True/False Questions: Please circle the correct answer Bundling cables in transm

Question

True/False Questions: Please circle the correct answer Bundling cables in transmission systems results in reduction of the line reactance T F A load of 40MW-j20Mvar represents an inductive load T F The per-unit quantity is always dimensionless T F In a positive sequence phase arrangement phase b is leading phase a by 120 degrees T F In modeling transformers the resistance in parallel to the ideal transformer represent winding losses T F Underground cables have higher line capacitance when compared with overhead cables T F For AC systems current flows with higher density in the center of the conductor T F Transmission systems contributes most of the customer outage minutes T F Power factor for a capacitor will be a lagging one T F For an RL (resistive and inductive) load the instantaneous power in T F AC systems will have an average of zero T F Please circle the correct answer In a transformer, Eddy current losses are dependent on: (a) the transformer core structural design (b) the transformer material (c) the winding material (d) the number of turns The instantaneous power in AC systems has a frequency that is: (a) the same as the voltage and current frequency (b) twice the frequency of the voltage and current (c) zero (d) non-zero constant A load that consist of a resistor and inductor will have a power of (assume P > 0 and Q > 0): (a) P + jQ (b) P-jQ (c) P (d) j Q

Explanation / Answer

1) true

2) false ( capacitive, supply reactive power)

3) true ( ratio of actual value to base value)

4) true

5) true

6) true

7) false (skin effect)

8) true

9) false

10) false

please ask only 4 question at a time

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.