Answer / neeraj pandey

voltage value is the Line to Line Voltage. Line to line
voltage is the voltage between any two phase lines.
In single phase there is one phase and another is earth wire
and voltage between them is 230V approx.
In two phase the line voltage is 1.732 times of the single
phase voltage and the value is 415 V approx.

In three phase system the value of voltage between two
phases are taken which is same as two phase system.

if we take the voltage diff between all three phases it will
be ZERO..

Answer / pillay

Single phase voltage is 240 volts and two
or three phase voltage is 415v because
the voltages are actually spaced 120 degrees
in between them in a cycle .Further more you
measure the potential difference in between
any of them.

from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

---

Any one can explaination about calibration with rotating sub standards?

0 Answers  

---

What do you mean by nominal ratio of instrument transformer?

1 Answers  

---

please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

0 Answers   Jindal,

---

why the excitation is necessary to produce the reactive power

2 Answers  

---

What's an AVR? What's its purpose in Generators?

4 Answers  

---

what will be the minimum megger value for 132 Kv (earthed) potential transformer

3 Answers  

---

If one d.g. is unable to take full load of system, then second d.g. will take care of partly Load.for this condition RPM of both DG set should be equal.By using Synchronization panel RPM of dg sets are match, is it true?

1 Answers  

---

what are the 6 terminals of the motor plss give me in details

5 Answers   Siemens,

---

The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

1 Answers   Engineers India Limited,

---

How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

0 Answers  

---

Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

0 Answers  

---