ZSSK Class 425.95

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ZSSK Class 425.95

Elektricka jednotka 425.95, Strbske pleso.jpg

A class 425.95 train at Štrbské Pleso, 2010.

Slovakia High Tatras TL65.JPG

Passengers alighting at Tatranská Lomnica.
Manufacturer ŽOS Vrútky
Stadler Rail
Adtranz
Family name Stadler GTW
Replaced ŽSR Class 420.95
Constructed 2000 prototype
2001–2006 series
Entered service 2000
Number built 15
Number in service 15
Fleet numbers 425.951–425.965
Capacity 108 seated
92 standing
Operator(s) ZSSK
Depot(s) Poprad-Tatry
Line(s) served Tatra Electric Railway (TEŽ)
Specifications
Train length 32,984 mm (1,298.6 in)
Width 2,700 mm (110 in)
Height 3,500 mm (140 in)
Articulated sections 3
Maximum speed 80 km/h (50 mph)
Weight 38.0 t (83,800 lb)
Power output 320 kW (430 hp)
Acceleration 1.0 m/s²
Electric system(s) 1.5 kV DC
Current collection method Pantograph
UIC classification 2'Bo'2'
Track gauge 1,000 mm (3 ft 3 38 in) metre gauge

The ZSSK Class 425.95, is a class of metre gauge electric articulated trains currently operating on the Tatra Electric Railway (TEŽ), in the Prešov Region of northeastern Slovakia. They are part of the Stadler GTW family of rail vehicles, developed by Stadler Rail.

Tatra Electric Railway

The Tatra Electric Railway, colloquially Tatra Railway, is an electrified single track narrow gauge railway 1,000 mm in the Slovak part of the Tatra mountains. It consists of two parts:

Prešov Region Region in Slovakia

The Prešov Region is one of the eight Slovak administrative regions and consists of 13 districts (okresy) and 666 municipalities, from which 23 have a town status. The region was established in 1996 and is the most populous of all the regions in the country. Its administrative center is the city of Prešov.

Slovakia republic in Central Europe

Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's territory spans about 49,000 square kilometres (19,000 sq mi) and is mostly mountainous. The population is over 5.4 million and consists mostly of Slovaks. The capital and largest city is Bratislava, and the second largest city is Košice. The official language is Slovak.

Contents

Due to their boxy shape, and angled cab ends, the members of the class have been nicknamed "Tetrapaks". [1]

Background

A Class 425.95 train at Stary Smokovec, Summer 2006. TEZ Otatrafured.jpg
A Class 425.95 train at Starý Smokovec, Summer 2006.

The TEŽ is a 35 km (22 mi) long line connecting Poprad-Tatry railway station, on the standard gauge Košice–Bohumín Railway, with a number of ski, tourist, and health resorts in the nearby High Tatras.

Poprad-Tatry railway station railway station

Poprad-Tatry railway station is a break-of-gauge junction station serving the city of Poprad, in the Prešov Region, northeastern Slovakia.

Košice–Bohumín Railway railway line

The Košice–Bohumín Railway can refer to:

High Tatras mountain range along the border of Slovakia and Poland

The High Tatras or High Tatra Mountains, are a mountain range along the border of northern Slovakia in the Prešov Region, and southern Poland in the Lesser Poland Voivodeship. They are a range of the Tatra Mountains chain.

Opened in 1908, the line was completely refurbished in the late 1960s, and is now operated by the Železničná spoločnosť Slovensko (English: Railway Corporation of Slovakia) (ZSSK).

Železničná spoločnosť Slovensko passenger trains operated company in Slovakia

Železničná spoločnosť Slovensko, a.s. (ZSSK) is Slovak state-owned passenger train company based in Bratislava.

By the end of the twentieth century, the ČSD Class EMU 89.0 multiple units, which had entered service on the TEŽ as an integral part of the 1960s refurbishment, had reached the end of their working lives.

ČSD Class EMU 89.0 class of 18 Czechoslovakian electric multiple units

The former ČSD Class EMU 89.0, later known as the ŽSR Class 420.95, was a class of metre gauge electric multiple units operated from the late 1960s until 2001-2002, on the Tatra Electric Railway (TEŽ), in the Prešov Region of northeastern Slovakia.

The fifteen members of the ZSSK Class 425.95 were gradually introduced from 2000 to replace them, and now operate all TEŽ services.

Technical details

The tender for the supply of 14 units was won by a consortium, GTW High Tatras, which had been formed by the companies ŽOS Vrútky, Stadler Rail and Daimler-Chrysler Rail Systems. The design of the class was based upon that of the Stadler GTW 2/6. The overall assembly of the class members was carried out by ŽOS Vrútky.

