Toshiba GR-200 Series Instruction Manual page 60

Multi functional protection ied

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6F2T0200 (0.15)

Earth fault protection (EF)

The earth fault protection (EF) function has four stages (elements); each element can have

either a directional characteristic or non-directional characteristic.

To simplify the description, only EF1 is discussed but is applicable to the other EFs; hence,

read the expression for EF1 as EF2, EF3 and EF4 at each EF stage unless a special explanation

or instruction has been provided.

GRE200 (1,2)

Chapters

Gre200-1 Gre200-2