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When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above?
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When the secondary of a transformer short-circuited, the primary induc...
The secondary winding of this transformer is short circuited and the primary winding is connected to a 50 Hz, single phase, sinusoidal voltage source. The current flowing in both the winding is less than their respective rated currents. The resistance of both windings can be neglected.
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When the secondary of a transformer short-circuited, the primary induc...
Introduction:
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. It consists of two coils, the primary winding and the secondary winding, which are electrically isolated but magnetically coupled.
Impact of Short Circuit:
When a short circuit occurs in the secondary winding of a transformer, it has an impact on the primary winding as well. Let's discuss the possible effects of a short circuit on the primary inductance of the transformer.
Primary Inductance:
The primary inductance of a transformer is primarily determined by the physical characteristics of the primary winding, such as the number of turns, the core material, and the core geometry. It represents the ability of the primary winding to store magnetic energy when a current flows through it.
Effects of Short Circuit:
When a short circuit occurs in the secondary winding, it alters the current flowing through the primary winding and the resulting magnetic field. This, in turn, affects the primary inductance. Let's explore the possible scenarios:
(i) Decreased Primary Inductance:
In some cases, a short circuit in the secondary winding can lead to a decrease in the primary inductance. This can happen when the short circuit causes an increased current to flow through the primary winding. The increased current can saturate the core material, reducing the effective inductance. Additionally, the short circuit may create eddy currents in the core, further reducing the inductance.
(ii) Increased Primary Inductance:
In certain situations, a short circuit in the secondary winding can result in an increased primary inductance. This can occur when the short circuit causes a decrease in the current flowing through the primary winding. The reduced current can lead to a decrease in the magnetic field, which in turn increases the effective inductance. However, this scenario is less common compared to the decreased primary inductance case.
(iii) Unchanged Primary Inductance:
In some instances, a short circuit in the secondary winding may have no significant impact on the primary inductance. This can happen when the short circuit does not cause any substantial changes in the current or magnetic field within the primary winding. The primary inductance remains unaffected in such cases.
Conclusion:
The impact of a short circuit on the primary inductance of a transformer can vary depending on several factors. It can lead to a decrease, increase, or no significant change in the primary inductance. The specific outcome depends on the magnitude and characteristics of the short circuit and the overall design of the transformer.
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. It consists of two coils, the primary winding and the secondary winding, which are electrically isolated but magnetically coupled.
Impact of Short Circuit:
When a short circuit occurs in the secondary winding of a transformer, it has an impact on the primary winding as well. Let's discuss the possible effects of a short circuit on the primary inductance of the transformer.
Primary Inductance:
The primary inductance of a transformer is primarily determined by the physical characteristics of the primary winding, such as the number of turns, the core material, and the core geometry. It represents the ability of the primary winding to store magnetic energy when a current flows through it.
Effects of Short Circuit:
When a short circuit occurs in the secondary winding, it alters the current flowing through the primary winding and the resulting magnetic field. This, in turn, affects the primary inductance. Let's explore the possible scenarios:
(i) Decreased Primary Inductance:
In some cases, a short circuit in the secondary winding can lead to a decrease in the primary inductance. This can happen when the short circuit causes an increased current to flow through the primary winding. The increased current can saturate the core material, reducing the effective inductance. Additionally, the short circuit may create eddy currents in the core, further reducing the inductance.
(ii) Increased Primary Inductance:
In certain situations, a short circuit in the secondary winding can result in an increased primary inductance. This can occur when the short circuit causes a decrease in the current flowing through the primary winding. The reduced current can lead to a decrease in the magnetic field, which in turn increases the effective inductance. However, this scenario is less common compared to the decreased primary inductance case.
(iii) Unchanged Primary Inductance:
In some instances, a short circuit in the secondary winding may have no significant impact on the primary inductance. This can happen when the short circuit does not cause any substantial changes in the current or magnetic field within the primary winding. The primary inductance remains unaffected in such cases.
Conclusion:
The impact of a short circuit on the primary inductance of a transformer can vary depending on several factors. It can lead to a decrease, increase, or no significant change in the primary inductance. The specific outcome depends on the magnitude and characteristics of the short circuit and the overall design of the transformer.
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When the secondary of a transformer short-circuited, the primary induc...
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When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above?
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When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above? for SSC JE 2024 is part of SSC JE preparation. The Question and answers have been prepared according to the SSC JE exam syllabus. Information about When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above? covers all topics & solutions for SSC JE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above?.
When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above? for SSC JE 2024 is part of SSC JE preparation. The Question and answers have been prepared according to the SSC JE exam syllabus. Information about When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above? covers all topics & solutions for SSC JE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the secondary of a transformer short-circuited, the primary inductance (i) is decreased (ii) is increased (iii) remains unchanged (iv) none of the above?.
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