Cap-discharge resistors stabilize PFC operation

Birkett, Martin (2012) Cap-discharge resistors stabilize PFC operation. Electronic Products. ISSN 0013-4953

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Power factor correction is a very popular and well established technique for reducing the overall energy consumption of electrical systems including power lines, transformers, motors, and other high inductive loads. The most common and simplest method of power factor correction in large inductive loads is to install compensating capacitors on the network close to the load. Medium-voltage capacitors typically operate from 5 to 25 kV. They are constructed from a set of capacitor elements, each with its own fuse, wired in series and parallel groups, and fitted inside a dielectric fluid-filled metal enclosure with terminals on top. The capacitors can hold large charges, which, if left to self-discharge, allow dangerous voltages to remain for long periods of time, presenting potential safety hazards for service personnel. The discharge of 0.25 J of stored energy to the human body can provide a heavy shock, and 10 J can be fatal.

Item Type: Article
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Paul Burns
Date Deposited: 31 Aug 2018 11:32
Last Modified: 11 Oct 2019 19:30

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