,WIND,NUCLEAR etc.)TO ELECTRICAL POWER.
REASON BEHIND THIS IS THE CONSERVATION lAW OF ENERGY WHICH STATES,
ENERGY NIETHER BE CREATED NOR DESTROYED,IT CAN ONLY BE CHANGED TO
ANOTHER FORM, AND THE ENTIRE POWER REMAINS EQUAL,AND AS WE KNOW THIS IS FOLLOWED BY THE GENERATION TOO.SO GENERATION OF THE POWER IS NOTHING, BUT THE CONVERSION OF ONE FORM OF ENERGY TO THE OTHER FORM.IN THE REFERENCE OF ELECTRICAL POWER IT IS THE CONVERSION OF OTHER POWERS (LIKE MECHANICAL,WIND,NUCLEAR etc.)TO ELECTRICAL POWER.
NOW WE MOVE TO THE DIFFERENT METHODS,USED TO GET ELECTRICAL POWER
A power generation plant is
used to generate electrical power, it's a facility designed to produce
electrical energy from another form of energy, such as:
Heat
(thermal) energy generated from:fossil fuels, coal ,petroleum ,natural
gas ,solar thermal energy ,geo thermal energy ,nuclear energy.
Potential energy from falling water in a hydroelectric facility
Wind energy from wind.
Solar electric from solar (photovoltaic) cells
Chemical energy from:
fuel cells
There
are many different types of electric power generating plants. The major
types of electric power plants, existing today are shown below:
used to generate electrical power, it's a facility designed to produce
electrical energy from another form of energy, such as:
Heat
(thermal) energy generated from:fossil fuels, coal ,petroleum ,natural
gas ,solar thermal energy ,geo thermal energy ,nuclear energy.
Potential energy from falling water in a hydroelectric facility
Wind energy from wind.
Solar electric from solar (photovoltaic) cells
Chemical energy from:
fuel cells
There
are many different types of electric power generating plants. The major
types of electric power plants, existing today are shown below:
Figure 1. Fossil fuel power plant
figure.2: hydroelectric power plant
figure.3: Solar thermal power plant
Figure 4: Nuclear power plant
figure 5: Geothermal power plant Figure
figure 6: wind power towers
now
a great part of our work has been or we can say first step ends here,if
we have generated power using any one of the above methods.now we move to second one known as:
a great part of our work has been or we can say first step ends here,if
we have generated power using any one of the above methods.now we move to second one known as:
Substations:
A substation is
a high-voltage electric system facility. It is used to switch
generators, equipment, and circuits or lines in and out of a system. It
also is used to change AC voltages from one level to another, and/or
change alternating current to direct current or direct current to
alternating current. so they are to get desired modifications in the
generated power .
a high-voltage electric system facility. It is used to switch
generators, equipment, and circuits or lines in and out of a system. It
also is used to change AC voltages from one level to another, and/or
change alternating current to direct current or direct current to
alternating current. so they are to get desired modifications in the
generated power .
Substation Types: Although, there are generally four types of substations.there are some other which are a combination of two or more types.
Step-up Transmission Substation
Step-down Transmission Substation
Distribution Substation
Underground Distribution Substation
after this process we move further for the next one step :Step-up Transmission Substation
Step-down Transmission Substation
Distribution Substation
Underground Distribution Substation
which is to transmit the power through lines, called transmission lines.
Transmission
lines carry electric energy from one point to another in an electric
power system. They can carry alternating current or direct current or a
system can be a combination of both. Also, electric current can be
carried by either overhead or underground lines. The main
characteristics that distinguish transmission lines from distribution
lines are that they are operated at relatively high voltages, they
transmit large quantities of power and they transmit the power over
large distances.
lines carry electric energy from one point to another in an electric
power system. They can carry alternating current or direct current or a
system can be a combination of both. Also, electric current can be
carried by either overhead or underground lines. The main
characteristics that distinguish transmission lines from distribution
lines are that they are operated at relatively high voltages, they
transmit large quantities of power and they transmit the power over
large distances.
these are commonly used everywhere.
Subtransmission Lines :carry
voltages reduced from the major transmission line system. Typically,
34.5 kv to 69 kv, this power is sent to regional distribution
substations.
voltages reduced from the major transmission line system. Typically,
34.5 kv to 69 kv, this power is sent to regional distribution
substations.
Underground Transmission Lines :are more common in populated areas. They may be buried with no protection, or placed in conduit, trenches, or tunnels.
so these were some methods to transmit power.
now this power is distributed according to the need of specific consumers:
Distribution Systems
Industrial Customer :Most
industries need 2,400 to 4,160 volts to run heavy machinery and usually
their own substation or substations are to reduce the voltage from the
transmission line to the desired level for distribution throughout the
plant area. They usually require 3-phase lines to power 3-phase motors.
Industrial Customer :Most
industries need 2,400 to 4,160 volts to run heavy machinery and usually
their own substation or substations are to reduce the voltage from the
transmission line to the desired level for distribution throughout the
plant area. They usually require 3-phase lines to power 3-phase motors.
Commercial customers: are
usually served at distribution voltages, ranging from 14.4 kV to 7.2 kV
through a service drop line which leads from a transformer on or near
the distribution pole to the customer's end use structure. They may
require 3-phase lines to power 3-phase motors.
usually served at distribution voltages, ranging from 14.4 kV to 7.2 kV
through a service drop line which leads from a transformer on or near
the distribution pole to the customer's end use structure. They may
require 3-phase lines to power 3-phase motors.
Residential Customer:
The
distribution electricity is reduced to the end use voltage (120/240
volts single phase) via a pole mounted or pad-mounted transformer.
Power is delivered to the residential customer through a service drop
line which leads from the distribution pole transformer to the
customer's structure, for overhead lines, or underground.
transportation systems: Currently
the only electric transportation systems are light rail and subway
systems. A small distribution substation reduces the local distribution
voltage to the transportation system requirements. The overhead lines
supply electric power to the transportation system motors and the
return current lines are connected to the train tracks. are light rail
and subway systems. A small distribution substation reduces the local
distribution voltage to the transportation system requirements. The
overhead lines supply electric power to the transportation system
motors and the return current lines are connected to the train tracks.
the only electric transportation systems are light rail and subway
systems. A small distribution substation reduces the local distribution
voltage to the transportation system requirements. The overhead lines
supply electric power to the transportation system motors and the
return current lines are connected to the train tracks. are light rail
and subway systems. A small distribution substation reduces the local
distribution voltage to the transportation system requirements. The
overhead lines supply electric power to the transportation system
motors and the return current lines are connected to the train tracks.
so now all costumers like me are fed with power and they are doing there and i am posting this blog.
for any queries or other info. mail me at
the all info. is collected from
osha & me.
:charan the technologist
|
|
