Reference no: EM13865857
Part A:
Three impedances Z1 = 3 + j4Ω, Z2 = 6 + j0Ω and Z3 = 2 + j5 Ω are to be connected to a three-phase, 400V 4-wire supply, with phases A, B and C and neutral connection N as follows:
Z1 between A and N
Z2 between B and N
Z3 between C and N
(a) Sketch a diagram showing how the three loads would be connected to the supply.
(b) Calculate the magnitude of the phase voltage
(c) Calculate the magnitude and phase of all line currents
(d) Calculate the magnitude and phase of the neutral current
(e) Calculate the total active power for the 3-phase load
Part B:
The two impedance Z1 and Z2 given in Part A are now disconnected from the three-phase, 400V- wire supply of Part A, and are reconnected in parallel across a 1-phase, 230V, 50Hz sinusoidal voltage source.
For the resulting single-phase circuit:
a. Calculate the magnitude and phase of the currents in the impedances Z1 and Z2, using the Current Division Rule.
b. Calculate the magnitude and phase of the supply current.
|
Which topic of conversation makes you uncomfortable
: Which topic of conversation makes you uncomfortable? What is the topic? Do you know why you find it difficult to talk about this topic? What do you do when you become uncomfortable during a conversation? Do you withdraw? Do you try to change the to..
|
|
What is the worst-case net present value
: An investment under consideration has a payback of eight years and a cost of $865,900. Assume the cash flows are conventional. If the required return is 10 percent, what is the worst-case Net Present Value?
|
|
Conduct a swot or appreciative inquiry analysis
: Analyzing Organizations- Conduct a SWOT or Appreciative Inquiry (AI) analysis and Evaluate the organization from multiple sustainable perspectives, including financial considerations, positive community outcomes, and innovation
|
|
What is a firms intrinsic value and its current stock price
: What is a firm's intrinsic value? its current stock price?is the stocks "true" long run value more closely related to its intrinsic value or to its current price?
|
|
Calculate the magnitude of the phase voltage
: Calculate the magnitude of the phase voltage-Calculate the magnitude and phase of all line currents-Calculate the magnitude and phase of the neutral current
|
|
Compute the gross profit percentage for the current year
: Compute the gross profit percentage for the current and previous years. Round the percent-ages to one decimal place. Are the current year results better, or worse, than those for the previous year? Compute the net profit margin for the current and pr..
|
|
Explanation of the implications of globalization
: An explanation of the implications of globalization on organizational strategic planning. Include how organizational success and stakeholder involvement may lead to a sustainable future for the organization and community
|
|
The international debt crisis-causes
: Too-Big-To-Fail doctrine-purposes and consequences and or The international debt crisis-causes, consequences, and remedies Case Projects
|
|
Bryant Corporation is in the process of negotiating a loan
: Bryant Corporation was incorporated on December 1, 2009, and began operations one week later. Before closing the books for the fiscal year ended November 30, 2010, Bryant's controller prepared the following financial statements:
|