POWER SYSTEM LOSS MINIMISATION. GUIDED BY PROF.B.K.RANA Presented By:- Arun Kumar Samal 7 th Semester Electrical Engineering Roll-No:0401101174. INTRODUCTION. Importance Of Electricity Facts about Electricity Electricity Losses Problems In Loss Reduction Useful Solutions
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
GUIDED BY PROF.B.K.RANA
Arun Kumar Samal
Transformer and Transmission line losses due to poor maintainance.
Losses due to overloading and low voltage.
Losses due to poor standard of equipments.
Low power factor at off-peak hours.
Improper Earthing at consumer end.
Long transmission lines.ELECTRICITY LOSSES
:- conductor size
:- spacing between conductors
:- line voltage
:-Increasing size of the conductor i.e by increasing the size of the conductor the voltage at which corona occurs is raised and hence corona effects are considerably reduced.This is one of the reasons why ACSR conductors are used.
:-By increasing conductor spacing i.e by increasing the spacing between the conductors the voltage at which corona occurs is raised and hence corona effects are eliminated.
:-Copper loss is the term reffered to the energy which is dissipated by the resistance in the wire used to wind a coil in an electrical devices such as transformer,motors,generators and in transmission lines.copper losses occur due to the flow of currents in the conductors.Copper loss increases both due to the increase in current and the resistance of the conductor.
:- Copper loss can be minimised by using conductors of large diametresinorder to reduce the resistance per unit length of the condutors.
:- The conductivity of a transmission line can be enhanced by using multiple insulated conductors.Hollow conductors can also help reduce he cost of transmission.
:- type of material
:- diameter of the conductor
:- shape of the conductor
:- Maximisation of generation during peak load hours and
load curtailment equal to the deficit of generation.
:- Backing down of generation to match the
system load reduction during off-peak hours,
keeping the merit order of dispatch in view.
bad in India (voltage deviations are more than
25% and frequency deviations >5%).
in incremental losses and require additional
increases the loss and distorts the power factor.
dynamic characteristics of the load. The component of the complex
waveform can be described as superposition of waveforms, called
harmonics, having frequencies from 0 to infinity.
non-linear loads, the percentage of harmonic currents can be very
converters, fluorescent lighting with electronic ballasting,
computers are the major sources of harmonics current.
overloading transformers, capacitors and other components on the distribution system.
transformers and power factor correction capacitors used in
the distribution system.
currents of high frequencies.
will add more losses to the electrical system and could create
line ringing and large voltage transients.
:- Phase cancellation or harmonic control in power
converters by line reactors or isolation transformers.
:- Developing procedures and methods to control,
reduce of eliminate harmonics in power system
:- Use of filters(passive & active filters)
:- Circuit detuning which involves reconfiguration of
feeders or relocation of capacitor banks to overcome
:- Shifting of energy use to off-peak hours
:- Energy conservation
:- Efficient choice and utilization of electric
:- Standards, quality and performance
evaluation of domestic electric equipments
:- Energy audit
Customer Relationship Management
:- focus on specific operating practices,
:- compare measures and results
:- identify improved processes
within their organizations
:- Promoting competition
:- Performance evaluation
:- Coordinated tariff
:- Improving power quality and productivity
:- Maximizing efficiency
a regular basis to upgrade their knowledge
pressing need for training of employees at
all level and in all fields of the electric
applications in power sector
:- Overview of the electric system operations
including engineering criticality and quality.
:- Awareness of Reforms program- APDRP
:- Simulation tools
:- Energy audit
:- Energy management system
:- Management information system
:- Finance and Accounts
:- Full metering, energy audit and MIS, control
:- Increase in transformation capacity.
:- Increase in HT/LT ratio. Systems analysis and
:- Reduction of technical losses
and distribution level.