Answer Posted / rahul

well this concept of lag or lead has meaning only when both
VOLT and CURRENT waves are SINUSOIDAL...
For sinusoidal V and I, usually we consider V as reference
phasor and LEAD indicates I leads V(eg. for capacitive
loads) while LAG indicates I lags V(eg. for inductive
loads).
Basically concept of LEAD is rather ambiguous. coz for
capacitive ckt actually "V lags I" rather than "I leads V".

what is the relation between size of the anteena and wavelenghth of radiated wave

2183

---

We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

1987

---

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2543

---

What is the difference between vector surge relay (78) and Pole slip relay (98G)

1211

---

How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?

2897

---

what irequirment need to be followed when working on live equipment

1796

---

All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

1660

---

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3815

---

where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz

2153

---

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

1946

---

how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

2081

---

we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

2120

---

in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

2344

---

at what rate the micro controller increment its timer....is it 1micro seconds or 1/(12*10^6) seconds

1795

---

how can calculate 1kva generator running time in 1 liter keroscene

2617

---