Master Controller Flashcards
What position must the Master Controller be in to be able to insert or remove key?
Off
What CB will isolate the Reverser and Master Controller?
Control Circuit Breaker
What positions does the Reverser have?
Off
Forward
Neutral
Reverse
What positions does the Master Controller have?
Off
Shunt
Series
Series - Parallel
Weak Fields
To move the MCH to any position, what positions must the Reverser be in?
Forward or Reverse
Hand / Foot Pilot valve set
What happens with the headlights when Reverser is in forward position?
Automatically turns low beams on
They won’t come off until Reverser in Neutral or Reverse and head light switch is OFF
What is position 0?
Off - for coasting
What is position 1?
Used for Shunting
What is position 2?
Series - moderate acceleration
Min addition to resistor grids the motors on each car are connected in Series with each other
What is position 3?
Series - Parallel
After progressing through notching the 2 motors on each bogie are powered in parallel
What is position 4?
Weak Fields
Fastest acceleration
Faster notching and transition from series to parallel
What is Time Notching?
More automatic form of controlling acceleration
A method of preventing wheel spin …
What is Manual Notching?
Method of manually controlling rate of acceleration
Acceleration can be advanced one step at a time by moving MCH forward one position momentarily and back again
Used in low adhesion conditions
