Exercise 4 A single-phase controlled rectifier bridge consists of one SCR and three diodes feed R-load: a) Draw the circuit diagram of this bridge rectifier b) Sketch output voltage waveform for a firing angle a for the SCR and hence obtain an expression for the average output voltage under the assumption of constant current. Show the conduction of various components as well. c) Draw waveforms of current through TI, D1, D2 and D3 assuming constant load current. d) For an AC source voltage of 230 V, 50 Hz and firing angle of 45°, find the average output current and power delivered to 1000 resistor.

Exercise 4 A single-phase controlled rectifier bridge consists of one SCR and three diodes feed R-load: a) Draw the circuit diagram of this bridge rectifier b) Sketch output voltage waveform for a firing angle a for the SCR and hence obtain an expression for the average output voltage under the assumption of constant current. Show the conduction of various components as well. c) Draw waveforms of current through TI, D1, D2 and D3 assuming constant load current. d) For an AC source voltage of 230 V, 50 Hz and firing angle of 45°, find the average output current and power delivered to 1000 resistor.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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How is a solid-state diode tested? Explain.
Q/ A single-phase controlled rectiﬁer bridge consists of one SCR and three diodes feed R-load:a) Draw the circuit diagram of this bridge rectiﬁer.b) Sketch output voltage waveform for a ﬁring angle α for the SCR and hence obtain an expression for the average output voltage under the assumption of constant current. Show the conduction of various components as well.c) Draw waveforms of current through Tl, D1, D2 and D3 assuming constant load current.d) For an AC source voltage of 230 V, 50 Hz and ﬁring angle of 45°, ﬁnd the average output current and power delivered to 100Ω resistor.
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