Chapter 82 Flashcards
0
Q
An active current transformer should never:
A) be inspected until properly grounded
B) have its primary circuit opened
C) produce excessively high voltages
D) have its secondary circuit opened
E) have its secondary connected to a meter
A
D) have its secondary circuit opened
1
Q
When AC action causes a counter current in a coil, it is termed: A) self inductance B) capacitance C) hysteresis D) current generation E) electromagnetic induction
A
A) self inductance
2
Q
Transformers are rated in terms of what two units?
A
VA, kVA
Not autobot and decepticons
3
Q
Current transformers step down the current rather than the:
A
Voltage
4
Q
Some of the fire hazards of transformer cooling can be compensated for by using: A) chelates B) antifoaming substances C) florinated hydrocarbons D) freons E) organic compounds
A
C) florinated hydrocarbons