EMIS Three Phase Passive Harmonic Filter Improves Power Quality and Protects Connected Equipment

­Global EMC solutions provider EMIS announces the availability of the TPQH3411 passive harmonic filter designed and manufactured to provide a cost-effective solution for harmonic mitigation in Power Systems by maintaining THID in compliance with the current and voltage requirements of IEEE 519.

Three-Phase Passive Harmonic Filters are used to minimise harmonic distortion, especially in installations with high levels of non-linear loads such as variable frequency drives (VFDs), UPS units and rectifiers.  They function by using passive components resistors, inductors and capacitors in a filter network to suppress unwanted harmonic currents and voltages.

They are typically tuned to specific harmonic orders (e.g.,3rd, 5th, 7th, 11th….), providing low-impedance paths at those frequencies to effectively divert harmonic content. The capacitive elements in these filters offer reactive power compensation, enhancing the system’s power factor.

Key specifications include:

• Operating Voltage - 415 VAC
• Operating Frequency - 50HZ
• Power Rating - 1.1KW to 250KW
• Mounting - Floor/wall

Passive harmonic filters are recognised for their simple and robust design, making them a popular and cost-effective solution for mitigating harmonics in power systems. In addition to assisting with compliance to harmonic distortion limits set by standards such as IEEE 519, the filters also help reduce overheating, mechanical stress, and vibrations in motors and transformers caused by harmonic distortion.

Applications for the EMIS TPQH3411 passive harmonic filter include:

• Variable Frequency Drives (VFDs), induction furnaces, robotics, conveyors.
• High-power pumps, blowers, motor drives
• UPS systems and switch-mode power supplies.
• Crushers, rolling mills, large motors.
• Compressors, offshore drilling systems, pumps
• Elevators, lighting with electronic ballasts
• Inverter-based wind/solar systems
• Cement, Paper, and Steel Industries

EMIS aims to offer an end-to-end solution to meet industry’s ongoing EMI Challenges. With a robust global supply footprint across eight industry segments, EMIS is continuously investing in technology and skills to deliver its promise of efficiency with seamless customer support.

EMI Solutions has been designing and manufacturing EMI filters for more than 40 years and is a global source for efficient EMI and EMC solutions across all industries, applications and the frequency spectrum. Products available include EMI/EMC Components, Feedthrough Components, Power Quality, Military Grade Filters and Surge Protection.

Customers are supported by a very experienced consulting team, a fully equipped Pre-Compliance Lab and a huge safety certified standard product offering of over 2500 part-numbers produced in their own very efficient facility.

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