Day 12 and 13 Progress Check Flashcards
What action does the over voltage relay take when activated?
Actuates field trip relay disconnecting the field
What does a reverse current cutout relay prevent?
Motoring of the DC generator
Which type of voltage regulator is used in heavy-duty generator systems?
Carbon pile
In a carbon pile regulator, what happens when there’s high voltage?
Spring is pulled back
At what voltage does the over voltage protection typically operate?
32 volts
How is the voltage adjusted in a vibrator type regulator?
With a tension spring
What is the purpose of a current-limiter circuit?
To prevent overloading of a DC generator
What component is used as a variable resistor in solid state voltage regulators?
Transistor
What are the three components combined in a three-unit control panel?
Voltage regulator, current limiter, and reverse-current cutout relay
In a vibrator type regulator, what happens when there’s high voltage in the voltage coil?
Contacts open
