Active Harmonic Filter Dealer

Active Harmonic Filter Dealers in Mumbai

What is an Active Harmonic Filter?

An Active Harmonic Filter (AHF) is an advanced power electronic device used to eliminate harmonic distortions from electrical systems. It detects and cancels harmonics in real time, ensuring the delivery of clean power to sensitive or critical loads.

Harmonics are generated by nonlinear loads, such as variable frequency drives (VFDs), uninterruptible power supply (UPS) systems, printers, computers, and industrial drives. Without proper filtering, they can cause overheating, malfunctioning of equipment, and increased energy costs.

Purpose of Active Harmonic Filter

The main purpose of an active harmonic filter is to

• ➣ Eliminate harmonic current distortion
• ➣ Improve power factor
• ➣ Stabilize voltage and reduce waveform distortion
• ➣ Comply with IEEE-519 and other international harmonic standards
• ➣ Protect sensitive equipment and ensure reliable operation

Active Harmonic Filter Working Principle

Active Harmonic Filters operate by utilizing advanced power electronics and digital signal processing to monitor the load current in real time. When harmonic distortion is detected:

• ➣ The AHF calculates the exact value and frequency of the unwanted harmonics.
• ➣ It generates a counter-current (of equal magnitude but opposite phase) to cancel out the harmonics.
• ➣ This improves the quality of power reaching the equipment and reduces stress on the power system.

Unlike passive filters, AHFs are dynamic, accurate, and capable of responding to variable loads instantly.

Active Harmonic Filter Specifications

Parameter	Details
Voltage Rating	400V / 415V / Custom
Current Capacity	25A to 600A or as per load
Compensation Capability	Up to the 50th harmonic order
Switching Frequency	10 – 20 kHz (typical)
Response Time	< 1 ms
Control Type	DSP-Based Real-Time Control
Cooling	Air-cooled or forced air-cooling
Compliance	IEEE-519, IEC 61000-4-7

Applications of Active Harmonic Filters

• ➣ Industrial Plants with VFDs and PLCs
• ➣ Commercial Buildings with lifts, HVAC, and UPS
• ➣ Data Centers & Server Rooms
• ➣ Hospitals & Diagnostic Labs
• ➣ Printing Presses & Manufacturing Lines
• ➣ Oil & Gas, Textile, and Cement Industries