The traction engine of an electric locomotive of the 4th electric locomotive, like all motors of alternating current, has the following main parts: a bed, stator, rotor, bearing shields. The structural differences in the traction engines and other alternating currents are predetermined by the conditions of their operation. The dimensions of the traction engine are limited by the dimensions - the limiting outlines of the locomotive. The 4eded engines withstand significant overloads, shaking, blows when passing wheeled steam along the irregularities of the track, operate at an environmental temperature from +40 to - 50 ° C, under conditions of large voltage fluctuations in the contact network. The design of electric motors 4eds prevents the penetration of dust, moisture, and snow in them.
Three -phase asynchronous engines of the 4EDK280 series are not the most common, but their advantages are difficult to overestimate: ease of device and maintenance, high reliability, low cost, simple start.
The nominal values of the parameters of the engine
|
Name indicators |
standards for sizes |
||
|
4edk280S10U1 |
4edk280M10U1 |
4edk280L10U1 |
|
|
Nominal power, kW |
45 |
60 |
75 |
|
Nominal voltage, in |
220/380 |
220/380 |
220/380 |
|
Efficiency, % |
91.5 |
91.5 |
91.5 |
|
Electric current frequency, Hz |
5-50 |
5-50 |
5-50 |
|
The speed of rotation is synchronous, rpm. |
575 |
575 |
575 |
|
PV% |
40 |
40 |
40 |
