• Harmonic Distortion on the CHESF Transmission Grid

• Caused by:– TV Receivers)

Harmonic Distortion Measurements - 230kV

Substation - During World Cup Soccer Game

Fortaleza, Brazil, June 12, 1986

Brazil 3 X 0 Ireland

Measurement Point

The World Cup Soccer and Harmonic DistortionPaulo F Ribeiro

Summary of the Measurements5th Harmonic Voltage – 230kV Bus

Match Time

Voltage at the 230kV - Detail of 13.2kV Residential Feeder Disconnection (before the beginning of the match)

Clearly indicates the origin the harmonic source / contribution to the 5th harmonic distortion on the 230kV bus.

Led to Flexibility and Higher Tolerance

7th Harmonic