Low Voltage Motors: Crane Duty Motor(Slipring)
Application
Overview
| FEATURES | VALUES/ STANDARDS |
|---|---|
| Ambient Temperature | -10 to +50°C |
| Altitude | Not exceeding 1000mtrs above mean sea level. |
| Atmosphere | Non Corrosive & non Hazardous |
| Relative Humidity | Up to 100% |
| Voltage | 415V ±10%, 3 Ph. |
| Frequency | 50Hz ±5% |
| Combined Variation | 10% |
| Duty | S3,S4 & S5 (Refer KHD-50-33R2) |
| Service factor | 1.0 |
Features
| FEATURES | VALUES/ STANDARDS |
|---|---|
| Starting | DOL up to 100 & Star Delta for 112 above frames |
| Permissible starts/hr | Cold successive – 4 hot successive – 3 equally spread – 6 |
| Loading at reduced volts | 75% Rated volts for 5 minutes. |
| Insulation / temp.rise | Class `F’ / 70°C |
| Direction of rotation | Bi-directional |
| No. Of leads | 3 up to 100 & 6 for frame 112 & above |
| Connection | Star Up to 90 frame, 6, & 8 pole ratings of 100 Frames |
| Delta 2 & 4 pole ratings of 100 frame & 112 and above all ratings | |
| Degree of protection | IP 55 |
| Method of cooling | IC 411 |
| T.box position | RHS looking from DE (towards DE up to 160). |
| Bearing life (90% survival basis) |
40,000 working hrs. For direct drive 20,000 working hrs. For belt drive |
| Vibration | Normal class as per IS: 12075 |
| Noise | As per IS: 12065 |
| Construction | Foot / ‘B’ flange |
| Frame sizes | ‘ePM80 to 160’, ‘eSC180 to 355’.(For ‘B’ flange mounting ratings covered in ‘eSC180M’ to be offered in ‘eVSC180L’, & ratings covered in ‘eSC225S’ to be offered in ‘eVSC225M’) |
| Shaft extension | Single cylindrical extension as per IS: 1231 |
| Body material | Cast iron |
| T.box material | Cast iron |
| Fan material | Aluminium up to 160, Cast iron for 180 – 225, mild steel for 250 to 355 Frames |
| Accessories |
Nil |
| Paint & shade | Epoxy base RAL5012 |
| Bearing type Greasing facility |
Prelubricated sealed bearing from 80-160. Open type Bearing from 180. Online greasing facility is for 180 to 355 only |
Specifications
Specifications
