Question

What are the advantages and disadvantages of dc circuits?

Answer 1

Hey dear.....

Here is your answer...

✨Advantages and disadvantages of DC (Direct current)

⭕Advantages DC (Direct Current)

➡️Less number of conductors needed as DC transmission requires two conductors where as a three phase 
AC transmission requires three conductors.

➡️There is no skin effect in DCand hence the cross section ofentire conductor is fully utilized. Thus the effective resistance of the conductor in DC is less than that of AC.

➡️There are no effects of inductance, capacitance and phase angle displacement on the lines in DC transmission.

➡️The DC transmission has better voltage regulation. Due to the absence of inductance the voltage drop is comparatively less in DC than that of  an AC system.

➡️The corona effect and interference with communication circuits is less in DC.There are no stability and synchronizing problems in Direct Current transmission

➡️.The potential stress on the conductors is less in DC transmission and hence it requires less insulation.

⭕Disadvantages of DC (Direct Current)

➡️Difficulty of generating the DC at high voltage because of the commutation problems

➡️.The voltage in DC system cannot be easily stepped up for high voltage transmission. Whereas in AC system it can be easily done with a transformer.

➡️Moreover DC circuit breakersand switches offer more limitations.

....... ALONE BUT HAPPY.......

Hope it helps you!!!!!