An automatic transfer switch will switch over when the voltage falls below __% of rated and will return automatically upon a resumption of service.
a. 30%
b. 70%
c. 60%
d. 40%
e. 80%
Answer: B
An automatic transfer switch will switch over when the voltage falls below __% of rated and will return automatically upon a resumption of service.
a. 30%
b. 70%
c. 60%
d. 40%
e. 80%
Answer: B