Booster Transformer: Sometimes it is desired to control the voltage of a transmission line at a point far away from the main transformer...
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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 ...
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Tap changing transformers
Tap changing transformers : The excitation control method is satisfactory only for relatively short lines. However, it is not suitable f...
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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...
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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...
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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...
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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...
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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. ...
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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...
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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...
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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...
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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...
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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...
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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...
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What is Ideal Transformer ?
What is Ideal Transformer ? An ideal transformer is a imaginary transformer which has the following properties : Ideal Transfor...
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