A 10 kVA, 2000/400 V single-phase transformer...
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and  0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?
• a)
1.04 Ω
• b)
2.52 Ω
• c)
2.42 Ω
• d)
5.65 Ω
 FREE This question is part of
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance...
View all questions of this test
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance...
Free Test
 FREE SSC JE (EE) Mock Test- 5200 Ques | 120 Min
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance...
Ω and 20 Ω respectively. The secondary resistance and inductive reactance are 0.02 Ω and 0.08 Ω respectively.

To find the equivalent circuit of the transformer, we can use the following steps:

1. Calculate the primary and secondary impedances:

Zp = R1 + jX1 = 5 + j20 Ω
Zs = R2 + jX2 = 0.02 + j0.08 Ω

2. Calculate the turns ratio:

a = Vp/Vs = 2000/400 = 5

3. Calculate the equivalent impedance referred to the primary side:

Zeq = Zs/a^2 = (0.02 + j0.08)/5^2 = 0.0008 + j0.0032 Ω

4. Add the primary resistance and reactance to the equivalent impedance:

Zeq' = Zeq + Zp = (5 + 0.0008) + j(20 + 0.0032) Ω = 5.0008 + j20.0032 Ω

5. Calculate the equivalent circuit parameters:

R' = 5.0008 Ω
X' = 20.0032 Ω
Z' = sqrt(R'^2 + X'^2) = 20.0036 Ω
θ' = arctan(X'/R') = 89.999° (almost purely inductive)

Therefore, the equivalent circuit of the transformer is a 10 kVA, 2000/400 V single-phase transformer with an equivalent impedance of 20.0036 Ω at an angle of 89.999°.
 Explore Courses for SSC JE exam
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer?
Question Description
A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? for SSC JE 2024 is part of SSC JE preparation. The Question and answers have been prepared according to the SSC JE exam syllabus. Information about A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC JE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC JE. Download more important topics, notes, lectures and mock test series for SSC JE Exam by signing up for free.
Here you can find the meaning of A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A 10 kVA, 2000/400 V single-phase transformer has a primary resistance and inductive reactance of 5 Ω and 12 Ω respectively. The secondary values are 0.2 Ω and 0.48 Ωrespectively. What is the impedance of the transformer referred to the secondary side?a)1.04Ωb)2.52Ωc)2.42Ωd)5.65ΩCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice SSC JE tests.
 Explore Courses for SSC JE exam