why the CT ratio secondary is always divided by 5 for eg(
75/5,80/5,50/5)
Answer Posted / k.prakashchandra
Secondary 5 A was used earlier.Now with electronic relays
and meters ,the secondary is 1 A
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?
What is voltage ratio of a transformer?
how freewheeling diode improves the powerfactor
please send me privious exam's queation papers of section engineer(electrical).
What descriptive information does the NEC require to be marked on all conductors?
I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.
How much ph is maintained of water resistance starter for slipring induction motor ?
Phase control and integral control are used for?
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?
what is apparent poewr, reactive power, & active power?
what is the difference b/w ground & virtual ground?
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?
how wecalculate breaking capcity of acb mcb mccb .explain with example
Please explain me abt PQ diagaram in the power sector.