I need to test relay (Directional earth fault protection - ANSI code 67 N). I have a Vref=230Vrms, 50Hz.
I have to apply a voltage V0 to the input relay (Zrelay 2kOhm, Pn 32mVA).
V0 must have the following characteristics:
1) regulable 0-8 Vrms
2) with the phase angle regulable to step angle -54°,-66°,-90°,-114°,-126°,-180°,-244°,-256°,-264°
Who can help me?
I have to apply a voltage V0 to the input relay (Zrelay 2kOhm, Pn 32mVA).
V0 must have the following characteristics:
1) regulable 0-8 Vrms
2) with the phase angle regulable to step angle -54°,-66°,-90°,-114°,-126°,-180°,-244°,-256°,-264°
Who can help me?