Voltage Regulation in Urban Distribution Electrical Networks

The use of OLTC devices for supply transformers and OCTC devices on a TP is analyzed. Based on calculations performed, it is proposed to use a transformer with automatic control of secondary voltage by switching regulating windings that are located partially on the primary and partially on additional cores. The proposed model of the transformer can be considered as an alternative to transformers with OCTC device voltage 6 – 10/0.4 kV and power up to 1000 kV · A.