AM.II.K.S13
SkillInspect generator brush serviceability and brush spring tension.
From the FAA library
- Chapter 9: Aircraft Electrical System › Generator Controls › Theory of Generator Control
Figure 9-53. Seating brushes with sandpaper. Flexible low-resistance pigtails are provided on most heavy current carrying brushes, and their connections should be securely made and checked at frequent intervals. The pigtails should never be permitted to alter ... restrict the free motion of the brush. The purpose of the pigtail is to conduct the current from the armature, through the brushes, to the external circuit of the generator. Generator Controls Theory of Generator Control All aircraft are designed…
- Chapter 9: Aircraft Electrical System › Generator Controls › Generator Controls for High-Output Generators
output is not within the specified tolerance, then the generator contactor is not allowed to connect the generator to the load bus. Reverse Current Sensing If the generator cannot maintain the required voltage level, it eventually begins to draw current ... instead of providing it. This situation occurs, for example, if a generator fails. When a generator fails, it becomes a load to the other operating generators or the battery. The defective generator must be removed from the bus. The reverse…
- Chapter 9: Aircraft Electrical System › Generator Controls › Functions of Generator Control Systems
When field current is controlled, generator output is controlled. Keep in mind, this system is manually adjusted and would not be suitable for aircraft. Aircraft systems must be automatic and are therefore a bit more complex. There are two basic ... types of generator controls: electromechanical and solid-state (transistorized). The electromechanical type controls are found on older aircraft and tend to require regular inspection and maintenance. Solid-state systems are more modern and typically considered to have better reliability…