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why the transformer secondary voltage is more than the load
end voltage like t/f 11KV/433V for 415V(terminal voltage)
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Answer Posted / kapil
The regulation of transformer is same as it's percentage
impedance. this means the secondary voltage will drop @ 5%
for a transformer having 5% impedance. to compensate this
internal voltge drop we select nominal tap setting to 433
v. if you keep nominal tap for 415 V, we can not properly
utilize tapping range as 5% is internal drop at full load.
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