hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible

0 Answers   Engineers India, Engineers India Limited,

---

What are the three major categories of error?

0 Answers  

---

1kva=how many kw & amps

4 Answers   Jakson,

---

what is mean by Digital Logic Meter (DLM)

0 Answers  

---

Which motor is suitable for mixer grinders.

12 Answers  

---

---

why we use to always generate power below 16kv.why not at higher voltage?

3 Answers  

---

a solar energy installation utilizes a three phase bridge converter to feed energy into power system through a transformer of 400v/400v.the energy is collected in a bank of 400v battery and is connected to converter through a large filter choke of resistance 10ohms.1.the maximum current through the battrey will be.2.the kva rating of the input transformer is.

1 Answers   GATE,

---

A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

0 Answers  

---

explain different losses in a transformer.

0 Answers  

---

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 basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

0 Answers  

---

Do you know how to connect a motor of different H.Ps?

5 Answers  

---