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Q. Two balanced, wye-connected, three-phase loads are in parallel across a balanced, three - phase 60- Hz, 208-Vsupply. The first load takes 12 kWat 0.6 power factor lagging, and the second load takes 15 kVA at 0.8 power factor lagging.
(a) Draw the power triangle for each load and for the combination.
(b) What is the total kVA supplied?
(c) Find the supply power factor, and specify whether lagging or leading.
(d) Compute the magnitude of the current drawn by each load and drawn from the supply.
(e) If wye-connected capacitors are placed in parallel with the two loads in order to improve the supply power factor, determine the value of capacitance in farads in each phase needed to bring the overall power factor to unity.
The spectrum analyser plots amplitude against frequency, in other words it shows signals in the frequency domain. The spectrum analyser has the same trigger options as the oscillos
design using softwares (LEdit7, LTspice) the project has many aspects and I would like you to check them on the website with my personal password. in the project specifications (d
With neat diagrams explain the configuration of a step-by-step switching system. Schematic diagram for such an exchange is given in Figure. Every subscriber is connected to a
Q. Design a water supply scheme for a station, adopting the following data - a) Source of water - River flow at a distance of 1 km. b) Requirement of water - 1 lack gallons p
Q. A current i(t) = 20 cos(2π × 60)t A fows through a wire. Find the charge flowing, and the number of electrons per second that are passing some point in the wire.
The processing speed stated on DATA BUS WIDTH.
Define the aircraft axes & degrees of freedom. Analyse the different maneuvers that can be done by an aircraft.
Q. A 300-kVA transformer has a core loss of 1.5 kW and a full-load copper loss of 4.5 kW. (a) Calculate its efficiency corresponding to 25, 50, 75, 100, and 125% loads at unity
DESIGN A WIEN OSCILLATOR THAT OSCILLATE AT 25KHZ
Q. Explain about Subscriber Loop System? Subscriber Loop System:Each subscriber in a telephone network is connected normally to the nearest switching office by a dedicated pair
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