H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
H02H11/004—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect phase sequence; with switching for obtaining correct phase sequence
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches