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Q. Three single-phase 100-kVA, 2400:240-V, 60-Hz transformers (each ofwhich has an equivalent series impedance of 0.045+j0.16 referred to its low-voltage side) are connected to form a three phase, 4160:240-V transformer bank, which in turn is connected to a three-phase feeder with an impedance of 0.5 + j1.5 /phase. When the three-phase transformer bank delivers 250 kWat 240Vand 0.866 lagging power factor, determine:
(a) The transformer winding currents.
(b) The sending-end voltage (line to line) at the source.
Why is the signal first attenuated and then amplified?
Explain the Sequential Circuits? The Logic circuits whose outputs, at any instant of time, depends not merely the present input but as well the past output called sequential ci
Q. Explain about Junction FET? The JFET is a three-terminal, voltage-controlled current device, whereas the BJT is principally a three-terminal, current-controlled current devi
Why dummy coils are used in generators
To design a VI that can be used to show how the voltage falls across a resistor in a simple CR circuit when excited by a step function. The title of the VI will be Capacitor Res
Q. A transformer is rated 10 kVA, 220:110 V (rms). Consider it an ideal transformer. (a) Compute the turns ratio and the winding current ratings. (b) If a 2-load resistance
Considering the circuit shown in Figure (a), find the state of operation and operating point if the BJT has β = 80 and other typical values of a silicon BJT at room temperature.
How to work ring counter?
Explain multimeter A multimeter, or universal instrument, may be used to measure voltage, current and resistance.
Discuss the various types of memory devices that you are familiar with. All of the memory utilized as main store in a modern computer is implemented like semiconductors fabrica
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