Harmonics problems counter many of the conventional rules of power system design and operation
At one time, almost all electrical loads were linear those that weren't made up such a small portion of the total that they had little effect on electrical system operation. That all changed, however, with the coming of the solid-state electronic revolution. Today, we have an environment rich in nonlinear loads, such as UPS equipment, computers, variable-speed drives, and electronic fluorescent lighting
Advertisement
