Answer / vikram singh

its not that technical theory..its just wot u chosen that time..like..in the begining..when power generated..at dat time..there were lack of resources and not that effective module as well..the desired freq. was considered 50-60 as transmission losses and noise and some other factors kept in mind.arc lamps were trending that time..and they woked well at 60 because lamps flicks at lower freq. so they started using 110v-60hz..and europe too..but after that 230v-50hz power also considered good..so after 2nd world war.as europe lost everything..so they just have to start with new equipments..so they chosen 230v-50hz & also india as england was ruling..and all setup was chosen by them..and so almost whole europe and asia..australia chosen this..and we cant change it now as we we have to change all equipments and that costs very high..so its goin on.. hope this helped u :)

Do you know how to measure the earth resistance?

7 Answers   Manhattan,

---

Explain the purpose of inductor in an electric circuit?

0 Answers  

---

why the voltage level in transmission line are in multiple of 11kV, 22kV, 33 kV etc..( i.e., 220 V )?

4 Answers  

---

How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

---

what are pilot cells

0 Answers   KSEB,

---

what is mean by current? and voltage?

4 Answers  

---

what are the different types of transformers in present? which transformer is efficient?

1 Answers   TATA,

---

A 25MVA 3300/400V T/F is termed as per winding is …… a) primary 3300V & Secondary 400V b) primary 3300V & low voltage winding 400V c) High voltage winding 3300V & Secondary 400V d) High voltage winding 3300V & low voltage winding 400V

4 Answers   Engineers India Limited,

---

WhY PF low at Time of PT Missing in HT Meter

2 Answers   HCL,

---

How many types of timer ?which timer are used star delta feeder

1 Answers   BMM Ispat,

---

why we use 50 hz frequency in india .. why not 60 hz 

3 Answers  

---

What is meant by SPS Aluminium pipe in substations? Anyone knows whats this?

1 Answers   Amec,

---