NPR550 series microcomputer protection device (continued 1)

The NPR550 series digital factory transformer protection and measurement device is suitable for use in systems with voltage levels of 110kV and below that are grounded or ungrounded through arc suppression coils. It serves as a protection, measurement, and control device for feeders, power supply incoming lines, and section switches. It can be installed locally in centralized group fire switchgear and fully supports the comprehensive automation system of transformers and distribution stations.

NPR550-U1H digital line protection and measurement device: suitable for feeder lines
NPR550-U2H digital line protection and measurement device: suitable for incoming lines and section switches