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If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be a
- a)synchronous generator.
- b)synchronous motor.
- c)static load.
- d)transmission line.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the positive,-negative-and zero-sequence reactances of an element o...
Given information:
- Positive sequence reactance = 0.3 pu
- Negative sequence reactance = 0.3 pu
- Zero sequence reactance = 0.8 pu
Explanation:
To determine the type of element, we need to understand the behavior of each sequence reactance for different elements in a power system.
1. Synchronous generator:
A synchronous generator has a large positive sequence reactance and a small negative sequence reactance. The zero sequence reactance is usually very small or zero. Therefore, the given values of reactances do not match with those of a synchronous generator.
2. Synchronous motor:
A synchronous motor has a large negative sequence reactance and a small positive sequence reactance. The zero sequence reactance is usually very small or zero. Therefore, the given values of reactances do not match with those of a synchronous motor.
3. Static load:
A static load has equal positive, negative, and zero sequence impedances. Therefore, the given values of reactances do not match with those of a static load.
4. Transmission line:
A transmission line has equal positive and negative sequence impedances and a larger zero sequence impedance. Therefore, the given values of reactances match with those of a transmission line.
Conclusion:
From the above explanation, we can conclude that the given element is a transmission line.
- Positive sequence reactance = 0.3 pu
- Negative sequence reactance = 0.3 pu
- Zero sequence reactance = 0.8 pu
Explanation:
To determine the type of element, we need to understand the behavior of each sequence reactance for different elements in a power system.
1. Synchronous generator:
A synchronous generator has a large positive sequence reactance and a small negative sequence reactance. The zero sequence reactance is usually very small or zero. Therefore, the given values of reactances do not match with those of a synchronous generator.
2. Synchronous motor:
A synchronous motor has a large negative sequence reactance and a small positive sequence reactance. The zero sequence reactance is usually very small or zero. Therefore, the given values of reactances do not match with those of a synchronous motor.
3. Static load:
A static load has equal positive, negative, and zero sequence impedances. Therefore, the given values of reactances do not match with those of a static load.
4. Transmission line:
A transmission line has equal positive and negative sequence impedances and a larger zero sequence impedance. Therefore, the given values of reactances match with those of a transmission line.
Conclusion:
From the above explanation, we can conclude that the given element is a transmission line.
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Community Answer
If the positive,-negative-and zero-sequence reactances of an element o...
In a transmission line zero component reactance is greater then positive or negative component ,
In transformer all zero positive and negative are equal
In generators Positive is greater then negative and both are more then zero . although positive is slightly greater then negative , sometimes both were mentioned nearly equal
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If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer?.
If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the positive,-negative-and zero-sequence reactances of an element of a power system are 0.3, 0.3 and 0.8 pu respectively, then the element would be aa)synchronous generator.b)synchronous motor.c)static load.d)transmission line.Correct answer is option 'D'. Can you explain this answer?.
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