Transformers

Thread Starter

lolo

Joined Apr 25, 2008
4
Can you help me please?

Q1)
Three single-phase transformers rated at 250kVA, 7200V/600V, 60Hz are connected in wye-delta on a 12470V, 3-phase line. If the load is 450kVA, calculate the following currents:
a) In the incoming and outgoing transmission lines.
b) In the primary and secondary windings.


Q2)
Three single phase transformers rated 100kVA, 13.2kV/3.3kV are connected in wye-delta on a 3-phase 15kV line:
a) What is the maximum load that can be connected to the transformer bank?
b) what is the outgoing line voltage?
 
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