What is the mean to turn ratio in spot welding machine?
Turn ratio refers to the ratio of the transformer primary coil and a secondary coil welding, the input voltage can be divided by the turns ratio of the transformer secondary welding no-load voltage, the maximum impedance which determines the secondary loop can bear the value is a key index of the welding machine.
See the problem, but not too clear, nothing I can do!
Primary turns ratio of main transformer coil.
