HTT (Harmonic Treating Transformer)

The HTT (Harmonic Treating Transformer) product line is one of the most popular amongst engineers. The HTT is ideally used in harmonic rich environments where most of the load on the electrical system is of the nonlinear nature produced by computers, monitors, printers, copiers, scanners, and electronic ballasts.

The HTT is a three phase isolation transformer capable of handling load profiles of up to K30 without derating. It mitigates the 3rd, 9th, and all other third order harmonics in its secondary windings through flux cancellation technology and the 5th, 7th, 11th, and 13th harmonics are cancelled through phase shifting at the system level.

The HTT is a high efficiency transformer that exceeds the efficiency levels required by NEMA TP-1, CSA 802.2-12, and US DOE CSL-3 standards. The efficiency of the HTT is also third party verified by Intertek.


This unit has front access to all its connection points and is capable of accepting a wide variety of extra options.

The finished product is shipped in a shrink-wrapped, grey NEMA 3R enclosure with corner protectors on our unique SmartSkid for safe and effortless transportation and installation.