NLC Technical Quiz 7

Consider the following statements about Bode Plot.

1) The phase angle plot in Bode diagram is not affected by the variation in the gain of the system.

2) Transportation log can be conveniently handled by Bode plot.

3) Absolute and relative stability of only minimum phase systems can be determined by Bode plot.

Which of the above statement is/are correct?

Find the gain margin of a unity negative feedback control system with open loop transfer function

A 20 kVA, 2000/200 V, Δ - Y distribution transformer has resistance and reactance of 0.03 p.u. and 0.09 p.u. respectively. The phase impedance of the transformer referred to the primary side is

Q. A 220 C DC shunt motor is running at 1200 rpm and drawing a current of 10A. Its armature winding a resistance is 1Ω. It is brake by plugging. The resistance to be connected in series with armature to restrict armature current to 10A, is-

The voltage V_o in the circuit given below is:

Dual circuit represents that:

Which of the following statements is not correct about GTO?

A 100 MVA, 33 kV, 60 Hz 4 pole synchronous generator has inertia constant H = 8 sec. If the machine was initially delivering 60 MW and suddenly input is raised by 10 MW then initial acceleration is

Series capacitor compensation is used in transmission lines to

The power of signal x(t) is whose Fourier series coefficients C_n is represented below is