Forgot Password?
Mobile number is now mandatory for the security of your account.
We've sent you a verification code on your mobile number. Please enter it here to set a new password.
We've sent you a verification code on your mobile number or email address. Please enter it here to set a new password.
(a) Explain the operation of single phase fully controlled converter with R-L load.
Explain the operation of a Voltage commutated chopper with relevant waveforms. Discuss the design of its commutating elements.
(b) Give a comparison between VSI and CSI.
(a) Explain the operation of a four quadrant chopper.
Explain the operation of a 3-phase voltage source inverter in 120o conduction mode. Draw phase and line Voltages waveform across the load.
Explain the operation of a single phase MC Murray inverter with relevant waveform. Explain the Design of commutation circuit.
(b) A single phase ac voltage controller comprising a thyristor and a diode supplies a purely resistive load of 10 ohms from a 230V, 50 Hz supply. Calculate:
(i) r.m.s value of load voltage (ii) average and r.m.s value of thyristor current
The delay angle of thyristor is 90o.
(a) Explain the principle of operation of a single phase to single phase step up cycloconverter with relevant waveforms.
(b) Explain the working of a single phase dual converter with circulating current mode.
(a) Explain the function of snubber circuit.
(b) Explain the operation of RC half wave firing circuit with relevant waveforms.
(a) Explain the parallel operation of thyristors.
(b) Explain the operation and applications of GTO.
(a) Explain the operation and characteristic of IGBT.
(e) Explain the principle of step up DC chopper.
(d) What are the advantages of PWM inverters?
(c) Enumerate the applications of a cycloconverter.
(b) Explain the role of feedback diodes in an inverter.
Congratulations! Your trial of
is now active.
Let's catch up on a Zoom call and I'll help you craft a killer career plan! Bring your own coffee.
Sourabh Bajaj
