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

The utility model discloses a mechanical electric control device of a high-voltage frequency conversion bypass cabinet. A frequency conversion circuit breaker I (DF1), a power frequency circuit breaker (DF2) and a frequency conversion circuit breaker II (DF3) are arranged in the high-voltage frequency conversion bypass cabinet; and a distance circuit breaker cabinet supplies power in two ways, wherein, one way passes through the power frequency circuit breaker to a high-voltage motor, and the other way passes through the frequency conversion circuit breaker I, the incoming line of a frequency conversion device, the frequency conversion device, the outgoing line of the frequency conversion device, and the frequency conversion circuit breaker II to the high-voltage motor. The device is characterized in that the frequency conversion circuit breaker I is provided with an electric control lock (K1); the power frequency circuit breaker is provided with an electric control lock (K2); the two locks share the same key