Wires are of two groups- (i) ordinary wires and (ii) cables. For electric work conductors are usually made of copper but aluminium conductors are also used mainly because of its low cost. In India a large quantity of copper is imported from other countries. Presently the armature and field coils of different machines and instruments are also made of aluminium [...]
Electric utility companies usually measure energy consumption in two quantities- the total cumulative energy consumed and the maximum power used for a given period. Thus, there are two charges in any given billing period especially for larger industrial customers: energy charges and demand charges. Residential customers are typically charged for the energy consumption only. The energy charge represents the costs [...]
The emphasis of this article is on the power aspects of Distributed Generation, and only a cursory description of the relevant issue with the technologies is given. Also, the Internet contains a multitude of resources on Distributed Generation. A word of caution- As with all things on the Internet, it is good to maintain a healthy scepticism of any material [...]
Deploying generation along utility distribution systems naturally creates some conflicts because the design of the system assumes only one source of power. A certain amount of generation can be accommodated without making any changes. At some point, the conflicts will be too great and changes must be made. In this article, several of the operating conflicts that can result in [...]
The service transformer used for interconnection can have a great influence on the impact that Distributed Generation will have on the power quality. The advantages and disadvantages of the common three-phase transformer connections are: 1. Grounded Wye-Wye Connection: It is favored because of its reduced susceptibility to ferroresonance on cable-fed loads and fewer operating restrictions when being switched for maintenance. [...]
The main power quality issues affected by Distributed Generation are: 1. Voltage Regulation 2. Sustained Interruptions 3. Harmonics 4. Voltage Sags. Issue # 1. Voltage Regulation: This is often the most limiting factor for how much Distributed Generation can be accommodated on a distribution feeder without making changes. It may initially seem that Distributed Generation should be able to improve [...]
Here is an experiment on ‘Power Factor’ especially written for school and college students. Aim of the Experiment: Power factors improvement of single-phase load using capacitor bank. Objective: To observe that by using capacitor bank with single phase load, power factor is improved. Theory: Power factor is the ratio between the kW and the KVA drawn by the actual load [...]
Here is a compilation of essays on ‘MHD Power Generation’ for class 8, 9, 10, 11 and 12. Find paragraphs, long and short essays on ‘MHD Power Generation’ especially written for school and college students. Essay on MHD Power Generation Essay Contents: Essay on the Introduction to MHD Power Generation Essay on the Arrangement of MHD Power Generator Essay on [...]
The main components of hydro power plant could be listed as: 1. Forebay and Intake Structures 2. Head Race or Intake Conduits 3. Surge Tank 4. Turbines and Generators 5. Power House 6. Tail Race and Draft Tube. Component # 1. Forebay and Intake Structures: As the name suggests forebay is an enlarged body of water in front of intake. [...]
Here is an essay on the ‘Installation of Power Cables’ for class 8, 9, 10, 11 and 12. Find paragraphs, long and short essays on the ‘Installation of Power Cables’ especially written for school and college students. Essay on the Installation of Power Cables Essay Contents: Essay on the Installing of Power Cables Essay on Energy Costs in Power Cables [...]