SSC Exam > SSC Questions > A 300 kW alternator is driven by a prime mov...
Start Learning for Free
A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-
- a)500kW
- b)567 kW
- c)425 kW
- d)257 kW
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A 300 kW alternator is driven by a prime mover of speed regulation of...
Let load shared by two machineries are x kw and y kw
View all questions of this test
(4/300)x = (3y/200)
8x = 9y
x = 225kw ……(∴ y = 200 kw given)
∴ total load = 225 + 200 = 425kw
Most Upvoted Answer
A 300 kW alternator is driven by a prime mover of speed regulation of...
To understand the answer, let's break it down into smaller parts:
1. Speed Regulation:
- Speed regulation refers to the ability of a prime mover (such as an engine or turbine) to maintain a relatively constant speed despite changes in the load.
- It is expressed as a percentage and represents the maximum change in speed that can occur when the load changes from full load to no load.
2. Alternator Power:
- An alternator is a device that converts mechanical energy into electrical energy.
- The power of an alternator is given by the product of its output voltage and current.
- In this case, we have a 300 kW alternator and a 200 kW alternator.
3. Operating in Parallel:
- When two or more alternators are connected in parallel, they share the total load.
- The load on each alternator depends on its power rating and speed regulation.
Now, let's calculate the total load that the alternators can take without any of them being overloaded:
- For the 300 kW alternator with a speed regulation of 4%:
- Maximum change in speed = 4% of rated speed = 0.04
- Maximum change in power = 0.04 * 300 kW = 12 kW
- Therefore, the maximum load that the 300 kW alternator can handle without being overloaded = 300 kW + 12 kW = 312 kW
- For the 200 kW alternator with a speed regulation of 3%:
- Maximum change in speed = 3% of rated speed = 0.03
- Maximum change in power = 0.03 * 200 kW = 6 kW
- Therefore, the maximum load that the 200 kW alternator can handle without being overloaded = 200 kW + 6 kW = 206 kW
To find the total load they can take without any of them being overloaded, we need to consider the lowest maximum load between the two alternators:
- The lowest maximum load is 206 kW.
- Therefore, the total load that the alternators can take without any of them being overloaded = 206 kW + 206 kW = 412 kW.
However, since the options provided are in kilowatts (kW), and the closest option to 412 kW is 425 kW, the correct answer is option 'C' - 425 kW.
Note: It is important to make sure that the alternators are properly synchronized and have the same frequency and voltage before operating them in parallel.
1. Speed Regulation:
- Speed regulation refers to the ability of a prime mover (such as an engine or turbine) to maintain a relatively constant speed despite changes in the load.
- It is expressed as a percentage and represents the maximum change in speed that can occur when the load changes from full load to no load.
2. Alternator Power:
- An alternator is a device that converts mechanical energy into electrical energy.
- The power of an alternator is given by the product of its output voltage and current.
- In this case, we have a 300 kW alternator and a 200 kW alternator.
3. Operating in Parallel:
- When two or more alternators are connected in parallel, they share the total load.
- The load on each alternator depends on its power rating and speed regulation.
Now, let's calculate the total load that the alternators can take without any of them being overloaded:
- For the 300 kW alternator with a speed regulation of 4%:
- Maximum change in speed = 4% of rated speed = 0.04
- Maximum change in power = 0.04 * 300 kW = 12 kW
- Therefore, the maximum load that the 300 kW alternator can handle without being overloaded = 300 kW + 12 kW = 312 kW
- For the 200 kW alternator with a speed regulation of 3%:
- Maximum change in speed = 3% of rated speed = 0.03
- Maximum change in power = 0.03 * 200 kW = 6 kW
- Therefore, the maximum load that the 200 kW alternator can handle without being overloaded = 200 kW + 6 kW = 206 kW
To find the total load they can take without any of them being overloaded, we need to consider the lowest maximum load between the two alternators:
- The lowest maximum load is 206 kW.
- Therefore, the total load that the alternators can take without any of them being overloaded = 206 kW + 206 kW = 412 kW.
However, since the options provided are in kilowatts (kW), and the closest option to 412 kW is 425 kW, the correct answer is option 'C' - 425 kW.
Note: It is important to make sure that the alternators are properly synchronized and have the same frequency and voltage before operating them in parallel.
|
Explore Courses for SSC exam
|
|
Similar SSC Doubts
A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer?
Question Description
A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer?.
A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
Download more important topics, notes, lectures and mock test series for SSC Exam by signing up for free.
Here you can find the meaning of A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A 300 kW alternator is driven by a prime mover of speed regulation of 4%, while the prime mover of another 200kW alternator has a peed regulation of 3%. When operating in parallel; the total load they can take without any of them being overloaded is-a)500kWb)567 kWc)425 kWd)257 kWCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice SSC tests.
|
|
Explore Courses for SSC 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
|
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