High Voltage Side Of A Transformer
In other words a high voltage winding and a low voltage winding that are drawn parallel to each other constitute a single phase transformer or two windings on the same leg of the magnetic core of a three phase.
High voltage side of a transformer. 99 of the power transformers are designed to operate using these tap changers only. A 460 v 2400 v transformer has a series leakage reactance of 37 2 ω as referred to the high voltage side. Equivalent circuit of transformer. Transformers are use to step up and step down the voltage of electricity.
For this tutorial we will define the primary side of the transformer as the side that usually takes power and the secondary as the side that usually delivers power. Two types of tap changer are used which are on load. Calculate the corresponding voltage and power factor as measured at the high voltage terminals. In a step up transformer the voltage coming out is higher than the voltage going in so the output is the high side and.
Variation of alternator field current. This type of taping is used in step up transformer where low voltage winding is in primary side and high voltage winding is in secondary side. Transformer taps are preferred on high voltage side why. Figure shows the tap changer circuit on secondary side with tap interval of 2 5.
A single phase voltage transformer basically consists of two electrical coils of wire one called the primary winding and another called the secondary winding. Equivalent impedance of transformer is essential to be calculated because the electrical power transformer is an electrical power system equipment for estimating different parameters of the electrical power system which may be required to calculate the total internal impedance of an electrical power transformer viewing from primary side or secondary side as. At the same time these tap changers are always preferred to operate in high voltage side. Transformer taps are used to changing the transformer voltage level when it is connected to the load circuits.
The output voltage of a high voltage transformer is regulated by changing the input voltage to the primary side. This variation of input voltage to the primary side can be done by. When the transformer windings are drawn a particular high voltage winding corresponds to the low voltage winding drawn parallel to it.