#5 Major Advantages of Direct Current over Alternating Current

Advantages of DC over AC

These are the #5 Major Advantages of direct current over alternating current are :

1. In industries

a.c. is commonly used but in some applications like battery charging , electroplating , electrolysis etc. only d.c. supply is suitable

2. Speed controls

D.C. Motors are better suited for speed controls over wide range .

3. In a.c. transmission line

In a.c. transmission line if there is no load at receiving end , charging current flows through the line .But in d.c. line if there is no load at receiving end , there is no current flowing through the line

4. Alternating current flowing through a.c. line produces alternating flux. This alternating flux interferes with telephone lines . This problem is not there in D.C. lines

5. In a.c. , eddy current loss, dielectric loss and skin effect occurs . Whereas such losses are not there in d.c. lines

Advantages of DC over AC

DO YOU KNOW

➤ Advantages of A.C. Over D.C.

Summary of this chapter

⏩Energy is available in different forms such as Electrical, Mechanical, Heat , Sound and wind Energy .

⏩D.C. Flows always in one direction , from +ve to -ve of supply source

⏩ The magnitude and direction of A.C. keeps on changing periodically with time.

⏩ A.C. as well as D.C. are being in our day to day life

⏩A.C. can converted into D.C. by using rectifier and D.C. can be converted into A.C. by using inverter.

➤ Difference between A.C. and D.C.

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