Booster Transformer: Sometimes it is desired to control the voltage of a transmission line at a point far away from the main transformer...
Read More
Auto-transformer tap-changing
Auto-transformer tap-changing : Auto-transformer tap-changing. Here, a mid-tapped auto-transformer or reactor is used. One of the lines ...
Read More
Tap changing transformers
Tap changing transformers : The excitation control method is satisfactory only for relatively short lines. However, it is not suitable f...
Read More
What is voltage control in power system ?
What is voltage control in power system? I n a modern power system, electrical energy from the generating station is delivered to...
Read More
What are the protection systems of transformers ?
What are the protection systems of transformers ? Protection of transformers For protection of generators, Merz-Price circulating c...
Read More
What is the comparison between D.C. and A.C. transmission line ?
What is the comparison between D.C. and A.C. transmission line ? The electric power can be transmitted either by means of d.c. or a.c. E...
Read More
What are the types of underground cable faults ?
What are the types of Underground Cable Faults ? C ables are generally laid directly in the ground or in ducts in the underground distr...
Read More
What is skin effect ?
What is skin effect ? T he tendency of alternating current to concentrate near the surface of a conductor is known as skin effect. ...
Read More
How to improve power factor ? and which type of equipment are required for improving power factor ?
How to improve power factor ? & Which type of equipment are required for improving the power factor ? The...
Read More
What is Power Triangle ? or active power, reactive power and apparent power
What is power triangle ? Active power, Reactive power and Apparent power ? The analysis of power factor can also be made in terms of po...
Read More
What is power factor ?
What is power factor ? The cosine of angle between voltage and current in an a.c. circuit is known as power factor. In an a.c. circuit...
Read More
Methods of reducing corona effect
Methods of reducing corona effect It has been seen that intense corona effect are observed at a working voltage of 33kV or above. There...
Read More
Factors affecting corona and advantages and disadvantages of corona
Factors affecting corona :- T he phenomenon of corona is affected by the physical state of the atmosphere as well as by the conditions o...
Read More
What is corona effect and how it's occurred ?
What is corona and how it's occurred ? The phenomenon of violet glow, hissing sound and production of ozone in an overhead transmiss...
Read More
What is Ideal Transformer ?
What is Ideal Transformer ? An ideal transformer is a imaginary transformer which has the following properties : Ideal Transfor...
Read More
Subscribe to:
Posts (Atom)