Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A three phase bridge inverter is fed from a ...
Start Learning for Free
A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)
Correct answer is '408'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A three phase bridge inverter is fed from a 500 V D.C. source. The in...
Given:
- Three phase bridge inverter
- 500 V DC source
- 180°C conduction mode
- Purely resistive, star-connected load
To find:
- RMS value (in V) of the output (line) voltage
Solution:
1. Conduction Mode:
In 180°C conduction mode, each switching device conducts for 180°C or π radians. This means that two devices conduct at any given time, and the other two devices are non-conducting.
2. Output Voltage:
The output voltage of a three-phase bridge inverter can be expressed as:
VL = (2/π) x VDC x sin(ωt)
Where,
- VL = Line voltage
- VDC = DC voltage input
- ω = Angular frequency
In our case, the load is purely resistive, which means that the current waveform is a pure sine wave. Therefore, the output voltage waveform is also a pure sine wave.
3. RMS Value:
The RMS value of a sine wave can be calculated as:
Vrms = Vm/√2
Where,
- Vm = Maximum value of the sine wave
In our case, the maximum value of the output voltage waveform is Vm = (2/π) x VDC = (2/π) x 500 = 318.31 V.
Therefore, the RMS value of the output voltage is:
Vrms = Vm/√2 = 318.31/√2 = 225.14 V
However, this is the phase voltage. To find the line voltage, we need to multiply the phase voltage by √3.
VL (line voltage) = Vphase x √3
VL = 225.14 x √3 = 408 V (rounded to the nearest integer)
Answer: The RMS value (in V) of the output (line) voltage is 408.
- Three phase bridge inverter
- 500 V DC source
- 180°C conduction mode
- Purely resistive, star-connected load
To find:
- RMS value (in V) of the output (line) voltage
Solution:
1. Conduction Mode:
In 180°C conduction mode, each switching device conducts for 180°C or π radians. This means that two devices conduct at any given time, and the other two devices are non-conducting.
2. Output Voltage:
The output voltage of a three-phase bridge inverter can be expressed as:
VL = (2/π) x VDC x sin(ωt)
Where,
- VL = Line voltage
- VDC = DC voltage input
- ω = Angular frequency
In our case, the load is purely resistive, which means that the current waveform is a pure sine wave. Therefore, the output voltage waveform is also a pure sine wave.
3. RMS Value:
The RMS value of a sine wave can be calculated as:
Vrms = Vm/√2
Where,
- Vm = Maximum value of the sine wave
In our case, the maximum value of the output voltage waveform is Vm = (2/π) x VDC = (2/π) x 500 = 318.31 V.
Therefore, the RMS value of the output voltage is:
Vrms = Vm/√2 = 318.31/√2 = 225.14 V
However, this is the phase voltage. To find the line voltage, we need to multiply the phase voltage by √3.
VL (line voltage) = Vphase x √3
VL = 225.14 x √3 = 408 V (rounded to the nearest integer)
Answer: The RMS value (in V) of the output (line) voltage is 408.
Free Test
FREE
| Start Free Test |
Community Answer
A three phase bridge inverter is fed from a 500 V D.C. source. The in...
For a three phase bridge inverter, rms value of output line voltage
Vline(rms) = √2/3 Vdc
Vdc = 500 V
= 0.816 × 500 = 408 V
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
A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer?
Question Description
A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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 A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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 A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer?.
A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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 A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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 A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer?.
Solutions for A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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 A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer?, a detailed solution for A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer? has been provided alongside types of A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A three phase bridge inverter is fed from a 500 V D.C. source. The inverter is operated at 180°C conduction mode and it is supplying a purely resistive, star-connected load. The RMS value (in V) of the output (line) voltage is (Answer up to the nearest integer)Correct answer is '408'. 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