Protection of Grid Connected Hydro Power Generating Units – Practical Insight with Reference to some Case Studies | Original Article

ABSTRACT:

ABSTRACT

The paper attempts to present a unified approach to the vast field of protections for hydro power generating sets.  Typically, there are a number of agencies involved in the formation of protection logics viz the main turbine-generator manufacturer, the protection relay supply company, the customer (Electricity boards or private producers) and may be a consultant also. The integration of views of these agencies is a task in itself. The typical inter-tripping logic diagram given in the paper fulfils this requirement to a great extent. Also, some case studies of actual fault incidents at hydro power stations have been included.