Why cannot we insulate HT over head cable to avoid ionization of air around the HT Cable?..By this we can minimise corona loss also..

1 Answers  

---

What is the difference between MCB and Earth MCB? What is the working principal of MCB?

2 Answers  

---

what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)

0 Answers  

---

what is the condition for vector group of Dyn5

2 Answers  

---

What is power factor? Whether it should be high or low ? why?

9 Answers  

---

what is rotatng magnetic field in case of three or multiple phase alternating current machines???

1 Answers   NHPC,

---

HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

0 Answers  

---

Transformer diagram mention each parts ?

0 Answers  

---

how do you find making current and breaking current of the circuit breaker

1 Answers  

---

Can 60 Hz transformer be used inplace of 50 hz transfromer?

1 Answers  

---

What is the formuala to calculate the rating of motor protection circuit breaker

0 Answers  

---

solar cell voltage?

2 Answers  

---