Answer Posted / nithin shaju

Applying DC power to a transformer will not step up/down
the voltage,since the current reaches its peak within
milliseconds and remain constant.Therefore no induction
happens.So secondary voltage is induced only during the
current growing period (millisec).After that as long as
there is no fluctuation, sec voltage will be 0.
There is no
problem in connecting dc power suppply to a
transformer.Only winding resistance is taken into
account.But if the current is too high there is a chance of
burning the insulation.

why we used dc supply for field in dg set

2393

---

What will happen if a dc source is given to a tubelight. Will it work or wont it work....

1986

---

how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021

1957

---

Can we Co-ordinate relay in Load Break switch?

1968

---

Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

1976

---

What is the basis for framing the rules of block diagram reduction technique?

1526

---

what is the difference between earthing and unearth

3100

---

How the capacitance og capacitor volatage transformer is decided?

1972

---

What is the simplest formula to calculate the rotor diameter of a synchronous generator?

2453

---

State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

2088

---

how to calculate the Neutral transformer impedance?

2456

---

in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

1879

---

TYPE'S OF BREKAR ,WHAT IS TRANSFORMAR & SAFTY. STARTER DOL & STAR DELTA STARTER.

2594

---

Define damping ratio.

1245

---

what is inter connected dc generator?

2846

---