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Q4) A large magnet load consists of an inductance of 18.5 H and resistance of 50 2 is to be supplied from a 400 V, 50 Hz, three-phase source through a fully controlled full-wave, three-phase rectifier bridge as shown in Fig.4. It is required to: (a) Draw waveform for Vdc and Idc at firing angle of 60° (b) The power delivered to the magnet. (c) The maximum d.c. voltage Vdcmax and maximum current Idcmax which can be supplied from this rectifier, (d) The delay angle a is required to give a magnet current of 4A. TI A T5 T3 Z P(r) 3-phase 400V 95) (1) R DC +- Magnet Vac Load T4 T2 A L T6 Z Fig.4

Q4) A large magnet load consists of an inductance of 18.5 H and resistance of 50 2 is to be supplied from a 400 V, 50 Hz, three-phase source through a fully controlled full-wave, three-phase rectifier bridge as shown in Fig.4. It is required to: (a) Draw waveform for Vdc and Idc at firing angle of 60° (b) The power delivered to the magnet. (c) The maximum d.c. voltage Vdcmax and maximum current Idcmax which can be supplied from this rectifier, (d) The delay angle a is required to give a magnet current of 4A. TI A T5 T3 Z P(r) 3-phase 400V 95) (1) R DC +- Magnet Vac Load T4 T2 A L T6 Z Fig.4

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q4) A large magnet load consists of an inductance of 18.5 H and resistance of 50 2 is to be supplied from a 400 V, 50 Hz, three-phase source through a fully controlled full-wave, three-phase rectifier bridge as shown in Fig.4. It is required to: (a) Draw waveform for Vdc and Idc at firing angle of 60° (b) The power delivered to the magnet. (c) The maximum d.c. voltage Vdcmax and maximum current Idcmax which can be supplied from this rectifier, (d) The delay angle a is required to give a magnet current of 4A. TI A T5 T3 Z P(r) 3-phase 400V 95) (1) R DC +- Magnet Vac Load T4 T2 A L T6 Z Fig.4
Transcribed Image Text:Q4) A large magnet load consists of an inductance of 18.5 H and resistance of 50 2 is to be supplied from a 400 V, 50 Hz, three-phase source through a fully controlled full-wave, three-phase rectifier bridge as shown in Fig.4. It is required to: (a) Draw waveform for Vdc and Idc at firing angle of 60° (b) The power delivered to the magnet. (c) The maximum d.c. voltage Vdcmax and maximum current Idcmax which can be supplied from this rectifier, (d) The delay angle a is required to give a magnet current of 4A. TI A T5 T3 Z P(r) 3-phase 400V 95) (1) R DC +- Magnet Vac Load T4 T2 A L T6 Z Fig.4
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