AUXILLIARIES INSPECTION

There are many systems that are attached to the generator that form an important set of elements in order for the generator to operate. Such systems are sometimes thought of as secondary systems but should be given the priority they deserve because failure of any one of these components could trigger a shutdown or cause damage to the generator. This chapter covers one of the major components inside the static exciter cubicle that switches the excitation system power source. It is recommended that the OEM manual be consulted for inspection procedures with regard to these components. Two of the major components are listed, namely thyristor bridge and cooling fans. A brushless exciter requires a power electronics rectifier on the rotor assembly. The static exciter transformers can be inside an enclosure with filtered air so dirt and dust may not be present.