Answer Posted / sk mazharuddin

Lagging

What happen in ups if phase reverse?

2351

---

Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

1931

---

my bachelors was done with EEE now i got admit in NU with CS as course. how to answer this qns 1) why u choose cs? 2) why u changed from eee to cs

1844

---

what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/

2136

---

WHY SEPARATELY EXCITED MACHINE NEEDS EXCITATION BY DC SUPPLY WHY NOT BY AC

1945

---

What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3863

---

What is the ratio of true power to apparent power in an ac circuit?

1190

---

how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.

2505

---

what is the reactive power what is the use of it in system

2198

---

take 100kva DTR( delta/wye ), what ll happen if we connect 11kv to LT side instead of connecting to HT side? will the DTR behave as a step up transformer or something else????

2312

---

any one can explain the stages of a knee point which is taken during ct magnetising curve.

1818

---

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

1785

---

In Plumbing services What are accessories we consider for a bathroom?

2045

---

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1711

---

Explain the operation of variable frequency transformer?

1189

---