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The load to a 3-phase supply comprises three similar coils connected in star. The line currents are 25A and the KVA and KW inputs are 20 and 11 resoectively.
Find
i)the phase and line voltages.
ii)the KVAR input and,
iii)resistance and reactance of each coil.
Explain what happens if R was chosen to be linear? Use the given values of resistances, line currents under the bus fault, CT ratios and relay setting. Explain what happens if, during normal operation (that is if there are no primary side faults),..
1. Zara Ellis, a college student is contemplating the following options for her 3-month summer break: (1) Take a summer course which will cost $700 and work half-time making $1,000 per month. (2) Work full time at the local dinner making $2,00..
For the three transistor configurations namely, the common-eitter, the common-collector, and the common-base, compare the voltage gain and the current gain for each configuration.
Resistance of Headlights, A 24-volt automotive battery is connected to two headlights, such that the two loads are in parallel
What are the rated current and internal generated voltage of this generator? What field current does this generator require to operate at the rated voltage, current, and power factor?
The energy density (that is, the energy per unit volume) at a point in a magnetic field can be shown to be B2/2μ, where B is the flux density and μ is the permeability. Using this result and Eq. (4 .10), show that the total magnetic field energy s..
What are the four characteristic parameters of transmission line? Which parameter is used to calculate the real loss? Which parameter is used to calculate the charging current? Which parameter is almost negligible and why?
A load operating at 6400 Vrms draws 56 A at a PF of0.812 lagging. Find: (a) the peak current in amperes (b) the instantaneous power at t=2.5 ms assuming an operating frequency of 60 Hz
A power company supplies 75 kW to an industrial load. The load draws 120 Arms from the transmission line. If the load voltage is 440 Vrms and the load power factor is 0.8 lagging, find the losses in the transmission line.
Implement this machine using the pointer-based technique and VHDL or SystemVerilog. Start by making the proper adaptations (using pointer(s)) in the state transition diagram. Create an array of constants to be placed at the output in states B and ..
1. What happens to both resolution and full-scale output when the reference voltage on a DAC is increased by 20% a. resolution gets better by 20%, output goes down by 20% b. resolution gets worse by 20%, output goes up by 20%
The venturi has a throat-to-inlet area ratio of 0.85. Calculate the maximum vacuum obtainable in the reservoir when the venturi is placed in an airstream of 90 m/s at standard sea level conditions.
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