What is different bewteen low or high impedance busbar protection scheme

0 Answers  

---

What happens when ac supply is given as excitation voltage instead of dc supply

1 Answers  

---

What happen if the 24 volt DC supply is disconnected from air circuit breake ?

2 Answers  

---

what is the current rating of 2500 KVA,33KV/433v transformer on secondary(LT) side

9 Answers   Reddy Labs, Vitrum Glass,

---

How to earth the star delta connected transformers?

1 Answers   UPPCL,

---

name the famous power plants in ap and vwhere it is located with capacity details

1 Answers   BARC,

---

what is cascade speed control device?and how this device control the speed of motors?

0 Answers   ABB,

---

What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

0 Answers  

---

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

1 Answers  

---

Why we can't start a tube light without a starter(choke) and an inductor?

1 Answers  

---

sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence

0 Answers   Bhel, TNEB Tamil Nadu Electricity Board,

---

what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

---