Download JNTUK (Jawaharlal Nehru Technological University Kakinada (JNTU kakinada)) M.Tech (ME is Master of Engineering) 2020 R19 EEE EHV AC Transmission Model Previous Question Paper
[M19 PS1105]
I M. Tech I Semester (R19) Regular Examinations
EHVAC TRANSMISSION
(ELECTRICAL & ELECTRONICS ENGINEERING)
MODEL QUESTION PAPER
TIME: 3 Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT
All questions carry equal marks
*****
CO KL M
UNIT - I
1. a). Explain the power handling capability and line losses in EHV lines and discuss
the useful conclusions from it.
CO1 K4 7
b). Derive the expression for inductance of a Multi conductor line used in EHV AC
transmission line
CO1 K4 8
OR
2. a). Explain different mechanical considerations that are taken in to accnt for
transmission line performance.
CO1 K4 7
b). Write down the procedure for diagonalization of Inductance matrix L
=
?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? of a transposed line.
CO1 K4 8
UNIT - II
3. a). What are the effects of high electrostatic fields on biological organisms and
human beings
CO2 K4 8
b). Starting from the fundamentals derive the expression for potential relations for
multi conductor lines.
CO2 K4 7
OR
4. a). Explain surface voltage gradient on conductors in a bundle. CO2 K4 7
b). Derive the expression for voltage (charge voltage relation) of two conductor line. CO2 K4 8
UNIT - III
5. a). List t different corona loss formulae and explain each one CO3 K4 7
b). Explain the generation and measurement of audio noise due to corona in EHV
lines.
CO3 K4 8
OR
6. a). Explain in detail the measurement of Audible Noise. CO3 K4 8
b). The field strength on the surface of a sphere of 1 cm radius is equal to the corona
inception gradient in air of 30 KV/cm. Find the charge on the sphere.
CO3 K4 7
UNIT - IV
7. a). Explain cascade connection of components in shunt and series compensation. CO4 K4 8
b). Explain the voltage control using synchrons condenser. CO4 K4 7
OR
8. a). Explain the sub synchrons resonance in a series capacitor. CO4 K4 8
b). Compare series and shunt compensation for EHV AC transmission CO4 K4 7
UNIT - V
9. a). Explain in detail abt the SVC schemes. CO4 K4 8
b). Explain how the harmonics are injected in to network by TCR. CO4 K4 7
OR
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[M19 PS1105]
I M. Tech I Semester (R19) Regular Examinations
EHVAC TRANSMISSION
(ELECTRICAL & ELECTRONICS ENGINEERING)
MODEL QUESTION PAPER
TIME: 3 Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT
All questions carry equal marks
*****
CO KL M
UNIT - I
1. a). Explain the power handling capability and line losses in EHV lines and discuss
the useful conclusions from it.
CO1 K4 7
b). Derive the expression for inductance of a Multi conductor line used in EHV AC
transmission line
CO1 K4 8
OR
2. a). Explain different mechanical considerations that are taken in to accnt for
transmission line performance.
CO1 K4 7
b). Write down the procedure for diagonalization of Inductance matrix L
=
?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? of a transposed line.
CO1 K4 8
UNIT - II
3. a). What are the effects of high electrostatic fields on biological organisms and
human beings
CO2 K4 8
b). Starting from the fundamentals derive the expression for potential relations for
multi conductor lines.
CO2 K4 7
OR
4. a). Explain surface voltage gradient on conductors in a bundle. CO2 K4 7
b). Derive the expression for voltage (charge voltage relation) of two conductor line. CO2 K4 8
UNIT - III
5. a). List t different corona loss formulae and explain each one CO3 K4 7
b). Explain the generation and measurement of audio noise due to corona in EHV
lines.
CO3 K4 8
OR
6. a). Explain in detail the measurement of Audible Noise. CO3 K4 8
b). The field strength on the surface of a sphere of 1 cm radius is equal to the corona
inception gradient in air of 30 KV/cm. Find the charge on the sphere.
CO3 K4 7
UNIT - IV
7. a). Explain cascade connection of components in shunt and series compensation. CO4 K4 8
b). Explain the voltage control using synchrons condenser. CO4 K4 7
OR
8. a). Explain the sub synchrons resonance in a series capacitor. CO4 K4 8
b). Compare series and shunt compensation for EHV AC transmission CO4 K4 7
UNIT - V
9. a). Explain in detail abt the SVC schemes. CO4 K4 8
b). Explain how the harmonics are injected in to network by TCR. CO4 K4 7
OR
10. a). Design a filter for supressing harmonics injected in to the system. CO4 K4 8
b). A 100MVA 230KV 50Hz transformer has x
t
= 12% and is connected to a line
200km long which has an inductance of 1mH/km. The filter, connected to the l.v.
33kv side of the transformer, is required to supress the 5
th
harmonic generated by
the TCR to 1% of I
n
. Calculate the value of filter capacitor if the filter inductance
used in 2mH.
CO4 K4 7
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This post was last modified on 28 April 2020