The main task of the ground transformer is to create a neutral point for the side by connecting the triangle of the main transformers. The phases of these transformers are connected in a zigzag manner and can also have an auxiliary coil for internal power supply of the substation.If needed, the voltage adjustment switch in the no-load mode can also be considered in the main windings. The most important factors to consider in the design of these transformers are zero sequence impedance and short circuit tolerance, both of which are carefully considered.
Available brands:IRAN TRANSFO-ABB- TAMINI ITALY- MR GERMANY – MESSKO GERMANY