Answer / nithi

yes.The poles changes for every half-cycle of ac voltage.

Because the polarity of AC voltage is continuosly
changing for every half cycle.
so, interchanging of terminals in ac system
does not show any difference.That's why the ac solenoid
attract the plunger eventhough it's terminals are
interchanged.

Why line VTG = √3 phase VTG in star? How?

0 Answers   Endurance International Group, Infosys,

---

Where do we adjust the setting of thermal over load relay & how cal calulate.

1 Answers   Hilton,

---

what is MFD value in capacitor?I have 201 Kva load & reactive power is 150 Kvar. so how it is calculated?

2 Answers   IIT,

---

which MPU register provides the address from which the next instruction byte is to be fetch?

1 Answers  

---

Grid fault level [KA]?

0 Answers  

---

---

How to design the earth grid for lightning protection in an industry

2 Answers  

---

Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

0 Answers  

---

sir what is the purpose of SF6 in HT breaker and what is the pressure should be maintain in the breaker?

2 Answers   Kirloskar,

---

Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

0 Answers  

---

What is the end effect of linear induction motor ??

0 Answers  

---

why power not passes in plastic and rubber material

0 Answers   GPG,

---

How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

0 Answers  

---