Why all voltage level are multiples of 11, like 220V, 440V,
1100V instead of 200V, 400V, 1000V?
Answer Posted / sreeknp
when converting average value to r m s multiplication factor
is 1.11 hence voltages
| Is This Answer Correct ? | 4 Yes | 8 No |
Post New Answer View All Answers
what is the differences between microprocessor and general purpose computer
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
nwhat are the main Components of servo motor?
Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?
I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com
i want to model paper for section engg.
What is inrush current?
What will happen to the protection and metering, if the polarity of a single or two PT/PTs in three phase system is reversed? Please provide reference if any.
What is icu and ics in Acb and how many time icu or ics passes from breaker?
Why syn. Generators are used for the production of electricity?
Why cables and busbar both needed in LT Panels?
132/6.6ππ πππππππππππ πππππππ πππ πππ πππππ πππ πππππππππ. πΈ'ππ πππππππ πππππππππππ ππ 6.6ππ/415π πππ πΈ πππππππ πππππππ ππ ππππ πππππ πππ ππ ππ 13/6.ππ πππππππππππ?? πΈπ π½π.. ππππ π ππ’??
What is rotating magnetic field?Discuss elaborately.
How does HT work & Voltage required?
What descriptive information does the NEC require to be marked on all conductors?