The HXD2 ( Chinese : 和谐2型电力机车 ) is an electric locomotive and a series of related locomotive classes built by CRRC Datong Electric Locomotive and Alstom . The locomotives designs are based on the Alstom Prima electric locomotives, and are a product of a cooperation agreement signed between the two companies in 2004. All locomotives are intended for heavy freight work, including coal trains on the Datong Qinhuangdao line ( Daqin Railway ).
24-556: The original HXD2 locomotives are twin unit Bo′Bo′+Bo′Bo′ vehicles whereas the HXD2B and HXD2C versions are single unit Co′Co′ machines. At the time of their construction the HXD2 and HXD2B locomotives were amongst the most powerful locomotives in the world. The HXD2C is similarly specified to the HXD2B but of reduced power, and with increased localisation of components for lower cost. The HXD2
48-597: A B-1-B (AAR) or Bo′1Bo′ (UIC) arrangement. The intention was to give a lighter axle loading for the Iida Line . Another rare arrangement was the Bo-2-Bo used for two 3 ft 6 in ( 1,067 mm ) gauge Japanese electric classes, the ED76 and ED78 . These used flexicoil outer bogies which permitted the bogies some lateral movement, as well as swivelling. These are a pair of Bo′Bo′ locomotives semi-permanently coupled as
72-692: A Bo-Bo is regarded as a B-B because the AAR system does not take traction motors into consideration, only powered axles. An AAR-like notation is used in France too, making it hard to tell the B-B and Bo-Bo engines apart, both of which are common there. Railcars and multiple units use similar two-axle powered bogies and many of them use similar hydraulic or mechanical transmissions, rather than traction motors. However railcars are also lightweight and do not require all axles to be powered in order to gain adequate adhesion. They thus use
96-419: A new localised variant, in 2(Bo′Bo′) wheel arrangement and 9.6MW power, with axle load of 27tonnes (up to 30 tonnes on specialised line) was unveiled, designated HXD2F , and officially nicknamed 超级大力士 . The locomotives are designed for heavy haul freight applications (up to 7,000 t or 6,900 long tons or 7,700 short tons train weights), and to be capable of multiple working of three locomotives. The design
120-534: A separate inverter/rectifier electrical power system. Electrical power for auxiliary devices is supplied via IGBT converters powered from the same intermediate DC power supply used to power the traction motors. Computer control and monitoring systems are from the Alstom AGATE product range. In August 2012 CNR Datong announced the production of a new variant of its twin section, 8 axle, 10MW freight locomotive using domestically produced traction and control systems;
144-514: A single unit with this wheel arrangement tends to have too little adhesive weight to accelerate the train sufficiently fast without wheelslip . Eighteen of the Japanese 3 ft 6 in ( 1,067 mm ) narrow-gauge Bo-Bo electric JNR Class ED61 [ ja ] were rebuilt in the late 1970s to form the Class ED62 . An additional carrying axle was added between the bogies to give
168-750: A single unit. They are each constructed with a single cab, giving a cab at each end. This layout includes the Alstom Prima II , one of the most powerful electric locomotives in production (9 MW (12,000 hp)). Versions include the China Railways HXD2 and the Indian WAG-12 . The B′B′ or B-B arrangement is similar, but usually applies to diesel-hydraulic locomotives rather than diesel-electrics. The axles on each bogie are coupled together mechanically, rather than being driven by individual traction motors. Diesel-hydraulics have their engine mounted on
192-509: A wheel arrangement of 1A-A1 or A1-1A rather than B-B. A common arrangement is for each power car to have two independent engines and transmissions, each driving a single axle of each bogie. The difference between 1A-A1 and A1-1A is that 1A-A1 has the powered axles closest to the middle of the car, whilst A1-1A has the powered axles closest to the ends. The 2'Bo' (AAR:2-B) arrangement has been used similarly, but rarely, for lightweight railcars that only needed two powered axles. Only one example
216-628: Is Minsk Terminal , the central station of the capital. BCh reports to the ministry of transport and as of 2010 was composed of 84 organizations; 46 enterprises, 38 institutions, and 7 factories/plants. The rail network is divided into 6 departments: named after the regions around Minsk , Baranovichi , Brest , Gomel , Mogilev and Vitebsk . Belarusian Railway was included in the sanctions lists of Canada in November 2022 and Ukraine in January 2023, respectively. Canada also blacklisted Vladimir Morozov,
240-427: Is also specified for temperatures down to −40 °C (−40 °F). The locomotive is ballasted to a 25 t (24.6 long tons; 27.6 short tons) axle load - a reduction to 23 t (22.6 long tons; 25.4 short tons) axle load with reduced starting tractive effort is optional. An (€350 million) order for 180 locomotives was placed (2005), of which the initial 12 would be made in France, then 24 supplied for assembly,
264-535: Is derived from technology used in the 'Harmony' (HXD) series, and has been named "超级大力士" , (literal: "Super Strongman"). Bo%E2%80%B2Bo%E2%80%B2%2BBo%E2%80%B2Bo%E2%80%B2 B-B and Bo-Bo are the Association of American Railroads (AAR) and British classifications of wheel arrangement for railway locomotives with four axles in two individual bogies . They are equivalent to the B′B′ and Bo′Bo′ classifications in
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#1732870012030288-527: Is designed for 200 km/h, but first used until 160 km/h. In October 2010 Belorusskaja Železnaja Doroga ordered 12 units of a derived variant of the HXD2 two-section locomotive, to be designated BCG-1 . In 2012 CNR Datong supplied the Chinese mining operation, Shenhua Group , with two 9.6 MW (12,900 hp), twin section, 120 kilometres per hour (75 mph), eight-axle locomotives, with traction equipment supplied by Bombardier. The locomotive type
