Answer / michael

unity power factor is the best.. but it is impossible to
achieve a unity power factor in actual .

how to calculate the battery Ah? what is the formula.

10 Answers   Cushman Wakefield,

---

Why in Hv transmission line as we see there are generally 6 or more than 4 conductor wires are used instead of 4 i.e. 3 for phase and 1 for neutral wire?????

2 Answers  

---

what is earthing/

3 Answers   B.Tech, CPCL, Mobiserv,

---

If genrator not build up voltage , How u can Manually Excite ?

2 Answers  

---

How much sq,mm cable need for 800 amps load

2 Answers  

---

In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

0 Answers  

---

What is the function of a capaitor in 1-phase IM?

1 Answers  

---

WHY DO VOLTAGE TRANSFORMERS FAIL DURING EARTH FAULT IN THE DELTA CONNECTED 6.6KV ELECTRICAL SYSTEM

0 Answers  

---

Type of cable insulation?

3 Answers   Essar,

---

if single phase is having 220v supply then why three phase is having 440v instead of 660v?

4 Answers   C&S, NTPC,

---

When we change the tap position of 10MVA transformer it suddenly tripped with Out of step indication and also with Static differential relay indication, Transformer Bucholz relay indn and Low oil level indication. Before 1 week the same problem occured by changing the tap position. but at that time only oltc bucholz relay activated. After testing the TxR Relay team & PET team cant find any solid reason. The values are ok also. So plz answer wat's the reason for this incident? anybody plz help.

3 Answers  

---

What is the field weakening mode of a ac motor?

1 Answers   L&T,

---