Product Details:
| Speed | 2000-14000 RPM |
| Type of Motor | AC |
| Phase | Three Phase |
| IP Rating | IP55 |
| Mounting Type | Foot Mount |
| No. Of Poles | 2 to 6 |
| Frame Size | 100 to 355 |
| Duty | S1 |
| Frames | 3155 |
| Power Kw | up to 400 |
| Temp Class | 155 Degree C |
| Thermal Class | 200 Degree C |
Bharat Bijlee makes the crane and hoist duty motors are ideally suitable for short time and intermittent duties. These motors are specially designed for frequent starts/stops and reversals.
Major Application:These motors are widely used In following applications:
• Crane duty and Hoist duty application including LT &CT d dyes
• Material Handling
• Weirs and Sluices
• Lift Duty
• Auxiliary motors in rolling mills
Insulation:The motors are provided with class F insulation scheme with temperature rise limited to class B limits.
Winding:The stators are wound with modified polyester enamel covered copper wires as per B 13730:3 and impregnated with class F varnish. However, motors wound with dual coated copper wires and VPI can be provided on request.
Thermal Protection (for Winding & Bearing):PTC thermistors / thermostats/ RTDs etc. can be embedded in stator winding on request. In case of frame sizes 250M & above bearing temperature detectors (BTD) can be supplied on request.
Earthing Terminals:Two earthing terminals are provided, one on the body and other in the the terminal box.
Anti-condensation Method:In order to avoid condensation of water inside the motors, they can be heated up by connecting voltage 4% to 10% of rated voltage to the motor terminals. Adequate heating is obtained with current equal to 20-25% of rated motor current. Alternatively, any method as indicated in IS 900 for heating the stator winding could be adopted. Motors can also be offered with built-in space heaters in frame sizes 905 and above.
The degree of Protection:All motors have an annexureIP55 degree of protection as per 15:4691. Higher degree of protection such as IP56, IP66 can be offered on request. All flange mounted motors are additionally provided with oil tight shaft protection on driving end side.
Note: For more details, rAnnexureII.
Cooling:All motors are totally enclosed Fan Cooled (TEFC). The cooling is effected by self driven, bi-directional centrifugal fan protected by fan cover. The Type of cooling is IC411 as per IS 6362. Motors with natural ventilation(TENV) or with forced cooing arrangement can be offered on request. Minimum cooling distance as indicated in GA Drawing has to be provided for effective cooling of the motor.
Note: For more details, refer to annexure I.
Type of Construction:
Standards motors are designed for foot mounting (B3). Motors up Co frame 355 are also suitable for B6, B7, B8, V5 and V6 mounting.
Motors can be supplied in Flange mounting (B5). Flange mounted motors up to frame 355 are also suitableforV1 and V3 mounting.
Specification:| Motor Type | Frame | Power (kW) | Polarity |
| Crane & Hoist Duty Motors | 71 to 355 | 0.37 to 400 | 4, 6, 8 |
| Brake Motors | 71 to 132 | 0.25 to 9.3 | 2, 4, 6, 8 |
| Slip ring Motors | 100 to 160 | 1.10 to 10 | 4, 6 |
| Textile Motors - Ring Frame | 100 to 160 | 1.1 to 15 | 4 |
