The main function of a power system is to supply electrical energy to its customers with an acceptable degree of reliability and quality. Among many other things, the reliability of a power system depends on trouble free transformer operation. Now, in the electricity utilities around the world, a significant number of power transformers are operating beyond their design life. Most of these transformers are operating without evidence of distress. In Power Link Queensland (PLQ), 25% of the power transformers were more than 25 years old in 1991. So priority attention should be directed to research into improved diagnostic techniques for determining the condition of the insulation in aged transformers.
Friday, 20 July 2012
Electrical And Chemical Diagnostics Of Transformer Insulation Presentation
The main function of a power system is to supply electrical energy to its customers with an acceptable degree of reliability and quality. Among many other things, the reliability of a power system depends on trouble free transformer operation. Now, in the electricity utilities around the world, a significant number of power transformers are operating beyond their design life. Most of these transformers are operating without evidence of distress. In Power Link Queensland (PLQ), 25% of the power transformers were more than 25 years old in 1991. So priority attention should be directed to research into improved diagnostic techniques for determining the condition of the insulation in aged transformers.
Four Quadrant Control Of Switched Reluctance Motors PDF
The SRM is a doubly-salient, singly-excited machine with
independent windings of the stator. Its stator structure is same as PM
motor, but the rotor is simpler having no permanent magnet on it. Stator
windings on diametrically opposite poles are connected in series or
parallel to form one phase of the motor.
Power Scenario Of India PDF
The Indian economy uses a variety of energy sources, both commercial and
non-commercial. Fuel wood, animal waste and agricultural residue are
the traditional or `non-commercial' sources of energy that continue to
meet the bulk of the rural energy requirements even today. However, the
share of these fuels in the primary energy supply has declined from over
70% in the early 50's to a little over 30% as of today.The traditional
fuels are gradually getting replaced by the "commercial fuels" such as
coal, lignite, petroleum products, natural gas and electricity.
Propulsion Systems For Ships PPT
The WEC wave energy conversion is a
new, highly efficient technology that harnesses the immense, renewable
energy contained in ocean waves. Its unique ability to extract and
convert energy from both the rising and falling of waves, represents a technological breakthrough.
Propulsion Systems For Ships PDF
The WEC wave energy conversion is a
new, highly efficient technology that harnesses the immense, renewable
energy contained in ocean waves. Its unique ability to extract and
convert energy from both the rising and falling of waves, represents a technological breakthrough.
Poll: protection and fault announciation system for domestic loads-electrical project
PROTECTION AND FAULT ANNOUNCIATION SYSTEM FOR DOMESTIC LOAD.pdfPROTECTION AND FAULT ANNOUNCIATION SYSTEM FOR DOMESTIC LOAD.pdf hey this is my project of b.e. last sem
For Downloads-Click Here
For Downloads-Click Here
Generating electrical power ppt download
This project is used for generating electrical power by simply running the train on the railway track. This project uses simple drive mechanism such as rack and pinion assembly and chain drive mechanism.
Generating electrical power pdf download
This project is used for generating electrical power by simply running the train on the railway track. This project uses simple drive mechanism such as rack and pinion assembly and chain drive mechanism.
Wednesday, 18 July 2012
Regulated power supply pdf download
The output of filter is not constant output voltage it will varies
according to changes in input but we want constant output voltage. For
this purpose we are using voltage regulator.
Regulator is defined as it is a device which will maintain constant output irrespective of changes in input.
The most popular regulator series is 78xx series. This series have more advantages.
Regulator is defined as it is a device which will maintain constant output irrespective of changes in input.
The most popular regulator series is 78xx series. This series have more advantages.
Energy saving pdf download
Electricity is a matter of application and as our country
is in electricity crises, a significant amount of energy can be saved by
using more energy efficient appliances.
Nowadays, there are many energy efficient appliances like lights, fans, Refrigerator and ACs that are available in the market so that one can replace the old appliances by new ones and save electricity.
Nowadays, there are many energy efficient appliances like lights, fans, Refrigerator and ACs that are available in the market so that one can replace the old appliances by new ones and save electricity.
Tuesday, 17 July 2012
Project on smart sensors
The advent of integrated circuits, which became possible because of the tremendous progress in
semiconductor technology, resulted in the low cost microprocessor. Thus if it is possible to design a low
cost sensor which is silicon based then the overall cost of the control system can be reduced .We can have
integrated sensors which has electronics and the transduction element together on one silicon chip.
semiconductor technology, resulted in the low cost microprocessor. Thus if it is possible to design a low
cost sensor which is silicon based then the overall cost of the control system can be reduced .We can have
integrated sensors which has electronics and the transduction element together on one silicon chip.
Paper Presentation: Z-source inverter for adjustable speed drives (a novel ASD system)
Basically, the motor drive system comprises a voltage source
inverter-fed induction motor (VSIM): namely a three-phase voltage source
inverter and the induction motor. The squirrel-cage induction motor
voltage equations are based on an orthogonal d-q reference-rotating
frame where the coordinates rotate with the controlled source frequency.
The paper presents a novel fuzzy logic controller for high performance
induction motor drive system. The inputs to the fuzzy logic controller
are the linguistic variables of speed error and change of speed error,
while the output is change in switching control frequency of the voltage
source inverter. In this paper a comparison between fuzzy logic
controller and traditional PI controllers are presented. The results
validate the robustness and effectiveness of the proposed fuzzy logic
controller for high performance of induction motor drive. Simulink
software that comes along with MATLAB was used to simulate the proposed
model.
Paper:A HIGH PERFORMANCE INDUCTION MOTOR DRIVE SYSTEM USING FUZZY LOGIC CONTROLLER
Basically, the motor drive system comprises a voltage source inverter-fed induction motor (VSIM): namely a three-phase voltage source inverter and the induction motor. The squirrel-cage induction motor voltage equations are based on an orthogonal d-q reference-rotating frame where the coordinates rotate with the controlled source frequency. The paper presents a novel fuzzy logic controller for high performance induction motor drive system. The inputs to the fuzzy logic controller are the linguistic variables of speed error and change of speed error, while the output is change in switching control frequency of the voltage source inverter. In this paper a comparison between fuzzy logic controller and traditional PI controllers are presented. The results validate the robustness and effectiveness of the proposed fuzzy logic controller for high performance of induction motor drive. Simulink software that comes along with MATLAB was used to simulate the proposed model.
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