I've heard that most of the substations are rated in
multiples of 1.11 because of form factor.What is form factor?
Answers were Sorted based on User's Feedback
Answer / vikash
Form Factor= R.M.S value / Average value of current
= 1.11
R.M.S value stands for root mean square. It is defined as DC component of ac current which produces heating effect.
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / prakash
why it is multiple of 11 means 10% considered as line loss
that why all voltage are in multiple of 11 11kv/33kv/66kv
| Is This Answer Correct ? | 2 Yes | 1 No |
If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?
which stabilizer is better ? AVR, Servo Stabilizer, Static stabilizer etc & why explain it
Why the earth terminal pin is larger than phase and neutral in three pin plug top>
We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's
describe the constructional features of an auto transformer and its principle operation
Stepwise process of Northern grid failure in 2012!? (dont copy paste from wikipedia)
1 Answers Rashtriya Ispat Nigam Limited RINL,
I'm looking for a manual set for a Credence ASL-1000 or ASL 3000. Softcopy would be preferred but I'll take what I can get.
Why scr and igbt used in ups systeam ????
what is shunt trip coil? what was the function in rmu?
Why is reating of t/f in kva but for inverter in kw ?
Whether the vacuum contactor requires Short circuit protection?If No,why?
why we cant use AC supply products in DC supply?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)