Figure 35: Asymmetric Propogation Delay Times - GE MiCOM P40 Agile Technical Manual

Single breaker current differential (with distance)

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Chapter 6 - Current Differential Protection

Figure 35: Asymmetric propogation delay times

The GPS synchronised values at terminal A (tA1, etc.) can be individually compared with those at terminal B (tB1,

etc.) to derive the bias and differential currents. The propagation delay times are not required for the derivation of

the bias and differential currents, but they can be calculated individually as tp1, and tp2, and they are stored for

potential use if GPS synchronisation fails.

P54x1i-TM-EN-1

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