What are the advantages of paralleling three-phase transformers?
What will be an ideal response?
Because three-phase transformers are wound on the same core, the efficiency of transformation is higher, with less flux leakage than three single-phase units. Typically, the cost is less for a three-phase unit compared to the same capacity system using three single-phase units.
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The resistance of switchgear should be checked using a _____.
a. 480V multimeter b. 600V megger c. 600V multimeter d. 1,000V megger
What is the value of Y in the table below?
A) 1,700
B) 150
C) 1,500
D) 1,200
About ____ of a pig's birth weight is due to the environment
a. 5 percent c. 45 percent b. 15 percent d. 95 percent
How is size of an extinguisher related to its ability to put out a fire?
A) The fewer combustible materials, the bigger the extinguisher. B) The more combustible materials, the bigger the extinguisher. C) The more combustible materials, the smaller the extinguisher. D) The fewer combustible materials, the newer the extinguisher.