Answer / kumar.latif

To avoid excessive heating caused by high order harmonics
such as 3rd and 5th harmonics which cause increase in
hysterisis and eddy current losses in core. These harmoncis
are the result of magnetising current which is non
sinusoidal.

Answer / geno peter

well, it causes disturbances to the communication systems
nearby ie., electro magnetic waves . its causes unwanted
heating in the core

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

0 Answers   NAL,

---

What are the applications that use Solid State Drives in your home?

1 Answers   L&T,

---

Why more than 2.5 MVA distribution transformers (secondary is 440V)are not used in india.

1 Answers  

---

if one of the phase is failed to 3 phase IM. what will happen?

6 Answers  

---

what is tha online tapping and offline tappchange? which side connected primary or secondary and explain ?

4 Answers   Essar,

---

---

Why the starting current in Induction Motor is very high as compared to normal rated current ????

6 Answers   Essar,

---

A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

0 Answers   TCS,

---

Define heating time constant of electric motor.

3 Answers  

---

What is the rating of a circuit breaker needed for 300 kv load in 33KV supply line of 33/415 transformer ? Whether 800/1200 amp vaccum circuit breaker can perform for a 33 KV line in input in 415 volt in output of the transformer ?

0 Answers   Hira Group,

---

Which of the following plant has less plant factor ? -Nuclear -Hydro -Diesel -Pumped storage

1 Answers  

---

tan delta equation test on alternators

0 Answers  

---

What is the main cause of magnetism?

0 Answers  

---