Answer / mak

the secondrary ll produce a demagnetising flux which makes back mmf..so more current is drawn in primary side to neutralise it..

Answer / akash

all the time core losses same .but copper losses change due to ambient temp.on full load efficiency maximum.

Why the transformers are rated in kva?

11 Answers   Birla, NTPC, Reddy Labs, Vijai Electricals,

---

hi i am aziz electrical associate engineer. i am faceing problem in acs800 vvvf drive.it is tripping wothout any alarm/fault.i cheaked all parameters and fault function of drive, all are correct as well as communication parameters.but still it is tripping (drive is tripping in running position not in starting)

1 Answers  

---

What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

0 Answers   AFG, Afghan Telecom, GE, IBM, SECL, Sun Pharma, TNPL,

---

what is the difference between PLC and embedded system

3 Answers  

---

in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 Answers  

---

how harmonics are generated due to nonlinear load & how harmonic filters work?

1 Answers  

---

we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

0 Answers   Afflatus Grauver Pvt Ltd,

---

how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

2 Answers   MSL,

---

What happen when change order of CT in GIS feeder?

0 Answers  

---

what is model question rrb junior engineer electrical gr.II

0 Answers  

---

What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

0 Answers  

---

What is BMS System???Types...

4 Answers   Emerson,

---