Advanced Feeder Protection: NPF915
The NPF915 relay protects three-phase electrical networks against directional or non-directional phase to earth and phase to phase faults and under- or over-voltages. This relay has a built-in recloser. It is modular and customisable with up to three I/O or communication cards.
ANSI functions for NPF915:
50 / 51 / 50N / 51N / 67 / 67N / 50H / 51H / 68H / 46 / 46R / 46L / 49L / 87N / 59 / 59N / 27 / 59P / 27P / 47 / 81O / 81U / 81R / 78 / 32 / 37 / 32R / 50BF / 52BF / 21FL / 60 / 74TC / 25 / 79 / 68
This relay is part of the NP900 range, offering multi-function protection and communication using IEC61850, GOOSE and MODBUS protocols (Ethernet and fibre optic communication options available). A full brochure is available on the NP900 range page
ANSI functions for NPF915:
50 / 51 / 50N / 51N / 67 / 67N / 50H / 51H / 68H / 46 / 46R / 46L / 49L / 87N / 59 / 59N / 27 / 59P / 27P / 47 / 81O / 81U / 81R / 78 / 32 / 37 / 32R / 50BF / 52BF / 21FL / 60 / 74TC / 25 / 79 / 68
This relay is part of the NP900 range, offering multi-function protection and communication using IEC61850, GOOSE and MODBUS protocols (Ethernet and fibre optic communication options available). A full brochure is available on the NP900 range page