Answer / er. sanjana singh

ac current is flow in alternating nature & it have frequency.
dc current is direct current and flow in straight direction & dc current has no frequency..

Answer / sureshkumar

ac current has skin effect,corona losses and dc current does not having skin effect,corona in transmission lines 


ac transmission can change voltage levels by using step-up transformers and in dc it is not possible

Answer / sureshkumar

in ac we can change voltage levels by using power transformers 
and in dc can not change voltage levels because we not using power transformers

Answer / syamkumar

ac current changes it's magnitudeand it has frequency but
dc cureent doesn't changes it's magnitude and it didn't
have frequency.

define bilateral network and unilateral network? give an example.

3 Answers   ABB,

---

What is Co-generation in the context of electrical power systems?

1 Answers  

---

what is the difference between neutral and earth

0 Answers   LOreal,

---

What is the functaion of IGBT in UPS system?

1 Answers  

---

Transfer function is == ? a. Mathematical model b. System with no physical structure c. Can be calculated through differential equations

1 Answers   CCP,

---

what is acceptance test in electrical engineering.

0 Answers   ABB,

---

define main transformer?

7 Answers  

---

features of hbc fuses

0 Answers  

---

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 Answers  

---

why does not tester light up when it is touched to neutral of 3 pin socket.

4 Answers  

---

What is mean demand of the Plant?

2 Answers  

---

I have 500A load (WHICH IS SEPARATE MDP PANEL),an MCC panel with 4000A Breaker.Already I have 2500A load.Can I connect this load directly to the Busbar since I have PROTECTION IN MY MDP Panel ?

4 Answers  

---