The percentage of loss of power during transmission
and distribution is approximated as 26%.
Tesla has proposed method of transmission of
electricity using electro magnetic induction
What is witricity?
Transmission of energy to air
Process of transferring electrical energy or power over
distance without using wires also known as witricity or
wireless power transmission
batteries for transmission of power
Sir NICHOLAI TESLA was the first one to propose and
research the idea of wireless transmission in 1899
Tesla enlighten 200 lamps at he distance of 40km but only 15%
efficiency was achieved.
Types of wireless energy transfer
Short range– Inductive coupling
Mid range– Resonance Inductive coupling
Long range- Electromagnetic Wave Power
Witricity works on the principle of mutual induction between the
There are two copper coils arranged one at the sender end and
other at the receiver end .The first coil is attached to the power
source while the second coil to the light bulb.
When the power is switched on the
first coil converts the electricity
into magnetic field ,which is oscillating
at a particular frequency i.e, AC source.
The second coil at the receiver end
converts the magnetic field into electricity .
The surrounding environment is unaffected.
HOW DOES RESONANT INDUCTION WORKS
Same principles as magnetic induction, but uses
resonance to increase the range.
Everything resonates at a certain frequency, based on
its shape and material.
Energy transfers easily between resonating objects.
With resonant induction, power is transmitted
between two resonating coils.
7/28/2016 WiTricity 10
Safe, fairly efficient, good ranges
More secure, no risk of getting shocked
Maintenance cost will be saved
Non-radioactive energy transfer is safe for people
Wastage of power is less.
No need of power cables, batteries, e-waste and line
Wireless power transmission can be possible only in
Need for standardization and adaption.so a little
overheating occurs because of different voltages
Refitting old equipment's or purchasing new
equipment's could become a very expensive
Possibility of “energy theft”. Wi Fi, someone can be
using your internet or your power.
think that city will be covered
with WPT hot spots , just like
Wireless Internet, there will be
no need of charging batteries or
carrying adapters all around
Wireless power transfer is
quickly becoming a viable reality.