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Q. A 75-kVA, 230/115-V, 60-Hz transformer was tested with these results:
• Open-circuit test: 115 V, 16.3 A, 750 W
• Short-circuit test: 9.5 V, 326 A, 1200 W
Determine:
(a) The equivalent impedance in high-voltage terms.
(b) The voltage regulation at rated load, 0.8 power factor lagging.
(c) The efficiency at rated load, 0.8 power factor lagging, and at half-load, unity power factor.
(d) The maximum efficiency and the current at which it occurs.
The aim of this project is to design, construct and build a motorised base driven by two small dc motors. The motor drives are two H-bridges. The switching devices in these bridges
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Q. From a three-phase, 60-Hz system, through a motor-generator set consisting of two directly coupled synchronous machines, electric power is supplied to a three-phase, 50-Hz syste
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dc to ac converter by IBGT
1) Study the CPLD Design Project Brief to gain an understanding of the project, and the System Specification, Circuit Description, Pre-processing and Post-processing Requirements f
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Ask question #Minimum 10] In the system shown in Figure 4-1, the rated voltage of the line is 110kv, and the conductors are all LGJ-120 type. The parameters are: r1=0.21O/km,x1=0
What do you understand by solid modeling and wireframe modeling in CAD systems? Explain and compare the both modellings. Describe the following 1. Boundary representation 2.
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