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Electrical Poer System and Protection
http://electrical-power-system.blogspot.com
electrical engineering,power system protection and how generator works
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Electrical Insulators
MaterialHigh-voltage insulators used for high-voltage power transmission are made from glass, porcelain, or composite polymer materials. Porcelain insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to s...
cooling of generator or motor
Cooling of Rotating Machines :Forced Air Cooling : For large machines which may require many tonnes of cooling air/hr. , forced ventilation permits the cleaning of the air by suitable filters , avoiding clogging of the ducts. The air is filtered or w...
Rotor of generator
The rotor shaft is forged from a vacuum cast steel ingot. The high mechanical stresses resulting from the centrifugal forces & short circuit torque call for high quality heat-treated steel. Comprehensive tests are done to ensure adherence to the spec...
armature windings of generator
There are two types of armature windings most commonly used for a three phase generator.i)Single layer winding.ii) Double layer winding.Conductors Construction :Each bar consists of a large number of separately insulated strands to reduce the skin ef...
construction of generator
An alternating current generator consists principally of a magnetic circuit, DC field winding and mechanical structure, including cooling & lubricating system.Broadly the alternator parts can be classified asi) Stationary part - comprising the stator...

