Harmonics can lead to serious problems

• Reduced energy efficiency when harmonics are in the network

• Overheating of cables, motors and transformers

• Damage to sensitive equipment

• Tripping of circuit breakers

• Blowing of fuses

• Premature ageing of the installation

• Capacitor overloading and failures

• High current in neutral conductors

• Excitation of network resonance

• No connection permit from the utility if harmonic levels are too high