How much size of cable required for giving supply of 15 kW motor??

Question

Accepted Answer

The size of cable required for a 15 kW motor depends on factors such as voltage, current, and cable type.

The cable size is determined by the current rating of the motor.
The voltage drop across the cable should be within acceptable limits.
The cable type and insulation should be suitable for the motor's operating conditions.
Consulting electrical codes and standards can provide guidelines for cable sizing.
Example: For a 15 kW motor operating at 415V, the current can be calculated as I = P / (√3 * V) = 15,000 / (√3 * 415) = 20.7 A.

Accepted Answer

The size of the cable required for supplying a 15 kW motor will depend on several factors, such as the voltage of the motor, the length of the cable run, and the ambient temperature of the installation site.

In general, the cable size required can be calculated based on the motor's full load current (FLC), which is determined by the motor's power rating and voltage. For a 15 kW motor operating at 415 volts, the FLC would be approximately 28 amps.

Assuming the cable run is less than 50 meters and the ambient temperature is within a normal range, a cable size of 4 mm² with a current-carrying capacity of 32 amps may be suitable. However, it is always best to consult with a qualified electrician or engineer to determine the appropriate cable size and specifications for your specific installation.

How much size of cable required for giving supply of 15 kW motor??

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