Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Consider the following statements:The VAR inj...
Start Learning for Free
Consider the following statements:
The VAR injection in a power system is obtained by:
1. Tap changing transformers
2. Synchronous condensers
3. Capacitor and inductor banks
4. Inductor banks
Which of the following statements given above are correct?
- a)1, 3 and 4
- b)1, 2 and 3
- c)2 and 3 only
- d)2, 3 and 4
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Consider the following statements:The VAR injection in a power system ...
The purpose of a tap changer is to regulate the output voltage of a transformer. It does this by altering the number of turns in one winding and thereby changing the turn’s ratio of the transformer.
Synchronous condensers and capacitor banks are used to inject leading VAR into system where as inductor banks are used to inject lagging VAR into system.
Most Upvoted Answer
Consider the following statements:The VAR injection in a power system ...
Understanding VAR Injection in Power Systems
VAR (Volt-Ampere Reactive) injection is crucial for maintaining voltage levels and improving power factor in power systems. The options provided relate to various devices that manage reactive power.
1. Tap Changing Transformers
- Tap changing transformers are primarily used for voltage regulation, adjusting the transformer turns ratio to maintain output voltage levels.
- They do not directly inject reactive power (VARs) into the system.
2. Synchronous Condensers
- Synchronous condensers are machines that can either absorb or provide reactive power.
- They operate like synchronous motors running without a mechanical load, thus contributing significantly to VAR support.
3. Capacitor and Inductor Banks
- Capacitor banks are used for reactive power injection, enhancing voltage stability and improving power factor.
- Inductor banks can absorb reactive power, helping in voltage regulation under specific conditions.
4. Inductor Banks
- Inductor banks specifically are used to absorb excess reactive power, thus supporting the system in cases of over-voltage.
Correct Combinations for VAR Injection
Given the above explanations:
- Option 1 (Tap Changing Transformers) is incorrect for VAR injection.
- Option 2 (Synchronous Condensers) is correct.
- Option 3 (Capacitor and Inductor Banks) is correct; it includes capacitors which inject VARs.
- Option 4 (Inductor Banks) is also correct as they absorb VARs.
Therefore, the correct answer is option D: 2, 3, and 4, as they are the only components that actively manage reactive power in a power system.
VAR (Volt-Ampere Reactive) injection is crucial for maintaining voltage levels and improving power factor in power systems. The options provided relate to various devices that manage reactive power.
1. Tap Changing Transformers
- Tap changing transformers are primarily used for voltage regulation, adjusting the transformer turns ratio to maintain output voltage levels.
- They do not directly inject reactive power (VARs) into the system.
2. Synchronous Condensers
- Synchronous condensers are machines that can either absorb or provide reactive power.
- They operate like synchronous motors running without a mechanical load, thus contributing significantly to VAR support.
3. Capacitor and Inductor Banks
- Capacitor banks are used for reactive power injection, enhancing voltage stability and improving power factor.
- Inductor banks can absorb reactive power, helping in voltage regulation under specific conditions.
4. Inductor Banks
- Inductor banks specifically are used to absorb excess reactive power, thus supporting the system in cases of over-voltage.
Correct Combinations for VAR Injection
Given the above explanations:
- Option 1 (Tap Changing Transformers) is incorrect for VAR injection.
- Option 2 (Synchronous Condensers) is correct.
- Option 3 (Capacitor and Inductor Banks) is correct; it includes capacitors which inject VARs.
- Option 4 (Inductor Banks) is also correct as they absorb VARs.
Therefore, the correct answer is option D: 2, 3, and 4, as they are the only components that actively manage reactive power in a power system.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer?
Question Description
Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
Solutions for Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 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 Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 4Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following statements:The VAR injection in a power system is obtained by:1. Tap changing transformers2. Synchronous condensers3. Capacitor and inductor banks4. Inductor banksWhich of the following statements given above are correct?a)1, 3 and 4b)1, 2 and 3c)2 and 3 onlyd)2, 3 and 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
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup