All methods of neutral point connection
(resonant grounding, isolated, solid or
low-resistance grounding) are reliably
dealt with. The unit can issue single or
three-pole TRIP commands as well as
CLOSE commands. Consequently both
single-pole, three-pole and multiple autoreclosure
is possible.
Teleprotection functions as well as
ground-fault protection and sensitive
ground-fault detection are included.
Power swings are detected reliably and
non-selective tripping is prevented. The
unit operates reliably and selectively
even under the most diffi cult network
conditions.