Category: Power Systems
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4 Common Arrangements of Distribution Substations
The general technique of supplying large quantity of power to factories or other complexes is by means of high-voltage (HV) supply, typically at 11 kV, occasionally at 6.6 kV. The installation consists of a main substation at the point of … Read more
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AC Transmission and Distribution Systems
Electrical energy is generated, transmitted and distributed in the form of AC. Since, alternating voltage can be changed in magnitude by means of a transformer; it is possible to transmit AC power at high voltage which reduces the current … Read more
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Miniature Circuit Breakers (MCBs)
Miniature circuit breakers (MCBs) are electromechanical devices that protect an electrical circuit from over currents, in other words, MCBs are switches that automatically turns OFF when the current flowing them exceeds the maximum allowable limit. Over currents in an electrical … Read more
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Overhead vs. Underground Power Distribution Systems
A power distribution system is the electrical system between the sub-station fed by the transmission system and the consumer’s meters. Image source: Pexels A distribution system generally is made up of feeders, distributors and the service mains. In this case, … Read more
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Advantages of Fluid Power over Electric Power Systems
Generally fluid power systems tend to be insufficient, requiring much more energy input to the fluid than what is extracted at the points of use. When large amounts of energy need to be transmitted over long distances, electricity is a … Read more
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The Importance of Power Line Communication in Smart Grid Operation
Power line communication (PLC) (i.e. the sending of data over the existing power cables) plays an important role in smart grid operation; Power line communication networks can access smart meters that are connected to feeders, the smart meter receives a … Read more
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Transformer Substations in an Electric Power Supply System
The greater part of the substations in the power systems are focused on changing of the voltage level of the electric supply. These are termed to as transformer substations since the transformer is the key component used to change the … Read more
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Features and Classification of Substations
A substation can be defined as an assembly of apparatus used to change some characteristics like voltage, AC, DC, frequency, power factor, etc., of electric supply. Substations play a key role in power systems. The continuity of supply depends largely … Read more
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How to calculate the Power Factor Correction
Let us consider an inductive load taking a lagging current I at a power factor cosΦ1. For us to improve the power factor of such a circuit, the solution is to connect equipment in parallel with the … Read more