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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.
Q. What is Enhancement MOSFETS? Figure illustrates the cross-sectional structure of an n-channel enhancement MOSFET and its symbol showing as a normally off device when used fo
find the net value of power if an average value of energy is assumed to be $0.05/KWh, the capacity value is $30/kw-yr ...
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Q. Write short notes on the Stability Factor of Biasing circuits. The degree of success achieved in stabilizing Ic in the face of variations in Ico is expressed in terms of sta
breifly explain dual trace cro
if a resistor is present between 2 branches in such way that its polarities are different to compare with one another so how we choose polarity of that resistor
Composition of MOSFET In a test pattern the Photomicrograph of two metal-gate MOSFETs. Probe pads for two gates and three source or drain nodes are entitled.Generally the se
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Torque-Speed Characteristics of 3-Phase Induction Motors Because the torque-slip characteristic is one of themost important aspects of the inductionmotor, we will now develop a
Question: A DC, separately excited motor is supplied from a 240-V source. When the motor is unloaded, it draws 1A of current from the source. When the motor is loaded, it draws
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