Why is the earth fault relay connected to the Yellow Phase?

4 Answers  

---

Why Earthin is not required in Xformer primary side when it is in Star / star?

2 Answers  

---

For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

1 Answers   L&T,

---

How can Inductive load reduce the line voltage of HV transmission line and vice versa Capacitive load?

1 Answers  

---

Explain the Term in CT Name Plate – Class: 5P10

6 Answers   Jindal, SRES,

---

---

what r Grid stations?what r there role.Explain in detail

1 Answers  

---

it says in neutral wire current flows under normal condition, but when we put tester it wont glow, why?

7 Answers   HCL,

---

How will earthing is making for Aeroplane?

5 Answers  

---

if we convert ampers into kw,which one formula use by us,pls tell me?

11 Answers   ABB,

---

if we know Fault level say 25 KA , How to decide busbar size for Distribution network of 1000 Amp Breaker ? Sample Calculation or Farmula Available or not ?

4 Answers   TCS,

---

IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE CABLES

2 Answers   Cable Wireless,

---

why dc supply is not applied for step up or down in transformer

3 Answers  

---