Crompton Greaves >> Industrial Systems >> HT Motors >> Energy Efficient Motors
| Range | ||
| Supply Voltage | : upto 6600V |
 |
| Output | : 100kW to 1250kW | |
| IEC Frame Size | : 315 to 450 | |
| Supply Frequency | : 50 Hz and 60 Hz | |
| Number of Poles | : 2 Pole to 8 Pole | |
| Type | : Squirrel Cage (SCR) | |
| Enclosure | :TEFC (Surface Cooled) | |
| Cooling | : IC4A1A1 | |
| Degree of Protection | : IP55 | |
| Mounting | : Horizontal foot mounted | |
| : Vertical Flanged Mounted | ||
| Special
Execution (in squirrel cage) |
a) Nonsparking type ’n’ to IS 9628 b) Increased safety type ’e’ to IS 6381 c) Motors for Solid State Control (VVVF) |
|
| Standards | ||
| : Specification | IEC34 - 1, IS 325, IS 4722 | |
| : Dimensions | IEC 72-A, IS 8223, IS 2223 | |
| : Degree of protection | IEC34 - 5, IS 4691 | |
| : Cooling | IEC34 - 6, IS 6362 | |
| : Construction & mounting | IEC34 - 7, IS 2253 | |
| : Noise level | IEC34 - 9, IS 12065 | |
| : Vibration | IEC34 - 14, IS 12075 | |
| : Testing | IEC34 - 1, JEC37, IS 325 | |
| Applications | ||
| Pumps, Compressors, Fans, Blowers, Mills, Crushers, Haulages, Conveyors, Agitators, Ring Granulators, Rubber Mills, Rubber Mixers, Disc Refiners, etc. | ||
| Method of cooling | :IC4A1A1 - TEFC Totally Enclosed Fan Cooled(Surface Cooled) |
| Major Features | : Energy efficient surface cooled motors |
|
: Robust Steel Frame |
| : Solid Deep Rotor Bars in Single Cage | |
| : Special Double Cage as per Drive | |
| : Endshield Mounted Bearings | |
| : Antifriction Bearings | |
| : Dynamically Balanced Rotors | |
| : Stringent Quality Checks | |
| : Highly reliable Class 'F' Insulation with Class 'B' temp. rise | |
| : High efficiency | |
| : Low noise levels | |
| : Low vibration levels | |
| : Ease of Maintenance | |
| : Space Heaters | |
| Other Features | : Phase Segregated Terminal Box (Fault withstanding type) for HT only |
| : Winding Temp. Detectors (RTD) for HT, PTC thermisters for LT. | |
| : Bearing Temp. Detectors (RTD) | |
| : Bearing Temp. Indicators (Dial Type) | |
| : Mounting of Vibration Probes | |