how much current will be drawn by 3 phase, 415v, 50 hz, 20
ton central ac
Answer Posted / asif
One Toe = 3.5 kw
20 * 3.5 = 70 kw
P = 1.732 * v * I * cos0
70000 = 1.732 * 415 * I * 0.8
I = 122 A
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
Explain what are inter-poles and why they are required in a dc machine.
In constant power region of 3-phase IM torque-speed characteristics, if frequency increases slip A does not alter B decreases C increases D none of above
Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?
How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
Differentiate between Zero and Negative sequence current
we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.
Explain the laying procedure and laying depth of submarine/subsea power cable for 220/400KV system? Also available cable diameter?
How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?
I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....
how to identify the cable quality and what is flame proof cable
what is package substation.how many types they have
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
Difference between a pilot wire and a normal conductor?
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com