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Power quality management

Power quality issues are a primary cause of device malfunction, equipment failure, and power outages, resulting in costly unplanned downtime. Improved power quality optimises operations and equipment to ensure business continuity.

Why power quality matters

Power quality underpins the efficiency and effectiveness of electrical systems. Effective power quality optimises performance, contributes to sustainability, and safeguards investments in equipment and infrastructure.

Our solutions address the most common problems, ensuring that you always have clean, high-quality power for less unplanned downtime, better equipment performance, and lower electricity bills.

Did you know?

Poor power quality causes annual global losses of up to $300 billion (US)¹

More than 80% of power quality issues are from voltage sags²

A 0.1 second interruption can be just as costly as a one-hour interruption³

Explore the five pillars of optimal power quality

Efficiency and cost savings

Integrate capacitors, synchronous condensers, filters, and monitoring systems to optimise reactive power and improve efficiency. Power factor management reduces capital expenses by optimising system capacity, eliminates utility PF penalties, and lowers losses in transformers and conductors. It also maximises power usage and reduces CO₂ emissions.

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Explore our range of products that help improve power factor correction

PowerLogic AccuSine™ EVC Plus

PowerLogic™ AccuSine PFV+

Reliability and efficiency with active filters

Employ active filters and voltage regulators to boost reliability and optimise power flow. Safeguard against harmonics, ensure power quality, and balance loads to enhance equipment efficiency and longevity. Reduce outages and energy waste and optimise operations by trimming operational costs and extending the lifespan of your electrical assets.

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Discover our products designed for harmonic mitigation

PowerLogic AccuSine™ PCS Plus Power Correction System

PowerLogic AccuSine™ EVC Plus

Optimise voltage stability

Voltage deviations can lead to equipment malfunction, data loss, or production downtime. Ensure stable operation of sensitive equipment by actively monitoring and correcting these voltage dips, sags, and swells. This minimises downtime and maintains uninterrupted, stable power flow, enhancing overall system reliability.

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Learn more about our voltage regulation products

Precision monitoring

Capture accurate power quality data, including voltage fluctuations, frequency variation, and harmonic distortion. Log events like voltage sags, swells, and transients, providing essential analytics to optimise electrical system performance and reliability.

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Capture power quality events with our range of power quality metres

PowerLogic ION9000

PowerLogic™ ION7400 Power Quality Meters

PowerLogic™ PM8000 Power Quality Meters

Manage and optimise energy

Track and analyse power data across facilities. Enable energy optimisation, cost reductions, and enhanced power reliability by monitoring electrical systems and energy consumption in real time. Intuitive dashboards and customisable reports simplify data management and decision-making for improved operational performance.

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Manage power quality with our portfolio of power management software

EcoStruxure Power Monitoring Expert

EcoStruxure™ Power Operation

EcoStruxure™ Energy Hub

We have the solutions to your power quality challenges

Voltage fluctuations and harmonic distortion can lead to equipment failure, data loss, and operational interruptions. High power quality maintains the integrity of sensitive electronic equipment, supports continuous operation, and safeguards against data corruption. It's fundamental for the reliability of data centre cloud services, data storage, and processing operations.
Ensuring good power quality is vital for infrastructure stability and charger reliability. Mitigating voltage fluctuations and harmonic distortion is crucial as EV numbers grow. Power quality is essential for the continued sustainable growth of our eMobility infrastructure, charger uptime, enhanced user experience, and EV integration on our roadways.
- Learn more about out power quality solutions for eMobility
Power quality guards against equipment malfunctions and data errors caused by voltage fluctuations and harmonic distortion. It helps ensure reliable diagnostics, treatments, and life-support functions. Power quality is vital for minimising downtime, safeguarding sensitive equipment, and providing patients with a safe, uninterrupted care environment.
Maintaining high power quality ensures process reliability, reduces downtime, and improves energy efficiency. It's essential for operational resilience and meeting production targets while adhering to safety and environmental standards. It also underpins stable operations, safeguarding against losses and ensuring continuous, safe production.
Poor power quality severely impacts the fabrication process, leading to defects in semiconductor wafers and substantial financial losses. High power quality ensures smooth operation of highly sensitive equipment, is crucial for maintaining process integrity, and supports consistent production quality. It also maximises yield and is essential for ongoing innovation.
Good power quality optimises the performance of solar panels and microgrid components, helping ensure smooth integration of utility grids and supporting the consistent flow of clean energy. It helps renewable systems deliver on their promise of sustainability and resilience, ensuring they can effectively feed industries and communities with minimal disruption.

See what our customers are saying

Discover how this leading glass manufacturer improved their power quality and reduced their electricity bills by implementing an EcoStruxure™ Power solution based on VarSet Smart capacitor banks, PowerLogic power metres, and EcoStruxure Power Monitoring Expert software.

Learn more

¹World Bank Group, 2019. ”Underutilised Potential: The Business Costs of Unreliable Infrastructure”

²Science Direct, 2022. “A review of voltage sag control measures and equipment in power systems”

³European Copper Institute, 2015. “Introduction to Power Quality”

What is Power Quality?

Power quality refers to the stability and consistency of electrical power supplied to different equipment. It ensures that voltage, frequency, and waveform stay within the required limits. Poor power quality can result in malfunctions or reduced efficiency of the equipment. Maintaining good power quality is crucial for the smooth operation of electrical devices and systems.

How Do We Measure Power Quality?

Power quality is measured with specialised tools like power analysers, voltage recorders, and harmonic meters. These instruments monitor key factors such as voltage fluctuations, frequency deviations, harmonic distortion, and power surges. By detecting irregularities, technicians can optimise the performance of electrical systems, ensuring stability and reducing the risk of equipment failure or inefficiencies caused by poor power quality in industrial or commercial settings.

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Help Centre

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1. How can I tell if I have a power quality problem?

Signs of power quality problems can include flickering lights, equipment malfunctions, frequent circuit breaker trips, or unexplained device failures. Monitoring systems can help detect less obvious issues.

2. What can cause poor power quality?

Poor power quality can be caused by various issues, such as electrical surges, voltage sags or swells, harmonic distortion from other devices on the network, or faulty wiring. Most power quality issues originate from within a facility.

3. How do I fix power quality issues?

Fixing power quality issues involves first identifying the problem with power monitoring equipment, then installing appropriate solutions like uninterruptible power supplies (UPSs) and dynamic voltage regulators, or harmonic filters to mitigate the specific issues. Then, with an appropriate energy management system (EMS), discovering the root cause to ensure any underlying issues within a facility are addressed.