Unit 5: Primary circuit Flashcards
what are the three circuits that comprise the entire x-ray circuit:?
primary
secondary
filament
primary connects directly to ______ electricity supply
AC
there are ______ switches on the generator that each supply ______
two; 110 V
most modern x-ray machines operate at how many volts?
220
which transformer is located in the primary circuit and what type is it?
autotransformer; self induction
what measures and monitors the voltage supplied?
the line monitor
what is the function of the line compensator?
to add or decrease voltage to get it to 220
what is an autotransformer?
a single coil of wire with an iron core that has connections/taps
the autotransformer is located on the ______ __________ side of the x-ray circuit
low voltage
the autotransformer will _________ the voltage
decrease
when is the voltage on the primary side adjusted by the autotransformer?
before it’s increased to the level of kV when crossing from primary to secondary side
how is voltage set using the autotransformer chosen?
by the tech when selecting kVp at the control panel
where is the kVp meter placed? What does it read? What does it do?
placed across the output terminals of the autotransformer;
reads voltage;
it translates the voltage and displays as kvp
what is a circuit breaker? where is it located?
breaker that stops incoming voltage by “breaking” the circuit;
located on primary side of x-ray circuit
what does the circuit breaker protect?
the entire circuit from being damaged in the event of a power surge
