What is the Working principle of ELCB and RCCB?

1 Answers   Geo Miler, L&T,

---

What is critical disruptive voltage?

0 Answers  

---

How can we convert 11 kv to 440 volt without using transformer ?

0 Answers   Electrical,

---

Why 3 over-current and 1 earth fault relay is used on primary side of transformer? Why 2 over-current and 1 earth fault relay in used on secondary side of transformer?

1 Answers   Adani,

---

in the farm,water tank of 8000 litter capacity situated in 12 meter above.Farm owner want to lift 7000 litter of water within 7 minute to water tank of 12 meter above.which motor having HP rating is suitable for pumping??

1 Answers   ABB, Anchor, Havells, Keltron, KSEB, L&T, vguard,

---

---

what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated

0 Answers  

---

define as synchronous generator

0 Answers   Enercon,

---

Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

0 Answers  

---

Why corona leads to production of Ozone and glow of the color VOILET?

0 Answers  

---

1 tr is equal to how many Kw .is there any specific formula for this to get the result .

13 Answers   Cipla, LG, NSN,

---

How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

1 Answers   Siemens,

---

CAN ANY ONE EXPLAIN THE KNEE VOLTAGE OF THE CT?

3 Answers  

---