Ponovo T200A, Руководство по эксплуатации оборудования

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T200A Hardware Operation Manual
34
5.3.8 Directional test
This function can be realized in the AC test of Pick Up.
This unit can make the boundary for power direction relay.

Connect wires as above figure shown.

Select high precision AC test menu as above figure shown.

Set amplitude and phase of voltage/current in the non-action zone of power
direction relay.

Press the
Run
button to output voltage and current values. Change the phase to
make the phase angle of voltage/current move from the non-action zone to the
action zone. During the protection acting period, mark the boundary I; then
change the moving direction of phase, which is also moving from non-action
zone to action zone, then marks the boundary II during the protection acting
period. Thus, calculate the sensitive angle with these measuring boundaries I
and II by the software automatically.