Abstract :
Abstract – Merely generating more power is not enough to
meet present day requirements. Power consumption and
losses have to be closely monitored so that the generated
power is utilized in an efficient manner. This illegal
electricity usage may indirectly affect the economic status of
a country. Also the planning of national energy may be
difficult in case of occurrence of T& D Losses. The T&D
Losses have been quite high in India. The reasons cited for
such high losses are; lack of adequate T & D capacity, too
many transformation stages, improper load distribution and
extensive rural electrification etc. In addition defective
metering, un-metered supply, and pilferage have resulted in
high Non-Technical Losses (NTL). The purpose of this paper
is to investigate NTL in power systems. These are losses in
power systems that cannot be predicted or calculated ahead.
Non-technical losses can also be viewed as undetected load of
customers that the utilities don’t know. When an undetected
load is attached to the system, the actual losses increase while
the losses expected by the utilities will remain the same. In
this paper, Residential & Industrial loads (operated at 11KV
known as primary distribution system) are considered at
node1 and node2 respectively in 3-bus system & NTL load is
added to the industrial load and power system losses are
measured.
