Answer / jagadeesh

X/R ration means (line reactance/line resistance)
for short transmission lines it is X/R<3.0
long lines it is >3.0
because long lines length of transmission line is due to
this inductance is more(L directly proportional to length of
line)
for short lines L is low due to this X is low (X=2&#8719;FL)
some value divides low vale it is always high(ex: 1/0.1=10)

What is the si unit

2 Answers  

---

in trains i have seen the terminal which is connected at the top of the train is positive .where is negative ? track? i dont think so

9 Answers  

---

What will happen if 60 Hz rated transformer is connected to the supply of 50 Hz say 415 V (3-phase) step up to 3.3 kV...?? ?

2 Answers   Essar,

---

how does commutator convert a.c to d.c?

0 Answers   NRSC National Remote Sensing Centre, RBC,

---

How vaccum is formed to create a vaccum interrupter or anything related with vaccum?

6 Answers  

---

---

what is electricity.

6 Answers   HP, L&T,

---

what we happen if 400 kvar cpacitor banks are on in manual mode and there is no load on mains ??????????????

7 Answers   HCL, Reliance,

---

why we cant use AC supply products in DC supply?

21 Answers  

---

why most of the induction are delta connected?

6 Answers  

---

what will happen while giving 2 phase supply to 3 phase motor

5 Answers  

---

what are the difference between AC lamp and DC lamp

0 Answers   Apollo,

---

what is stper motor.what is its uses

9 Answers   Bhel, HCL,

---