Answer / wareagle

I²R

how an electron flow in a wire. can it flow like a car running on the road?

2 Answers  

---

Frequency in the control system represents? Continuous system in time domain ? In frequency domain?

1 Answers   CCP,

---

is there any current flows in our body?

4 Answers  

---

Is RTCC panel needs any control supply.

0 Answers   HPCL, Schneider,

---

do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.

1 Answers  

---

why earthing point in the 6amps/16amps socket bigger than the remaining (Phase & Neutral)points.

1 Answers  

---

What is mechanical interlock?Explain the uses?

2 Answers   HSL,

---

What is Wlak Test in Fire Alarm System????

2 Answers   Emerson,

---

What is surger vector in 33Kv transmission feeder? We have AC power generator of 8MW which is paralleled with 33Kv EB grid. Some times our HT breaker gets trip off due to surge vector problem. How to over come it? Is there any device to observe the surge and avoid tripping?

3 Answers  

---

what is the difference between arc and spark

2 Answers   ABB, Jindal,

---

what is the excess air in furnace

0 Answers  

---

Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?

1 Answers  

---