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Direct Match Conjugate

The motors can start directly from the grid only if they are favorable to the conditions of the rated capacity of the grid being sufficiently high, making the motor starting current irrelevant and the motor starting current being of low value because of its very high power reduced. The starting of the motor is carried out without load, a factor that reduces the starting current time, emphasizing the effects on the power system.

In this way, it refers to the starting system, in which the electric motor VBM3538-5D receives at its terminals, a high voltage at the exact moment of departure. The cage rotor motor starts at full load and with the current rising by an average of four to eight times the rated current, varying according to the type and number of poles. The conjugate at the start must reach about 1.5 times the nominal torque.

It is considered as the simplified starting method, in which specific components are not used for the motor drive. Only contactors, circuit breakers or switch switches are used which allow the motor to be supplied with full voltage at the moment of starting.