312-463: Is recorded, the diesel-electric four-car Rebel railcars of 1935. Three powercars were built, with a 600 bhp engine and two traction motors on a single bogie. Half of the powercar was used as a baggage car, supported by a conventional coaching stock unpowered bogie. Belorusskaja %C5%BDeleznaja Doroga Belarusian Railway ( BCh ) ( Belarusian : Беларуская чыгунка ( БЧ ) / Biełaruskaja čyhunka , Russian : Белорусская железная дорога )
336-624: Is the national state-owned railway company of Belarus . It operates all of the rail transport network in Belarus . As of 2005, the railway employs 112,173 people. The company, formed in 1992 after the dissolution of the Soviet Union , is one of the inheritors of the Soviet Railways . It administers 5,512 km of railway with ( 1,520 mm ( 4 ft 11 + 27 ⁄ 32 in ) Russian gauge ). The railway's most important station
360-469: The SNCF Class BB 71000 and the narrow-gauge ÖBB 2095 [ de ] , the bogie axles have been linked by coupling rods . Having only a single final-drive per bogie allows more room for the bogie pivots on this narrow-gauge design. With high power full-size locomotives, splitting the drive directly to two axles is preferred, as it only requires a less powerful final drive gearbox. In AAR notation
384-550: The UIC system. The arrangement of two, two-axled, bogies is a common wheel arrangement for modern electric and diesel locomotives . Bo-Bo is the UIC indication of a wheel arrangement for railway vehicles with four axles in two individual bogies , all driven by their own traction motors . It is a common wheel arrangement for modern electric and diesel-electric locomotives , as well as power cars in electric multiple units . Most early electric locomotives shared commonalities with
408-402: The absence of frame mounted wheels no leading or trailing axles were necessary to aid cornering, reducing weight and maintenance requirements. Due to the advent of modern motors and electronics more power can be brought to the rail with only a few axles. Modern electric locomotives can deliver up to 6400 kW on only four axles. For very heavy loads, especially in transportation of bulk goods,
432-462: The axles by a nose suspended drive. The bogies are of welded steel construction, with tractive forces transmitted by a low mounted drawbar . The electrical system consists of a transformers based on ABB Group products with 4 windings for electric traction power supply per transformer. Traction inverters are IGBT semiconductor device based, and of the Alstom ONIX type - each traction motor has
456-928: The first unit was numbered HXD2-1001. The two first units have corrugated sides, following ones have smooth sides. From 2014 CNR Dalian delivered 40 HXD2 quite similar to series HXD2-1000. From 2012 CNR Datong delivered 50 HXD2 quite similar to both first HXD2-1000 at the operator Shenhua Mining. Minor differences in cabin form. In April 2014 two indigenous two-unit (Bo′Bo′)-(Bo′Bo′) locomotives were unveiled by CNR Datong, nicknamed “超级大力士” ( trans. 'Super hercules" or "Super strongman"). The locomotives had an axle load of 27–30 tonnes (27–30 long tons; 30–33 short tons) for higher tractive effort, with power output of 9.6 MW (12,900 hp). In November 2015 two indigenous two-unit (Bo′Bo′)-(Bo′Bo′) locomotives were unveiled by CNR Datong. The locomotives had an axle load of 18 tonnes (18 long tons; 20 short tons) for higher speed, with continuous power output of 11.2 MW (15,000 hp). It
480-534: The main frame of the locomotive, together with a hydraulic transmission. Power is then transmitted to the bogies by cardan shafts and a short driveshaft between axles. A common example of this is the German V200 design and its many international derivatives. The need to arrange the bogie suspension around the drive shafts led to an unusual bogie design with radius arms rather than hornblocks and so prominently visible wheels and rims. In some rare examples, such as
504-550: The remainder being produced in China. The locomotives are used primarily for coal transportation, specifically on the Datong - Qinhuangdao railway line. The first China built locomotive was produced May 23, 2007. In 2010 the locomotives began to be used on coal trains from Inner Mongolia . The main structural component is an integrated welded steel main bean and floor, with load bearing side sills. The side walls are of corrugated metal, and
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#1732870012030528-546: The roof of the locomotive is removable. The structure is designed for loads of 3,600 kN (810,000 lb f ) in tension and 2,500 kN (560,000 lb f ) in compression. The couplers are designed for up to 4,000 kN (900,000 lb f ) force. The drivers cabins are designed for single driver operation. Driver facilities include a separate air-conditioned/heated area with refrigerator, cooking and washing facilities, and seating and beds. The locomotives use asynchronous AC electric motor technology, which drives
552-431: The steam engines of their time. These features included side rods and frame mounted driving axles with leading and trailing axles. The long rigid wheelbase and the leading and trailing axles reduced cornering stability and increased weight. The Bo-Bo configuration allowed for higher cornering speeds due to the smaller rigid wheelbase. Furthermore, it allowed better adhesion because all the wheels were now powered. Due to
576-524: Was originally described as the DJ4-6000 class. Variants of the type were produced for railways other than China Railway : in 2010 Belarus state railways ordered a HXD2 twin unit locomotive variant ( BCG-1 ); and in 2012 Shenhua Group also ordered twin section locomotives. In 2012 CNR Datong announced a new sub-version of the HXD2 class, built using fully localised production; the HXD2-1000 series. In 2014
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