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Q. Two balanced, three-phase, wye-connected loads are in parallel across a balanced three-phase supply. Load 1 draws a current of 20 A at 0.8 power factor leading, and load 2 draws a current of 30 A at 0.8 power factor lagging. For the combined load compute:
(a) The current taken from the supply and the supply power factor.
(b) The total real power in kW supplied by the source, if the supply voltage is 400 V.
What are the cautions to be taken before starting work on electrical installations? Ans: Before starting any electrical works on installations disconnect the power supply to
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Given the network in Figure, (a) Find the currents through resistors R 1 , R 2 , and R 3 . (b) Compute the voltage V 1 . (c) Show that the conservation of power is satisfi
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why is detecting the time of islanding relevant?
A button does some command in a program when it is clicked. Buttons generally have a 3-dimensional look, although you may have to move the mouse over the button for it to look 3D.
kindly send us the formula and C program for performance improvement of distribution system using HV/LV ratio. REGARDS ANUJ AGARWALA
Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min. (a) How many poles does the machine have? (b) Find the slip and t
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