Answer / abdul samad

If ur Load is balanced in three Phase supply system Neural
current is Zero . neutral current is always depend on the
Unbalance load. So in Case of 3 phase system neutral bus
taken half of Main bus.
but in case of 1 phase supply system neutral is the return
cunductor and phase current will be equal to neutral curent.
so In 1 phase neural would be of same size.
as In three phase, current in neutral in one third
of phases so conductor size is less. but in single phase neutral conductor size should be same as phase conductor size

Hai, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to yuva_polisetti@yahoo.co.in

0 Answers  

---

Why do we require transformer with less specific weight if supply frequency is increased?

0 Answers  

---

How cable from Kit-Kat to main switch, from starter to motor are designed?

0 Answers  

---

what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

---

wat is power factor

7 Answers   IOCL,

---

---

While testing the value of the resistance for the earthing rod, two auxillary rods are connected to the earthing tester.What is the working function of a earth tester?

0 Answers  

---

In Transmission System if the potential difference at the two end of line are same then is the transmission of power will continue ? if yes then how.

1 Answers   IOCL,

---

how motor should be connected i.e star-delta or star-star or delta-delta ?

3 Answers   GSE,

---

sir i want previous entrance exam papers for written test

0 Answers   Vizag Steel,

---

why is that a 4*4mm cable,is always powdered internally

3 Answers   Construction, L&T,

---

do we use links in a dc circuit?if so what s its use in it?

0 Answers  

---

what is the function of fire alarm system?

5 Answers  

---