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A high-voltage direct current ( HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. [1] Most HVDC links use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed in 2019 over a distance of ...
AC/DC are an Australian rock band from Sydney. Formed in November 1973, the group originally consisted of vocalist Dave Evans, lead guitarist Angus Young, rhythm guitarist Malcolm Young (his older brother), bassist Larry Van Kriedt and drummer Colin Burgess. The band's current touring lineup features Angus Young, vocalist Brian Johnson (from ...
In DC fast-charging, grid AC power is passed through an AC-to-DC converter in the station before reaching the vehicle's battery, bypassing any AC-to-DC converter on board the vehicle. DC Level 1: Supplies a maximum of 80 kW at 50–1000 V. DC Level 2: Supplies a maximum of 400 kW at 50–1000 V.
The University of Johannesburg (UJ) is a public university located in Johannesburg, South Africa. The University of Johannesburg came into existence on 1 January 2005 as the result of a merger between the Rand Afrikaans University (RAU), the Technikon Witwatersrand (TWR) and the Soweto and East Rand campuses of Vista University . [8]
Some authors use the term pulsed DC to describe a signal consisting of one or more rectangular ("flat-topped"), rather than sinusoidal, pulses. [1] Pulsed DC is commonly produced from AC ( alternating current) by a half-wave rectifier or a full-wave rectifier. Full wave rectified ac is more commonly known as Rectified AC.
Direct current (DC) (red line). The vertical axis shows current or voltage and the horizontal 't' axis measures time and shows the zero value. Direct current ( DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow ...
The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet as its stator to create its magnetic field. [1] It is a commutated series-wound motor where the stator 's field coils are connected in series with the rotor windings through a commutator. It is often referred to as an AC series motor.
The locomotive has a Co-Co axle configuration, two-cab design, DC main and auxiliary generators and an AC auxiliary alternator, with six DC traction motors. While the majority of South African mainline electric locomotives to date have been dual-cab units, the two-cab design is a new feature on South African mainline diesel-electric locomotives.