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HT INDUCTION MOTORS |
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| Range |
| Supply Voltage |
2200V, 3300V, 6600V,
11000V |
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| Output |
100kW to 10,000kW |
| IEC Frame Size |
355 to 1000 |
| Supply Frequency |
50 Hz and 60 Hz |
| Number of Poles |
2 Pole to 20
Pole |
| Type |
Squirrel Cage (SCR), Slip
Ring (SR) |
| Enclosure |
TEFC, CACA, TETV, CACW, SPDP |
| Cooling |
IC4A1A1, IC6A1A1,IC5A1A1,
IC8A1W7, IC01A1 |
| Degree of Protection |
IP55, IP23 |
| Mounting |
Horizontal foot
mounted |
| Vertical Flanged
Mounted |
Special Execution
(in squirrel cage) |
Non sparking type ’n’ to IS
9628 |
| Increased safety type ’e’
to IS 6381 |
| Motors for Solid State
Control
(Variable Voltage &
Variable Frequency) |
| Standards |
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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, Rerolling Mill,
etc. |
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Method of
cooling |
IC4A1A1 -
TEFC Totally Enclosed FanCooled(Surface
Cooled) |
| Major Features |
Energy efficient surface
cooled motors |
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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 |
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Winding Temp.
Detectors (RTD) for HT , PTC thermisters for
LT. |
| Bearing Temp.
Detectors (RTD) |
| Bearing Temp.
Indicators (Dial Type) |
| Mounting of
Vibration Probes |
| Method of
cooling |
IC6A1A1 - Closed Air
Circuit Air Cooled |
| Major Features |
Unit Construction |
 |
Robust Steel Frame |
| Spider type Shaft |
| Double Ended Radial
Ventilation |
| Solid Deep Rotor Bars in
Single Cage |
| Special Double Cage as per
Drive |
| Endshield Mounted
Bearings |
| Antifriction/Sleeve
Bearings |
| Dynamically Balanced
Rotors |
| Stringent Quality
Checks |
| Highly reliable Class 'F'
Insulation with Class 'B' temp. rise |
| Ease of Maintenance |
| Space Heaters |
| On line greasing for
bearings |
| Other Features |
Winding Temp. Detectors
(RTD) for HT , PTC thermisters for LT. |
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Bearing Temp. Detectors
(RTD) |
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Bearing Temp. Indicators
(Dial Type) |
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Mounting of Vibration
Probes |
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Phase Segregated
Terminal Box (Fault withstanding type) for
HT |
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Star Point Terminal
Box |
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Air temperature Indicators
(Dial Type) |
| Method of
cooling |
IC5A1A1-Totally Enclosed Tube
Ventilated |
| Major Features |
Robust Steel
Frame |
|
Spider type Shaft |
| Double Ended Radial
Ventilation |
| Solid Deep Rotor Bars
in single Cage |
| Special Double Cage as
per Drive |
| Endshield Mounted
Bearings |
| Antifriction/Sleeve
Bearings |
| Dynamically Balanced
Rotors |
| Stringent Quality
Checks |
| Highly reliable Class
'F' Insulation with Class 'B' temp. rise |
| Ease of Maintenance |
| Space Heaters |
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| Other Features |
Winding Temp. Detectors
(RTD) |
| |
Bearing Temp. Detectors
(RTD) |
| Bearing Temp. Indicators
(Dial Type) |
| Mounting of Vibration
Probes |
| Phase Segregated Terminal
Box (Fault withstanding type) |
| Star Point Terminal
Box |
| Applications |
| Pumps, Compressors,
Fans, Blowers, Haulages, Conveyors, etc |
| Method of
cooling |
IC8A1W7 - CACW Closed Air Circuit Water
Cooled |
| Major Features |
Unit
Construction |
 |
Robust Steel Frame |
|
Spider type Shaft |
|
Double Ended Radial Ventilation |
| Solid Deep Rotor Bars in Single
Cage |
|
Special Double Cage as per Drive |
|
Endshield Mounted Bearings |
|
Antifriction/Sleeve Bearings |
|
Dynamically Balanced Rotors |
|
Stringent Quality Checks |
|
Highly reliable Class 'F' Insulation with Class
'B' temp. rise |
| Ease
of Maintenance |
| Space
Heaters |
| On
line greasing for bearings |
| Other Features |
Winding Temp. Detectors
(RTD) for HT, PTC thermisters for LT |
| |
Bearing Temp. Detectors (RTD) |
|
Bearing Temp. Indicators (Dial Type) |
|
Mounting of Vibration Probes |
| Phase
Segregated Terminal Box (Fault withstanding
type) for HT |
| Star
Point Terminal Box |
| Water
Leakage Detector |
| Water
Flow Switches |
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| Method of
cooling |
IC01A1 - Screen Protected
Drip Proof |
| Major Features |
Robust Steel
Frame |
 |
Spider type Shaft |
| Double Ended Radial
Ventilation |
| Solid Deep Rotor Bars
in Single Cage |
| Special Double Cage as
per Drive |
| Endshield Mounted
Bearings |
| Antifriction/Sleeve
Bearings |
| Dynamically Balanced
Rotors |
| Stringent Quality
Checks |
| Highly reliable Class
'F' Insulation with Class 'B' temp. rise |
| Ease of
Maintenance |
| Space Heaters |
| Other Features |
Winding Temp.
Detectors (RTD) for HT, PTC thermisters for
LT |
|
Bearing Temp. Detectors
(RTD) |
| Bearing Temp. Indicators
(Dial Type) |
| Mounting of Vibration
Probes |
| Phase Segregated Terminal
Box (Fault withstanding type) for HT |
| Star Point Terminal Box |
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