Answer / dinesh

% impedance indicate the potential to decrease the fault
level in system by that eqipment. % impedance values msotly
occur in between 2 to 20 %

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

10 Answers   ABB,

---

the winding of Generator and Motor is star or in delta ? and why

0 Answers  

---

What will be done if we open the secondary of CT on load??

4 Answers   Engro,

---

features of hbc fuses

0 Answers  

---

why batteries are rated in ampere hour

1 Answers  

---

Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

0 Answers  

---

what will happen if i connect the buchholz relay in reverse direction.

1 Answers   MAN,

---

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 Answers  

---

How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

0 Answers   TCL,

---

how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

0 Answers   Tyco,

---

Why generation voltage in thermal power plant is between 11kv to 33kv?

0 Answers  

---

why we use core type and shell type transformers?

2 Answers  

---