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What is the advantage of three phase over single phase ?

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Question ajoutée par Danyal Shahzad , Maintenance Executive , Tapal Tea (Pvt) Ltd
Date de publication: 2014/05/12
Muhammad Amjad khan Lashari
par Muhammad Amjad khan Lashari , Electrical Engineer , Fakieh Poultry Farms

3 Phase motors have very good power factor as compared to single phase. Due to this reason 3 phase motors on produce less reactive power which is mostly cause of loss in kind money. The other benefit is , there is no use of capacitor for starting 3 phase motors while 1 phase have. 3 phase motors are more energy efficient for larger capacities.

three  motors and other load is easy to use . three phase is low current for motors . single phase is highcurrent  . running and silent is very good for three phase motors. especially three phase is necessary for jobs.

Sreten Lukic
par Sreten Lukic , Project Manager , De-Tek Germany

your question is not complete. Selection of single-phase (or three-phase) depends primarily on the type of object (installations), and of the demands of installed (or simultaneous) request forces.

Also if it is not possible to fulfill the condition of symmetry of loads (AC system), cost-effective of single-phase supply is the correct decision... etc....

 

abdulrahman Hussein
par abdulrahman Hussein , Electrical Security Engineer , Consolidated Gulf Company (CGC)

Three phase systems are more efficient compared to single phase since it produces power with lower losses compared to single phase. Moreover, Less pulsation compared to single phase systems in case of machinery systems and hence lower noise produces in three phase machines.

Mahmoud Saad
par Mahmoud Saad , Electrical Transportation Engineer , Caltrans

Three phase i.e.3 Phase motors are more Horsepower efficient and less maintenace/ complexity compared to single Phase

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