Answer Posted / pnverma19

Q=tanø1 - tanø2

ø1 & ø2 is angle between V & I

HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM

1921

---

hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

2039

---

what is meant by poly phase induction motor ? how its operating by single phase or three phase?

2208

---

What is CCT (Correlated Color Temperature) ?

2005

---

why zero sequence impedance measurement is not applicable for single phase GT

2249

---

HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

3994

---

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

2395

---

what are the installation procedure of high voltage power transformer,CT,CB&PT?

2123

---

Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1957

---

y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

2045

---

Why front mounted CT polarities are always towards breaker?

2057

---

What is the types of HT motor testing

3652

---

Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1850

---

What is FTA card? How it works?

2280

---

what is earthing.how we make it,describe briefly.

2656

---