Dear All,
If we have 8No. 11kV cables running underground that are required to supply 20MW to a new development. What is the sustained current in Amps? Please advise.
Answer / k suresh kumar
From the three phase power equation we can calculate current.
i.e P = 1.74 V(line)* I(line) * cos (pie)
From this u can findout line current of system.
Take cos pie as 0.98
Is This Answer Correct ? | 0 Yes | 0 No |
Relation between pyramids and electrical technology?
Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.
why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%
how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.
to improve the existing power factor whether capacitors have to be added in series or parallel.and why
effect of decrease in excitation?
What is the difference between AC and DC injection methods for rotor earth fault protection
0 Answers Asian Alliance Insurance, NBVL,
If 440 V supply has given at the secondary winding of transformer at that time if we apply 11 KV at primery then what will happen???????
Define resonant peak?
How many types of Differential protection are there? and what the special arrangement are made at the time of charging of a transformer on the Differential protection?
why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?
Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?