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Three single-phase, two-winding transformers, each rated 450 MVA, 20 kV/288.7 kV, with leakage reactance Xeq = 0.10 per unit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit equivalent circuit if the low-voltage windings are connected
(a) in Δ with American standard phase shift,
(b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and exciting current are neglected.
Consider an M/M/1 queueing system. If the arrival rate increases, then the expected waiting time in the queue increases. Yes or No? Explain.
Identify 3 to 5 technology or telecom standards organizations and the role they play in the industry. Choose one organization to look into in more depth
Design a latest version of that where it can show exact level of the water in over head tank by using a seven segment display.
What is the use of HEC-HMS modelling in water supply system ,how we use it? what is the necessary input for the software?
Given a second class lever with a distance of 5' from the fulcrum to the effort and a distance of 33" from the resistance to the fulcrum, what is the maximum amount of weight that can be lifted with 25 lbs of effort?
Consider the ripple counter of Figure. Suppose that the flip- flops have asynchronous clear inputs. Show how to add gates so that the count resets to zero immediately when the count reaches six. This results in a modulo-six counter.
1) Which Boolean law is used to transform each of the following equations? a. B + (D + E) = (B + D) + E
Assuming α?1, neglecting ro, and assuming the current source to be ideal, derive an expression for the small-signal voltage gain A(s) ≡ Vo/Vsig that applies in the mid band and the low-frequency band. Hence find the midland gain AM and the lower 3..
Is the common iliac vein anterior or posterior to the femoral artery?
Sequence Diagram
Do some research on Nikola Tesla and write a 1200 word paper on his relationship to AC power. How has this man affected our daily lives, and has he received the recognition that he deserves?
An open-end mercury manometer is connected to a low-pressure pipeline that supplies a gas to a laboratory. Because paint was spilled on the arm connected to the line during a laboratory renovation, it is impossible to see the level of the manomete..
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