BiTRONICS M872 - Legacy

Overview

The BiTRONICS M872 - Legacy is part of the 70 Series Measurement System and is a Modular Dual Line, Dual Bus monitoring and recording IED. GE Vernova's Grid Solutions has discontinued sales of this product and recommends the DR60 as an alternative. The M872 uses common firmware and software to provide fast, precise electrical measurements, fault and event records, and trend logs. It provides flexible interfacing with multiple protocols, including IEC61850, and physical links for constant, cost-effective monitoring and recording. The IED can be fitted with inputs for connection to protection or measurement CTs or both in the same device to produce disturbance records and high accuracy measurements. Operators have the option to monitor status inputs and control relay outputs, and the device can simultaneously provide information and control to multiple clients or masters while offering both copper and fibre Ethernet ports. The M872 uses a modular design with two chassis options and supports in-field addition of optional modules and the separately mounted M870D display. It provides monitoring of system stability with six simultaneous recorders and extensive non-volatile memory, includes GOOSE cross triggers for synchronising records between multiple 70 Series IEDs, and relies on network time synchronisation and application software to manage record collection. The M872 is used for monitoring and recording substation automation applications, including fault recording and monitoring of system stability. It enables cost-effective entry into monitoring and recording tasks within those substation applications. The IED supports operator functions such as monitoring status inputs and controlling relay outputs, and it can provide information and control to multiple clients or masters concurrently over copper or fibre Ethernet links.