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For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given by
- a)π+α
- b)2π+α
- c)π-α
- d)α
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
For a single phase thyristor circuit with R load & firing angle &a...
SCR is fired at α, hence it conducts from α till it is commutated by the reversal of the AC supply i.e at π radians.
Most Upvoted Answer
For a single phase thyristor circuit with R load & firing angle &a...
In a single phase thyristor circuit with R load, the thyristor is connected in series with the load and a DC voltage source. The circuit works as follows:
1. Initially, the thyristor is in the off state, and no current flows through the load.
2. When a positive gate signal is applied to the thyristor, it turns on and begins to conduct current. The load now receives power from the DC voltage source.
3. Once the thyristor is on, it remains on until the current flowing through it drops below a certain threshold value. This is known as the "holding current" of the thyristor.
4. To turn off the thyristor, the current flowing through it must be reduced to zero. This can be achieved by either reducing the voltage across the load or by applying a negative gate signal to the thyristor.
5. Once the thyristor is turned off, the circuit returns to its initial state, and no current flows through the load.
Overall, the single phase thyristor circuit with R load is a simple and efficient way to control the power delivered to a resistive load. It is commonly used in applications such as heating, lighting, and motor control.
1. Initially, the thyristor is in the off state, and no current flows through the load.
2. When a positive gate signal is applied to the thyristor, it turns on and begins to conduct current. The load now receives power from the DC voltage source.
3. Once the thyristor is on, it remains on until the current flowing through it drops below a certain threshold value. This is known as the "holding current" of the thyristor.
4. To turn off the thyristor, the current flowing through it must be reduced to zero. This can be achieved by either reducing the voltage across the load or by applying a negative gate signal to the thyristor.
5. Once the thyristor is turned off, the circuit returns to its initial state, and no current flows through the load.
Overall, the single phase thyristor circuit with R load is a simple and efficient way to control the power delivered to a resistive load. It is commonly used in applications such as heating, lighting, and motor control.
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For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. 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 For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. 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 For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. Can you explain this answer?.
For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. 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 For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. 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 For a single phase thyristor circuit with R load & firing angle α, the conduction angle can be given bya)π+αb)2π+αc)π-αd)αCorrect answer is option 'C'. Can you explain this answer?.
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