Motors and drive systems

Calculated energy savings for the year ending 31st March 2011.

Starting a motor without any control of the current and torque typically causes motor current more than six times the rated current and starting torque much higher than the rated torque of the motor.

The high starting torque creates high loads that can stress mechanical components such as couplings and shafts. With larger motors, high starting currents can lead to flickering lights and unacceptable voltage drops across a site.

Belt drive transmissions are a common way of transmitting power from a motor to a load such as a fan, pump or machine.

The transmission efficiency of a belt drive depends on a number of factors relating to the drive’s design, its condition and its operation.

Read the attached technical guide for further information on belt drive transmission efficiency.