Increasing demand for electrical energy by utilities has necessitated efficient utilization of av... more Increasing demand for electrical energy by utilities has necessitated efficient utilization of available power. Most of the loads in the industry and domestic applications are inductive in nature causing a lagging power factor. This causes a reduction in the utilization of the power input. For the same power input the utilization can be improved by improving the power factor. Further the presence of harmonics results in poor quality of the power leading to losses. . In present days, solid state electronics control electric motors are frequently used for drive control (speed and torque). This can introduce harmonics in current and voltages. The general opinion among technologists is that improvement in power factor reduces losses in an electrical system. Although this is true in a general way, it is not so in systems which use switched electronic devices that can introduce large amount of harmonics .
Increasing demand for electrical energy by utilities has necessitated efficient utilization of av... more Increasing demand for electrical energy by utilities has necessitated efficient utilization of available power. Most of the loads in the industry and domestic applications are inductive in nature causing a lagging power factor. This causes a reduction in the utilization of the power input. For the same power input the utilization can be improved by improving the power factor. Further the presence of harmonics results in poor quality of the power leading to losses. . In present days, solid state electronics control electric motors are frequently used for drive control (speed and torque). This can introduce harmonics in current and voltages. The general opinion among technologists is that improvement in power factor reduces losses in an electrical system. Although this is true in a general way, it is not so in systems which use switched electronic devices that can introduce large amount of harmonics .
Uploads
Papers by Rajasekar Raju