In electrical power distribution system, generally known as technical loss of one of them shrinkage power. Power shrinkage due to an unbalanced load against the distribution Transformer 3 phase. This can happen due to different customer needs and unbalanced connectivity in the R, S and T phases when new pairs are performed and added power to the customer. The load imbalance on the distribution transformer causes the current to flow into the neutral conductive resulting in an excess heat that causes power loss and current flows to the ground. In the 3 Phase 4 wire system applied in Central Java and D.I. Yogyakarta, the neutral current is approaching 0 considered good. Distribution Transformer Load Balancing is a solution for overcoming unbalanced loads. The result of the transformer load balancing on 2 units of the distribution transformer obtained average emphasis loss – the power loss to the total power that is stretched to the customer is 1,610.11 watts for the 1503115 transformer and 250.27 Watt for the transformer 1411671019. Cost savings on financial losses after load balancing of Rp 6.381.864/year for transformer 1503115 and Rp 921.132/year for transformer 1411671019.