Protecting Busbars

This article summarizes the CIGRE SC B5 WG16 report "Modern Techniques for Protecting Busbars in HV Networks" published in October 2010 as CIGRE brochure 431. The report establishes criteria and requirements for designing protection systems for busbars in high voltage networks. The selection and application of different protection schemes are addressed. It applies to all types of busbar designs and is intended to assist the relay application engineer in the correct selection and application of busbar protection systems and provides requirements relevant to the performance, operation, testing, and maintenance of busbar protection systems More