Answer Posted / satish kumar(satty)

EMF of a transformer increases with frequency. As a result the transformer can be physically more compact because a given core is able to transfer more power without reaching saturation and fewer turns are required to achieve the same impedance.

What are the major reasons for balancing hydro-thermal mix?

1137

---

what is conductor copnstant of ab cable

1899

---

does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain

1920

---

what are factors to be consider to design a HT & LT motor?

2320

---

whats the differece between Exd and Exe

4938

---

Can any body tell me the different types of LT cables & their application.

2105

---

In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

2295

---

how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

2018

---

In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1819

---

Which do you think is the most significant cause of energy loss in a factory?

2242

---

WHAT R THE SAFETIES IN A HIGH TENSION PANEL N LOW TENSION PANEL. ALSO WAT SAFETIES R THERE IN A 200 KVA TRANSFORMER?

2262

---

how does the thyistor work in dc drive?

1982

---

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

2270

---

for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.

2457

---

please send me privious exam's queation papers of section engineer(electrical).

2059

---