Harmonic Filter for Power Systems
Active & Passive Harmonic Solutions
Understanding Harmonics and Their Impact on Power Systems
Protect Your Power System with Veritas Control & REVCON®
In an ideal world, electricity would flow in a perfectly smooth and consistent pattern. However, devices like variable frequency drives, LED lights, and industrial equipment often disrupt this smooth flow, causing unwanted fluctuations known as harmonic distortion. This is where harmonic filters and filtering systems play a crucial role in maintaining power quality.

Harmonic distortion occurs when equipment draws power irregularly, distorting the 50Hz waveform and introducing additional frequencies. These unwanted frequencies can lead to issues such as:
- Transformer overload
- Capacitor bank (PFC) overload
- Increased energy costs
- Decreased equipment lifetime
- Equipment prone to failure
- Vibration Damage to Rotating Machinery
By using harmonic distortion filters and harmonic suppression systems, businesses can mitigate these effects and ensure their power systems run smoothly.

What Is Total Harmonic Distortion (THD)?
Total Harmonic Distortion (THD) measures the total harmonic content in an electrical signal, expressed as a percentage. High THD levels, often linked to a lack of harmonic mitigation, can cause overheating, energy inefficiencies, and equipment failures.
The formula for THD is:
THD (%) = (Sum of the power of all harmonic frequencies) / (Power of the fundamental frequency)
Industry standards like IEEE 519-2022 set acceptable THD limits to protect systems and maintain operational efficiency. REVCON® harmonic filters are designed to meet or exceed these standards, ensuring THDi control and reliable performance for electrical installations.
IEEE 519 - 2022: Industry Standard for Harmonic Control
The IEEE 519-2014 standard provides guidelines for controlling harmonic distortion in electrical systems. It sets the maximum allowable levels of harmonic current and voltage. distortion to ensure that electrical systems operate safely and efficiently. Compliance with IEEE 519-2022 helps to ensure reliable power quality, prevent equipment damage, and meet regulatory requirements.
Current Harmonic Limits
The standard specifies maximum harmonic current limits based on the size and type of equipment or system. It ensures that harmonic distortion is kept within acceptable levels, which protects sensitive equipment from excessive harmonic currents.
Voltage Distortion Limits
The IEEE 519-2022 also outlines limits for voltage distortion, ensuring the power supplied to consumers is stable and within safe operational levels.
REVCON® Harmonic Filter meet or exceed IEEE 519-2022 standards, ensuring that your system is compliant and that your equipment is protected from harmful harmonic distortion. By adhering to the guidelines in IEEE 519-2022, businesses can:
Ensure System Reliability: Prevent equipment damage and reduce system downtime. Optimize Energy Efficiency: By controlling harmonic currents, the system operates more efficiently, lowering energy consumption and costs.


How Do Harmonic Filters Works?
Harmonic filter work by reducing or eliminating harmonic frequencies in your power system, allowing only the clean, sinusoidal current to flow. There are several types of harmonic filter available, and the right one depends on the nature of the harmonic distortion in your system.
Passive Harmonic Filter
Passive Harmonic Filters are cost-effective, reliable, and suitable for systems with stable and predictable harmonic loads.
Active Harmonic Filter
Passive Harmonic Filters are ideal for systems with dynamic or fluctuating loads, providing real-time compensation and effective harmonic mitigation.
Hybrid Solution (Passive + Active)
Combining the benefits of both passive and active technologies, hybrid harmonic filters provide superior performance for complex systems with both steady and fluctuating harmonic loads.
Benefits of Harmonic Filters
Harmonic filters are critical to maintaining high-quality power systems, and their benefits extend beyond just protecting equipment. Here are the key reasons why harmonic filter are an essential investment for your business:
Protect Equipment
Prevent equipment from overheating and suffering premature failure, including transformers, motors, and capacitors.
Reduce Energy Costs
By minimizing energy losses due to harmonic distortion, harmonic filter optimize the efficiency of your power system. This leads to lower electricity bills and reduced operational costs.
Extend Equipment Lifespan
Reducing harmonic stress on your equipment extends the lifespan of critical assets, avoiding costly repairs or replacements.
Improve System Reliability
Contribute to system stability, reducing downtime, minimizing failure risks, and improving overall operational efficiency.
Enhance Power Factor
Improve the system’s power factor, which can result in further energy savings and lower utility penalties.
Why Choose Veritas Control & REVCON® for Harmonic Filters?
At Veritas Control, we are the exclusive distributor of REVCON® harmonic filter in Singapore. With years of expertise in power quality solutions, we are dedicated to providing businesses with the tools to optimize their electrical systems and improve energy efficiency.
Expert Consultation for Power Systems
Our experienced team will assess your unique needs and recommend the best harmonic filtering solution for your system.
Trusted REVCON® Partnership for Harmonic Filters
As the authorized distributor of REVCON®, we offer the most reliable, cutting-edge harmonic filter available that meet IEEE 519 – 2022 standards.
Tailored Solutions
We provide customized solutions to fit the specific requirements of your power system.
Our solutions are perfect for applications like Motor Control Centers (MCC), Static Var Generators (SVG), and harmonic distortion filters for generators. Let Veritas Control help you optimize your system and improve power quality.
Get in Touch -Start Protecting Your Equipment and Saving Energy Today!
Are you ready to reduce harmonic distortion, protect your equipment, and improve your energy efficiency? Veritas Control is here to help. Whether you are looking to install passive, active, or hybrid harmonic filter, we offer tailored solutions to suit your needs.