Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  A step-down delta-star transformer, with per-... Start Learning for Free
A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.
The power delivered to the load is 6839.3 Watts.
The maximum value of the load current is √2 x 22 A.
Fin, the rms value of output voltage Vo (rms)
  • a)
    257.3 V
  • b)
    220 V
  • c)
    261.52 V
  • d)
    248.32 V
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A step-down delta-star transformer, with per-phase turns ratio of 5 is...
Power delivered to the load (Pdc) = Vo(rms)2/R (i)
Imp = Vmp/R
Therefore, R = Vmp/Imp = (1100 x √2)/(5 x √2 x 22) = 10 Ω
Put R in equation (i) & find the required R.M.S voltage.
View all questions of this test
Most Upvoted Answer
A step-down delta-star transformer, with per-phase turns ratio of 5 is...
To find the maximum value of the load current, we need to calculate the secondary current of the transformer.

Given:
Per-phase turns ratio = 5
Primary voltage (Vp) = 1100 V

The secondary voltage (Vs) can be calculated using the turns ratio:
Vs = Vp / turns ratio
Vs = 1100 V / 5
Vs = 220 V

The power delivered to the load (Pload) is 6839.3 Watts.

The load current (Iload) can be calculated using the power formula:
Pload = Vs * Iload
6839.3 = 220 * Iload

Rearranging the equation to find Iload:
Iload = Pload / Vs
Iload = 6839.3 / 220
Iload ≈ 31.09 Amps

Therefore, the maximum value of the load current is approximately 31.09 Amps.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer?
Question Description
A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. 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 step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. 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 step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. 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 step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A step-down delta-star transformer, with per-phase turns ratio of 5 is fed from a 3-phase 1100 V source. The secondary of this transformer is connected through a 3-pulse type rectifier, which is feeding an R load.The power delivered to the load is 6839.3 Watts.The maximum value of the load current is √2 x 22 A.Fin, the rms value of output voltage Vo (rms)a)257.3 Vb)220 Vc)261.52 Vd)248.32 VCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev