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Electric Power Distribution Engineering, 3rd Edition by Turan Gonen

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Chapter 9

Distribution System Voltage Regulation

Nothing is so firmly believed as what we least know.

M.E. De Montaigne, Essays, 1580

Talk sense to a fool and he calls you foolish.

Euripides, The Bacchae, 407 B. C.

But talk nonsense to a fool and he calls you a genius.

Turan Gönen

9.1 Basic Definitions

Voltage regulation: The percent voltage drop of a line (e.g., a feeder) with respect to the receiving-end voltage. Therefore,

% regulation= |Vs||Vr| |Vr| ×100 (9.1)

Voltage drop: The difference between the sending-end and the receiving-end voltages of a line

Nominal voltage: The nominal value assigned to a line or apparatus or a system of a given voltage class

Rated voltage: The voltage at which performance and operating characteristics ...

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