Parallel Operation of Transformers using MATLAB Software MATLAB Simulink Lab Experiment

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Parallel operation of Transformers using MATLAB Software , click on below link: • • Parallel Operation of Transformers us... • #matlab #matlabsimulation #transformer #electricalvideos #simulink #matlabsimulation #electrical #simulation #matlabsimulink #parallel #operation #electricalmachines #youtubeshort #electrical #shoaibahmeddayo • (Parallel Operation of Single-Phase Transformers) : • Two transformers are said to be connected in parallel if the primary windings are connected to supply busbars and secondary windings are connected to load busbars. While connecting two or more than two transformers in parallel, it is essential that their terminals of similar polarities are joined to the same busbars. The wrong connections may result in a dead short-circuit and primary transformers may be damaged unless protected by fuses or circuit breakers. • There are three principal reasons for connecting transformers in parallel. • Firstly, if one transformer fails, the continuity of supply can be maintained through other transformers. • Secondly, when the load on the substation becomes more than the capacity of the existing transformers, another transformer can be added in parallel. • Thirdly, any transformer can be taken out of the circuit for repair/routine maintenance without interrupting supply to the consumers. • (Conditions for satisfactory parallel operation): • In order that the transformers work satisfactorily in parallel, the following • conditions should be satisfied: • (i) Transformers should be properly connected with regard to their • polarities. • (ii) The voltage ratings and voltage ratios of the transformers should be the • same. • (iii) The per unit or percentage impedances of the transformers should be • equal. • (iv) The reactance/resistance ratios of the transformers should be the same.

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