Learn to read a transformer wiring schematic without schooling by studying what the different symbols in the schematic mean. It is also helpful to compare a schematic to an actual transformer to learn what the different components of the diagram look like in real life.
The first step to learning how to read a transformer wiring schematic is to understand how the schematic is arranged. Most schematics are two-dimensional, so in order to display wiring configurations that sometimes move into three dimensions, specific shortcuts and images are used that indicate to the reader the order and layering of wires and other components.
It is also important to learn what different symbols on the schematic represent to understand the information being conveyed. For example, many transformer schematics include a symbol that is either a series of diagonal lines resembling the letter "W" repeated between two horizontal lines or an outline of a rectangle between two horizontal lines to represent a resistor. A resistor is an essential component of any electronic system and wiring configuration that controls the flow of electrons through a circuit. Various symbols are used to represent different types of resistors. Comparing the symbols used in a schematic to the actual component helps solidify the memory of what that symbol represents.