how to calculate capacitor rating for an induction transformer
ex.for 12 mva furnace calculate capacitor rating
Answer Posted / krishna.bagavan
for 12mva at 0.8 pf mw= 0.8 x 12 mva
= 9.6
as per p.f.triangle mvar=square root of mw2+mva2
ie. square root of 9.6 x 9.6 + 12 x 12.
= square root of 92.16 + 144
=square root of 236.16
=16 mvar
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
what is alluminium arm in ab conductors
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
how to calculate the no load current in transformer?
What is an iron loss or core loss pi?
What happens if we connect a single phase energy meter in reverse polarity.
how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????
use of PIR in ehv breaker
how we calculate the withstansing current capacity of wires&cables?
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
Do closed loops systems require manual input?
How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?
Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp