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An HVDC converter converts electric power from high voltage alternating current (AC) to high-voltage direct current (HVDC), or vice versa. HVDC is used as an alternative to AC for transmitting electrical energy over long distances or between AC power systems of different frequencies. [1]
Long distance HVDC lines carrying hydroelectricity from Canada's Nelson River to this converter station where it is converted to AC for use in southern Manitoba's grid. 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]
A schematic representation of long distance electric power transmission. From left to right: G=generator, U=step-up transformer, V=voltage at beginning of transmission line, Pt=power entering transmission line, I=current in wires, R=total resistance in wires, Pw=power lost in transmission line, Pe=power reaching the end of the transmission line, D=step-down transformer, C=consumers.
It is often known as Bollywood and is one of the largest film producers in India as well as a major centre of film production worldwide. [79] [80] The following table lists the top 10 most expensive Hindi films produced in the Hindi film industry.
This is a list of films produced by the Dhallywood film industry of Dhaka, Bangladesh, ordered by year of release. Dhallywood films are generally listed under the Bengali language . Some films before 1971 mixed Urdu and Bengali language.
In the 1930s, West Bengal was the centre of Indian cinema, and Bengali cinema accounted for a quarter of India's film output in the 1950s. [1] [2] A 2014 industry report noted that while approximately 100 films were produced annually in Bengali. [3] The Bengali film industry, was valued at around ₹120–150 crore in terms of revenue in 2014.
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Direct current may be converted into alternating current via an inverter. Direct current has many uses, from the charging of batteries to large power supplies for electronic systems, motors, and more. Very large quantities of electrical energy provided via direct-current are used in smelting of aluminum and other electrochemical processes.