Answer / sunil kumar sinha

NGT is used for generator to limit earthfault current and
provide earthfault protection of generator stator. In case
of generator the voltage built up in the primary winding is
related to earth leakage current, hence NGT is charged to a
very low voltage, but the Transformer is always charged to
its rated voltage hence no such device is suitable either
to limit earthfauilt current or any kindf of protection.

why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

0 Answers  

---

What is the working of Field winding in dc motor, in which part is it work or why ?

3 Answers  

---

How does the slip regulator works as a startor

0 Answers  

---

What is disc insulator and it's application..?

2 Answers  

---

which braking is used in traction motor and what is its working send at mukeskumar27@hotmail.com

2 Answers  

---

can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

0 Answers  

---

what are the various parts of airconditioning system used in train and its working

1 Answers  

---

My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

---

What is the formula to calculate the rating of power cable for three phase current.

0 Answers  

---

what is use of lockout relay in ht voltage

2 Answers  

---

what do you know about SERVOMOTOR

4 Answers  

---

how to calculate multiplying factor with ct ratio 400/5

1 Answers   KBPL,

---