Underground cable

QUESTION 2

QUESTION 16

QUESTION 16 ,17

QUESTION 29 ,30 ,31

QUESTION 32

QUESTION 33

QUESTION 34

QUESTION 36, 37

QUESTION 38, 39

QUESTION 40

QUESTION 41

QUESTION 42

Question 1

2nd  method 

0.5878 calculation details 

2.1972 calculation details 

1.0986 calculation details 

2.303 calculation details  or , 2.3026 

0.4771 calculation details 

Question 3

0.91629 calculation details 

1.6094 calculation details 

0.6931 calculation details 

Question 4

0.673 calculation details 

2.303 calculation details 

0.2923 calculation details by log table 

Question 5

28.57×10¹²ohm .m
Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

substituting the values in the above expression, we get , 

g max = 

maximum stress in conductor surface . 

And , 

The minimum stress occur at the sheath and its value is given by , g min. = 

minimum stress (at sheath inner surface)

Explanation 1.386 

Question 14

1.386 calculation details 

Question 15

(1).

0.879 calculation details 

(2) 

Minimum electrostatic stress in the cable is = 

(3)

Capacitance of cable , C = 

(4)

Charging current= 

= 2π × 50 × 0.22 × 10–⁶ × 11000 , 

= 0.76 amperes ,  Answer.

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Question 

Question 

Question

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