A number of auxiliary systems and related controls are provided throughout the hydroelectric plant to support the operation of the…

A general hierarchy of control is illustrated in Table 5.1. Manual controls, normally installed adjacent to the device being controlled,…

The governor system is the key element of the unit speed and power control system. It consists of control and…

The excitation system fulfills two main functions: 1. It produces DC voltage (and power) to force current to flow in…

The generator transformer steps up the generator terminal voltage to the voltage of the power system or plant switchyard. Generator…

The generator output is connected to terminal equipment via cable, bus bar, or isolated phase bus. The terminal equipment comprises…

The generator circuit breaker and associated isolating disconnect switches are used to connect and disconnect the generator to and from…

The flow through the turbine is controlled by wicket gates on reaction turbines and by needle nozzles on impulse turbines.…

Synchronous generators and induction generators are used to convert the mechanical energy output of the turbine to electrical energy. Induction generators are used…

The type of turbine selected for a particular application is influenced by the head and flow rate. There are two…