A single-phase ac switch with configuration in Fig. 5-1a is used between a 120-V 60- Hz main supply and an inductive load. The load power is 15 kW at a power factor of 0.90 lagging. Determine the voltage and current ratings of the thyristors. Determine the firing angles of thyristors T, and T, in Prob. 5-1.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
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ISBN:9781337399128
Author:Russell E. Smith
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Chapter17: Commercial And Industrial Air-conditioning Control Systems
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I need a short answer Question 5-1. and 5-2. Circuit also give below Need urgent thanks...
iT2
RL
Vo
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(a) Circuit
Transcribed Image Text:iT2 RL Vo V (a) Circuit
Electronics Circuits Devices and Applications 3E.pdf - Adobe Acrobat Reader DC (64-bit)
Sign Window Help
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H Rashid Power Ele... x
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PROBLEMS
5-1. A single-phase ac switch with configuration in Fig. 5-la is used between a 120-V 60-
Hz main supply and an inductive load. The load power is 15 kW at a power factor
of 0.90 lagging. Determine the voltage and current ratings of the thyristors.
5-2. Determine the firing angles of thyristors T, and T2 in Prob. 5-1.
5-3. A single-phase ac switch with configuration in Fig. 5-3a is used between a 120-V 60-
Hz main supply and an inductive load. The load power is 15 kW at a power factor
of 0.90 lagging. Determine the voltage and current ratings of diodes and thyristors.
5-4. A single-phase ac switch with configuration in Fig. 5-4a is used between a 120-V 60-
Hz main supply and an inductive load. The load power is 15 kW at a power factor
of 0.90 lagging. Determine the voltage and current ratings of the thyristor and diodes
in the bridge rectifier.
5-5. Determine the firing angles of thyristors T, in Prob. 5-4.
5-6. A three-phase ac switch with configuration in Fig. 5-5a is used between a three-phase
Transcribed Image Text:Electronics Circuits Devices and Applications 3E.pdf - Adobe Acrobat Reader DC (64-bit) Sign Window Help ols H Rashid Power Ele... x 153 / 602 PROBLEMS 5-1. A single-phase ac switch with configuration in Fig. 5-la is used between a 120-V 60- Hz main supply and an inductive load. The load power is 15 kW at a power factor of 0.90 lagging. Determine the voltage and current ratings of the thyristors. 5-2. Determine the firing angles of thyristors T, and T2 in Prob. 5-1. 5-3. A single-phase ac switch with configuration in Fig. 5-3a is used between a 120-V 60- Hz main supply and an inductive load. The load power is 15 kW at a power factor of 0.90 lagging. Determine the voltage and current ratings of diodes and thyristors. 5-4. A single-phase ac switch with configuration in Fig. 5-4a is used between a 120-V 60- Hz main supply and an inductive load. The load power is 15 kW at a power factor of 0.90 lagging. Determine the voltage and current ratings of the thyristor and diodes in the bridge rectifier. 5-5. Determine the firing angles of thyristors T, in Prob. 5-4. 5-6. A three-phase ac switch with configuration in Fig. 5-5a is used between a three-phase
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