Answer / iamdon

Peterson coil is a highly inductive coil.

It is used as a ground fault neutralizer in RESONANCE
GROUNDING in case of fault/unbalance.

Author:arbelectbit@yahoo.com

Answer / sunil

Peterson coils are used to in ungrounded 3-phase grounding systems to limit the arcing currents during ground faults. The coil was first developed by W. Petersen in 1916.

what are the names and size of various conductors used in transmission lines

1 Answers   NTPC, Power Grid,

---

How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 Answers  

---

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

0 Answers   SRA,

---

if vcb make contact but output notreach give the reason?

2 Answers   VVF India,

---

Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

0 Answers  

---

What is the difference between Welding Transformer and Normal Transformer?.

2 Answers   DAE,

---

HOW TO CALCULATE THE CAPACITOR RANGE FOR LOAD FOR PF IMPROVEMENT? EXPLE:FOR 65 HP LOAD HOW TO CALCULATE CAPACITOR RANGE?

12 Answers   Al-Malik, All Star Electric, GEC, Reliance, Universal Industries,

---

what is KA rating and how can we choose switchgears on applications

0 Answers  

---

if the back emf eqution for dc motor EB=(QPNZ/60A) THEN what is the value of A for PMDC MOTOR OR how can dicide the value of "A"

2 Answers   BSL,

---

hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds

0 Answers  

---

What is the difference between voltages or potential difference? And what are they?

0 Answers  

---

difference btw neutral and ground?

2 Answers   ERG,

---