Power Quality Solutions
Increased Productivity, Extended Machinery Life Time and Network Stability
Elspec’s power quality solutions compensate for full load reactive power demands in less than one network cycle. Our real-time compensation systems stabilize voltage, enhance PF, mitigate Harmonics and reduce voltage flickering & fluctuations in real-time. Thanks to their transient switching technology through precise zero-crossing thyristor control, Elspec’s solutions enable quick problem identification, power factor correction and faster decision making. The result is smoother operation, better equipment protection, and standard regulations compliance. Elspec solutions can be found in almost any sector including: Data Centers, Hospitals, Semi-Conductors, Plastic industry, Silicon & Metal Factories and Renewable Energy applications
Real-Time Response
Corrects reactive power and voltage disturbances within one electrical cycle, ensuring immediate system stability without delay.
Maximum Energy Efficiency
With losses of only about 2%, Elspec’s solutions minimize waste, lower operating costs, and improve overall system efficiency.
Monitoring & Full Visibility
Integrated with G4 Analyzer and PQSCADA Sapphire for real-time monitoring fast troubleshooting and improved operational reliability.
Real Time Dynamic Compensation at Medium Voltage
Elspec’s MV Equalizer stabilizes medium voltage networks by responding instantly to rapid load changes. It mitigates reactive power fluctuations, harmonics, voltage drops, and flicker in real-time—supporting overall grid reliability. Using advanced thyristor-based switching at zero-crossing, it ensures smooth, transient-free operation. With patented PQZIP™ technology and dual DFR units, it delivers precise control, event recording, and I²t protection. Available up to 115 MVAr for indoor or outdoor use
Equalizer
Real Time Dynamic Compensation at Low Voltage
Elspec’s Equalizer is a high-performance power quality solution designed for real-time compensation of dynamic loads. It mitigates voltage drops, filters harmonics, reduces flicker, and corrects reactive power- all in less than 1 network cycle—enhancing efficiency, protecting equipment, and improving process stability. Ideal for industries such as automotive, food & beverage, manufacturing, and renewable energy, the Equalizer ensures stable, reliable power even under fast-changing load conditions. Its thyristor-based zerocrossing switching guarantees smooth, transient-free operation.
Advanced Harmonic Mitigation with Real-Time VAR Compensation
Elspec PQ-Hybrid is a compact hybrid power quality solution that tackles both harmonic distortion and dynamic reactive power—simultaneously, and in less than one electrical cycle. It combines ultra-fast thyristor-based switching for real-time VAR compensation and Active Harmonic Filter (AHF) that injects counter-currents to eliminate harmonics at the source. The PQ-Hybrid also operates in SVG mode for smooth, stepless compensation, delivering stable, distortion-free power under the most demanding conditions. Ideal for industries with non-linear and rapidly changing loads—such as automotive welding lines, Solar rooftops buildings, semiconductor manufacturing, data centers, banks and renewables.
Equalizer Unbalanced
Real-Time Compensation for 2-Phase Asymmetric Load Conditions
Elspec’s Equalizer Unbalanced is designed for 2-phase systems or highly unbalanced 3-phase loads—where one phase consumes 30% or more power than the others. It compensates each phase separately in real time, correcting reactive power, filtering harmonics, and reducing flicker. Ideal for industries with uneven load profiles like textiles, food processing, welding, packaging, and water treatment, it ensures voltage stability, protects equipment, and improves overall power quality.
Equalizer ST
Motor Startup Power Quality Solution
The Equalizer-ST is a real-time high performance cost effective motor start-up solution, a single system is able to handles multiple motors. Elspec’s Equalizer-ST is a highly accurate motor start-up solution for voltage drops creating by starting large motors, reducing voltage flickering & fluctuations. The Equalizer-ST is a unique system that compensates motor start-up in real time without creating unwanted harmonics.
Static VAR Compensation System
Elspec’s Activar is a solid-state, transient-free VAR compensation system ideal for stable reactive loads. Using SCR-SCR switching and advanced control algorithms, it compensates lagging power factor, filters harmonics (up to the 63rd order), and improves equipment lifespan. Designed for slow-reacting load changes, this power quality solution ensures high efficiency and safety with zero-crossing switching.
Power Quality Solutions in Compact Design
Elspec offers compact versions of all its low voltage power quality systems—Activar, Equalizer, and Hybrid—engineered for installations with limited space. Designed in a footprint of just 120 × 102 × 76 cm, these custom-built systems deliver the same highperformance compensation for voltage drops, harmonics, and flicker, all with transient-free zero-crossing switching. Each system is modular, upgradeable, and can be configured for hybrid layouts with integrated active harmonic filtering—without compromising on performance or flexibility.
APPLICATIONS
Welding & Metal
Stabilize voltage, eliminate flicker, and improve weld quality in fast-changing, highload production environments.
Water Utility Pumps
Ensure stable voltage and efficient pump operation by compensating for rapid load changes and preventing power quality disturbances.
Healthcare
Ensure stable power for critical medical systems with highreliability, extend equipment lifespan and reduce service costs.
Trains & Railways
Stabilize power across the rail network with dynamic voltage support and full load compensation to reduce losses, avoid penalties, and boost capacity.
Renewable Energy & Solar Rooftops
Ensure grid code compliance, Harmonic mitigation and consistent power supply with flexible voltage control, centralized or stepless compensation and power factor correction.
Food Processing & Packaging
Maintain process stability and product quality by eliminating voltage fluctuations, reducing downtime, and ensuring reliable operation.
Port Cranes
Stabilize voltage, reduce current draw, and minimize system losses to enable smaller installations and significant energy savings
Generators
Optimize generator performance with real-time power factor control to increase output, reduce fuel consumption, and minimize the need for oversized or multiple units.