3. Two transformers rated at 250 kVA, 2.4 kV/600 V are connected in open-delta to supply a load of 400 kVA a. Are the transformers overloaded? b. What is the maximum load the bank can carry on a continuous basis?
In the circuit given below, R = 50 ?, V = 20 V, and L = 1/4 H. tC 1 2u(t) A
Is find your current 90 kV + Is 60 kV 30 kV 3 V
Consider an RLC series circuit with R = 600 Ω, L = 3 H, C = 4μF, generator voltage V = 20 v, frequency= 60 hz. Find everything that was found for illustration problem above. That means parts (a) thru (i)- 9 parts to the problem.
Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye- delta on a 12.47 kv, 3-phase line. If the load is 450 kVA, calculate: a. The currents in the incoming and outgoing transmission lines b. The currents in the primary and secondary windings 1. sratod t 200 w 3o0 v/6oO V 60 Hz are used to raise the Three single-phase transformers rated at 250 kVA, 7200 V/600 V, 60 Hz, are connected in wye-...
Question # 1 - In a series R-L circuit, a voltage of 10 V at 50 Hz frequency produces a current of 750 mA. In the same circuit with same magnitude of applied voltage with a frequency of 75 Hz produces a current of 500 mA. Find out the values of R and L in the circuit. Question # 2 - Derive the equations of active, reactive and apparent powers in a series R-L circuit with sinusoidal AC supply. Question...
Consider an RLC series circuit with R = 600 Ω, L = 3 H, C = 4μF, generator voltage V = 20 v, frequency= 60 hz. Find a) the inductive impedance XL, b) capacitive impedance Xc , c) Total impedance Z, d) Line current I , e) Voltage drops VR , VL, ,Vc f) combination voltage VRL , and VLc , g) phase angle φ , h) resonant frequency f0 , i) Power dissipated by circuit.
L 10000 L 0000 v(t) R С R LOAD M M In the above v(t)=Acos(176), R=3 Ohms, L= 14 Henries and C=20 Farads. Find the required impedance of the load that will lead to maximum average power transfer. Lütfen birini seçin: O a. 3,00-j(-0,04) Ob. 3,00+j(-0,04)
UTORIAL PROBLEMS 1 A 150 km 34, 110 kV, 50 Hz transmission line transmits a load of 40,000 kw at 0-8 pf lagging at the receiving end. Resistance/km/phase-0-15Ω ; reactance/km/phase :06 Ω; susceptance km phase 10 S. Determine (i) the A, B, C and D constants of the line (ii) regulation of the line. [(i) A = D = 0.968 <1° ; B = 92-8 <7.5°Ω ; C 0.00145く90-5° S (ii) 33-5%)!
a) The DC power supply below is connected to a 110 V RMS, 50 Hz AC mains. The transformer has turns ratio N, : N2 = 10 : 1, and the diodes have forward voltage drop 0.7 V, and the regulator has dropout voltage 1.8 V. We require V 5 V. OUT =2 A GND 110 V rms O A R V Va VC 50 Hz N2 N i. Given the transformer has turns ratio Nį: N2 = 10: 1...