The Power Input to a 415volt, 50HZ, 3Phase motor is measured by two wattmeter's which indicate 300KW and 10KW respectively. Calculate the power factor. O a. 0.7 O b. 0.925 O C. 0.8 d. 0.525

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A: The power demand remains constant in a given circuit. Small power factors will cause more and more…

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Q: V (Volts) 12V 30 18 42 t (ms) -12V

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A: Power factor<1 Lagging power factor

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A:

Q: In the following AC circuit, the peak value of the current in the resistor is /peak = 26 A; R = 10;…

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Q: 9) In a 208 V 3-phase motor load, the current drawn by the motor is 22 A and the PF is 0.6. a) What…

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Q: QUESTION 5 Correct the power factor for a motor connected in series with a 120V RMS 60HZ power…

A: This question belongs to network theory . It is based on the concept of power factor correction for…

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A: Given, Base kVA, SBnew=25000 kVA. Alternator kVA, SBold=5000 kVA. Reactance, Xold=8%.

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A:

Q: Why the efficiency of large size alternator should be larger than that of small size?

A: Large alternator have more efficiency than a small size alternator, these efficiency gain are mostly…

Q: For the waveform as shown in the figure 2, If the average voltage is 60.679 volt, Find the value of…

A: Evaluating the average value of the above graph:

Q: Please answer in typing format

A: Step 1: we know that 1hp=736 watt.given  that 0.3 hp=220.8 watt,Step 2: we know that mechanical…

Q: SINE(0 6Vp-p 1.5K) R₁ LL 2.5 mH 100 PL On the load, find the Power (P) in Watts (W) R A 180//180 Ω…

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Q: Show that the average power absorbed by each resistor is P2Ω.=P4Ω.=7.20W.

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A:

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A: In a D.C. generator if the field resistance is increased , then output voltage will.....

Q: Determine the power and the rms value (300mt+) (a) 5 сos (300лt+

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A: Considering the power formula, S=P+jQ S is apparent power P is active power Q is reactive power

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Q: For the circuit of Figure, assume the source operates at a frequency of 100 rad/s. Calculate the…

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Q: Only need help on parts e,c and F. Thank you!

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Q: The unit for three phase apparent power is Select one: O a. KW O b. V O C. KVA O d. KVAR

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Q: u [V] 110- 55+ 3 RMS value of the current: M 6 9 a) RMS value of the current: u(t) b) voltage u(t)…

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A: Given a AC generator with, Total number of poles, P = 10. Synchronous speed, Ns = 1200 rpm.

Q: The reading of the AC voltmeter is 40 V rms. Find the following: Figure 1 a. The value of the peak…

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A: Last option is correct. The explanation is provided below.

Q: Supply voltage has a value of 246 V. Its average value is Average value, Vave =

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Q: reactive power calculation.

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Q: The current , power factor and input power to a 3-phase ac motor is 16.03A , 0.48 and 6KW. Calculate…

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A:

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A: it is asked to determine the frequency of given generator

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A: Given Data Single Phase AC motor I = 4.5 A V = 220 V P = 720 W

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.