Card Set Information
API 12 25
Book Questions Chapter 7
What are the two types of electric current?
AC and DC
What components supply AC power?
AC generators and inverters
Transformer rectifiers produce what type of electric current?
DC from an AC input
What provides a constant rotational input to the generator regardless of engine rpm?
CSD (constant speed drive)
Generators can provide what type(s) of power?
AC or DC depending on generator type.
If equipped, what does an APU provide?
Emergency power or power during ground operations.
What bus provides power to safety of flight components?
Distribution of electrical energy is accomplished by a __________ system.
Name the four types of busses and the type of equipment that is supplied power.
: safety of flight;
: mission equipment;
: convenience items
: starting circuits
What provides an automatic means of interrupting electrical power? A manual method?
Circuit breakers. Circuit breakers and switches.
What signals a system malfunction?
What is the main provider of power to the AC busses?
With the main generator failure, what bus or busses wil stay on the line?
DC and AC essential buses.
What provides power to the start bus?
External DC power, internal battery or APU
What bus charges the battery?
DC essential bus.