Answer Posted / d.k. gupta

transformer induces e.m.f. due to rate of change of flux ,
which is only possible in a.c. supply in stationary
machines, if we will give d.c. supply as input there will
be no out put & due to core saturation after some time it
will be got damaged(burn).

Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

2025

---

what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?

2111

---

Explain Continuous and Discrete signals?

1749

---

Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1894

---

orifice sizing how done, checking & selection

1968

---

what is the difference between b c d curves on mcb

1813

---

what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration

2235

---

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2208

---

WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME

1884

---

Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.

1856

---

Define the term Capacitance and Inductance?

1120

---

what are symmetrical and non symmetrical components in electrical installation.

2082

---

What is dynamo function in DG sets and draw block diagram?

2046

---

Wt is the function of reactive power? How it generates & consume though resultant is zero?

1894

---

What is CVT and what is relation with wave trap?

2154

---