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?

2026

---

Define the overload capacity of the motor?

2125

---

Enlist four components of electrive drives.

1895

---

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

2346

---

Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.

2066

---

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3868

---

sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

2289

---

# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

2065

---

Draw a SLD of DG distribution up to main LT panel?

9549

---

Draw a block diagramof Three UPS systems connected in Parallel mode?

2230

---

previous year paper of ntpc bhel for degree in electrical enng

3275

---

What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

2412

---

sir pls send the je exam - 2008 and other model question papers..

2134

---

pls someone send me sample question papers along with the key.thanks in advance

2452

---

Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.

2441

---