DIESEL ELECTRIC LOCOMOTIVERADIATOR COOLING FAN
For WDG-4/ WDP-4 Diesel Electric Locomotive DR120006001
Radiator Cooling Fan 52" are used in the existing 4000HP EMD Locomotives manufactured by Indian Railway, 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 Railway, 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 aluminium casting 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 SPECIFICATIONS
| Technical Description | 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) (2% Slip Permissible) | 200-1800 Syn. Speed |
| Technical Details | |
|---|---|
| Rating | 60/7.5 HP |
| Frequency | 26.7 to 120 Hz |
| Voltage | 44 to 120 V |
| Current 8P, 120 Hz | 155 - 165 A |
| Current 16P, 120 Hz | 50 - 55 A |
| Speed 8P, 120 Hz | 1790 rpm |
| Speed 16P, 120 Hz | 895 rpm |
Note: **EMD is a trade designator of Electro Motive Diesel. DRESPL is not an authorised EMD distributor nor is otherwise associated with EMD. However, DRESPL does represent that its replacement parts, components, subsystems and services are compatible with and usable on EMD locomotives.