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  2. SEW Eurodrive - Wikipedia

    en.wikipedia.org/wiki/SEW_Eurodrive

    In 1960, SEW-EURODRIVE opened its first foreign subsidiary—SEW-USOCOME—in Haguenau, Alsace. Between 1968 and 1969, the company began expanding by opening assembly plants in Sweden, Italy, and England. In 1974, the first employees started their work at SEW-EURODRIVE in Canada, which was the beginning of the American expansion of the company.

  3. Electro-pneumatic brake system on British railway trains

    en.wikipedia.org/wiki/Electro-pneumatic_brake...

    The first Southern units fitted with EP brake could be considered the Bulleid double deck 4-DDs built 1949 (4001 & 4002). The EP brake fitted to this stock was not of the self lapping type and still required the Westinghouse brake as the 'fail to safe' braking as the EP brake fitted was of the 'energise to apply' type, which meant if there was a loss of brake control voltage the EP brake was ...

  4. Westinghouse Brake and Signal Company - Wikipedia

    en.wikipedia.org/wiki/Westinghouse_Brake_and...

    The Westinghouse Brake & Signal Company Ltd was a British manufacturer of railroad signs. Founded by George Westinghouse, it was registered as "Westinghouse Brake Company" in 1881. [2] [1] The company reorganised in 1920, associating with Evans O'Donnell, and Saxby and Farmer which merged to form the "Westinghouse Brake & Saxby Signal Company ...

  5. Electromagnetic brake - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_brake

    Electromagnetic brakes or EM brakes are used to slow or stop vehicles using electromagnetic force to apply mechanical resistance (friction). They were originally called electro-mechanical brakes but over the years the name changed to "electromagnetic brakes", referring to their actuation method which is generally unrelated to modern electro-mechanical brakes.

  6. Regenerative braking - Wikipedia

    en.wikipedia.org/wiki/Regenerative_braking

    Mechanism for regenerative brake on the roof of a Škoda Astra tram The S7/8 Stock on the London Underground can return around 20% of its energy usage to the power supply. [ 1 ] Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy or potential energy into a form that ...

  7. Active rectification - Wikipedia

    en.wikipedia.org/wiki/Active_rectification

    The low on-resistance property of a MOSFET reduces ohmic losses compared to the diode rectifier (below 32 A in this case), which exhibits a significant voltage drop even at very low current levels. Paralleling two MOSFETs (pink curve) reduces the losses further, whereas paralleling several diodes won't significantly reduce the forward-voltage drop.

  8. Rectifier - Wikipedia

    en.wikipedia.org/wiki/Rectifier

    The 0Z4 was a gas-filled rectifier tube commonly used in vacuum tube car radios in the 1940s and 1950s. It was a conventional full-wave rectifier tube with two anodes and one cathode, but was unique in that it had no filament (thus the "0" in its type number).

  9. Sensotronic Brake Control - Wikipedia

    en.wikipedia.org/wiki/Sensotronic_Brake_Control

    Sensotronic Brake Control (SBC) is an electro-hydraulic brake system developed by Daimler and Bosch. In this system, the wheel brake cylinders of a vehicle are operated through a servomechanism, offering precise and responsive braking. The SBC system was first introduced on the R230 SL-class, which was released in Europe in October 2001. [1]

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