ELECTRO 3 - SYNCHRONIZING GENERATORS

What is the device in the image called?

• synchroscope

• speed meter

• rotation meter

• speed dial

Which device is used to check and match the phase sequence of the oncoming generator with the running generator/s?

• synchroscope

• phase sequence meter

• phase sequencer

• multimeter

Which of the following must be checked when synchronizing generators?

• frequency

• voltage

• phase angle

• phase sequence

Which of the following is/are the advantages of using multiple generators in parallel?

• better reliability of the power system

• better flexibility

• simpler control

• lower cost on generation

What will happen when two generators with significantly unequal frequencies are forcibly run in parallel together?

• large power transients will occur in the system

• one generator will run the other

• huge current will flow in the two Lines of the generators

• nothing. Its perfectly fine to do this

What will happen when two generators unequal or different phase sequence are forcibly run in parallel together?

• large power transients will occur in the system

• one generator will run the other

• huge current will flow in the two Lines of the generators

• nothing. Its perfectly fine to do this

What will happen when two generators significantly unequal terminal voltage are forcibly run in parallel together?

• large power transients will occur in the system

• one generator will run the other

• one of the Line will carry more current and suffer from overloading

• nothing. Its perfectly fine to do this

What is the device in the figure called?

• frequency meter

• synchrosope

• voltmeter

• thermometer

When synchronizing generators, adjusting the field current of the oncoming generator will _______________

• adjust its terminal voltage

• adjust its speed

• adjust its frequency

• adjust the load current

In a conventional synchroscope, the dial or arrow rotating counter-clockwise indicates _______________.

• the frequency of the incoming generator is lower than the running generator

• generator spinning counterclockwise

• generator ready for synchronizing

• the frequency of the incoming generator is higher than the running generator