Squirrel Cage Crane Duty KD Series

MARATHON Electric presents KD series TEFC squirrel cage motors specifically designed for DOL operated Crane duty / intermittent duty application. A sequence of identical duty cycles, each including a period of operation at constant load and a rest and de-energized period. These periods being too short to attain thermal equilibrium during one duty cycle (see Fig.2). In this duty, the cycle is such that the starting current does not significantly affect the temperature rise for this duty cycle. Unless otherwise specified the periodic duty is applicable for 10 minutes duration. The $3 duty generally is associated with 6 starts per hour.

Image & other credits to "A Regal Brand"

Description

MARATHON Electric presents KD series TEFC squirrel cage motors specifically designed for DOL operated Crane duty / intermittent duty application. The motors are designed to take care of the high electrical and mechanical stresses arising due to frequent starts – stops associated with intermittent duty application. The motors are compact providing high output for a given frame size and have low inertia. These salient features make them most suitable for EOT Cranes.

Supply & Operating Conditions

These motors can be wound for any voltages from 200 volts to 690 volts and for either 50Hz or 60 Hz frequency.

Standard KD motors are available for supply voltage of 415V and frequency of SOHz.

The supply voltage is assumed to be sinusoidal and balanced as defined in IS:325.

Duty

A sequence of identical duty cycles, each cycle including a significant period of starting, a period of operation at constant load and a rest and de-energized period. These periods being too short to attain thermal equilibrium during one duty cycle.

Motor is stapped either naturally or by means of mechanical brake so that there is no cause of extra heat.

Reviews

There are no reviews yet.

Be the first to review “Squirrel Cage Crane Duty KD Series”

Email Us

Whatsapp

Enquire Now