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. |