Is it possible to connect two different transformers in parallel

Electrical
1

Can we connect two different transformers in parallel with the same voltage at their load and secondary side

2

You can only connect transformers in parallel with the

Same voltage rating

Same current ratings

Same frequency

Same Polarity

same coefficient.

Same impedance

Same vector group

3

Yes, two different transformers can be connected in parallel, but matching the secondary voltage alone is not sufficient.

They should have compatible:

  • Same voltage ratio and polarity
  • Same phase sequence and vector group
  • Similar percentage impedance and X/R ratio
  • Same frequency
  • Compatible kVA ratings

Otherwise, circulating currents, unequal load sharing or transformer damage can occur.