Answer / iamdon

This is done for AVOIDING THE HIGH MAGNETIZING CURRENT
requirement as explained below.

The magnetising current is the amount of current required
to force the working flux into air gap and meet the core
loss.The magnetising current is directly proportional to B
(average).In the case of magnetic saturation,the value of B
becomes high.So we require more magnetising current to force
the same amount of working flux into the air gap.More
magnetising current is of course not desirable because it will
create heating problem.

Author:arbelectbit@yahoo.com

Answer / nithi

good answer.

High magnetising current leads to poor power factor & the
machine draws more current ,which increases losses (core
losses as well as copper losses) ultimately the system
insulation break down -total machine failure.

Answer / iamdon

Thanks..Nithi for elaborating the answers

Author :arbelectbit@yahoo.com

what is difference between DC and Ac

5 Answers   Birla,

---

What is a current transformer?

2 Answers   KEPL,

---

How to know vacuum in vacuum cylinder of breaker in working condition

0 Answers  

---

What is the difference between an ELCB and a RCD?

2 Answers   Schneider,

---

what is the requirement of commutator in a universal motor?

3 Answers  

---

What is cable size of motor if starting current is 15.6 Amperes??

0 Answers  

---

What is annunciator ?

1 Answers  

---

Basic motor transformer generator

0 Answers   eCentric Solutions,

---

How to calculate VCB rating for 33KV ,25 MW Power line?

0 Answers  

---

To avoid arcing what we connect in earthing.

4 Answers   HAL,

---

can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you

0 Answers  

---

capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

5 Answers   Bhel, OPS,

---