Difference between RCCB, RCBO and ELMCB.

0 Answers   Megatron Solutions,

---

what is saturation in transformer

9 Answers   Essar,

---

Kindly give the brief explanations for checking 12.5 kvar 440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors microfarad values. what is the microfarad values for the above four type of capacitors, and give the formula explanations briefly. I know F-50HZ, voltage, and capacitor.

1 Answers  

---

can some one clearly explain why -48 volt DC use in telecom site????

0 Answers  

---

how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

0 Answers  

---

What is the diameter of electromagnetic field around a 11000/415v transformer ? Dose it affect people who live 3-4 meter beside it?

0 Answers  

---

where AVR is connected in power plant.

7 Answers   ABB, Saudi Red Bricks,

---

Which of the following can be operated at higher frequencies ? -SCR -MOSFET -IGBT

4 Answers  

---

two transformer connected in parallel.tap change are different.if i want to on the buscoupler what happen?

1 Answers   Essar,

---

i(1)= j0.5 p.u., i(2)= -j0.5 p.u., i(0) =j1 p.u. What kind of fault it is-- a)l-l ,b)l-l-g, c)l-l-l-g, d)l-g.

2 Answers   Areva,

---

Dear all, kindly give me the details of leectrical design engineer course details/institute in hyderabad /any where in india.

1 Answers   Reliance,

---

Why using synchronising methed in DG's sets?

0 Answers   Juniper Networks,

---