The newest addition to Schaffner EMC's ECOsine® family of Passive Harmonic Filters is the FN3415 for 60 Hz, 480 or 600 VAC applications. Available in various NEMA enclosures, they are easily installed and commissioned, providing immediate benefit to the electrical system by limiting the amplitude of the current harmonics, reducing losses, and allowing equipment to operate more efficiently with a longer service life. Proven in industrial settings, Schaffner passive harmonic filters work with most power electronics with front end six-pulse rectifiers including non-linear loads such as motor drives/VFDs, factory automation equipment, fans, pumps, chillers and other HVAC equipment, DC fast chargers, mission critical systems/datacenters, water/wastewater processing equipment, oil and gas drilling and more.
Designed to operate at 99% efficiency and installed at the typical three phase voltage of 480 VAC (+/- 10%), or 600 VAC (+/- 10%) at 60 Hz (+/- 1 Hz), these proven products reduce harmonics, to meet IEEE-519 (2014). TDD and THDI performance at full, light and no-load conditions is less than or equal to 5%, while THDv ratings are less than or equal to 3%. Schaffner also offers more basic designs for installations with less critical harmonic mitigation needs.
NEMA 1 and NEMA 3R enclosures, wall-mounted or free-standing, are standard. Other ratings are available. All FN3415 models are UL and cUL listed. They are ideal for new installations and retrofits.
Harmonics – A Silent But Deadly Problem
Harmonics are generated by nonlinear components in electrical systems, which distort the sine wave. Increasing usage of power electronics causes a corresponding increase in voltage distortion, or harmonics. Common electrical components like motors, pumps, fans, automation equipment, DC fast chargers, equipment with front-end six-pulse rectifiers, and more, all introduce harmonics into the electrical system. When harmonics are present they can manifest themselves with short-term and long-term consequences. High harmonic distortion can cause failures or malfunctions of electrical devices. Harmonics also cause a temperature rise in the electrical network and in equipment, resulting in losses and shorter service life. Passive harmonic filter, like the ECOsine® Passive, when tuned to the offending harmonic order, corrects the sine wave, before the harmonics can cause any damage to the electrical system or equipment.
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