What is a parabolic signal?

0 Answers  

---

Explain and give examples about VCB?

0 Answers   AZ Engineering, Vodafone,

---

why characteristics of overcurrent relay is time-->psm instead of time-->current?

0 Answers   ABB,

---

what is protection class current transformer.

1 Answers   Matrix,

---

why when i start my diesel generator it takes 1 minute or less then stop, and i checked the oil sensor is ok and when the generator start i can get 220 voltage but it it is stop after 1 minute or less, how can i solve this problem?

1 Answers  

---

For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 Answers  

---

Testing procedure of DG alternator stability test

0 Answers   Amprotec,

---

what does mean for "mah" for mobile batteries like 1500mah,1300mah??

2 Answers  

---

What is differential relay ? where it can be used?

1 Answers   Scope International,

---

how to diffrentiate between ac & dc motors from a distance

5 Answers  

---

what is the difference between earthing and unearth

0 Answers   Apple, NTPC,

---

What is the function of turbo charger in generators

1 Answers  

---