Sizze of Si of Ca Capac pacitor itor Ban Bank f Electrical Load Detail Supply System Supplay Voltage Supplay Frequency
3 415 50
Phase Volt Hz
Total Electrical Load
516
Kw
Load Current (Enter only if You Know) Efficiency Final Load Current
897 100 897
Am p % Amp
Capacitor Voltage Calculated Old Power Factor (Cosф1) Enter Old Power Factor (Cosф1) Targeted Power Factor(Cosф2) Capacitor Connected in Daily W orking Hours Tarrif Charge/Kva Tarrif Charge/Kw
415 0.80 0.8 0.98 Star 24 100 10
Capacitor Cost/Kva Annual Intrest & Depriciation/Capacitor
60 12
Volt
Hr. Rs Rs Rs %
1.0
or Power Factor Correction Size of Capacitor Bank & Annual Saving Size of Capacitor Bank Leading KVAR Leading KVAR supplied by each Phase Capacitor Charging Current (Ic) Capacitance of Capacitor Required Capacitor is
282 94 392 5200 3 No of
Kvar Kvar/Phase Amp μF 94 Kvar
Required Size of Capacitor Bank Protection of Capacitor Bank
282 Kvar ,
Size of Main Fuse of Capacitor Bank Size of Circuit Breaker (Nr. This Value) Thermal Setting of Circuit Breaker Magnetic Setting of Circuit Breaker Size of Cable For Capacitor Connection
784 588 588 3919 560
Amp Amp Amp Amp Amp
645 64500 4520160 45201600 45266100
Kva Rs Kwh Rs Rs
527 52653 4520160 45201600 45254253 16920 2030 45256283
Kva Rs Kwh Rs Rs Rs Rs Rs
45266100 45256283 9817
Rs Rs Rs
Size of C Capacitor No of Ste Targeted CT Ratio
415 Volt Steps & Si
Before Power Factor Correction Max Demand KVA Demand Charge Unit Consumed/Year Energy Charge/Year Total Annual Cost
De
Step 1 2 3 4 5 6 7 8
After Power Factor Correction Max Demand KVA Demand Charge Unit Consumed/Year Energy Charge/Year Total Annual Cost Capital Cost of capacitor Annual Inte and Dep Total Annual Cost
Annual Saving Due to Capacitor Bank Annual Cost before P.F Correction: Annual Cost After P.F Correction: Annual Saving
Total:
Actual Siz Minimum Step Com C/K Value Design of
Jignesh.N.Parmar,
[email protected] www.electricalnotes.wordpress.com
igning & Configuration of Capacitor Bank pacitor Bank Voltage s Power Factor
282 415 8 0.98 300
Kvar Volt 24 98 5
ze of Capacitor in Capacitor Bank Actual kvar 25 25 25 25 25 25 50 100
Power Ratio 1 1 1 1 1 1 2 4
300
12
Kvar 23.50 23.50 23.50 23.50 23.50 23.50 47.00 94.00
282
Amp 34.09 34.09 34.09 34.09 34.09 34.09 68.17 136.34
409 1
:Result:
e of Capacitor Bank Main Breaker Rating bination Capacitor Bank
300 Kvar 613.5 Amp 1,1,1,1,1,1,2,4,,,, 0.58 OK
0.60
0.75
Kw Kva Star Delta 1 3
2.5 5 7.5 10 20 25 35 50 60 75 100 125 150 175 200 225 250 300 400
$
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