Protection Engineering Basics and Schemes Protection Engineering | Page 48

reactance.

Now disturbance of Z b will be adjusted by

Z T = Z c1 +( 2( Z L + Z b) Z c2(( Z L + Z b) Z c2

)

Z T = Z c1 + 2 − − − − −( C1) V s = IZ T Z Lzb = Z L + Z b − − − − − −( C2)

Z c2

V LZb = V s()

Z c2 + Z Lzb but V Lzb = V L + V b

Z c2

V L + V b = Vs()

Z c2 + Z Lzb

Z c2

Now V b = V s(

) − V Z c2 + Z L + Z L − − − − −( C3) b

This equation how reactive voltage suppress burden voltage, which after suppression not disturb output voltage.

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