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Modern mains frequency energisation and control

Modern mains frequency energisation and control

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Electrical Operation of Electrostatic Precipitators — Recommend this title to your library

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Most modern precipitator installations are invariably energised from mains fre quency rectified equipment utilising the latest electrical and electronic components as described in Chapter 5. Generally the transformer input conditions are controlled by anti-parallel connected thyristors/silicon controlled rectifiers, which in turn are controlled by some form of microprocessor based automatic voltage control (AVC) system. Although the supply is generally a fully rectified voltage, many modern equipment designs have the facility of intermittent ener gisation to cater for specific fly ash conditions, or for power saving while meeting a target emission. The basic operating characteristics of a mains frequency rec tified power supply and the types of control will be examined in the following sections.

Inspec keywords: electrostatic precipitators; voltage control; power system control

Other keywords: mains frequency rectified equipment; fly ash conditions; electronic components; intermittent energisation; precipitator installations; electrical components; anti-parallel connected thyristors/silicon controlled rectifiers; automatic voltage control system; mains frequency rectified power supply; modern mains frequency energisation; microprocessor; power saving

Subjects: Electrostatic devices

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