EPE Assignment

 

 

INDUS INSTITUTE OF TECHNOLOGY & ENGINEERING

                        ELECTRICAL POWER ENGINEERING

SEMESTER 5TH EEE

 

 

Assignment:-                         02

Topic:-                           Overhead line insulators and General Distribution System

Total No. Of Questions :-     08

Date Of Issue :-              16/8/11

Date Of Submission :-          24/8/11     

 

1)   Describe briefly with neat sketches any two types of insulators that are commonly used in overhead transmission lines.

2)   Explain why the potential distribution is not uniform over the string in a suspension type of insulators ?

3)   Explain string efficiency and methods to improve this for insulators.

4)   In a string of three identical suspension insulator units supporting a transmission line conductor ,if  the self capacitance of each unit is denoted as C farads ,the capacitance of each connector pin to ground can be taken as 0.1 farads .Determine the voltage distribution across the string if the maximum permissible voltage per unit is given as 20 kv .Also determine the string efficiency.

5)   Explain 2-wire dc system of distribution of electrical power.

6)   A dc two line distributor AB 600 metre long is fed at 440 V from substation A and at 430 V from substation B ,the loads are:

100 A at C,150 metres from A

200 A at D,150 metres from C

250 A at E,50 metres from   D

300 A at F,100 metres from E

If each line conductor has a resistance of 0.01 ohm per 100 metres ,calculate the current supplied from substations A and B and the voltage across each load.

7)   Expalin the methods of solving AC Distribution problems .

8)   Derive an expression for the voltage drop for a uniformly loaded distributor fed at one end.

One thought on “EPE Assignment

  1. Delighted for you to discovered this site write-up, My group is shopping a lot more often than not regarding this. This can be at this moment undoubtedly what I are already seeking and I own book-marked this specific site online far too, Ill often be maintain returning soon enough to appear at on your special weblog post. 169329

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s