Answer / sugun_eee

In Induction motor rotor, each phase winding will be
identical and equivalent in parameters. Hence for balance
star connection there will not be any(circulating) nuetral
current at star point. there by............

Answer / sugun_eee

DEAR
YOUR REPLY ITSELF STATING "IN CASE OF FAULT" AND ALSO NO
EXERNAL FORCES WILL CAUSE TO DAMAGE THE ROTOR CKT. UNTILL
UNLESS INSULATION FAILURE FOR THE ROTOR WINDING. HENCE IF
THE ROTOR IS HEALTHY IT WON'T BE EARTHED. AS UR STATEMENT
IT WILL CREATES HEAVY VIBRATIONS AND COUSES MOREHEATING OF
THE STATOR.

Answer / harendra

but in case of fault , there will be unbalance so i think
neutral should be grounded.

In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematicaly both are same but in realy how it is differ ?

3 Answers  

---

Why the suply frequency in INDIA is 50HZ

2 Answers   HCL,

---

As a good company employee, can you report your supervisor to the company management if he or she is going against the company interest in his or her actions?

3 Answers  

---

why transformer core is eathed?

7 Answers   ECE,

---

why we use crushed stone in switch yard?

3 Answers  

---

in shunt clippers why a resistor is used in sereis with the input

0 Answers  

---

What is CBCT ,why and whereit is used?

2 Answers  

---

If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

0 Answers   Amara Raja,

---

In our factory there is one no. of Series trip HT 6KV OCB. 1. Is it possible to measure CT out put current by 440V Clamp meter? The measurement is required for knowing the exact value of current in CT secondary to set up protection for transformers. 2. plase forward the single line diagram of AMF panel?

1 Answers   HAL,

---

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

1 Answers  

---

Is 3 phase induction motor can work as a generator?? if so why & how??

2 Answers   Jindal,

---

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

0 Answers   Bhel,

---