R switch In the ckt shown above, a generator supplies a voltage E (t) = 30 sin (50t) V, the inductance is L=QH. the resistance R= 204 and I (o) = 1. Find the currect after 't' seconds. Ict) = ?
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- A 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.1. Set up the circuit shown using a function generator for the source voltage Vs. Set the function generator to 10 V P-P at 100 Hz (You need to set the Vp-p on the function generator to 5V). Connect the red lead of the scope to VoUT and the black lead to the ground to measure the output or load voltage. 1N4004 Vout Vs 10Vpp 100HZ 1k Ohm 2. Sketch Vout on right, measure the exact peak voltage to the ground on the oscilloscope (use the oscilloscope). DC coupling setting of the 主 Note: Show the results on the screen to your professor to get the signature. V out (Peak) = Vout 3. What is the measured frequency of the load voltage waveform? Frequency f =Quèstion 7 A shunt generator running at 1000 r.p.m. has generated e.m.f. as 300 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly 300 480 420 360 A Movinn to another ouestion will caro thic roenonco P Type here to search O O O O
- If, in one (360 degrees), all of the instantaneous power falls under positive loops (no negativeloops), the load must be:a. A resistorb. An inductor or capacitorExplain:A solenoid with an inductance of 0.25 H and a resistance of 100 Q is connected to a 120-V 60-Hz source. The current is: Please check the closest answer that applies. X L 120 V 60 Hz O0.226 2-16.3° A O0.224 2-31.2° A LOTrue or False: In a DC Machine, the field windings can only be found at the Stator
- A dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf * O 10 V O 200 V O 100 V O 20 VA 3-phase, 50 Hz, 1100 V motor has a total load output of 100 hp and a power factor of 0.78 learning and an efficiency of 85 %. This power factor is corrected to 0.92 by a capacitor bank connected in delta. A capacitance unit is made up of 4 identical 275 V capacitors. So find the capacitance of each capacitor..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
- The type generator field winding is supplied from the external D.C. source. O Compound Self excited O Shunt separately excited244. The apparent power drawn by an a.c. circuit is 20 kVA and reactive power is 12 kVA. The real power in the circuit in kW will beA non-sinusoidal current source (iT=2+1.5sin1000t+ 1cos30o0t- 0.5sin4000t) A is applied to the * ?circuit shown. Find the total power İL iT ic -J9N J4Q 39 W O 20 W O 55 W 28 W )!( هذا السؤال مطلوب