how to caluculate APFC panel rating, my running Load is
1320KW, Present P.F 0.76 to 0.8 we need 0.98 p.f
Answers were Sorted based on User's Feedback
Answer / ak
KVAr = KW(multiplication factor )
1320(tan@1-tan@2)
cos@1-intial P.f
cos@2-final P.f
kvar=1320(0.541)
Kvar=715
| Is This Answer Correct ? | 120 Yes | 19 No |
Answer / anjaneyulu
we required runnig load and maximum demand also
then only we will get perfect KVAR
| Is This Answer Correct ? | 53 Yes | 11 No |
Answer / deniram anandrao nikhare
KVAR Required = Operating KW x [Tan (A1) - Tan (A2)]
Where A1 = Inverse Cosine of present power factor
= Cos-1(0.78)
= 38.739
A2 = inverse Cosine of desired power factor
= Cos-1(0.98)
= 11.478
Tan(A1)=Tan(38.739)=0.8022
Tan(A1)=Tan(11.478)=0.2030
Hence,
KVAR Required=1320 x (0.8022-0.2030)
SO KVAR NEEDED TO ATTACHED=790 kVAR
| Is This Answer Correct ? | 38 Yes | 4 No |
Answer / ytd
Please refere Capacitor manufacturers catlogue where there
is table to improve PF Vs. Load.
| Is This Answer Correct ? | 55 Yes | 38 No |
Answer / ajeet singh
Input Initial Power Factor : .76
Input Desired Power Factor: .98
Input Load KW (KW) : 1320 KW
SO KVAR NEEDED TO ATTACHED :860 KVAR IF U WANTS .98
KVAR NEEDED TO ATTACHED :940 KVAR IF U WANTS .98
THESE 2 PANELS U NEED TO BE INSTAL ON THIS CONNECTED LOAD
AND ALSO DEMAND WILL GO DOWN
VISIT: www.sigmacontrols.net
| Is This Answer Correct ? | 23 Yes | 9 No |
Answer / santosh
please give the details how much is your inductive load (
motor ) or give the connected load list & presently
connected capacitor.( kvr)
| Is This Answer Correct ? | 14 Yes | 3 No |
Answer / tejas doli
CHECKED THE WHOLE DAY LOAD CACLULATION
CHECHED THE KVARH, KVA, KWH READING
| Is This Answer Correct ? | 12 Yes | 8 No |
Answer / ajay sharma
290 kvar panel of 14 stage
conected relay {fifo}
| Is This Answer Correct ? | 8 Yes | 4 No |
What will happen if we rotate the horizontal plane in anti-clock wise instead of clock wise and make the drawings in 2nd and 4th quadrant?Why the horizontal plane always rotates in clock wise?
Why big tyres are used for rear wheel ?
What is g.i.?
types of stainless steel.why does this called stainless.what is passivation related to SS? What is sensitisation in stainless? Examples of diffrent type of steel e.g. austenatic,martensite,ferritic etc. 304,303,316. How to get rid of carbide formation in SS and stablization in SS.(347 etc.)Different type of heat treatments. Iron carbon diagram. Nelson chart with respect to corosion. Diffrent type of corosion and causes. Carbon equvalent number. Welding related questions.(requirement of post and pre heating in welding). welding of SS. If you have pre experience in maintenance then Material and welding related questions will be there. Then various types equipment in plant (a) static (b) rotatic in pumps and compressor,turbines funda of balance drum and balance disc, balancing line. Impulse wheel, wheel chamber pressure and its effect on turbone health if this increases. Thermal expansion of turbines and with respect to how foundation bolting are designed. Fixing of lower casing before dismantling. Most important shaft alignment and balancing of rotating equipment,classification of static and rotatic equpment used in process plants. Materials for diffrent services as refinery plants fertilizer plants, cement plants, sulphur plants, crude oil with higher sulphur services, then third important thing is codes, standards and recommended practices of diffrent organisation like ASTM,ASME,API,TEMA,BIS,IS,ISO,NPFA,OISD etc. diffrent type of work permit systems fire and safety point of view.
What is the difference between efficiency and effectiveness of an machine,man,etc., proof with example?
What is cop inAir cnditioning and how we calculate it.
Give the purpose of nozzle in impulse turbine?
2 Answers ABC Inc, RRB, Siemens,
why we transfer FA(full arc) to PA(partial arc) in steam turbine at specified load?
substance is flowing in a pipe of 200 mm inside cylinder diameter ot an average velocity of 3m/sec. At a given section of the pipe line the pressure is 1.5 MN/m² absolute. what is the flow work of 0.5 cubic meter, expressed in joules passing through section? (a)1J, (b)75000J, (c)90000J, (d)25000J
Srinagar is situated on the bank of the river
What is the differenc between total moisture and inherent moisture in coal ?
Why supercritical boilers use less amount of steel compared to non-supercritical boilers ?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)