Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > In a single phase full converter fed by a sou...
Start Learning for Free
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap is
- a)1
- b)2
- c)3
- d)4
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
In a single phase full converter fed by a source having inductance, th...
Explanation:
Single Phase Full Converter:
A single phase full converter is a power electronic device that converts alternating current (AC) to direct current (DC) using thyristors. It consists of four thyristors connected in a bridge configuration along with a source and a load.
Source with Inductance:
In this case, the source has an inductance. The presence of inductance causes the current flowing through the source to lag behind the voltage due to the energy stored in the inductor.
Conduction Modes:
During the operation of a full converter, there are four possible conduction modes depending on the firing angles of the thyristors. These modes are:
1. Mode 1: T1 and T4 conducting
2. Mode 2: T2 and T3 conducting
3. Mode 3: T1 and T2 conducting
4. Mode 4: T3 and T4 conducting
Overlapping:
During the transition from one conduction mode to another, there is a brief period of overlap where two thyristors conduct simultaneously. This overlap is necessary to ensure a smooth transition of current from one thyristor to another.
Number of Thyristors Conducting During Overlap:
In a single phase full converter fed by a source with inductance, the number of thyristors conducting during overlap is four (Option D). This is because in each conduction mode, there are two thyristors conducting, and during the transition from one mode to another, both pairs of thyristors overlap and conduct simultaneously.
Conclusion:
In a single phase full converter fed by a source with inductance, all four thyristors conduct during the overlap period between conduction modes.
Single Phase Full Converter:
A single phase full converter is a power electronic device that converts alternating current (AC) to direct current (DC) using thyristors. It consists of four thyristors connected in a bridge configuration along with a source and a load.
Source with Inductance:
In this case, the source has an inductance. The presence of inductance causes the current flowing through the source to lag behind the voltage due to the energy stored in the inductor.
Conduction Modes:
During the operation of a full converter, there are four possible conduction modes depending on the firing angles of the thyristors. These modes are:
1. Mode 1: T1 and T4 conducting
2. Mode 2: T2 and T3 conducting
3. Mode 3: T1 and T2 conducting
4. Mode 4: T3 and T4 conducting
Overlapping:
During the transition from one conduction mode to another, there is a brief period of overlap where two thyristors conduct simultaneously. This overlap is necessary to ensure a smooth transition of current from one thyristor to another.
Number of Thyristors Conducting During Overlap:
In a single phase full converter fed by a source with inductance, the number of thyristors conducting during overlap is four (Option D). This is because in each conduction mode, there are two thyristors conducting, and during the transition from one mode to another, both pairs of thyristors overlap and conduct simultaneously.
Conclusion:
In a single phase full converter fed by a source with inductance, all four thyristors conduct during the overlap period between conduction modes.
Free Test
FREE
| Start Free Test |
Community Answer
In a single phase full converter fed by a source having inductance, th...
Introduction:
In a single phase full converter, thyristors are used to convert AC input voltage into DC output voltage. The converter is fed by a source having inductance, which affects the operation of the thyristors. During the overlap period, certain thyristors conduct to maintain a continuous flow of current.
Explanation:
During the operation of a single phase full converter, the input voltage is applied to the converter through a series inductance. This inductance causes a time delay in the voltage waveform, resulting in a phase shift between the input voltage and the thyristor firing angles.
Overlap period:
The overlap period is the time duration when both the positive and negative thyristors are conducting simultaneously. During this period, the output current flows through both the positive and negative thyristors.
Number of thyristors conducting:
The number of thyristors conducting during the overlap period depends on the firing angles of the thyristors and the phase shift caused by the inductance.
Case 1: No overlap
If there is no overlap, i.e., the firing angles of the positive and negative thyristors do not overlap, only one thyristor conducts at a time. This occurs when the phase shift caused by the inductance is such that the conducting positive thyristor turns off before the negative thyristor turns on.
Case 2: Overlap
If there is an overlap, i.e., the firing angles of the positive and negative thyristors overlap, more than one thyristor conducts at a time. This occurs when the phase shift caused by the inductance is such that the conducting positive thyristor turns off after the negative thyristor turns on.
Explanation of the correct answer:
In the given question, the correct answer is option 'D', which states that four thyristors conduct during the overlap period. This means that both the positive and negative thyristors conduct simultaneously.
Conclusion:
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during the overlap period depends on the firing angles and the phase shift caused by the inductance. In the case of four thyristors conducting, both the positive and negative thyristors conduct simultaneously during the overlap period.
In a single phase full converter, thyristors are used to convert AC input voltage into DC output voltage. The converter is fed by a source having inductance, which affects the operation of the thyristors. During the overlap period, certain thyristors conduct to maintain a continuous flow of current.
Explanation:
During the operation of a single phase full converter, the input voltage is applied to the converter through a series inductance. This inductance causes a time delay in the voltage waveform, resulting in a phase shift between the input voltage and the thyristor firing angles.
Overlap period:
The overlap period is the time duration when both the positive and negative thyristors are conducting simultaneously. During this period, the output current flows through both the positive and negative thyristors.
Number of thyristors conducting:
The number of thyristors conducting during the overlap period depends on the firing angles of the thyristors and the phase shift caused by the inductance.
Case 1: No overlap
If there is no overlap, i.e., the firing angles of the positive and negative thyristors do not overlap, only one thyristor conducts at a time. This occurs when the phase shift caused by the inductance is such that the conducting positive thyristor turns off before the negative thyristor turns on.
Case 2: Overlap
If there is an overlap, i.e., the firing angles of the positive and negative thyristors overlap, more than one thyristor conducts at a time. This occurs when the phase shift caused by the inductance is such that the conducting positive thyristor turns off after the negative thyristor turns on.
Explanation of the correct answer:
In the given question, the correct answer is option 'D', which states that four thyristors conduct during the overlap period. This means that both the positive and negative thyristors conduct simultaneously.
Conclusion:
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during the overlap period depends on the firing angles and the phase shift caused by the inductance. In the case of four thyristors conducting, both the positive and negative thyristors conduct simultaneously during the overlap period.
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer?.
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer?.
Solutions for In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer?, a detailed solution for In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a single phase full converter fed by a source having inductance, the number of thyristors conducting during overlap isa)1b)2c)3d)4Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup