why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

0 Answers  

---

why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

1 Answers  

---

What is the function of RCCB? What are the different sensitivity ratings & each application?

6 Answers   Wipro,

---

i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

2 Answers  

---

1)how many types of earth? 2)how many types of megger and how to select that range? how much time taken for megger calibration( we r using megger)

1 Answers  

---

1 amp means-how many electron flow per second. ?

2 Answers  

---

what is earthing transformer? draw the winding dia.of earthing transformer.

0 Answers  

---

Iwould like to know barc interview questions

0 Answers   BARC,

---

High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

0 Answers   NTPC,

---

why always electric field is linked with magnetic field???

2 Answers   Bhushan Power Steel, NTPC, Tata Steel Limited,

---

in 33kv/11kv stepdown t/f why should we use Star point

2 Answers  

---

In Indian Railways , how the AC motor is driven? Please explain clearly starting from the overhead 25kV supply.

1 Answers  

---