Question 346Electricity & Electronics - QMED
70% to passWhich of the following statements represents the important factor that must be considered when replacing a faulty diode in a generators excitation field rectifier assembly?
ABe certain that the replacement diode is installed with the same polarity as the one removed.
BThe replacement diode must be dipped in varnish prior to installation to protect against humidity.
CNever alter the diode alignment to cause a change in the neutral plane.
DReplacement of a diode also requires balancing of the rotor with a one-piece rotor lamination to be shrunk fit and keyed to the shaft.
AI Explanation
The correct answer is A) Be certain that the replacement diode is installed with the same polarity as the one removed. This is the correct answer because when replacing a faulty diode in a generator's excitation field rectifier assembly, it is crucial to ensure that the replacement diode is installed with the same polarity as the original. Reversing the polarity of the diode can damage the generator's electrical system and lead to further issues. The other options are incorrect as they do not address the primary consideration of maintaining the proper diode polarity during replacement.
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