Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A single-phase 10-kVA 480/120-V transformer is to be used as an autotransformer tying a 600-V distribution line to a 480-V load. When it is tested as a conventional transformer, the following values are measured on the primary (480-V) side of the transformer:
(a) Find the per-unit equivalent circuit of this transformer when it is connected in the conventional manner. What is the efficiency of the transformer at rated conditions and unity power factor? What is the voltage regulation at those conditions?
(b) Sketch the transformer connections when it is used as a 600/480-V step-down autotransformer.
(c) What is the kilovoltampere rating of this transformer when it is used in the autotransformer connection?
(d) Answer the questions in (a) for the autotransformer connection.
What is the frequency for a periodic signal with a period of 2.5 ns 2.5 GHz 250 MHz 4.0 GHZ 400 MHz 2. Which decimal number is equivalent to 25 10 25 31 32 3. Convert the following decimal negative numbers to their 8-bit, 2's complement formulatio..
The system must be capable of resolving two aircraft that are separated by 1.00 mile at a distance of 20 miles from the airport. Assuming the receiving dish is circular, what minimum dish diameter is required?
For the network of given figure: - Determine RT, - Calculate Va, - Find V1.- Calculate V2.- Determine I (with direction).
Derive a hazard-free realization (and show that it is hazard-free), of the function AC+BCD+A'B'D' using only 2-input NAND gates, assume inputs are available uncomplemented and complemented.
Referring to Fig. 1.25d, a µF capacitor is charged to 12 V and then connected across a resistor of 100 Ω.
After 10 min the process is stopped, and fresh water is poured into the tank at a rate of 8 gal/min, with the mixture again leaving at the same rate. Find the amount of salt in the tank at the end of an additional 10 min.
A resistor on a Wheatstone bridge is replaced with a strain gage which has a nominal resistance of 120 Ohms and a gage factor of 2.06. The remaining resistors on this quarter-bridge Wheatstone bridge circuit are 120 Ohm fixed resistors.
Supposed that the signal y(t) is low -pass filtered. The magnitud od the low pass filter is unity and the cut off frequency is Rz= 5000*pi rad/sec. Determine the value of the sampling period Ts according to the given information.
a 20 mH inductor with an internal resistance of 20 ohms is connected in series with a capacitor and a voltage source with a thevenin resistance of 60 ohms. a. what value of C will be needed to produce Wo = 6 krad/s
Laboratory measurements on a dc voltage source yield a terminal voltege 75V with no load connected to the source and 60V when loaded with a 20 Ohm resistor. A)what is the thevenin equivalent with respect to the terminals of dc voltage source
Calculate the carrier concentrations and the type of semiconductor if a pure silicon crystal at 300K is doped with 2.5×10^13 cm-3 boron atoms.
Determine the rms values of the currents Is, IR, and IL. - Plot is, iR, and iL versus time on separate plots. - Place e, is, iR, and iL on the same plot, and label accordingly.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd