Answer Posted / hosam

you have 100kva pole type TX
POWER 100x0.8= 80 kw
total load aprox: p= 47 kw
tx capactiy rate 47/100 =% 47 load
the resistance of earthing to be less than 3 ohms.
cable cu 70 squ mm to load 47 kw lengh 100 mtr
%e1= 0.0124(47x100)/70= 0.85 tolal load
from tx to panels supply 32.5 kw lengh 50mtr cable 4cxm35 mm squ + 14.5 kw lengh 25mtr cable10 squ mm
%e2= 0.0124(32x50)/35= 0.56
%e3= 0.124(14x25)/10= 0.4
%e = %(0.85+0.56+0.4)= %1,81 < %3
total of the voltage drop is acceptable

in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

2097

---

What are the Full Forms of TVM, MTL, CVT ?

1443

---

how the phase convertor changes the no. of phases

2003

---

When will you multiply and devide with derating factors to the actual value while sizing the cable?

1953

---

For high frequency application we use which transformer?

1942

---

What will happen if a dc source is given to a tubelight. Will it work or wont it work....

1990

---

Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

2050

---

differnce between single acting and double acting solenoid valves

1849

---

How can calculate the rating of a servo stabilizer for given a specific load

3533

---

pls tell us AC plant are how do work and parts name with picture

1974

---

What is difference between slip rings and carbon burushes?

15121

---

What are the types of excitation system?

2042

---

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1990

---

working principle of AC Servo Motor with its construction

8885

---

What is the function of electron gun assembly used in crt?

1190

---