APFC Panels

HT APFC (Automatic Power Factor Correction) Panels – Domain Powers

In high-tension (HT) and medium-voltage (MV) power distribution systems, poor power factor results in increased energy losses, heavy utility penalties, and reduced system efficiency. To address these challenges, Domain Powers offers HT APFC Panels engineered to provide automatic reactive power compensation across 3.3kV to 33kV networks. These High Voltage APFC Panels intelligently regulate capacitor banks based on real-time load conditions, ensuring consistent power factor improvement without manual intervention.

Our HT Automatic Power Factor Correction Panels enhance overall power quality, reduce transformer and cable losses, and optimize energy usage, helping industries save significantly on electricity costs. Built with high-grade switchgear and protection devices, these panels deliver long service life, low maintenance, and high reliability even in harsh environments.

1. Available in 3.3kV, 6.6kV, 11kV, 22kV, and 33kV APFC panel configurations.

2. Advanced automatic power factor controller with intelligent switching logic.

3. Multiple incomer options – VCB (Vacuum Circuit Breaker), Load Break Switch (LBS), and Off-load Isolator.

4. Equipped with Residual Voltage Transformer (RVT) for safe capacitor discharge.

5. Integrated with Neutral Displacement Relay (NDR), over-voltage, under-voltage, and unbalance protection relays.

6. Capacitor bank protection using high-quality HRC fuses.

7. Optional detuned reactor banks (air-core or iron-core) for effective harmonic suppression.

8. Compact, modular design for easy installation and scalability.

9. SCADA / remote monitoring integration available for smart power management.

10. Designed and tested as per IS/IEC international standards for high-voltage switchgear.

• Heavy industries – steel, cement, oil & gas, petrochemicals, mining

• Manufacturing facilities – textile, pharma, engineering plants

• Utilities and distribution companies – grid and substation level power factor management

• Infrastructure projects – airports, metro rail, data centers, smart cities

• Renewable energy projects – solar, wind, and hybrid power plants

Domain Powers HT APFC Panels are the most reliable solution for power factor correction in high-voltage networks, ensuring compliance with electricity board norms, improved system efficiency, and reduced operational costs for industrial and utility sectors.

Industries today face increasing penalties and equipment inefficiencies due to poor power factor and rapid load fluctuations. Traditional contactor-based systems struggle to react swiftly, leading to voltage dips, harmonic issues, and energy losses. Domain Powers addresses this challenge with our Thyristor-Based APFC Panels – designed for dynamic power factor correction with near-instant response time.

These panels are ideal for industries with rapidly changing loads, such as welding plants, textile machinery, or induction heating systems. Our system offers seamless, silent, and spark-free switching of capacitors, ensuring consistent power quality and prolonged equipment life. Built with precision engineering and reliable control logic, Domain Powers guarantees high performance and durability, setting a new benchmark in intelligent power factor correction.

Features

1.Fast switching response time suitable for dynamic load environments.

2.Fully electronic, contactless capacitor switching for long system life.

3.Eliminates inrush current and voltage transients during capacitor insertion.

4.Microcontroller-based intelligent relay system for accurate power factor correction.

5.Suitable for harmonic-prone installations with detuned reactor compatibility.

6.Operates silently with zero mechanical wear and tear.

7.Real-time monitoring with digital power analyzers or multifunction meters.

8.Compact design with optimized panel layout for easy maintenance.

9.Highly customizable as per load profile and kVAR requirements.

10.Manufactured with premium quality components under strict quality control.

Hybrid APFC Panels from Domain Powers combine Static VAR Generators (SVG) with thyristor-switched capacitor banks, offering a next-generation solution for dynamic power factor correction and harmonic compensation. This advanced system is specifically designed for industrial and commercial facilities facing challenges like fluctuating reactive power demand, high harmonic distortion, and rapid load changes.

The integration of SVG and thyristor technologies ensures precise and fast compensation of reactive power while actively eliminating harmonics from the system. This results in improved power quality, higher energy efficiency, and compliance with IEEE 519 and IEC 61000 standards.

Domain Powers’ Hybrid APFC Panels are built using high-end control logic, robust construction, and industry-leading components, making them suitable for critical applications in sectors like steel, cement, textile, pharmaceutical, data centers, and EV charging infrastructure.

Features 

1.Dual Compensation System: Combines SVG for harmonic mitigation and thyristor-controlled capacitors for rapid reactive power correction.

2.Ultra-Fast Response Time: <20 milliseconds switching for dynamic load variation handling.

3.Active Harmonic Filtering: Effectively mitigates harmonics up to the 50th order.

4.Load Balancing: Offers phase-wise current balancing for improved system stability.

5.High Power Quality: Maintains power factor close to unity and reduces voltage fluctuations.

6.Modular Design: Scalable architecture to meet future expansion and capacity enhancement.

7.Real-Time Monitoring: Advanced controller with touchscreen HMI, cloud-based access (optional), and event logging.

8.Compliance with Global Standards: Designed and tested as per IEEE 519, IEC 61000, and IS 13529.

9.Low Maintenance: No mechanical switching parts, leading to enhanced panel life and reliability.

10.Custom-Built Solutions: Available in multiple kVAR ratings and configurations, tailored for site-specific requirements.

Product Description

Smart APFC (Automatic Power Factor Correction) Panels with GSM/GPRS communication are advanced systems designed to monitor and improve power factor automatically while enabling remote access and data monitoring. These panels are ideal for industries, commercial buildings, and facilities where real-time monitoring and quick correction of power factor are critical for energy efficiency and regulatory compliance.

The integrated GSM/GPRS module allows users to remotely access the panel data, monitor performance, receive alerts, and take preventive actions, thus reducing energy losses and improving system reliability.

1.Advanced microcontroller-based APFC relay with multi-stage switching

2.Integrated GSM/GPRS modem for remote monitoring and alerts

3.Real-time SMS/Email notifications for faults and performance status

4.Automatic correction of lagging power factor using capacitor bank stages

5.Compatibility with 3-phase 3-wire and 3-phase 4-wire systems

6.Individual stage protection with MCBs/fuses

7.Inbuilt digital multifunction meter for real-time voltage, current, kVAR, and PF monitoring

8.Logging and storage of historical data for performance analysis

9.High-quality contactors or thyristor switching (as per application)

10.Overvoltage, undervoltage, and harmonic protection

11.Compact and robust powder-coated MS enclosure

12.Suitable for LT panels in commercial, industrial, and institutional applications

13.Customizable capacitor bank ratings based on load requirements

14.Maintenance-friendly modular design

15.Integration support with SCADA or BMS systems