Answer / k.prakashchandra

More primary and secondary turns are required to make up
for the lower primary current to maintain the secondary
current.Hence the core also will be bigger.

Answer / isa

CT is a step up transformer thats why with the decrease of ct ratio the the current in the secondary side will increase as a result of decrease in secondary voltage ,which will cause more I sqr. losses which is not economical further.

1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

0 Answers   Areva,

---

Assume a condition such that two motors of rating 6.6kv,415v are connected to blower,so tell me which motor draw large current give appropriate reason?

2 Answers   NTPC, Student,

---

How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 Answers  

---

What is Electrical Engineering?

13 Answers   L&T, NTPC, Wockhardt,

---

What is a charge.?

4 Answers  

---

what is the acceptable limit value for Desolve Gas Analysis/

0 Answers  

---

why using in cable mm square which is mm & which is square why using mm & square.

1 Answers   Airtel,

---

There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in series. Load is taking 15 A current.What will be the back up power for this UPS on same load?

1 Answers   BS, Dynamic Software,

---

what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers   Eskom, Sona,

---

Define what is the function of anti-pumping in circuit breaker?

0 Answers  

---

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

0 Answers  

---

what is working parincipal of a ht transformer

0 Answers   Pidilite,

---