Transformers Flashcards
1
Q
3 advantages of instrument transformers
A
Low cost
Replacing parts is easy
Low power consumption
2
Q
Circuit in a transformer supplied at 600:5 and current on secondary side is 4.23A. What is current in the circuit
A
600/5 = 120
4.23 x 120 = 507.6
3
Q
What is the current transformer multiplier when a ratio of 800:5 is used
A
160
4
Q
What current flows in an ammeter circuit with a ratio of 800:5 and a primary current of 700A
A
700/160 = 4.375 A
