The Bitronics M872 IED provides a complete solution for monitoring and recording in substation applications. The advanced measuring, recording, and communications characteristics and utility-grade construction make it suitable for applications in AC distribution and transmission systems.

The Bitronics M87x Monitoring and Recording devices provide a complete solution for applications in AC distribution and transmission systems where a combination of utility-grade construction, measurement, communication, and recording are needed.

The M872 complements relays by providing independent, higher-fidelity waveform capture. It has two waveform recorders and also provides two disturbance recording modes and trend recording not typically found even in the most advanced digital relays. In addition, it provides functions such as fault location and SCADA communication to automate a substation where electro-mechanical relays are in place. The split-core CT option simplifies installation without the need for an outage.

Applications:
The M872, through its multi-mode recording and its ability to make high speed,
high accuracy measurements, provides the information necessary to analyze:
• Network faults
• Reactions of the protective devices
• Dynamic response of the network
• Long-term trends
• Revenue readings at interties
• Substation equipment performance