4 thyristors rated 200 V in series. The operating voltage of the string is 600 V. Derating factor of the string is?

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Q: A DC generator has eight poles, wound as lap then rewound as a wave, calculate the electrical motive…

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Q: Question- Find the maximum power delivered by 1500 kW, 3-phase, star-connected, 4 kV, 48 pole, 50 Hz…

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Q: 2. Determine lx. 10A (↑ It iz $2.0 → Ix |↑ Ix $82 lla 452

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Q: For the aluminum pipe shown in figure below (G=27GPa).Determine (a) The torque To causing an angle…

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Q: Si has 4 valence electrons. ● Truel O False

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Q: How does capacitive touch function

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Q: 1. Conversion of Complex Number Given the following electrical parameters expressed in complex…

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Q: What did the first digital electrical computer consist of?

A: Given: What did the first digital electrical computer consist of?

Q: A transformer works at 6 KVA with a primary voltage of 82 V. If the load voltage is 235 V ,then the…

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Q: Determine ID1= 15 V C 10 ΚΩ D D₁ KH D₂ ID2= E 5kQ www F 10 V ; VD1= VD2=

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Q: 3. Determine Vx. 60V 25.0 n 40n 1252 M + V+ - 240 $8.n :24.0 €24.2 JA

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Q: Determine the system function of the discrete system described by difference quation y(n)-1/2…

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Q: The field winding of a d.c

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Q: 3. Determine the total resistance of the circuit below. Total Resistance 202 ww D1 D2 D3 20 www

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Q: 3. Determine the total current I, and total power PT. conductance G₁, total

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Q: inverse Laplace

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Q: Determine the total charge transferred over the time interval of 0 ≤ t ≤ 10s when i(t) = ½ t A.

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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.