A method for detecting a cable break of a motor

A method for detecting a cable break comprises a measuring currents of respective phases, the power cable are fed into a three-phase motor by an inverter by at least, and a rotational speed of the engine, determining whether the respective currents and the rotational speed of the engine conditions for the detection of cable break fulfill determining whether various conditions with respect to a reference value of a cable breakage sensing a power control command to be met, performing a counting of a clock of the cable break if the conditions are satisfied, and determining elapsed whether a predetermined period of time, so that a cord is considered to be broken, when the predetermined time period has elapsed.