Standard Capacitors

An RTPFC (Real-Time Power Factor Correction) Panel, also known as a Thyristor Controlled APFC Panel, is an advanced automatic power factor correction system designed for instantaneous and dynamic reactive power compensation in electrical networks.

Unlike conventional APFC panels that use contactors, the RTPFC panel employs thyristor-based switching (SCR modules) for capacitor banks, allowing fast, arcless, and transient-free switching. This ensures smooth compensation, even under rapidly changing load conditions such as welding machines, rolling mills, compressors, elevators, or data centers.

• Real-time response (<40 ms) to load variations

• Thyristor (SCR) switching – noiseless, spark-free, and highly reliable

• Transient-free capacitor switching, ensuring no voltage dips or spikes

• Microprocessor / microcontroller-based APFC relay for precise control

• Automatic step switching based on real-time kVAr demand

• Inbuilt protections for over-voltage, under-voltage, unbalance, and harmonic distortion

• Modular design – easy maintenance and scalability

• Heavy-duty capacitor banks (APP / MPP / Heavy Duty type)

• Cooling system: Forced air cooling with temperature monitoring

• Communication-ready: RS-485 / Modbus (optional)

• Instantaneous correction of lagging power factor

• Elimination of transients during capacitor switching

• Reduction in reactive power penalty and improvement in system efficiency

• Enhanced life of capacitors due to controlled switching

• Suitable for highly fluctuating and dynamic loads

• Hospitals and Laboratories

• CNC and Automation Industries

• Data Centers and IT Parks

• Steel Plants, Rolling Mills, and Heavy Machinery

• Commercial Buildings and Malls

• Water Treatment and Pumping Stations

A Hybrid APFC (Automatic Power Factor Correction) Panel is a combination system that integrates both Static Var Generation (SVG / Active Harmonic Filter) or Thyristor-based Real-Time PF Correction (RTPFC) technology with a conventional APFC capacitor bank.

This hybrid configuration intelligently manages both dynamic and steady-state reactive power compensation, ensuring precise power factor correction, harmonic mitigation, and voltage stability under varying load conditions.

• The contactors or thyristor-switched capacitor banks handle base reactive load compensation (slowly varying loads).

• The SVG / AHF module handles fast-changing or fluctuating loads, dynamically injecting or absorbing reactive current in milliseconds.

• Together, they maintain the power factor near unity (0.99–1.00 lag) while reducing harmonics and system losses.

• Dual Technology: Combination of conventional capacitor switching + active compensation (SVG or AHF).

• Dynamic & Real-Time Response: Fast correction (<20 ms) for rapidly varying loads.

• Harmonic Filtering: Active cancellation of current harmonics up to 50th order (when combined with AHF/SVG).

• Automatic Control: Microprocessor-based APFC relay with advanced control logic.

• Energy Efficient: Optimized reactive power management minimizes capacitor wear and extends system life.

• Modular Design: Easy scalability, maintenance, and retrofit compatibility.

• Transient-Free Switching: Thyristor-based operation ensures smooth performance without voltage spikes.

• Communication Ready: RS-485 / Modbus / Ethernet interface for SCADA integration.

• Maintains Unity Power Factor under all load conditions

• Reduces harmonics and improves power quality

• Eliminates transients and inrush currents during capacitor switching

• Decreases transformer & cable heating

• Ensures longer equipment life and energy cost savings

• Provides stable voltage and improved network reliability

• Industrial plants with mixed (static + dynamic) loads

• Commercial complexes and shopping malls

• Hospitals, laboratories, and data centers

• Manufacturing units with drives, welders, and compressors

• Any setup requiring precise PF correction + harmonic mitigation

We have with us a range of APFC panels that are designed in compliance with international quality standards. These are incorporated with advanced microprocessor relay to ensure accurate power factor correction in the installation. Manufactured using best quality material, our range is appreciated for easy installation, safe usage and low maintenance.

Salient features of “Standard” APFC panels are:

Modular concept, expandable design.

Advanced microprocessor relay to ensure accurate power factor correction in the installation.

Best quality switch gear & capacitors.

Aesthetically designed enclosure, vermin & dust protected.

Flush mounted meters to indicate line voltage and current.

Protection against high inrush current at the time of switching.

Easy availability of spares.

Ready to use design confirming to latest standards.

Backed by efficient after-sale service.

We offer Thyristorised APFC panels, which are designed using cutting edge technology. Our range is known for power quality improvement, safe usage and low maintenance cost. Quality tested on various measures, our panels are standard compliant and available at highly competitive prices.

Following are the prominent characteristics of the thyristor PFC modules offered by us:

• Suitable for real time power factor correction
• Reaction time 5 ms
• Easy installation like contactor
• Manual operation possible
• Automatic Switch-off in case of over current & over temperature

We manufacture Thyristorised APFC Panels for power factor correction. The transmission effect created by electro-mechanical switched system is avoided by smooth connection and dis-connection of capacitors to and from the network. The switches are resistant to wear and tear during the continuous process and thus capacitors remain safe. By taking into consideration advanced closed loop and measuring unit, the power factor is controlled very precisely. Reduction of inrush current protects the capacitors from exploding, thus resulting in longer life.