Electrical Harmonics driving you mad ?

Electrical harmonics are voltage or current distortions that can occur in an electrical system. They are caused by non-sinusoidal waveforms, which are waveforms that do not have a smooth, regular shape. Instead, they have a more jagged or distorted appearance.

On ships, electrical harmonics can be caused by a variety of factors, including the use of non-linear loads such as variable frequency drives, uninterruptible power supplies, and fluorescent lighting. These types of loads can cause harmonic currents to flow in the electrical system, which can result in voltage distortions and power quality issues.

Harmonics can cause a number of problems on ships, including:

• Increased power loss: Harmonics can cause the power system to become less efficient, resulting in increased power loss and higher energy costs.

• Overheating of equipment: Harmonics can cause electrical equipment to overheat, leading to reduced lifespan and possible failure.

• Interference with sensitive electronic equipment: Harmonics can cause interference with sensitive electronic equipment, such as Underwater lights, GPS receivers, Cabin LEDs and radar systems.

To mitigate the effects of harmonics on ships, it is important to identify the sources of harmonics and take steps to reduce their impact. This can include installing filters, using harmonic-mitigating transformers, and properly sizing electrical equipment. It is also important to regularly monitor and maintain the electrical system to ensure that it is operating efficiently and effectively.