why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V,

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why the voltage transmission is always in a multiple of 11?
e.g. 110 V, 220 V, 33 kVA, 11 kVA

Question Posted / fish_in_pond04

16 Answers
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why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / lucky dhiman

becoz the form
factor for a.c sine
wave is 1.11 so
transmission
voltage will always
bi multiple of
11. . . . . .

Is This Answer Correct ?

2 Yes

4 No

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / ranjeet chaurasiya

It can not be given a very exact technical reason on the basis of form factor because at EHT level we see that 800kV. We can say its an arbitrary standard from starting days of transmission of electricity to make uniformity all over the country.

Is This Answer Correct ?

2 Yes

4 No

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / anil singh

IT IS DIRECTLY RELATED TO THE FORM FACTOR.I STUDIED POWER
SYSTEM AT LONDON UNIVERSITY AND I KNOW QUITE WELL THIS
ISSUE.

Is This Answer Correct ?

2 Yes

4 No

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / sushendu ghosh

This is due to the design of core of transformer.The core is
selected in a standard manner by using standard tabular formula.

Is This Answer Correct ?

4 Yes

7 No

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / d.k.gupta

Because transformer ratio,voltage is directly proportional
to number of turns.

Is This Answer Correct ?

8 Yes

20 No

why the voltage transmission is always in a multiple of 11? e.g. 110 V, 220 V, 33 kVA, 11 kVA..

Answer / engr.mohamed ehab

there is 13.8 KV (medium voltage) in Saudi Arabia and also
the 3 phase volt is 380 or 4oo or 440 or even 220 and 110
all of this aren't able to be divided by 11 so its not a
certain condition but its a standard values which is
unanimous by all engineering associations

Is This Answer Correct ?

4 Yes

17 No

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