Answer Posted / naveen kumar sharma

generally electrical train gets supply of 25kv dc from the
above wiring in the train .in train we convert the dc to ac
by using inverter then we use the electric supply and the
return path of current is the track of rail which is
grounding...

why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

1860

---

How would you calculate power loss in a resistor?

1057

---

Generator,motor and alternator Working principal Please explain easily

1456

---

What is difference between isolator and circuit breaker?

1122

---

The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

1887

---

how single phase preventer works ?

2529

---

what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?

2902

---

How does a television work?

2301

---

Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?

1646

---

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

2070

---

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

2333

---

What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1870

---

what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

2329

---

I want d.g.set our company

1870

---

i am studying in final year can i allowed for 23rd UES of Indian army

2115

---