Figure 94: Zone Timer Logic - GE MiCOM P40 Agile Technical Manual

Single breaker current differential (with distance)

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ZONE TIMER LOGIC

Standard Mode

Basic Scheme Mode

Zone 1 Start Gnd

Zone 1 Start Phs

Alternative Mode

Basic Scheme Mode

Any Dist Start

Figure 94: Zone timer logic

Although the diagram above shows zone 1 logic only, the logic for all other zones follows the same principals.

P54x1i-TM-EN-1

tZ1 Gnd. Delay

tZ1 Ph. Delay

tZ1 Gnd. Delay

tZ1 Ph. Delay

Chapter 7 - Distance Protection

Z1 G time elapse

Z1 P time elapse

Z1 G time elapse

Z1 P time elapse

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