Description
Product Specifications
| Product Code: | HIDM |
| Frame Size: | 100 L to 400 LX |
| Rating: | 1.5 to 710.0 kW |
| Poles: | 2, 4, 6, 8 |
| Mountings: | B3, B5, B14 & combinations |
| Protection: | IP55 |
| Enclosure: | IC411, IC416, others on request |
| Rated Voltage: | 415V |
| Rated Frequency: | 50Hz |
CONSTRUCTION:
Separate cooling:
When the motor is run from 5Hz to 50Hz & expected to deliver the rated torque, the motor will draw the rated current. The heating due to the rated current will be equal to the rated heating. At lower speeds, the cooling of the motor is reduced significantly resulting in increased temperature rise. To control this, inverter duty motors are fitted with separate cooling fans. This ensures that the rated cooling is maintained even at reduced speeds.
Insulated Bearing:
It is also suggested to protect motors of frames 315 & above with insulated bearing at non-drive end due to high shaft currents induced, which are detrimental to bearing life. In smaller motors, shaft currents are less, which are taken care of by grease film in the bearing.
