Harmonic Restraining in Differential Protection
The differential relay is used for the protection of the transformer, alternator, and large-rating HT motor. The differential protection scheme is also known as zone
Single Phase Transformer and Application of Single Phase Transformer
The transformer transforms voltage from one level to another without changing the power and frequency. The transformer is static electrical equipment, and it does not
Effects of Harmonics on Capacitors | Interaction of Harmonics with Capacitors
The adverse Effects of Harmonics on Capacitors comprise series and parallel resonance, heating, overloading, and increased dielectric loss. The harmonics also cause a severe problem of
Ideal Transformer-Properties, Phasor Diagram, Working
What is an Ideal Transformer? An ideal transformer is free from all losses. It has zero copper and iron loss and zero leakage flux, and
Effects of Harmonics on Power Cables
Power cables carry power from the supply source to the load point. They have DC resistance, which depends on their size. When current flows through
Shell Type Transformer- Construction, Working & Applications
The HV and LV winding is wound around the central limb. The central limb carries the entire flux (Ф ). The flux (Ф ) divides into two equal part and thus each side limbs carries the half (Ф/2 ) of the total flux(Ф ). As a result, cross section area of the central limb is two times of the side limbs area.The arrangement of the winding around the central limb is as given below.
Transformer Ratings- Formulas and Solved Problems
The maximum current a transformer can deliver to loads at the rated voltage is known as a transformer rating. It is expressed in VA, kVA,
Voltage Regulation of Transformer-Definition, Formula
What is the Voltage Regulation of a Transformer? Voltage regulation of the transformer is defined as the percentage change in the transformer’s secondary voltage from
Open Delta Connection of Transformer
When two single-phase transformer is connected in an open delta connection, the arrangement can provide a three-phase supply to the load. The open delta connection
Core Type Transformer – Construction & Working
The transformer can be categorized into core type and the shell type.In a core type transformer the winding encircles the core whereas in a shell type transformer the core encircles the winding. The winding encircles the core of a transformer. The Single phase transformer has two limbs and three phase transformer has three limbs.