Using 100MVA and 115KV as base values, express in per unit and percent values a. 110KV...
Use power base of 100MVA to change to per unit Consider the transmission system in figure 1 below Gen 1 Тx 2 Line 1 Gen 2 Tx3 Line 4 Line 3 R F Tx 1 Gen 3 Line 2 Figure 1 Impedance and winding details are:- Generators: Gen 1 132kV, Z=0+j12.5% on 25MVA Gen 2 132kV, Z= 0+j12.5% on 25 MVA 20KV, Z 0+j10% on 25 MVA A- connected windings Gen 3 Transformers Earthed Y windings (both sides) Earthed Y...
Butane, initially at 25°C, 1 atmosphere, reacts completely with stoichiometric air Calculate the 2 heating values for the fuel, and express them per unit mole of fuel and per unit mass of fuel. Butane, initially at 25°C, 1 atmosphere, reacts completely with stoichiometric air Calculate the 2 heating values for the fuel, and express them per unit mole of fuel and per unit mass of fuel.
01/26/18 03 Question (2 points) Express each of the following values in the base unit provided. 1st attempt Part 1 (1 point) 2.57 pg = Part 2 (1 point) 50.0km =
A generator is rated at 100MVA, 20kV, 60 Hz, 0.8 pf lagging and reactance of 10%. Compute the following: a) The generator per unit model if it is loaded at 50% b) The generator per unit model if it is loaded at 100% c) The number of poles in the generator if the shaft power is supplied at 1300 RPM
Express the following in one’s complement format using 8 bits: a. (‒46)base 8 : b. –(98)base 10 : c. ‒(011.1010)base 2 : d. (2 5/16)base 10 : e. (‒1 1011.10)base 2 :
Problem 1. Equipment ratings and per-unit reactances for the system shown in figure 1. are given as follows Using a 100-MVA, 230-kV base for the transmission lines, draw the per-unit sequence networks Consider the impact of ?-Y phase shifts Synchronous generators: G 100 MVA 25kV X1-X2 0.2Xo 0.05 G2100 MVA 13.8 kV X,-X2 0.2 Xo 0.05 Transformers: TI 100 MVA 25/230 kV Xi-X-Xo-0.05 T2 100 MVA 13.8/230 kV X-X2 = Xo 0.05 Transmission lines: TL 12 100MVA 230 kV X,=X2=0.1...
UUUUUUUse scriere. 10) 33 Consider figure 3.1 below and answer the questions that follow Z=2j Z=3x2, 20MVA 132/11kV Z =5% 2=2x2, 2=2=Z=4 Figure 3.1 3.3.1 Express all impedances in per unit (use a base of 100MVA) (10) 3.3.2 Calculate the single phase to ground fault current for a fault at busbar C (10) (show the equivalent sequence networks). Use an MVA base of 100MVA.
Calculate the per unit series reactance of a 400kV L12 tower strung with 2x700mm2 Araucaria bundled conductor. Use 100MVA base. Assume the GMR of a 61-stranded conductor to be 0.7720 times the nominal radius of the conductor. Ref. BSEN 50182:2001, Page 65, Table F.41. Bundle spacing 300mm 2.
Part A Constants What is the capacitance per unit length? Express your answer using two significant figures. A cylindrical capacitor has an inner conductor with a radius of 1.2 mm and an outer conductor with a radius of 3.2 mm. The two conductors are separated by vacuum, and the entire capacitor has a length of 3.2 m C/L Submit incorrect; Try Again; 2 attempts remaining Part B The potential of the inner conductor relative to that of the outer conductor...
18. Express 2.349 using base 10 blocks