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3 Cards in this Set
- Front
- Back
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Why should overcurrent protection never be placed in the secondary circuit of a transformer? |
A blown fuse would cause a dangerous open circuit voltage to be induced in the secondary circuit. |
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If the primary voltage of instrument transformers supplying a switch board does not exceed 150 volts to ground, must the secondaries be grounded? |
Yes, because it is supplying a switchboard. |
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Using transformers, electrical energy can be transferred from one circuit to another with no direct _______ connection between them. |
Electrical |
