Harmonics has effect on Capacitor Banks in various ways
1. DIELECTRIC LOSS: Harmonic voltage increases the dielectric loss in capacitors.
2. THERMAL STRESS: Harmonic voltage increases the stress on capacitor bank and the system connected to the bank.
3. RESONANCE: Harmonics cause series and parallel resonances between the capacitors and the rest of the system. This results in over voltage and high currents, which increase the losses and overheating of capacitors, and often leading to their destruction.
4. REACTIVE POWER: Change of harmonic contents sometimes increases reactive power over permissible manufacturer tolerances.
5. POWER FACTOR CORRECTION CAPACITORS: Presence of harmonics causes malfunction of the operation of power factor correction capacitors.
1. DIELECTRIC LOSS: Harmonic voltage increases the dielectric loss in capacitors.
2. THERMAL STRESS: Harmonic voltage increases the stress on capacitor bank and the system connected to the bank.
3. RESONANCE: Harmonics cause series and parallel resonances between the capacitors and the rest of the system. This results in over voltage and high currents, which increase the losses and overheating of capacitors, and often leading to their destruction.
4. REACTIVE POWER: Change of harmonic contents sometimes increases reactive power over permissible manufacturer tolerances.
5. POWER FACTOR CORRECTION CAPACITORS: Presence of harmonics causes malfunction of the operation of power factor correction capacitors.