P546 MCL

For joining our discussion groups: https://elec-engg.com/whatsapp-group-for-protection-engineers/ – I have set the under-voltage limit at 9.4kV (94kv, pt ratio 11,000/110, But relay trips at 9.47kV. what to do?– Make the vt connection vpp+vr. V peak to peak and v residual. In the configuration choose vpp+vr – can support and provide abb 230kv gis maintenance procedures.– I […]