PKP class EP05

Infobox Locomotive Auto
name = EP05
powertype = Electric

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caption = EP05-16 at Warszawa Ochota station, 2007.
builder = flag|POL Rebuilt from EU05 locomotives by PKP
serialnumber =
buildmodel =
builddate = 1973-1977
totalproduction = 27
whytetype =
aarwheels =
uicclass = Bo'Bo'
gauge = RailGauge|sg
leadingsize =
driversize = 1250 mm
trailingsize =
wheelbase =
length = 16140 mm
width = 2950 mm
height = 3987 mm
framesize =
weightondrivers = 20,6 t
weight = 82,5 t
locotenderweight =
fueltype =
fuelc

tenderc

consumption =
watercons =
electricsystem = 3000 V
collectionmethod = pantograph
primemover =
enginetype = 3AL4846ZT
aspiration =
displacement =
boiler =
boilerpressure =
feedwaterheater =
firearea =
tubearea =
fluearea =
tubesandflues =
fireboxarea =
totalsurface =
superheatertype =
superheaterarea =
cylindercount =
cylindersize =
rearcylindersize =
hpcylindersize =
lpcylindersize =
valvegear =
transmission = 77:44
topspeed = 160 km/h
poweroutput = 2032 kW
tractiveeffort = 23 kN
factorofadhesion =
locobrakes = Oerlikon
trainbrakes =
railroad = PKP
railroadclass = EP05 flag|POL
numinclass =
roadnumber =
officialname =
nicknames = Piątka
locale =
deliverydate = 1973
firstrundate = 1973
lastrundate =
retiredate =
restoredate =
scrapdate =
currentowner =
disposition =|The EP05 is a Polish modification of Czech electric locomotive EU05 used by Polish railway operator ("PKP")

History

The locomotive was produced in the years 1957-1960 in three types: "20E1", the prototype, "30E1" and "30E2". In need of modern electric locomotives for passenger trains, and unable to get timely delivery of EU06 locomotives from England, Poland bought 30 locomotives from its southern neighbours.

In 1969 PKP started testing several changes to enable EU05 locomotives to achieve speeds up to 160 km/h. First trials were made with the EU05-29 locomotive, and soon it became clear that it was possible to safely achieve speeds up to 170 km/h after changing the transmission rate. The decision was made to rebuild all locomotives of EU05 class during first servicing. As a result, by 1977 almost all locomotives had been rebuilt to EP05 class, except for locomotives 09, 12 and 19, which had been scrapped earlier. To distinguish the new series from its precedessor, the color scheme was changed from two-tone green to orange. All modifications were conducted in "Zakłady Naprawcze Taboru Kolejowego" in Gdańsk.

In the beginning of the 1980s EP05 was being prepared for pulling express trains. Most of the engines had had multiple steering and pneumatic devices installed, which allowed them to pull trains with two connected locomotives and operate automatic fixtures. First express train, "Górnik" (En.: miner) led by EP05 locomotive run in 1984 on "Centralna Magistrala Kolejowa", achieving a top speed of 138,2 km/h. In the second half of the 1980s the top speed on "Centralna Magistrala Kolejowa" rose to 160 km/h and as a result EP05 could run at top speed. Some of those engines later had their clutch changed from Secheron to Skoda.

Present day

Following the introduction of EP09 locomotives, EP05 started to be withdrawn from service, but due to several break downs of EP09 it was postponed. Today only one unit (EP05-23) of this locomotive still run under PKP Cargo, pulling InterCity trains. There is also one unit of EU05 left in service, which is in fact EP05-22 engine repainted in 2003. It serves as an exhibit in Kraków.

Technical data

EP05 series locomotive is a passenger electric locomotive able to pull passenger trains. It has steering cabins on either end of the box. On a straight, horizontal track it could pull 600 t. passenger trains with a top speed of 160 km/h.

ee also

*EU05

Nicknames

*Piątka (eng. "The Five") - from locos number
*Czesio (eng. "The Czech") - from name of country where was produced (Czech Republic)

Resource

# [http://rafikx.republika.pl History of EU05 and EP05 series] , URL accessed on June 7, 2007.
# [http://www.ep09.rail.pl Technical data of EP05, EP08 and EP09 locomotives] , URL accessed on June 7, 2007.