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High Voltage Motors: Megapack Closed Type Wound
Operating & Supply Conditions
| FEATURES | VALUES/ STANDARDS |
|---|---|
| Ambient Temperature | -10 to +50°C |
| Altitude | Not exceeding 1000 m above mean sea level |
| Atmosphere | Non corrosive & non hazardous |
| Relative Humidity | Up to 100% |
| Voltage | 415V, 690V, 6.6kV, 3.3kV, 11kV +/- 10% |
| Frequency | 50Hz +/- 5% |
| Combined Variation | +/-10% |
| Duty | S1 (continuous) |
| Service factor | 1.0 |
Execution & Features
Construction Features
| FEATURES | VALUES/ STANDARDS |
|---|---|
| Protection | IP 55 |
| Type of cooling | IC 611/ 81W |
| Class of Insulation | F / H |
| Terminal Box position | LHS from NDE |
| Bearing | Roller Bearings at NDE, Ball bearings at DE |
| Lubrication | Grease |
| Mounting | IM 1001, IM 3011, IM 2001, IM 3001 |
| Accessories | ACH, 6*simplex RTD, 2* Duplex RTD type BTD |
| Frame sizes | 355 frame to 710 frame |
| Shaft Extension | Single cylindrical extension as per IS:1231 |
| Connection | Star |
Performance Features
| FEATURES | VALUES/ STANDARDS |
|---|---|
| Method of starting | LRS/ STATOR-ROTOR/GRR |
| Vibration | As per IS: 12075 |
| Noise | As per IS: 12065 |
| Fault withstand level of Terminal Box | 43.7kA for 0.25sec, 39.4kA for 0.25 sec (in case of 11kV supply voltage) |
| Bearing Life | 40,000 working hours in case of direct drive. 20,000 working hours in case of belt drive. |
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