Why effective AC resistance is more than DC resistance of a
transmission line?

Answer Posted / pawan pal

Ac resistance is high than dc.
Due to corona effect and skin effect ,
Frequency, impedance.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?

1775


What is the difference between security constraint unit commitment and security constraint optimal power flow?

1212


What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

1733


HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2141


Mention the disadvantages of low power factor? How can it be improved?

668






redundant connection in contactor?

2050


What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1546


I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

1441


What are dependent sources?

654


1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

1217


Under wat condition statcom operates as an inductor for the transmission line?

1423


why are the maintaine power factor and how can this control and this is how work.

1474


Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

1520


what is the size of ht cable of 33kv ht line and transformers ratings are 1 Mva and 5mva.please send formula also.

984


what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?

1534