Answer / amit rajak

HVDC actually stands for high voltage direct current.


HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
Transmitting high voltage direct current is more efficient
as compared to high voltage alternating current



transmission system. in this system at generating station
11kv alternating current is generated and stepped up with
the use of power transformer

and then it is converted into direct current with the help
of thyratron a device that converts alternating current
into direct current and than it is fed to the transmission
line.

at the recieving end it is again converted into ac
through rotary converters and then it is stepped down with
the help of suitable tansformers.

and is distributing end

sir,i am swati. i am goin to gv jspl exam on 21st nov'10. iwant previous year question paper. plz help me out. my emailid is swatisinha.dav@gmail.com

1 Answers  

---

A electrical meter has load 500 kw. In 2 hr what rading will come on meter.

2 Answers  

---

What should be the BDV value of a new transformer oil

3 Answers  

---

What are the advantages and disadvantages of short-pitched winding?

0 Answers  

---

WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

0 Answers  

---

how i caculate the cable size for power factor correction unit for example 300kvar

1 Answers  

---

What will the effect on a motor designed at 60 HZ, and operated on 50 HZ ??

8 Answers  

---

why the transformers are rated in kv not kw?

6 Answers   L&T,

---

DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV

2 Answers  

---

what is RMU ?

26 Answers   MacLellan, Shalaka Infra Tech,

---

Why DC excitation is used for alternators? Why cant it be AC?

35 Answers   ABB, Ace Info, Alstom, Shalivahana Power,

---

What are the advantages of speed control using thyrister?

6 Answers  

---