Nigel P.M. Nurse - Present and future requirements for the protection of Photovoltaic systems

Nigel P.M. Nurse

Cooper Bussmann, Burton on the Wolds, Leicestershire, UK,

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Although the production of electricity using Photovoltaic (PV) cells has been possible for many decades, it is only recently, with increased costs of carbon based electricity production and CO2 reduction initiatives, together with improvements in inverter technologies, that large scale systems have become commercially viable. The paper describes how the protection requirements of both small and large PV systems have developed and the challenges that have been faced by fuse-link manufacturers to provide the end user with over-current protection. The paper will also cover the background to the introduction of international standards for fuse-links to protect PV systems and some of the developments in system components that will influence the next generation of protection.

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