Variable Speed Power Transmission Devices Flashcards Preview

Millwright 2nd Year > Variable Speed Power Transmission Devices > Flashcards

Flashcards in Variable Speed Power Transmission Devices Deck (7):
0

What does VFD stand for

Variable frequency drive

1

What does PIV stand for

Positive infinite variable

2

All variable speed mechanical drives operate in two operational ranges what are they

Constant torque and constant horsepower

3

Who must lock out equipment

Each person working on a piece of equipment

4

What should you do if you are unsure of what to lock out

Ask someone who knows

5

What Should you do before working on equipment that is locked out

Perform a test start or bump test

6

Wide belt drives are variable speed mechanical what kind of pulleys do they use

Adjustable diameter pulleys