NDR11 numerical relay offers single-phase voltage protection, with a high sensitivity. The relay takes input from an open delta PT to monitor the neutral displacement in a three-phase system. It can also be used for earth fault protection in generators, which are earthed through neutral earthing transformers. The completely draw-out enclosure relay is particularly suitable for protection in all ungrounded or impedance grounded power systems.
Protection offered by numrAL NDR11 - 59N
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