Answer / rakesh gupta

No, A dc transformer is not possible. A transformer secondary coil generates voltage(induced) when there is a variation of flux though its coil which is produced by pulsating current in the primary coil which is not possible with dc source. however a dc voltage regulation can be possible with dc to dc converter.  

Answer / thran

not possible because there"s no mutual induction...

Answer / sauvik biswas

Chopper is often said to be dc transformer

Answer / pavali.sreenivasulu

not possible because of transformer winding will be damage

what is difference between bus coupler and auto transfer switch

0 Answers   Dubai Properties Group,

---

Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 Answers  

---

can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

0 Answers   UPSC,

---

what is the standard duration after failure EB power

0 Answers  

---

What does substation operator do in substation?

2 Answers   ABB,

---

What is the principal of motor?

0 Answers  

---

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot flow through small piece f earth and if a good insulator then why we use it as return path in lines.???

6 Answers   L&T,

---

DG B-check,C-Check,D-check is depending upon the running hrs.If the running hrs is not reached as mentioned.How to conduct the DG checks.

15 Answers   Blue Star,

---

How to address the servo drive for motor

0 Answers  

---

WHY EXCITER PHASE SEQUENCE ARE OPPOSITE THAN STATOR SUPPLY PHASE SEQUENCE IN SYNCHRONOUS MOTOR >

0 Answers  

---

What is the lockout relay

0 Answers  

---

Why high voltage lines (overhead ) are called high tension lines?

8 Answers  

---