Exam (elaborations)
Electric Power Research Institute EPRI Practice test
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If a generator is producing 500 MW and 200 Mvar, is the generator? A. Leading B. Lagging C. Underexcited D. Dropping - B. Lagging What is the IEEE device number for a differential relay? A. 87 B. 86 C. 67 D. 50 - A. 87 Can a synchronous machine have a negative torque angle? What does this mean? A. Yes / the machine is absorbing reactive power B. No / the machine is absorbing active power C. No / the machine is absorbing reactive power D. Yes / the machine is absorbing active power - D. Yes / the machine is absorbing active power A customer load is fed at 120 volts. The customer voltage is doubled while the load magnitude stays the same. What effect does this have on the power losses? A. Doubles the losses B. Halves the losses
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Institution
Liberty University
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Electric Power Research
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Liberty University
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Electric Power Research
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if a generator is producing 500 mw and 200 mvar
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is the generator a leading b lagging c underexcited d dropping b lagging what is the ieee device number for a differential relay a 87 b 86 c
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