Cerrudo Services removed a 225 kVA, three phase transformer and replaced with a new 225 KVA three phase transformer. The line side conductors were reused. Secondary conductors from transformer to transfer switch were resized along with conductors from the transfer switch to the breaker. Additional neutral conductors were provided from the transformer to the transfer switch for future generator back feed connection. The 800A breaker line and load side conductors were reconnected. Temporary generator connections were disconnected upon successful replacement of the transformer.