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Why AC systems are preferred over DC systems?

Why AC systems are preferred over DC systems?

Key Systems Engineering Electrical Engineering
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Date de publication: 2017/02/12
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Atizaz Elahi
par Atizaz Elahi , Electrical Design, Production & Procurement Engineer , HYDROMECH COMPANY

Alternating Current systems are preferred ,it is easy to control AC , they can be stepped up or down using Transformers, while in DC we don't have such option. AC system have less maintenance cost, easy to handle and reliable. DC systems are complex they include invertors.

Abdolreza Radfarid
par Abdolreza Radfarid , Electricians Building - electrical repairer - installer of equipment , SET Ertebat .Co - Rail ways of Iran

First, there are less losses, secondly, we face the difficulty of energy transfer, so a lot of money is imposed for transfer

jude suraj nishan mendis
par jude suraj nishan mendis , Executive pastry chef , Anantara peace haven tangalle resort

Transmitting electricity over AC links is more efficient, compared to DC transmission, up to a certain distance then DC transmission would be more efficient (hence, HVDC technologies are emerging!)

Jewelry Joy Gayda
par Jewelry Joy Gayda , Engineer III , Department of the Interior and Local Government

It is cost efficient. AC plant cost way less than equivalent output on DC.

Lester Alsup
par Lester Alsup , Electrical Superintendent , Paula Patrick Electrical Company - Marine Corp Logistics Base

AC is a better voltage and has better transmission

Girikotresh Ks

Ac systems are more flexible and easy to control

MUHAMMAD WASEEM NAWAZ
par MUHAMMAD WASEEM NAWAZ , Lab Assestent , Nashat

AC Preferrd Due to Transmishion less cost

MOHAMMED AAMER SIDDIQ

AC transmission is preferred over DC transmission because the power loss is much less as compared to loss in DC.

Osama Waheed
par Osama Waheed , Electrical supervisor , International Builders

In direct current DC, the electric charge (current) only flows in one direction. And in alternating current ac current changes direction periodically

Mukul Tyagi
par Mukul Tyagi , Field Service Engineer , World Wide Power Services

It is easy to maintain and change the voltage of AC electricity for transmission and distribution. Plant cost for AC transmission (circuit breakers, transformers etc.) is much lower than the equivalent DC transmission. ... It is easier to convert AC to DC rather than the other way around.

Muhammad Faisal Ronaq
par Muhammad Faisal Ronaq , junior Engineer Electrical (Project) , Unisons steel solution

AC can be easily transformed to DC with the help of rectifiers whereas in DC it is not possible. AC can be easily stepped up or stepped down by transformers whereas in DC it is not possible because transformers work on a changing emf principle. Generation of Ac power is cheaper than DC power

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