Answer / manoj kumar sahoo

A ballast & ignitor is required in MH & other lighting
fixture because its takes high voltage in starting and
normal voltage in running periods.

Answer / k.prakashchandra

They create high voltage initially to strike the arc, then
the ballast limits the current as the resistance of the bulb
becomes zero due to ionization.

Why 36 KV LA is used in 33 KV Line and 9 KV LA is Used in 11 KV Line

1 Answers   APTransco, Bhel, Wipro,

---

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

1 Answers  

---

How to Make relay co ordination chart for a Electrical power distribution of a plant

0 Answers  

---

How many input terminal of single phase transformer.which is use for rural power distribution.

1 Answers   RMSI,

---

What is class 2 coordination ?

2 Answers  

---

What is 2P*0.5 sqmm screened copper cable and what is the use of it..?

1 Answers  

---

how calculate busbar size for rated amps, which formula use

2 Answers   Rites,

---

defined power system?

3 Answers   Spanco,

---

What is the distance between body earthing and neutral earthing.?

1 Answers  

---

what are the oils used in transformers cooling? n which type transformer is used in power systems?

1 Answers  

---

if we convert watt into kva,which one formula use by us,pls tell me?

16 Answers   ABB,

---

Why neutral point is consider as zero potential?

0 Answers   Equate,

---