Aluminium Series
Crane Motors
Construction
Winding & Protection: All motors are wound with super enameled dual coast copper wires. This enable motors to be used for inverter applications as well. Features like vacuum pressure impregnation (VPI) & PTC thermistors embedded in stator winding can be provided on request.
Stampings: Stampings are made from low loss high permeability steel.
Earthing terminals: Two earthing terminals are provided one in the terminal box & other on the motor body.
Anti-condensation Heater: To avaid moisture accumulation accumulation inside the motor, the motor windings can be heated by connecting 4-10% of rated voltage to the motor terminals. This will generate enough heat equivalent to 20-25% of rated current. Alternatively any method as described in IS:900 can be used. Motor can also be offered with space heaters on request for frames 100 & above.
Range
KW | 0.18 to 45 kW |
RPM | 1500, 1000, 750 |
Mounting | Foot (B3), Flange (B5), Face (B14) & combinations |
Frame | 71 to 225M |
Voltage | 415V+10% or as required |
Frequency | 50Hz+5% or as required |
Ambient | 45C. (Refer Table 1) |
Altitude | Upto 1000m above msl (Refer Table 2) |
Rotor type | Squirrel cage aluminium die cast |
Enclosure | Totally enclosed fan cooled (TEFC) |
Protection | Ip55 |
Insl. Class | Class F insulation with temp. rise limited to class B |
Duty cycle | S3, S4 & S5 |
Standards | IS: 325, IS: 1231, IS: 2223 & IS:4722 |
Motors With Integral Brakes
Enquiry Details
When placing an enquiry, please furnish the following details;
- Application details
- Motor power & speed
- Voltage & frequency variations
- Mounting
- No. of Start / Stops per hour with duty & CDF
- Load GD2 at motor speed
- Load torque or torque / speed curve of driven equipment
- Duty cycle diagram if other than those described herein
Table 1
Ambient temp (oC) | Deration factor for Power |
---|---|
45o C | 1.00 |
50o C | 0.96 |
55o C | 0.92 |
60o C | 0.87 |
Table 2
Altitude above msl (m) | Deration factor for Power |
---|---|
1000 | 1.00 |
1500 | 0.97 |
2000 | 0.94 |
2500 | 0.90 |
3000 | 0.86 |