Answer / ik

In an inductive circuit inductor opposes the changing
current for inductive load, and stores energy.it delivers
later this storing energy.hence voltage lagging the current.

Answer / mohammad farman khan

Leading power factor means current can lead by voltage and
always use for induction motor.

lagging power factor means caurrent lag by voltage and
alway use for improving power factor for office where we
need to improve power factor and get lost cost effect.

Answer / vishvesh

Power factor is a cosine angle between voltage and current.
if it is more than 1.0 then it is considered as leading
power factor. and if it is less the 1.0 then it is
considered as lagging power factor.

At the time of 1st charging of transformer, there were huge inrush current, so why at that diffrential relay are not operated? Why?

3 Answers   Adani,

---

Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

0 Answers  

---

i've iocl interview.. if you know the interview process please give me information..

0 Answers  

---

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

44 Answers   Akona Engineering, Bhel, BSES, Cranex, DRDO, JCB, NTPC,

---

What is the normal value of delta in rotor angle stability or transient stability? Why it selected so?

1 Answers  

---

---

what is the difference between 230v and 115v?

1 Answers   Bhushan Power Steel,

---

What is ZCT? it operating principle and how is work with RCCB (residual current circuit breaker)?

4 Answers  

---

The DC current waveform is - . What about the fire alarm waveform?

1 Answers  

---

Can anybody tell abt concrete encased earthing or grounding?

0 Answers  

---

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

0 Answers  

---

how you connect the induction motor first in star and then delta in star-delta starter

1 Answers  

---

what is the isolation transformer. what is the isolator?

0 Answers  

---