Analysis Of Active, Apparent, And Reactive Power
Active, Apparent, and Reactive Power According to Chipkin (2009), we could think of Real Power as useful power – a measure of how much work is being done. Apparent Power is the power delivered by a power source to a load like a motor. They also stated that you need to supply more power (Apparent Power) to a device than it will do the work (Real Power). Reactive Power is the (vector) difference between Apparent Power and Real Power. Reactive Power cannot be harnessed to do useful work.
Power Quality Disturbances According to Fluke (2016), power disturbances are defined in terms of magnitude and duration. Also, Watson and Miller (2015) stated that it is the manifestation of a disturbance in the current, that flowing through the system and its …show more content…
In addition, they state that in the residential case the peak generation often coincides with when there is low local load. In a distribution system the conductor often changes to reflect the loading it serves (smaller further down the network). This can result in areas where the low voltage network is weak in terms of ability to cope with distribution generation injection of power. Moreover, they also said that the impact of poor power quality on the electrical supply network is often insidious and often its root cause is not correctly identified. Harmonic content has been shown to destroy capacitor banks, over-heat transformers and overload neutral connections. Storm related damage is a major source of poor power quality. Damage due to transients, such as impulsive lightning induced transients, are also well documented. Low steady-state voltage and voltage dips are a major cause of disruption to end users. The loss of life could be due to harmonics or voltage unbalance, both of which increase the heating of the motor insulation, thereby accelerating its degradation and ultimately its
Power Quality Disturbances According to Fluke (2016), power disturbances are defined in terms of magnitude and duration. Also, Watson and Miller (2015) stated that it is the manifestation of a disturbance in the current, that flowing through the system and its …show more content…
In addition, they state that in the residential case the peak generation often coincides with when there is low local load. In a distribution system the conductor often changes to reflect the loading it serves (smaller further down the network). This can result in areas where the low voltage network is weak in terms of ability to cope with distribution generation injection of power. Moreover, they also said that the impact of poor power quality on the electrical supply network is often insidious and often its root cause is not correctly identified. Harmonic content has been shown to destroy capacitor banks, over-heat transformers and overload neutral connections. Storm related damage is a major source of poor power quality. Damage due to transients, such as impulsive lightning induced transients, are also well documented. Low steady-state voltage and voltage dips are a major cause of disruption to end users. The loss of life could be due to harmonics or voltage unbalance, both of which increase the heating of the motor insulation, thereby accelerating its degradation and ultimately its