What is an advantage of using high-voltage disconnect switches instead of breakers to isolate main power transformers?
A. Disconnect switches can be operated either locally or remotely.
B. Disconnect switches provide direct visual indication that the circuit is broken.
C. Disconnect switches are cheaper and provide the same automatic protection as a breaker.
D. Disconnect switches are capable of interrupting a higher current flow with less heating than a breaker.
Show Answer
Answer: B
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