Active Harmonic Filter For UPS System: 5 Incredible Benefits

Gravity Power Solution’s Comprehensive Guide to Active Harmonic Filters

Active Harmonic Filters for UPS Systems : A Deep Dive into Electrical Harmonics

Active Harmonic Filter For UPS System In the vast landscape of electrical devices, some exhibit nonlinear operating characteristics. This means that even if the voltage applied is sinusoidal, the current they draw isn’t. Such devices, when integrated into power distribution circuits, produce nonlinear currents leading to voltage distortions. These are commonly termed harmonic currents and voltages. With the modern-day rise of electronic switching devices, there’s been a significant surge in harmonic disturbances in electrical distribution systems. If these harmonics are overlooked, they can lead to system issues, complaints, reduced equipment lifespan, and decreased efficiency using A active Harmonic Filter For UPS System

Active Harmonic Filter For Ups System

Working Principle of Active Harmonic Filters ! Active Harmonic Filter For UPS System

The Active Harmonic Filter working principle revolves around its ability to inject harmonic components to counteract the unwanted harmonics in a power system. By doing so, it effectively cancels out the undesired harmonics, ensuring a cleaner power supply.

Working Principle of Active Harmonic Filters

Active Harmonic Filter For UPS System Harmonic currents and voltages can have a range of adverse impacts on both the power system and the devices connected to it. Some of these include:

  • Electronic equipment malfunctioning
  • Overheating in transformers, motors, and neutral conductors
  • Capacitor failures
  • Excessive heating in machinery
  • And more…

However, with the benefits of Active Harmonic Filters, businesses can experience:

    • Enhanced power quality
    • Prolonged equipment lifespan
    • Reduced energy costs
    • Improved system reliability

Harmonic Sources and Active Harmonic Filter Calculation

Active Harmonic Filter Calculation

Some common sources of harmonic currents include LED and CFL lights, Switch Mode Power Supply units, Variable frequency drives, UPS, Arc furnaces, and Battery chargers. The Active Harmonic Filter calculation involves assessing the harmonic content based on the type of loads and their location in the power distribution system.

Active Harmonic Filter Manufacturers in India ! Active Harmonic Filter For UPS System

Gravity Power Solution stands out among the top Active Harmonic Filter manufacturers in India. With a commitment to quality, innovation, and customer satisfaction, we cater to a diverse clientele across the country.

Applications of Active Harmonic Filters

AHF is a versatile tool that can mitigate harmonics, reduce voltage fluctuations related to processes, and enhance the operating life and capacity of equipment. It can also be integrated into a power factor correction and harmonic filtering system. The Active Harmonic Filter formula is designed to ensure optimal performance and efficiency.

Our solutions are tailored for: Active Harmonic Filter For UPS System


  • Businesses with Critical Operations: Ensuring seamless operations without the interference of harmonics.
  • BPO and Call Centres: For uninterrupted communication lines.
  • IT Administrators and Facility Managers: Ensuring equipment longevity and reduced maintenance costs.
  • Retailers and Small-scale Dealers: For smooth business operations.
  • Construction and Real Estate Developers: To ensure machinery and equipment run efficiently.
  • Government and Public Sector Units: For reliable public service operations.
  • Educational Institutions: Schools, colleges, and universities that require power backup solutions for their campuses.

Why Gravity Power Solution Recommends Active Harmonic Filters for UPS Systems

Gravity Power Solution, our primary goal is to ensure that businesses and institutions have access to the most reliable and efficient power solutions. Here’s why we highly recommend Active Harmonic Filters for UPS Systems:

  1. Enhanced Power Quality: Active Harmonic Filters improve the quality of power by eliminating unwanted harmonics, ensuring that devices and machinery operate at their optimal efficiency.

  2. Prolonged Equipment Lifespan: By reducing the harmonic disturbances in the electrical distribution systems, the lifespan of equipment connected to it, such as motors, transformers, and other machinery, is significantly extended.

  3. Cost-Efficiency: With improved power quality and reduced harmonic disturbances, there’s a notable decrease in energy wastage. This translates to reduced energy bills, offering businesses significant cost savings in the long run.

  4. Reduced Maintenance Costs: Equipment that operates without the interference of harmonics tends to require less maintenance, further reducing operational costs for businesses.

  5. Safety: Harmonic distortions can lead to overheating and potential failures in electrical systems. By mitigating these harmonics, Active Harmonic Filters enhance the safety of the electrical infrastructure.

  6. Versatility: Active Harmonic Filters are versatile and can be integrated into various power systems, making them suitable for a wide range of applications, from industrial setups to educational institutions.

  7. Compliance with Standards: Many regions have set standards and regulations concerning the allowable levels of harmonics in power systems. Using Active Harmonic Filters ensures that businesses remain compliant with these standards, avoiding potential penalties.

  8. Support & Expertise: Gravity Power Solution, we don’t just provide products; we offer comprehensive solutions. Our team of experts is always available to assist with installation, and maintenance, and to provide insights on optimizing power systems.


By incorporating Active Harmonic Filters from leading manufacturers like Gravity Power Solution, businesses across India can benefit from reduced harmonic distortion, improved power factor, reduced losses, and enhanced equipment lifespan.

Take the Next Step for a Harmonic-Free Environment !

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FAQs on Active Harmonic Filter For UPS System

Q: What is an active harmonic filter?

A: An active harmonic filter is an advanced device designed to detect and eliminate unwanted harmonic currents in an electrical system. It works by injecting compensating currents that effectively cancel out the undesired harmonics, ensuring a cleaner and more efficient power supply.

Q: How do you choose an active harmonic filter?

A: Choosing an active harmonic filter involves several considerations:

  1. Load Analysis: Understand the type and magnitude of harmonics present in your system.
  2. System Voltage and Frequency: Ensure the filter is compatible with your system’s voltage and frequency.
  3. Filter Rating: The filter should be rated appropriately based on the total harmonic distortion (THD) in the system.
  4. Future Expansion: Consider any future expansions or additions to your electrical system.
  5. Manufacturer Reputation: Opt for filters from reputable manufacturers with a track record of reliability and performance.

Q: Where are active harmonic filters used?

A: Active harmonic filters are used in various sectors and applications, including industrial plants, data centers, commercial buildings, hospitals, and any facility with electronic equipment like VFDs, UPS systems, and computers that can introduce harmonics into the electrical system.

Q: What are the two types of harmonic filters?

A: The two primary types of harmonic filters are:

  1. Active Harmonic Filters: These detect and dynamically counteract harmonics in real time by injecting compensating currents.
  2. Passive Harmonic Filters: These are fixed circuits consisting of capacitors and inductors designed to eliminate specific harmonic frequencies.

Q: What are the 4 main filter types?

A: The four main filter types, based on their frequency response, are:

  1. Low-Pass Filters: Allow frequencies below a certain cutoff frequency to pass through.
  2. High-Pass Filters: Allow frequencies above a certain cutoff frequency to pass through.
  3. Band-Pass Filters: Allow frequencies within a specific range to pass through.
  4. Band-Stop (or Notch) Filters: Block frequencies within a specific range.

Q: Why are harmonic filters used in VFD?

A: Harmonic filters are used with Variable Frequency Drives (VFDs) to reduce the harmonic distortion introduced by the VFDs into the power system. VFDs, by their nature, generate harmonics due to their switching operations. These harmonics can lead to issues like overheating of equipment, reduced efficiency, and power quality problems. Harmonic filters ensure that the VFD operates efficiently without adversely affecting the overall power system.

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