What is “pu” in electrical engineering?

0 Answers  

---

what is the difference beteen differential protection and over current protection of an alternator

2 Answers   GVK,

---

In UPFC,What is the need for Dc link ( DC capatior)?

1 Answers  

---

why PT transformer primary r the grounded?

2 Answers   L&T,

---

what is the difference between Inverter and ups

1 Answers   L&T, MTS,

---

if we increase frequency of line, then how will string efficiency varies with it.

2 Answers  

---

why put integration for capacitorand differation for inductance

1 Answers  

---

what is the purpose of the armored for the power Or control cable? How to select the type of the armored?

1 Answers   Siemens,

---

what are different type of triping equipmen like MCB,MCCB and their differences

3 Answers   ABB, Schneider, UPPCL,

---

what is the size of ht cable of 33kv ht line and transformers ratings are 2.5mva and 5.5mva.please send formula also.

1 Answers  

---

Star & delta kis principale pa hai.

3 Answers   ME,

---

a.c&d.c motor&generator

2 Answers   Vizag Steel,

---