In the single-phase power system below, determine the voltage, Vab, and current, Iab, being received by the load, 10 + j15 Ω. Answer Format:: "Vab = XX.XXXX cis XX.XX V"  "Iab = XX.XXXX cis XX.XX A"

Q: Using the Ohmic Reactance method, Calculate: 1. Total impedance in 2 at 1000 V (use the table to…

A: 1) The 3-phase system is given as Since, prior to the fault, the system was in No-load condition.…

Q: T2 Generator 480 V Line Load Zz = 1.5 + j 102 480/14,400 V 1000 kVA R = 0.010 pu X = 0.040 pu…

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Q: For the system of Problem 9.11, compute the fault current and voltages at the fault for the…

A: Types of faults at 'F' are a) Single line to ground b) Line to line through fault impedance c)…

Q: The 168-kVA balanced load depicted in the following circuit is supplied by a three-phase…

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Q: 2. A three phase delta connected balanced resistive load is connected to a three phase Y connected…

A: Given: A three-phase delta-connected balanced resistive load is connected to a three-phase…

Q: Consider a simple positive phase sequence, three-phase, three-wire system operated at 50 Hz and with…

A: In this question, we need to determine the power supplied by the three-phase source. Three phase…

Q: An inductor of 0.3 H and resistance 60 ohms is connected between each line and the neutral of 50 Hz…

A: In this question, we need to determine the current in each line and total power by the system. We…

Q: 3. What must be the speed of a six-pole 25-Hz synchronous generator? -a) 500 rpm b) 900 грm c) 1200…

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Q: E) I/resistor on the load is a) 2A b) 4A c) 6.93A d) 12A F) I-line on the low side is a) 2A b) 4A c)…

A: given high side voltage is 480 volts  so coil voltage on the primary side is 240(as they are in…

Q: A 3.3kV, star connected alternator has a transient reactance of 1Ω per phase and negligible winding…

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Q: A microgrid in North America (60 Hz) consists of three synchronous generators with the following…

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Q: Stery readings, calculate the complex impedance of the mystery component. Where X and Y are the last…

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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.