Partial Discharge Analyzer (PDA) is used to determine if there is or what is the level of partial discharge activities in the insulation of a power transformer.
Article filed in 'Transformers'
Voltage and current transformation in a power transformer involves a significant quantity of electrical energy losses. Such losses are the losses in the core and copper winding which are dissipated into heat.
Would you wonder who gave the name “transformer” to a transformer?
The “8 deg Celsius rule” (”8 ° C Rule”) is a known “rule of thumb” for estimating the thermal life of insulation of a transformer and thereby the transformer life itself.
If you happen to see a power transformer nameplate, it is very rare (or impossible) to see the value for the resistance and reactance for the equivalent circuit of that transformer. The only valuable information that you can get from the transformer nameplate for this purpose is the percent impedance (%Z) and the voltage rating.
Transformer impedance is one of the important information that is needed for the transmission line modeling for power flow, short circuit and other various power system simulations,
Transformer is composed of two windings (or three windings for three-winding transformer or a single core three phase transformer) whose main purpose is to step-up or step down an AC voltage and AC current. Transformers can be called differently depending on its function, capacity, and construction;
Many of new electrical engineers may thought that the open circuit test to determine the no load loss of a power transformer is always applicable to any kind of transformer. In the case of the high voltage application transformers, this is false. In high voltage application transformers, the number of turns of the high voltage […]
Transformer efficiency is basically the measure of how much is the power transformed from the primary to the secondary of the transformer.
While reading an e-book about transformer protections and relaying, I found this good information for Power Engineering newbies like me.