Transformes Flashcards
1
Q
Will transformers work with DC
A
No
2
Q
Why won’t transformers work with DC
A
There’s no change in the magnetic field
3
Q
2 types of transformer
A
Core
Shell
4
Q
What does a transformer do
A
Change voltage in AC current
5
Q
What is the purpose of laminated soft iron core
A
To get maximum transfer between primary and secondary windings
6
Q
More coils in secondary coil means transformer is
A
Step up transformer
7
Q
Transformer output voltage equation
A
Output voltage = (secondary turns/primary turns) x input voltage
8
Q
Identify input and output cables on HM ships
A
L1-red L2-yellow L3-Blue
9
Q
What is new cable colour codes
A
Brown, black, grey
10
Q
Purpose of centre tapped transformer
A
Reduces electrical shock by halving the voltage
