Answer / kc

freq is directly proportional to speed.and active power is
directly prop to freq.thus rpm depends on active supply
and.jus like at low volt the fan draws more current at a
greater slip and lower pf to prod rated speed which is
undesriable..rpm is dircetly prop to power.

Answer / k.l.subrahmanyam (nb ventures)

mechanical o/p=(2*3.14*n*t)/60 ,mechanical i/p of a generator = electrical o/p (if loss is negligible), then (2*3.14*n*t)/60=v*i (concider o/p is dc ),speed(n) increases mec o/p increases there fore generator i/p also increases,o/p of generator is v*i (emf=n*(d pi/dt),emf=v) due to increase in speed the voltage also increases there electrical o/p also increases

How can you measure the signal from the PT100 sensor?

1 Answers  

---

why earth fault current is always less than the o/c

2 Answers  

---

if we increase the frequency given to a transformer then wat will happen to the transformer size, whether it will increase?

4 Answers  

---

when transformer in load condition neutral earth testing wheater we can do it or not

1 Answers  

---

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

0 Answers  

---

---

Why hydropower stations are preferred solution for meeting peak loads in grids?

0 Answers  

---

how many by pass system in online UPS.

4 Answers  

---

what are the colour's and their indications in bucholz relay?

4 Answers  

---

what is meant by switch fuse unit ?

3 Answers   Thermal Powertech Corporation India Ltd TPCIL,

---

WHAT IS THE DIFFERNCE BETWEEN AIS AND GIS IN SWITCH GEAR?

5 Answers   L&T,

---

what is the major difference between dc generator and synchronous generator?

4 Answers  

---

I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

---