|
 |
54" Radiator Cooling Fan |
| |
In the existing 4000/4500 HP EMD Locomotives
manufactured by Indian Railways, water act as a
coolant. The water temperature is controlled by means
of radiator banks and AC motor driven cooling fans.
Radiator Cooling Fan motors used on existing
4000/4500 HP EMD Locomotives manufactured by
Indian Railways, are of inverted squirrel cage, dual
speed, single winding, 3-phase induction machines
and are an integral part of the cooling fan assembly.
The term “inverted” indicates that these differ from the
conventional squirrel cage motor in the way that the
rotor is located outside of the stator.
All the aluminum castings meet the quality
requirements as per ASTME -155 level 1.
All the machines are tested a per IEEE 112A/ IEC 60349
Pt-II, IS:4722-2001 and IS:4029-1967. |
| |
|
Technical Details |
DR PART NO |
DR/004/01 |
Design Operating Points: |
Minimum Air Flow
(full speed) at an air density of 0.070lb/cu.ft |
77,500 CFM |
Static Pressure |
3.0 in-WG |
Fan Speed (rpm) |
260 -1905 |
(2% SlipPermissible) |
Syn. Speed |
Technical Details: |
Rating |
75 / 10 HP |
Frequency |
26.7 to 127 Hz |
Voltage |
44 to 212 V |
Current 8P, 127 Hz |
180 - 191 A |
Current 16P, 127 Hz : |
56.5 - 66.5 A |
Speed 8P, 127 Hz |
1885 rpm |
Speed 16P, 127 Hz |
947 rpm |
|
| |
| |
| |
|
| |
52" Radiator Cooling Fan |
Radiator Cooling Fan 52” are used in the existing 4000 HP EMD
Locomotives manufactured by Indian Railways, where water act as
a coolant. The water temperature is controlled by means of radiator
banks and AC motor driven cooling fans.
Radiator Cooling Fan motors used in existing 4000 HP EMD
Locomotives manufactured by Indian Railways, are of inverted
squirrel cage, dual speed, single winding, 3-phase induction
machines and are an integral part of the cooling fan assembly. The
term “inverted” indicates that these differ from the conventional
squirrel cage motor in the way that the rotor is located outside of the
stator.
All the aluminum castings meet the quality requirements as per
ASTME -155 level 1.
All the machines are tested as per IEEE 112A/ IEC 60349 Pt-II,
IS:4722-2001 and IS:4029-1967. |
| |
|
Technical Details |
DR PART NO |
DR/004 |
Equiv. EMD Part No. |
10632019 |
Design Operating Points: |
Minimum Air Flow
(full speed) at an air density of 0.070lb/cu.ft |
70,000 CFM |
Static Pressure |
2.5 in-WG |
Fan Speed (rpm) |
200 -1800 |
(2% SlipPermissible) |
Syn. Speed |
Technical Details: |
Rating |
60 / 7.5 HP |
Frequency |
26.7 to 120 Hz |
Voltage |
44 to 200 V |
Current 8P, 127 Hz |
155 - 165 A |
Current 16P, 127 Hz : |
50 - 55 A |
Speed 8P, 127 Hz |
1790 rpm |
Speed 16P, 127 Hz |
895 rpm |
|
| |
| |
| |
|
| |
48" Radiator Cooling Fan |
Radiator Cooling Fan 48” are used where low decibel levels are
required. This fan comes in single as well as double speed designs
with variable blade combinations to achieve required air quantity
and decibel levels.
Radiator Cooling Fan 48” are of inverted squirrel cage, dual speed,
single winding, 3-phase induction machines and are an integral part
of the cooling fan assembly. The term “inverted” indicates that these
differ from the conventional squirrel cage motor in the way that the
rotor is located outside of the stator.
All the aluminum castings meet the quality requirements as per
ASTME -155 level 1.
All the machines are tested as per IEEE 112A/ IEC 60349 Pt-II,
IS:4722-2001 and IS:4029-1967. |
| |
|
Technical Details |
DR PART NO |
DR/004/03 |
Equiv. EMD Part No. |
9517833 |
Technical Details: |
Rating |
50 HP |
Frequency |
26.7 to 120 Hz |
Voltage |
44 to 200 V |
Current 8P, 120 Hz |
100- 110 A |
Speed 8P, 120 Hz |
1778 rpm |
|
| |
|
 |
|
|
