Power Quality refers to the stability, reliability, and efficiency of electrical supply, measured in terms of voltage, frequency, waveform, and continuity.
Power Quality Improvement
Power Quality Improvement
At PurityElec, we understand that poor power quality can lead to serious operational problems, including equipment failures, production downtime, increased energy costs, and reduced efficiency. That’s why we provide advanced Power Quality Improvement solutions designed to keep your electrical systems running smoothly, safely, and cost-effectively.
What is Power Quality?
Power quality refers to the stability, reliability, and efficiency of your electrical supply. Poor power quality is often caused by issues like voltage fluctuations, harmonics, unbalanced loads, and reactive power.
Why Power Quality Matters
• Protects Equipment – Prevents damage to sensitive electrical devices.
• Reduces Energy Loss – Lowers operational costs by improving efficiency.
• Improves Reliability – Minimises downtime and production interruptions.
• Enhances Safety – Reduces the risk of electrical hazards.
Our Power Quality Solutions
We provide a comprehensive range of services to detect, analyse, and eliminate power quality issues, including:
• Harmonic Mitigation – Reducing electrical distortions for cleaner power.
• Reactive Power Compensation – Balancing power flow to improve efficiency.
• Voltage Regulation – Maintaining stable voltage levels across the system.
• Load Balancing – Distributing power evenly to avoid overloading.
• Surge & Transient Protection – Safeguarding against sudden power spikes.
Contact PurityElec today for a professional Power Quality Audit and experience the difference.
Frequently Asked Questions
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Q1. What is Power Quality (PQ)?
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Q2. Why is Power Quality important?Poor PQ can cause:
- • Equipment malfunction or premature failure
- • Production downtime and revenue loss
- • Overheating of transformers, motors, and cables
- • Higher electricity costs due to inefficiency and penalties
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Q3. Who is affected by poor power quality?
- • Industries with heavy non-linear loads (steel, cement, chemical, textile)
- • IT data centers, telecom, and hospitals (sensitive loads)
- • Commercial complexes with HVAC, lifts, and lighting systems
- • Renewable energy plants (solar/wind inverters)
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Q4. What are common Power Quality problems?
- • Voltage sags, swells, and flickers
- • Harmonics and waveform distortion
- • Low power factor
- • Unbalanced loads
- • Transients and surges
- • Voltage interruptions
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Q5. What causes poor Power Quality?
- • Non-linear loads like VFDs, UPS, rectifiers, arc furnaces
- • Switching of heavy loads or capacitor banks
- • Grid disturbances (lightning, faults, unstable renewable inputs)
- • Poor wiring, grounding, or undersized equipment
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Q6. How can Power Quality be improved?
- • Harmonics mitigation: Passive filters, Active Harmonic Filters (AHF)
- • Power Factor Correction (PFC): Capacitor banks, APFC panels, RPG
- • Voltage regulation: Static VAR compensators (SVC), STATCOM, DVR
- • Load balancing: Proper phase distribution
- • Surge protection: Surge Protection Devices (SPD), isolation transformers
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Q7. What is the role of Active Harmonic Filters (AHF) in PQ improvement?AHFs cancel harmonics dynamically and also provide reactive power compensation, making them highly effective for non-linear and fluctuating loads.
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Q8. Can renewable energy integration affect PQ?Yes. Inverters and variable renewable outputs can introduce harmonics and flickers. Proper filters and STATCOM/RPG solutions ensure stable PQ.
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Q9. What standards define acceptable Power Quality levels?Through:
- • IEEE 519: Harmonic limits for current and voltage
- • IEC 61000 series: EMC and PQ standards
- • IEC 61000-4-30: Measurement of PQ parameters
- • Local utility and grid codes
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Q10. How do I know if my facility has poor PQ?
- • Frequent equipment trips or overheating
- • Flickering lights, voltage fluctuations
- • Unexpected transformer or cable failures
- • High utility penalties for low PF or harmonic distortion
- •A Power Quality Audit or analyzer measurement report
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Q11. What are the benefits of Power Quality improvement?
- • Increased equipment reliability and lifespan
- • Reduced downtime and maintenance costs
- • Lower energy losses and electricity bills
- • Compliance with grid/utility requirements
- •Enhanced safety and system stability
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Q12. Is Power Quality improvement cost-effective?Yes. Most PQ improvement investments (filters, PF correction, DVR, RPG) pay back in 1–3 years by avoiding penalties, reducing losses, and preventing downtime.