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Vivarail battery electric train. Vivarail have produced the Class 230 train which is converted from redundant London Underground D-Stock trains. A demonstrator unit, the two-car 230002, was fitted for diesel-electric- battery power. Vivarail developed a fast charger giving a 100 mi (160 km) range with a 10 minutes recharging time. [1]
In February 2018, Vivarail announced that its first two-car battery unit was approaching completion and was projected to run on the main line network during that summer. [ 25 ] The first unit entered service with West Midlands Trains (as London Northwestern Railway) on the Marston Vale Line on 23 April 2019, [ 12 ] almost two years after the ...
IUoU is a DIN-designation [1] (DIN 41773) for a lead-acid battery charging procedure that is also known as 3-stage charging, 3-phase charging, or 3-step charging. It consists of three phases (or stages), to be executed by a battery charger. The three phases are: I-phase (constant electric current), Uo-phase (constant over-voltage), and U-phase ...
A trial by Great Western Railway (GWR) for rapid-charging battery trains is underway, as part of plans to phase out diesel engines.. The initiative was launched in February 2022, with the trials ...
a thyristor inverter to convert the 3 kV direct voltage to a three-phase alternating voltage with amplitude and frequency varying continuously from 0 to 2.4 kV and from 0.5 to 130 Hz; a control circuit, with automatic control, of the converter; a 4-pole, 3-phase asynchronous traction motor with a cage rotor and rated power of 280 kW (380 hp).
Vivarail's main project was the conversion of retired London Underground D78 Stock into two new classes for National Rail services. It was led by former Chiltern Railways chairman Adrian Shooter; the American Railroad Development Corporation was a shareholder. [1] [2] [3] In November 2022, the company entered into administration.
The resistance of the rails used for the third phase or return is higher for AC than for DC due to "skin effect", but lower for the low frequency used than for industrial frequency. Losses are also increased, though not in the same proportion, as the impedance is largely reactive. [12] 3-phase pantograph on a Corcovado Rack Railway train in Brazil
The first prototype unit operating during the 2017 Rail Live event. A prototype was produced for testing and accreditation in August 2015. [4] [5] The initial prototype D-Train was built as a three-car diesel-electric unit, which was completed in the summer of 2016, following which it underwent a programme of main-line testing, with the intention that it be used on a year-long trial service on ...