Machinery electric control device of high-voltage frequency conversion bypass cabinet

The utility model discloses a machinery electric control device of a high-voltage frequency conversion bypass cabinet. A frequency converter upper isolating switch, a frequency converter lower isolating switch and a power frequency contactor are arranged in the high-voltage frequency conversion bypass cabinet. The power supply of a far breaker cabinet is divided into two paths, wherein one path reaches a high-voltage motor through the power frequency contactor, and the other path reaches the high-voltage motor through the frequency converter upper isolating switch, a frequency converter and the frequency converter lower isolating switch. An electric control lock for realizing mutual locking is arranged between a power frequency contactor control loop and a frequency converter upper and lower isolating switch auxiliary contact loop. A machinery program lock I is installed on a frequency converter upper isolating switch actuating mechanism, a machinery program lock II is installed on a frequency converter lower