On-load tap switch gear transcoder for transformer

The utility model discloses an on-load tap switch gear transcoder for a transformer, wherein, the A1 end of the coil group A of a relay is connected with gear input ends W1-W10, the moving point 1 of W1-W7 group A of the relay and the A2 end of the coil are connected with a cathode, the A1 end of the coil group B of the relay is connected with three contacts of the group A respectively, the A2 end of the coil group B is connected with W18 and the anode of a power supply, six ends of the stationary contacts of W1-W7 group A of the relay are connected with one end of the moving contacts of W11-W17 group B of the relay, two ends of the stationary contacts of W11-W17 group B of the relay are connected respectively with the output ends W1-W7, the gear output ends W8-W17 are connected respectively with sixe end contacts of W8-W17 of the relay group, and four ends of W1-W17 of the relay group are connected with a common end W20. The utility model is capable of converting denary gear information into one-to-one corre