giving details of reactive power compensation in simple way and the study we had and on base of it d capacitor we designed... and some references are also there to get more details of reactive power and its compensation
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Reactive power compensation
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2. Introduction Literature Survey Problem Identification Objective Of The Project Project Analysis And Design Project Implementation Conclusion Future Work Suggested Reference CONTENTS
8. Power factor correction capacitors; Essentials & Cautions- M.H.Shwehdi, M.R.Sultan Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran Date of Current Version : 06 August 2002 Page(s): 1317 - 1322 vol. 3 Optimal selection of capacitors-IEEE: S.Sudehararajan & A Pahwa Dept. of Electr. & Comput. Eng., Kansas State Univ., Manhattan, KS Date of Current Version : 06 August 2002 Page(s): 1499 - 1507
9. Optimal Reactive Power Planning and Compensation Effects on Transmission Loss Components K. Barot; H. Bhattacharya, Power & Energy Syst. Group, Univ. of Waterloo. Date of Current Version : 23 July 2007 Page(s): 1 - 7 Universal input single-phase single-stage power supply with power factor correction and automatic voltage clamping Chongming Qiao; Smedley, K.M. Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA Date of Current Version : 07 August 2002 Page(s): 907 - 913 vol.2
10. High-capacity hybrid power filter for harmonic suppression and reactive compensation in the power substation Lina Wang An Luo Dept. of Electr. Eng., Tsinghua Univ., Beijing Date of Current Version : 10 January 2005 Page(s): 215 - 220 Vol.1
19. AREA OF FOCUS As a part of our project, we did a case study on Cochin Port Trust and found that the power factor was below 0.9. as per our calculation, at 0.85 pf , the total cost including penalty was Rs. 3,51,394.25 per month . It’s noticed that the total cost got reduced to Rs. 3,32,653.25 per month , after the installation of the capacitor bank that increased the PF to 0.94 . The cost of capacitor was found to be Rs.200/kVAR and the cost of capacitor installation could be replaced in a period of 1 year and 2 months.
20. SITES MOTORS RATING WORKING PERIOD(hrs) TRUE POWER(kW) TOTAL kWh PUMP HOUSE 1 MOTOR 1 52 HP 3 MOTOR 2 52 HP 3 76.5 229.5 PUMP HOUSE 2 MOTOR 1 37 Kw 3 MOTOR 2 37 Kw 3 74 222 RAIN WATER PURIFING PUMP 5 HP 3 3.8 11.4 AD BLOCK INDUCTION MOTOR 60 HP 6 INDUCTION MOTOR 3.7 Kw 6 47.83 287 FIRE HOUSE PUMP 60 HP 10 44.13 441.3 TELEPHONE EXCHANGE MOTOR 20 HP 24 14.71 353 BELT DRIVE MOTOR 1 7.5 HP MOTOR 2 7.5 HP 6 11 66.2 SUPPLY MOTOR 5 HP 6 3.68 22.1 NORTH END MOTOR 12 Kw 12 12 144 CT CANTEEN MOTOR 12 Kw 16 12 192 12th CROSS ROAD MOTOR 12 Kw 16 12 192 RNAS MOTOR 1 12 Kw 12 MOTOR 2 12 Kw 12 24 288 CLUB MOTOR 12 Kw 14 12 168 HOSPITAL MOTOR 1 12 Kw 24 MOTOR 2 12 Kw 24 MOTOR 3 12 Kw 24 36 864 CISF MOTOR 1 12 Kw 24 MOTOR 2 12 Kw 24 24 576
24. Selection of capacitor for 0.85 pf PF old = 0.85 PF new = 0.94 M =0.367 kVAR cap =165.81kVAR Cost of capacitor= Rs 200 per kVAR Total cost of capacitor, kVARcap =165.81 kVAR * Rs 200 = Rs 33,162. Incentive = Rs 2008.00/month. The capacitor installation cost will be compensated in 33162/2008 =16.51 months =1 year & 2 months .
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28. FUTURE SCOPE In our project, we have not considered harmonics. In future, we can improve the power factor by adding a reactor circuit with the capacitor bank to eliminate harmonics. As a result, especially the 3 rd harmonic component can be detected and suppressed and power factor in whole can be raised up to a value of 0.99.