Guided scenario35 min· Path total 1 h 5 min

Waveforms and harmonics

ORIENT

What this module is for

Build a distorted waveform from harmonic content and interpret THD.

EXPERIMENT

Compose harmonic content and watch the resulting waveform and THD.

CHECK

Triplen harmonics (3rd, 9th, ...) in a wye system are notable because they:

Cancel in the neutralAdd arithmetically in the neutral conductorOnly affect delta windingsReduce transformer heating

APPLY

Name a load type in a building you know that is a likely harmonic source.

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