Answer Posted / vinod

NGR capacity should allow the mininmum earth fault current
so that system with minimum earth fault current can be
detected and isolated by earthfault relay.
ie NGR fuction is to reduce the earth fault to the minimum
level in the range of earth fault relay

how many single tension hardware are required on a double circuit transmission tower?

1869

---

What is nyquist contour?

1138

---

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1666

---

I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1756

---

if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?

1942

---

What is meant by cold loop test in instrument

2546

---

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1844

---

Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

2121

---

what is the difference between the characteristics of two different phase bushing of any transformer

1761

---

What do you mean by phasors?

1015

---

How would you calculate power loss in a resistor?

1016

---

What are the functions of temperature scanner in power transformer?

2105

---

We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

1593

---

I have two PLC processors. I want to communicate both processor with each other. How i can do so?

2101

---

DG cranking voltage?

4679

---