NDB SPI-III-PFS Power Flow Sensor

The Power Flow Sensor optional sensor enable the user to confirm the direction of power (inflow Vs Outflow) in insulated MV and low voltage terminations.



SPI-III’s unique design consists of a wireless bi-module combo that is stunningly easy to configure and operate. With many advancements and innovations, SPI-III will be more helpful than ever before, enabling field applications such as identification of A-B-C electrical phases from all 50 and 60 Hz networks, switchgear phase concordance (matching), phase rotation, system paralleling, underground phasing applications and more.


• True Phase Identification System
• Works on all voltage levels
• Intuitive graphical readings
• Direct & non-contact phasing
• Accurate GPS satellite technology
• Robust wireless communication
• Field-proven rugged design
• Holdover mode (no GPS coverage)
• Differed mode (no cell coverage)

Additional information