B (x, y, z) = X'Z+X'Y+YZ = (X@Y)' + X'Y(simplify equation)
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- Please help☹️ Give information about RE, RL and RLE loads. Write how loads are used in modelling.12- If Cu loss of a transformer at 7/8th full load is 4900 W, then its full- load Cu loss would be..watt. a- 5600 b- 6400 c-375 d-429 Q4) A.)Correct the wrong sentences if you find it in only four(4) of the following sentences: a) The magnetic field intensity is a vector quantity, perpendicular to the direction of field density vector. b) The eddy currents always tend to flow perpendicular to the flux. c) The arcas of the hysteresis loop is a measure of heat energy lost per cycle, so that choosing the hard magnetic material is better. d) In the short and open circuit test the core loss can be measured on either side of the transformer but the copper loss measured in the low voltage side. e) A transformer of voltage regulation (2.67%) is better than a transformer of (1.53%) and the regulation of ideal transformer is unity. B)Draw the single phase transformer equivalent circuit and the phasor diagram of the voltage drops in simplified primary terms parameters transferred to secondary…Full Sub-tractor: D (x, y, z) = XY'Z'+X'YZ'+XYZ+X'Y'Z = ZO(XEX) (simplify equation) B (x, y, z) = X'Z+X°Y+YZ = (XX)' + X'Y (simplify equation)
- Problem 5 Consider a three winding transformer with the following particulars: = Z₁ Z2 Z3 =0.02 + j0.08 £, V₂ = 400 V, 12 = 60/30° A, and I3 = 50/-40° A. Assume that V₂ is the reference phasor, calculate: The intermediate voltage Vo. a. b. The primary current I₁ and the primary voltage V₁. c. The tertiary voltage V3 referred to the primary side. d. The apparent powers and the power factors at the primary, secondary and tertiary terminals. e. The transformer efficiency.(8) 3. Full Sub-tractor: D (x, y, z) = XY'Z'+X'YZ'+XYZ+X'Y'Z= Ze (XeY) (simplify equation)For the circuit shown in figure, draw the oriented graph and write (i) tieset matrix, (b) cutest matrix -> tov
- 5) Choose the correct answer with the explain: a) The maximum power transferred to the load is satisfied at, 1. ZL=0 2. ZL=x 3. ZL=Z. F00Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage windings are connected in Y. (a) For the low-voltage side, connect the windings in , place the polarity marks, and label the terminals a, b, and c in accordance with the American standard. (b) Relabel the terminals a, b, and c such that VAN is 90 out of phase with Va for positive sequence.Consider Figure 2.9 of the text, Let the nodal equations in matrix form be given by Eq. (2.4. 1) of the text. A. The element Y11 is given by (a) 0 (b) j/l3 (c)j7 B. The element Y31 is given by (a) 0 (b) j5 (c) jl C. The admittance matrix is always symmetric square. (a) False (b) True
- What is the relation between length of span and sag?: a. sag is directly proportional to square of span b. sag is inversely proportional to squareroot of span C. sag is inversely proportional to square of span d. sag is directly proportional to squareroot of span* Draw the vectors representing the primary and secondary e.m.f. and determine the phasor group of the transformer with a given type of connection, comparing the angle between e.m.f. of the corresponding terminals. A BWith the help of a vector diagram, explain the significance of the following quantities in the open circuit and short-circuit tests of a transformer (a) power consumed (b) input voltage (c) input current.