Q3/A de shunt generator has a full load output of 10KW at terminal voltage of 220V. The sum of mechanical and core losses is 500W. Calculate the input power to the shaft and then determine the efficincy. Where Ra=0.602 and the Rf-16092 (30 mark)
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- 6. What is the effect of load inductance on the ripple current? 7. i effect of chonnine Bock and boost 8. Wh 9 What chopping 10. At what duty evcle does the load current rinnle current hePlease show you detailed solution Number 10 A voltage of 250 volts at 50 Hz is impressed on a circuit having a 60-ohm resistor, 35-?F capacitor, and a 0.25-henry inductor in series. Determine power factor. A. 0.979 C. 0.924 B. 0.862 D. 0.707For figure (1)draw and calculate the voltages waveform across each half of secondary winding and across load when 100sin2π60t applied across the primary, then find PIV.
- What is the accurate LVDT output voltage when the core is at the centre position? a. 5.22V b. 2.5V c. 0 d. 1.2VThe conversion of an AC to DC Source is by using the A) Commulator B) None of these C Round ring D) Slip ringThe field winding of DC generator has capable of carrying the full- load current and it is usually made few turns of heavy gauge wire. Shunt Series Compound separately excited
- In capacitive AC circuit voltage is leading current O a. True O b. FalseA supply of 240V-50HZ feeds a highly inductive load of 502 through thyristor bridge that is half-controlled. What is the load power factor when the firing angle delay is 45°? A. 0.6565 B. 0.5566 C. 0.6655 D. 0.5656 1igatioA 400 MVA synchronous machine has H, = 4.6 MJ/MVA and a 1200 MVA machine has H₂=3.0 MJ/MVA. The two machines operate in parallel in a power plant. Find out H relative to a 100 MVA base.
- The complex volt amperes in a series circuit are (4300- j2500) and the current is (25 + j43.3)A.Find the applied voltage.10. Determine the peak-to-peak ripple and de output voltages in Figure 5. The transformer has a 36 V rms secondary voltage rating, and the line voltage has a frequency of 60 Hz. A R surge 120 Vrms 00000 ellle B Figure 5. www 10 Ω C 100 μF www R₂ 3.3 ΚΩ.H.W Show the voltage waveforms across each half of the secondary winding and across RL. • Find the average value of the full-wave rectified voltage in Figure. ● 120 Vrms elller 4:1 D₁ WI RL 1.0 ΚΩ