Busbars And Their Uses

Used in electrical power distribution, busbars are usually made out of aluminium or copper and they are able to conduct electricity to transmit power from the source of electric power to the load. They are usually supported by insulators and conduct electricity within switchboards, substations or other electric apparatus. Some typical applications of these devices can be to form...

DC motor types

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Advantages & disadvantages of energy saving bulbs

Energy saver light bulbs are highly energy efficient. You can find a wide range of energy efficient products in the market. However during the time when they were introduced in the market they were available in big sizes and did not have unique designs. Moreover they were costly and took a considerable time to reach full brightness. With the advanced technology the energy light bulbs available...

DIFFERENTIAL PROTECTION

Differential protection is a very reliable method of protecting generators, transformers, buses, and transmission lines from the effects of internal faults. Figure: Differential Protection of a Generator In a differential protection scheme in the above figure, currents on both sides...

Hybrid cars

Hybrid cars are considered as major breakthrough in the vehicle technology progress. For long, vehicles that use gasoline or some other fossil fuels have been running on the road. People have been familiar with such kind of vehicle, but more of them are aware with such fossil fuel engine performance...

Voltage sags

Voltage sags -- or dips typically lasting from a cycle to a second or so, or tens of milliseconds to hundreds of milliseconds. Voltage swells are brief increases in voltage over the same time range. (Longer periods of low or high voltage are referred to as "undervoltage" or "overvoltage".)...

Power system protection

Types of protection   Generator sets – In a power plant, the protective relays are intended to prevent damage to alternators or to the transformers in case of abnormal conditions of operation, due to internal failures, as well as insulating failures or regulation malfunctions. Such failures are unusual, so the protective relays have to operate very rarely. If a protective relay...