To reduce the penalty of the industry

1. AUTOMATIC POWER FACTOR
COMPENSATION FOR INDUSTRIAL USE TO
MINIMIZE THE PENALTY
Under the Guidance
Ms Sumangala M K
Presented By
Yuvraj
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2. Content
• Introduction to Energy
• What is power Factor
• Nature of Load (RLC)
• Power Factor Correction
• Block Diagram
• Working
• Project module
• Merits of improved Pf and Demerits of low Pf

3. Introduction

4. What is power factor
• Power factor is defined as the ratio between true
power and apparent power flowing through the circuit.

5. Contd...
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6. Nature of load
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7. AC Through RLC
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8. Power Factor Correction
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As a means of cost savings

9. Block Diagram
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10. Working
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11. Zero crossing detector
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12. Module
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13. System Before PFC
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PF = 0.68 Lagging
ACTIVE POWER (P) = kW
APPARENT POW
ER
(S) = kVA
REACTIVEPOWER(Q)=kVAr
Θ1 = 47.17°

14. New System Power Triangle
PF = 0.92 Lagging
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P = kW
S2 = kVA
Q2=kVAr
S1 = kVA
Q1=kVAr
Θ2 = 23.07°
Qold=kVAr

15. Merits of Improved Pf
• Improved plant efficiency
• Additional loads can be added to the system
• Reduced overloading of cables,transformers,
switchgear etc.
• Improved network voltage
• Improved starting torque of motors
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16. Demerits of Low Pf
• Increases electricity costs
• Causes overloading of Generators,transformers and
distribution System
• Greater voltage drops and Power losses
• Low efficiency and unnecessary wear and tear to
Industrial electrical equipment
• Reduces load handling of the plant’s Electrical system
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