what is difference between earth fault& restricted earth fault.

3 Answers  

---

what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?

0 Answers  

---

11 kv line me tino phase takra jaye to present time me approximately voltage aur current kya hoga...

2 Answers   Electrical, Electrical Tech, Videocon,

---

two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?

1 Answers   Bhel, Birla,

---

what is meant by 3rd hormonics ?

0 Answers   VRVS,

---

Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?

0 Answers  

---

How will polarity test of Dy5 Transformer ?

0 Answers  

---

what is the difference between diode and zener diode?

4 Answers  

---

How earthing of switchgear system to be done.

0 Answers   KSEB, L&T, Siemens,

---

Mention the methods for starting an induction motor?

0 Answers  

---

Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

21 Answers   College School Exams Tests, HC, HCL, Jaypee, JPMorgan Chase,

---

At what load maximum effiecency will be obtained Distribution transformer and Genarating transformer Pls clarify?

4 Answers  

---