E = 100 V 60 Hz t (sec) 60 - 100 V -18

Q: Consider the following circuit. Determine the magnitude of current IT in Ampere. Take frequency of…

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Q: The figure above shows the percentage differential relay used for the protection of an alternator…

A: We got percentage differential relay for protection of an alternator winding. Minimum pick-up…

Q: If whole number ratio in Lissajous pattern is Nx:Ny=2:3 and fx=1kHz, then fy= 666.667 Hz O 1.5 kHz…

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Q: For an inductor in a sine-wave ac circuit, VL lags iL by 90 VL and iL are in phase VL leads iL by…

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Q: Find the total number of volt-amperes reactive. R Xc XL ll 3Ω 5Ω 9Ω + E = 50 V Z0° f = 60 Hz

A: Given circuit,

Q: How do you make this conversion?

A: The conversion of rectangular form into polar form needs to be briefed.

Q: Q1 (a) Based on electrical DC circuit as depicted in Figure Q1(a), (i) Determine the mesh currents…

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Q: Plot the following points: Transmissibility Frequency (Hz) 0.03 2 0.09 9 0.6 11 1.5 100 20 200 1 700…

A: We have to plot the points in log paper chart . Log chart is a chart in which both the axis are in…

Q: 1-For the lag circuit in Figure 6, determine the phase lag between the input voltage and the output…

A: The given phase lag circuit is We need to find the phase lag between the input and output voltages…

Q: The frequency at which this circuit operates is O 50 Hz 120 Hz 100 Hz O 60 Hz

A: In this question, we need to determine the frequency of the given waveform.we know, frequency f=1/T

Q: Determine the impedance of the circuit in Figure 3 at the given frequency. 10 kHz Rw 20 (2 ++ 4.7 ΚΩ…

A: laplace  transfer of capacitor, C→1cs laplace  transfer of  inductor, L→Ls So that Rw and L are in a…

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.