Electricity Generation and Environmental Impact

Running head: ELECTRICAL ENGINEERING
ELECTRICAL ENGINEERING
Name of the Student
Name of the University
Author Note

1ELECTRICAL ENGINEERING
Task 1:
The electricity is generated at the generating stations by high rated generators typically of the
range of megawatts. The energy is generated by either using renewable resources like wind,
water, solar or nuclear and/or non-renewable resources like coal, natural gas etc. The
generated power is transmitted through step up transformers for pushing the power in the
long distances. The electrical current is transmitted from the transformers to the substations
via high voltage transmission lines. The substations have step down transformers which
lowers the voltages so that it can be sent to small power requirement lines. Then the power
goes to the pillar boxes in the locality via distribution lines where step down transformer is
installed which further steps down the voltage into the level of home usage (Grigsby 2018).
The pillar boxes are often identified as big green boxes mounted on the poles or may be
sitting on the ground. These particular transformers are known as the pad mount
transformers. Then the power goes to the meter boxes installed in the houses where a large
Fuse is installing for breaking the circuit in case of over-current conditions. From the meter
box the power goes to individual switch-boards or service panels and there also fuses are
installed for protecting devices from high current. Finally, the switches those are installed in
the switchboard supplies power to the devices (like fan, tubes) when turned on.

2ELECTRICAL ENGINEERING
Figure: Generation of electricity, distribution and transmission
Now, power is lost in transmission from national grid to houses because of the heating effect.
To reduce this heating effect the generated power is raised to very high voltage before
transmission. In this way as power remains constant the current is significantly reduced and
thus very low loss of power through heating effect which is mathematically known as I 2 R
loss. This method of loss reduction is very effective in power stations and mostly followed by
power distribution companies.
Task 2:
Name of the human activity Impact on the environment
Deforestation Deforestation has several impacts on the
environment that includes loss of habitats
for the plants, insects and animals,
increment of greenhouse gases in the
environment, soil erosion and flooding due
to less water content in the air, homeland