Governor

Question 1

What is the governor

Answer 1

A safety device that monitors the speed of the elevator

Question 2

Two ways a governor can trip

Answer 2

-electrically
-mechanically

Question 3

Electrical trip

Answer 3

-set to a certain speed (lower than mechanical)
-when tripped, shuts power off to the motor
-can activate when elevator is moving in both directions

Question 4

Mechanical trip

Answer 4

-set to a higher speed than the electrical trip
-can only be tripped when elevator is moving in the down direction
-activates safeties on elevator when tripped

Question 5

Where are the wire seals

Answer 5

-on the spring for the weights
-on the spring for the jaws

Question 6

What is the sheave in the bottom of the shaft called

Answer 6

Governor tension sheave

Question 7

When should the governor be checked for proper operation

Answer 7

-time of install
-periodic inspection
-Cat 1 inspection
-Cat 5 inspection

Question 8

How does the governor get tripped mechanically

Answer 8

When the sheave is spinning fast enough, the weights get pushed outward due to centrifugal force and hits the jaws closed, stopping the gov cable and pulling the release carrier(only activated in the down direction)

Question 9

What does full safety mean

Answer 9

When the governor is tripped electrically and mechanically