scope:

This guide complements IEEE Std 125™ by providing application details and the impact of plant and system features upon hydroelectric governing performance.¹

Purpose

The purpose of this guide is to provide guidance for the design and application of hydroelectric turbine governing systems. There is a heightened awareness within the electric utility industry of the importance in the effective application of governing systems for dynamic stability. The need exists to provide guidance in the effective governing system application for a better understanding among users. Present standards do not adequately address this need.

1.Information on references can be found in Clause 2.