Effect of Harmonics on Power Factor
This article describes the effect of harmonics on the power factor. The nonlinear loads cause harmonics in the electrical power system and adversely affect the
Electrical
How does Soil Resistivity Effect the Earth Resistance?
The soil resistivity directly affects the earth resistance. The earth resistance increase with an increase in the soil resistivity. In this article, we will discuss
Difference Between Valence Band and Conduction Band
This article describes the difference between the valence band and the conduction band. The valance band and conduction band represent the energy levels of the
df/dt Relay – Rate of Change of Frequency(ROCOF) Relay
df/dt Relay – Rate of Change of Frequency(ROCOF) Relay is used for load shedding when there is a sudden loss of generating capacity. In this
What is a Transformer? Definition & Meaning
A transformer is a static piece of equipment that does not have any moving parts in it. The transformer transforms higher voltage to lower voltage
Difference between Power Transformer & Distribution Transformer
This article describes the difference between a power transformer & distribution transformer. Power transformers and Distribution transformers are widely used in power systems for step-up and
Why Single Phase Induction Motor is not Self-Starting?
The main reason why a single-phase induction motor is not self-starting is that it produces a revolving magnetic field and not a rotating magnetic field.
Troubleshooting of Star-Delta Starter
This article describes the troubleshooting of the star-delta starter. Star Delta starters are widely used in electrical installation for starting large-rating squirrel cage induction motors
Why is DC voltage applied in an insulation resistance test?
This article describes why DC voltage is applied in an insulation resistance test. Insulation acts as a capacitor and If we apply DC voltage then
Total Harmonic Distortion(THD) & Its Measurement
Total harmonic distortion (THD) shows how much of a voltage or current distortion is due to harmonics in the signal. If the sinusoidal voltage is