PKP class EU20

Specifications
Specifications
Configuration:;
• UIC	Co′Co′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,350 mm (4 ft 5 in)
Length	18,500 mm (60 ft 8 in)
Width	3,050 mm (10 ft 0 in)
Loco weight	120 tonnes (120 long tons; 130 short tons)
Electric system/s	3000 V DC overhead lines
Current pickup(s)	Pantograph
Traction motors	6 of, gear-ratio 81:21
Loco brake	Knorr

Type and origin
Type and origin
Power type	Electric
Builder	Lokomotivbau Elektrotechnische Werke (LEW)
Build date	1955–1958
Total produced	34

EU20
EU20
	EU20-24 at the Warsaw Railway Museum, 2006.
Power type
Type and origin
Power type	Electric
Builder	Lokomotivbau Elektrotechnische Werke (LEW)
Build date	1955–1958
Total produced	34
Configuration:;
Specifications
Configuration:;
• UIC	Co′Co′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter	1,350 mm (4 ft 5 in)
Length	18,500 mm (60 ft 8 in)
Width	3,050 mm (10 ft 0 in)
Loco weight	120 tonnes (120 long tons; 130 short tons)
Electric system/s	3000 V DC overhead lines
Current pickup(s)	Pantograph
Traction motors	6 of, gear-ratio 81:21
Loco brake	Knorr
Maximum speed
Performance figures
Maximum speed	110 km/h (68 mph)
Power output	4,340 hp (3,240 kW)
Operators
Career
Operators	PKP
Numbers	EU20-01 to EU20-34
Retired	1976–81
Preserved	EU20-24
Disposition	One preserved, remainder scrapped

The EU20 is an electric locomotive type formerly operated by the Polish State Railways (PKP) in Poland.

History

In production for a mere three years (1955–1958), the series was built at the Lokomotivbau Elektrotechnische Werke works — commonly shortened to LEW — in Hennigsdorf, East Germany. During this time, 34 units were produced with the intention for use as a mixed-traffic locomotive – hence its EU designation – though the reality is that the EU20 saw more use as a freight locomotive than a passenger one. EU20s were the first electric locomotives to be used on the route between Warsaw and Silesia.

The class gained notoriety for its frequent breakdowns due to overheating of resistors, and the lack of additional cooling facilities found in other locomotives.

Technical data

Mechanically, the EU20 was identical to the earlier EU04 (also built by LEW), sharing the same traction engines, rectifiers, and gas compressors.

Operational history

During the series' 26-year service, most units were assigned to the Piotrków Trybunalski depot. EU20s were withdrawn over a 6-year period, beginning in 1976, with the last locomotive being withdrawn in 1981.

Preservation

EU20-24 has been^[when?] preserved as an exhibit at the Warsaw Railway Museum, and is the only surviving example from the series.

References

^ ^a ^b ^c ^d Goldsack, Paul, ed. (1981). Jane's World Railways 1981-82 (23rd ed.). London, New York: Jane's Publishing Company Ltd. p. 318. ISBN 0 7106 0726 1.

External links

Lokomotywa elektryczna EU20-24 - stacjamuzeum.pl (in Polish)

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[JWR8182-1] Goldsack, Paul, ed. (1981). Jane's World Railways 1981-82 (23rd ed.). London, New York: Jane's Publishing Company Ltd. p. 318. ISBN 0 7106 0726 1.

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