Question

In: Electrical Engineering

[BI A 30kVA, 3000/1 1 0 V transfomier, the following experimental data was obtained: 0.C test:...

[BI A 30kVA, 3000/1 1 0 V transfomier, the following experimental data was obtained:
0.C test: 3000 V, 0.5 A,
350 W
S.C test: 150 V, 10 A,
500 W
Calculate (a) the efficiency at full load, 0.8p.f. (b) the kVA output at which the efficiency
is ma)cimum (comment on the obtained resu]ts)f 1 5 Marks]

Solutions

Expert Solution

Dear student I hope it will help you. Please don't forget to give thumbs up. Thank you


Related Solutions

The following data are obtained at 0°C in a constant-volume batch reactor using pure gaseous Time,...
The following data are obtained at 0°C in a constant-volume batch reactor using pure gaseous Time, min 0 2 4 6 8 10 12 14 ∞ Partial pressure of A, mm Hg 760 600 475 390 320 275 240 215 150 The stoichiometry of the decomposition is A → 2.5 R. Find a rate equation which satisfactorily represents this decomposition.
1.Determine whether S spans V . Justify your answers. V = C ^0 [−1, 1] (the...
1.Determine whether S spans V . Justify your answers. V = C ^0 [−1, 1] (the vector space of continuous functions on [−1, 1]) and S = {1, t, t2 , t3 , . . . }. 2.Let S be a set in a vector space V and v any vector. Prove that span(S) = span(S ∪ {v}) if and only if v ∈ span(S).
For the reaction A + B + C → D The following data were obtained at...
For the reaction A + B + C → D The following data were obtained at constant temperature: Trial Initial [A] (mol/L) Initial [B] (mol/L) Initial [C] (mol/L) Initial Rate (mol/L . s) 1 0.2790 0.1670 0.0334 1.190 2 0.5580 0.1670 0.0334 2.381 3 0.5580 0.3340 0.0334 9.524 4 0.2790 0.1670 0.0668 1.190 1. What is the order with respect to each reactant? (Enter the order for A as Answer 1, that for B as Answer 2, and that for...
Heat transfer In a test in a double tube heat exchanger the following data are obtained...
Heat transfer In a test in a double tube heat exchanger the following data are obtained For hot fluid Flow = 11.6 gal / sec Outlet temperature = 30.1 ° C Inlet temperature = 32 ° C For cold fluid Flow 11gal / min Outlet temperature 25.1 ° C Inlet temperature 24.2 ° C For the fluid consider k = 0.49 w / mK cp = 3729.95 J / kgK Prandtl number = 14.29 Density = 1035.02kg / m3 Get:...
Heat transfer in a test in a double tube heat exchanger the following data are obtained...
Heat transfer in a test in a double tube heat exchanger the following data are obtained For hot fluid Flow = 11.6 gal / sec Outlet temperature = 30.1 ° C Inlet temperature = 32 ° C For cold fluid Flow 11gal / min Outlet temperature 25.1 ° C Inlet temperature 24.2 ° C For the fluid consider k = 0.49 w / mK cp = 3729.95 J / kgK Prandtl number = 14.29 Density = 1035.02kg / m3 Get:...
verify that the function det has the following properties 1. det(... ,v,..., v,...)=0 2. det(...,cv+dw,...)=c*det(...,v,...)+d*det(...,w,...) 3....
verify that the function det has the following properties 1. det(... ,v,..., v,...)=0 2. det(...,cv+dw,...)=c*det(...,v,...)+d*det(...,w,...) 3. use the above properties and normalization to prove that A= det(...,v+cw,...w,...)=det(...,v,...,w,...) B=det(...,v,...,w,...)= (-1)*det(...,w,...,v,...) and C= det [diag (λ1, ... , λn ) ] = Πiλi
For a hypothesis test, where ?0:?1=0 and ?1:?1≠0, and using ?=0.01 , give the following:
Consider the data set below. x 22 99 88 44 99 99 y 66 44 88 55 77 11 For a hypothesis test, where ?0:?1=0 and ?1:?1≠0, and using ?=0.01 , give the following: (a) The test statistic ?= (b) The degree of freedom ??= (c) The rejection region |?|> The final conclustion is A. There is not sufficient evidence to reject the null hypothesis that ?1=0 β 1 = 0 . B. We can reject the null hypothesis that...
4. The following data were obtained from a creep test for a specimen having an initial...
4. The following data were obtained from a creep test for a specimen having an initial gage length of 2.0 in. and an initial diameter of 0.6 in. The initial stress applied to the material is 10,000 psi. The diameter of the specimen after fracture is 0.52 in. Length Between Gage Marks ( (in.) Time (h) Strain (in./in.) 2.004 0 0.002 2.01 100 0.004 2.02 200 0.006 2.03 400 0.008 2.045 1000 0.012 2.075 2000 0.020 2.135 4000 0.035 2.193...
In a study on air pollution carried out by an experimental station, we obtained the following...
In a study on air pollution carried out by an experimental station, we obtained the following amounts of soluble benzene, suspended in organic in micrograms per m3 , in different samples of air: 2.28, 1.9, 3.32, 2.68, 2.57, 2.57, 0.928, 1.22 Assuming that the sampled population is approximately normal, construct a confidence interval at the level 90% for the corresponding real average.
For the reaction        A(g) + B(g) + C(g)  " D(g)     the following data were obtained at 25°C....
For the reaction        A(g) + B(g) + C(g)  " D(g)     the following data were obtained at 25°C. Exp’t Initial [A] (M) Initial [B] (M) Initial [C] (M) Initial Rate (mole∙L–1s–1) 1 0.0500 0.0500 0.0100 6.25 x 10–3 2 0.1000 0.0500 0.0100 1.25 x 10–2 3 0.1000 0.1000 0.0100 5.00 x 10–2 4 0.0500 0.0500 0.0200 6.25 x 10–3 5 0.2000 0.3000 0.3000 ????? Which choice gives correct kinetics information for this reaction?   Which choice is closest to the rate constant for this...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT