Answer / maurilio

If two or more transformer are connected in parallel the
output voltage will be the one on the transformer plate
as an example if the trafo is a 100 V input and 10 volts
output the output voltage will be 10 volts
If we connect two trafo like the one in the example in
series
we divide the 100 volts input on two trafo so the
output voltage will be only 5 volts

Answer / debasis paul

Transformer always done in parallel connection because when two or more transformer connected in parallel it is work depends up on the impedance. so that will not possible for series connection.

When two or more transformer are connected in parallel then increase load current but load voltage to same.

Answer / karna

Transformer is a voltage source, So voltage source always
connected in Parallel, it not possible to connect in
series ...

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