• Harmonic Mitigating Transformer, 500 KVA, 3 PH, 60 Hz, P/N MG-166
• Primary : 575 VAC,  Delta
• Primary taps: 2 @ 2.5% FCAN, 2 @ 2.5% FCBN
• Secondary: 480 VAC L-L or 277 VAC L-N, Wye with Zig Zag
• Aluminum windings
• Temperature rise: 150ºC
• K factor: K-1
• Approval: UL / CSA Listed
• Outdoor Enclosure: 80.25″H x 64.00″W x 50.00″D
• Estimated Weight: 2800 lbs.

The schematic diagram of the transformer is shown below:

In an ideal world voltage and current waveforms are perfectly sinusoidal. However, because of the increased popularity of electronic and other non-linear loads, these waveforms are usually distorted. This deviation from a perfect sine wave can be represented by harmonics—sinusoidal components having a frequency that is an integral multiple of the fundamental frequency (see Figure below). Thus, a pure voltage or current sine wave has no distortion and no harmonics, and a non-sinusoidal wave has distortion and harmonics. To quantify the distortion, the term total harmonic distortion (THD) is used. The term expresses the distortion as a percentage of the fundamental (pure sine) of voltage and current waveforms.

We eliminate the Orange waveform by adding Zig Zag winding

• Green – Fundamental @ 60 Hz

• Orange – 3rd Harmonic @ (3 X 60 = 180 Hz.)

• Red – Actual distorted waveform – Fundamental + 3rd Harmonic

The details of the enclosure are shown below:

To discuss your specific application, please call our number at (714) 624-4740, or send us an email at quote@lcmagnetics.com.