PKP class EW90
| EW90 | |
|---|---|
 | |
| Type and origin | |
| Power type | Electric |
| Build date |
1924-1936 1938-1941 |
| Specifications | |
| AAR wheel arr. |
s+d engine car + trailer |
| Gauge | 1 435 mm |
| Driver diameter | 900 mm |
| Length | 34 460 mm |
| Fuel type | Electric |
| Electric system(s) | 800 V. |
| Current collection method | Pantograph |
| Engine type | 4 x GBM700 |
| Transmission | 68:16 |
| Performance figures | |
| Maximum speed | 80 km/h |
| Power output | 308 kW |
| Train brakes | Knorr EP |
| Career | |
| Operator(s) | PKP |
| Class | EW90 |
| Nicknames | Ewunia |
| Retired | 1976 |
EW90 is the name for a German ET 165 electric multiple unit working for Polish PKP.
History
In the period between 1928 and 1945 it serviced Berlin S-Bahn lines. After Second World War 54 units of this type were brought to Poland to service SKM line in Tricity. It was necessary to rebuilt cars to change power supply from third rail system into pantographs. EW90 EMUs finished their service in 1976 when power supply on SKM line changed from 800 V. into 3 000 V.
Technical data
Each unit consisted of two cars: engine car and trailer. It was possible to connect four units in order to gain eight car train. GBM-700 type electric engines used in EW90, EW91 and EW92 units have 4 main poles and 4 commutation poles. Two-step reduction of engine excitation (up to 50%)is made by short-circuit of parts of main poles. Engines cooling is made with a fan installed on engines' shafts.
Resources
- EW90 pictures gallery at Chester Home Page, URL accessed on May 4, 2007.
- EW90, EW91 and EW92 information at Pojazdy Komunikacji, URL accessed on May 4, 2007.
See also
- Polish locomotives designation
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Wikimedia Commons has media related to EW90. |
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