Stadler Rail AG, also known as Stadler Rail Group, is a Swiss manufacturer of railway rolling stock, with an emphasis on regional train multiple units and trams. Stadler is headquartered in Bussnang, Switzerland.

Adtranz company

ABB Daimler-Benz Transportation, commonly known under its brand ADtranz, was a multi-national rail transport equipment manufacturer with facilities concentrated in Europe and the US.

Stadler GTW Diesel multiple unit

The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen.

Each unit is made up of three sections. The middle section, with a carbody made of steel, is fitted with electrical equipment and traction motors driving a twin axle bogie. Each of the lightweight outer sections, made of aluminium, has a passenger compartment, a driver's workstation, and an unpowered twin axle bogie. The three sections are connected together by steel-rubber joints.

A Class 425.95 train in the mountains, Summer 2006. TEZ Otatrafured2.jpg
A Class 425.95 train in the mountains, Summer 2006.

The roof of the middle section is equipped with an electrically controlled pantograph to collect DC current. Each drive axle in the middle bogie is powered by a three-phase asynchronous motor, fed by an inverter changing the DC power supply to AC.

All units have four braking systems - electro-operating regenerative brakes and an electromagnetic brake on the drive chassis and an electro-mechanical brake and a spring parking brake on all axles. Air suspension is used to minimize the transmission of vibration from the chassis to the passenger compartment.

Each outer section is fitted with electrically driven double-leaf doors, operated by on-demand controls. In the boarding area inside the doors, there are outboard folding seats, 10 holders for skis or bicycles, and handles for standing passengers.

The portions of the outer sections between the boarding areas and the driver's compartments have an elevated floor, accessible from the boarding areas by stairs. The portions between the boarding areas and the middle section have low floors. The upholstered passenger seats in all parts of the passenger compartments are arranged in a 2 + 2 configuration with a middle aisle. On each side of these compartments are large windows with tinted double glazing.

The driver's workstations are separated from the passenger compartments by partly glazed partitions and all glass doors.

In normal use, the passenger compartments are ventilated by microprocessor controlled ceiling ducts. Emergency ventilation can be achieved by tilting open the upper parts of some of the side windows. Heating elements are fitted to the sidewalls. Interior lighting is provided by fluorescent lamps, and the passenger compartments also have visual information systems, with multilingual acoustic stop announcements. All members of the class have been liveried since new in a red, white and grey design.

Service history

A Class 425.95 train at Poprad-Tatry, Summer 2006. Tatra's electrical Railways, Poprad.jpg
A Class 425.95 train at Poprad-Tatry, Summer 2006.

The first member of the class arrived at Poprad in mid-October 2000, after being displayed at the International Engineering Fair in Brno. On 19 October 2000, it made its first trip on the TEŽ, an unpowered run to Starý Smokovec behind a Class EMU 89.0. Between November 2000 and March 2001, the class leader, numbered 425.951, underwent testing on the network. It then operated trial runs with passengers.

The testing process revealed certain incompatibilities between modern vehicles and the TEŽ's then outdated track and power systems. The latter therefore required some conversion work, including reprofiling of the lines in some sections, reconstruction of the platforms across the network, and also adjustments to the power system to enable it to benefit from the new vehicles' regenerative brakes. Eventually the class leader completed the tests and entered regular service.

In 2001-2002, a total of 13 further units and one spare middle section were delivered. They gradually replaced the Class EMU 89.0 units, which were progressively retired. However, the total capacity of the new units proved to be somewhat inadequate, given that only 14 units had replaced 18 predecessors. In 2006, therefore, some of the Class EMU 89.0 units were returned to service to supplement the new units. The same year, two additional class 425.95 outer sections were acquired, and combined with the spare section to make up a fifteenth unit.

The class 425.95s are also capable of multiple unit operation in pairs.

The individual units are numbered as 425 951 to 425.965. [2]

See also

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References

Notes

  1. "Motorové jednotky Stadler GTW 2/6" [Motor unit Stadler GTW 2/6]. imhd.sk website (in Slovak). Retrieved 10 July 2011.
  2. Bittner, Jaromír; Křenek, Jaroslav; Skála Bohumil; Šrámek, Milan (2008). Czech & Slovak Locomotives 2009. Czech Republic: Gradis Bohemia. ISBN   978-80-86-925-06-6.

Further reading

Commons-logo.svg Media related to ZSSK Class 425.95 at Wikimedia Commons