Answer / jawad

As we know that IGBT can be controlled in both turning on
and turning off conditions, so we can control the switching
frequency during conversion, hence we would make switching
for very small instant and would get a smooth and less noise
sine wave. while in case of thyristor, we can only control
it in "on" condition, so switching would affect and we can't
get desired smooth and less noise sine wave at output.

what is the difference between Power and Distribution transformers ?

0 Answers  

---

A resistance of 50 kΩ has a conductance of:(a) 20S(b) 0.02S(c) 0.02 mS(d) 20 kS

1 Answers  

---

How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.

0 Answers  

---

waht is the working principle of saft starter & what is the difference in vfd & saft starter

2 Answers   Cipla,

---

why ac can not be stored?

5 Answers  

---

What are effect of radio system in DCS Distributed control system ?

1 Answers   Sabic,

---

A resistance, inductance & capacitance are connected in series between points A & B.The voltage drops across the resistance,inductance&capacitance are found to be 40V,70V&100V respectively. What is the total voltage between between points A&B (Vab)? a)210V b)70V c)50V d)230V

6 Answers  

---

which starter is used for synchronous motor

18 Answers   APTransco, IBM,

---

In scott connection why connect teaser transformer to 86.6% and main transformer to 50%..

1 Answers   Silicon,

---

How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)

0 Answers   TATA,

---

what is different between relay and plc?

3 Answers  

---

what do you mean by the "bay" in a switchyard? how to determine exact number of bays in a substation?

8 Answers   Essar, L&T,

---