Protection of generators with earthed neutral against phase-to-earth insulation faults
in stator windings. This function may be used to protect generators connected to
step-up transformers
100 % stator earth fault is a combination of two protection functions:
in stator windings. This function may be used to protect generators connected to
step-up transformers
100 % stator earth fault is a combination of two protection functions:
- ANSI 59N/64G1: neutral voltage displacement, protection of 85 % to 90 % of the stator winding, terminal end.
- ANSI 27TN/64G2: thrid harmonic undervoltage, protection of 10 % to 20 % of the stator winding, neutral point end.
Released for:Schneider Electric Nigeria
