Answer / kiran kumar

neutral is a main role in single phase electrical apparatus because we can't run the equipment with only phase .simply we can said that neutral is nothing but earthing or grounding

Answer / nileshvadera

It provide return path of current.

Answer / bhavesh jaiswal

A)In three Phase, Make star connection,With resistance in each phase. Show in fig.
RED
| RED;Y;B are Phase
R R Resistance
__R____|......N N Neutral
Y |
R
|
B

For Single Phase, Neutral is taken from transformer.
For Two Phase
RED
| RED;Y are Phase
R R Resistance
Y__R____|......N N Neutral

Answer / har

Star point of the transformer winding is the Neutral point and is termed as Neutral.

What is Primary and Secondary Injection Test of CT and Relay.

2 Answers  

---

If we say that an cable of size 3.5X 50 mm sq. can take current upto 140 amps,is it the current of single core of the cable or of all the cores jointly.

3 Answers  

---

What is the meaning of burden and class of accuracy of CT?

1 Answers   Home,

---

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  

---

i have to use generator in my project,which gen. i can use?

1 Answers  

---

For overhead protection we use which transformer?

0 Answers  

---

what is feed back and what are feed back amplifiers?

0 Answers  

---

What is the difference between UPS and SMPS?

7 Answers   Mukand, NightFox,

---

Name the earthings?

3 Answers   HSL,

---

What is disc insulator and it's application..?

2 Answers  

---

Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

1 Answers   ABB,

---

why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

0 Answers  

---