A transmitter and receiver are connected using a cascaded pair of transmission lines. At the operating frequency, line 1 has a measured loss of 0.2 dB/m, and line 2 is rated at 0.3 dB/m. The link is composed of 30 m of line 1 joined to 20 m of line 2. At the joint, a splice loss of 2 dB is measured. If the transmitted power is 120 mW, what is the received power?

If the maximum and minimum voltages on a transmission line are 4 V and 2 V, respectively, for a typical load, VSWR is (A) 1  (B) 0.5  (C) 2  (D) 8

A single-phase transmission line consisting of two conductors, the radius of each conductor is 0.4 cm, the distance between the conductors is three and half meters and the height above ground is eight 1-The capacitance in uF/km without effect of ground is 2-The capacitance in pF/km with effect of ground is

Q) A source of 10 V and frequency 1000 KHz with internal resistance of 10 2 is connected to the sending end of a transmission line which can be represented by a resistance of 70 Q in series with capacitance of 0.001 uF connected across the line at the receiving end. An inductive load of inductance 0.002 H and resistance 100 is connected across the receiving end of the line. Determine the load current.

1) The AC bridge shown below in the figure has an Z₁ = 1009 + j2009, Z₂ = 600N - j300N, Z3 = 50092 and Z4= unknown. Determine the value of unknown in CD arm and specified its elements. B Z₁ Z₂ A Z3 D Z₁

6.4. The line constants of a transmission line are A= 0.9301|0.98° and B= 14124 8187 ohm. The load at the receiving end is 60 MVA, 50 Hz, 0.8 pf lagging. The supply voltage is 220 kV. Calculate the load voltage. Ans. 202.2 kV dmittano0

A sinusoidal voltage wave is propagating on a low loss transmission line. The voltage as a function of position appears as shown below. From this plot, the phase constant B= Voltage 25, 20 15 10 5 -5 -10 -15 -20 -25 10 20 30 40 50 60 70 80 90 100 Meters Volts

A 60-2 transmission line is connected to a 75-2 resistive load. If the incident voltage is 5 V rms, then the reflected voltage is: a) -1.026 Vrms. b) -0.832 Vrms. c) 0.556 Vrms. d) 1.569 Vrms. e) 2.320 Vrms.

T5. A typical line has the following parameters: A = D = 0.96/1.0° and B = 100 280° Q If the line supplies a load of 30 MW at 0.8 pf lag, 110 kV, the voltage regulation of the line is %3D (a) 15.5% (b) 18.24% (c) 19.61% (d) 20.78% OCopyright: Sut

Three lossless lines are connected as shown in the figure below. Determine the input impedance. a/2 2/4 3A/4 Z,,= 500 Z= 1000 Zg= 750 Z= 60-j40 Q "03