UK if a turbine has a single one-phase

UK National Grid
Distribution System

Task
8

We Will Write a Custom Essay Specifically
For You For Only $13.90/page!


order now

a.      
Summarise the reasons for a three-phase supply
network

A three-phase network
is a currently used network to exchange current electric power into generation,
transmission and distribution. Worldwide Power Grids utilize the current system
to exchange power. The fundamental reasons the three-stage network was set up
is because of the way that it has a more extended life expectancy than that of
a one-stage network. A three-stage system will create 3x the energy of that of
a single stage network. Additionally, with the three-stage you get 3 wires
rather than the standard 2 wires. Another reason three-stage systems are used
is the reality that they can withstand more pressure and force. For instance, if
a turbine has a single one-phase generator its likelihood being shaken to the
point of detachment because of the vibrations and torque assortments is very
high. Be that as it may, a single three-phase generator could deal with this
with no pressure or issues. Consistent power is one of the three-phase
system’s key highlights. The power is always conveyed all while the measure of
conductor material is not as much as a one-phase arrange. On the off chance
that a test was led for both a one-phase and three-phase network, the two
systems running a similar measure of energy and voltage. The outcomes would
demonstrate the three-phase would be the best of the two. Over the long haul
the three-phase network is the best alternative.

 

b.      
Use diagrams to show the voltages at all
significant parts of the system, from generation through to end user, and
briefly explain the reason for the voltages used

Customers get power through
power stations. Wires and cables inside the National Grid are used
to transfer electricity from power stations. Energy is lost as heat when high
voltage is exchanged through wires and cables.
The National Grid attempts to/must keep a low current to restrain from losing more heat. The more heat
is lost, the higher the current gets. A high voltage can transfer such a low current through cables
and wires and to ensure no
more energy is lost. For instance, “Power stations create power at
25,000V. Power is sent through the National Grid cables at 400,000V, 275,000V
and 132,000V.” (Bbc.co.uk, 2018) Power stations use step up transformers
as they can make the high voltages that are crucial to transfer power through
electrical cables. Another transformer is used to drastically diminish the voltage before it
enters a household. This is done
through a step-down transformer, which is the last procedure before a safe voltage
of 230V is sent into every house. 

BBC – GCSE BITESIZE: THE
NATIONAL GRID In-content: (Bbc.co.uk, 2018) Your Bibliography:
Bbc.co.uk. (2018). BBC – GCSE Bitesize: The National Grid. online Available
at: http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/vitality/using_electricityrev1.shtml
Accessed 19 Jan. 2018. It would be ideal if you empower blaze to have
the best involvement Check for language