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A three-phase 34.5-kV feeder supplying a 4-MVA load is protected by 80E power fuses in each phase, in series with a recloser. The time-current characteristic of the 80E fuse is shown in Figure.
Analysis yields maximum and minimum fault currents of 1000 and 500 A, respectively.
(a) To have the recloser clear the fault, find the maximum clearing time necessary for recloser operation.
(b) To have the fuses clear the fault, find the minimum recloser clearing time. Assume that the recloser operating time is independent of fault current magnitude.
Design the two-stage CMOS op amp in Fig. to provide a CMRR of about 72 dB. If all the transistors are operated at equal overdrive voltages of 0.15 V and have equal channel lengths, find the minimum required channel length. For this technology, / V..
Question: Build a truth table and a K-Map for this attached circuit?
Coastal Engineering and Modelling 6110ENG Assignments. In the second part of the assignment, the calibrated model will be applied to simulate the hydrodynamic conditions in the period of 1997-09-06 00:00 - 1997 -09-15 00:00, 9 days). Complete ..
The circuit of Fig. consists of an inverting bistable multivibrator with an output limiter and a noninverting integrator. Using equal values for all resistors except R7 and a 0.5-nF capacitor, design the circuit to obtain a square wave at the outp..
A purchase contract must have certain considerations to be legal. Which of the following is not one of these considerations?
to examine the relationship between fermenter design and operating conditions oxygen transfer capability and microbial
The isentropic turbine efficiency is 87%, and the condenser pressure is 1 lbf/in.2. Determine the heat transfer in the reactor and in the super heater to produce a net power output of 1000 Btu/s.
Using whatever numerical techniques appropriate determine a velocity versus time graph of his/her descent. Estimate the amount of free fall time that would be possible that would still allow full deployment of the parachute and a safe landing. Ign..
An inventor claims to have a heat engine producing mechanical power that extracts 25 kW of heat at 400 K and rejects 10 kW of heat at 200 K. Is this claim possible - Plot the heat collected in solar collector, heat loss in the storage, additional ..
topic quothow is the problem of ghg emissions represented in victorian transport policyquot ltbrgt ltbrgtwords1500
Using the table of parameter for the system substitute them into your expression for Y(S) and determine and plot your expression using scilab or matlab for y(t)
The methodology in summary form is to design and implement improvements to the nickel-iron battery. This is your basic methodology, which needs more detail in the type of tests you will perform.
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