MM3™ INTELLIGENT SENSOR
Sentient’s MM3™ line monitor is a powerful Linux-based sensor designed to be the basis of a diverse set of distributed applications deployed across the grid. The MM3, itself, is outfitted with a sophisticated set of sensors which are carefully calibrated at the factory for full NIST traceability.
Powerful Platform for Advanced Applications
This sensing and measurement capability includes current, conductor temperature, and voltage characteristics, as well as an onboard accelerometer, GPS for location and precision clock, and secure Bluetooth® for local communications. Wireless communications is included in the MM3 allowing all data, notifications and updates to be communicated over the air.
Designed for the most demanding utility applications
The MM3™ is designed for a long, maintenance-free life. Sentient’s patent-pending power harvesting technology, IBOLT™, generates all the power the MM3™ needs from the magnetic field surrounding a conductor carrying as little a 6A – no solar panels to clean, no batteries to change and no pole-mounted equipment required. Installation takes minutes.
Advanced Applications Installed Wirelessly – Where and When You Need Them
A growing family of advanced software “apps” leverages the MM3 core sensing capability to deliver unique functionality in the field. Apps are installed and configured wirelessly much like apps are installed on a Smartphone. This allows the utility to pick and choose the specific apps needed at various locations on the grid and configure those apps to perform as needed.
Key Features Include
The MM3 platform enables all apps to process captured data locally – categorize faults, analyze trending data, derive useful metadata and generate essential alerts and notifications – effectively turning raw data in the field into focused, actionable intelligence in the office. This local processing greatly reduces the burden and data charges on the wireless communications network by transmitting only key event information, in real time and by exception, while forwarding detailed data only upon operator request or when bandwidth is available.
Re-defining the Conventional FCI
Traditional fault indicators have long been used to assist patrolling line crews with finding the location of a fault. These FCIs were useful, but their functionality, reliability and lifespan were limited. Sentient’s MM3™ Line Monitor running the cFCI® app combines advanced fault detection algorithms with the MM3’s line-powered, wirelessly communicating sensor platform. With cFCI®, an operator can dispatch the crew to the correct location based on an immediate alert notification and the daylight-visible LED that tells the crew they’ve arrived at the proper site.
Key features include:
- Fault current measurement
- Fault magnitude measurement
- Multiple fault detection algorithms and in-rush restraint options
- Fault waveform (oscillography) capture
- Loss-of-source detection
- Impervious to adjacent ﬁelds and high-frequency false tripping
- IEEE 495-2007 compliant
- NIST traceable fault and load measurements
- Immediate conﬁrmation of service restoration
Advanced Power Management Reduces O&M
Sentient’s patent-pending IBOLT™ power-harvesting technology generates all the power needed for real-time fault detection and wireless communications. IBOLT generates sufficient power even from low current distribution lines, eliminating the need for unreliable solar panels, failing batteries, pole-mounted RTUs, or other secondary power requirements.
Powerful Platform Offers Advanced Applications
The cFCI app takes advantage of the Sentient MM3’s powerful Linux-based design that features gigabits of local storage and runs sophisticated software applications. This powerful platform enables cFCI to operate as a superior fault detection device while simultaneously running other optional apps including interval load logging and advanced waveform analytics.
Fully Programmable and Wirelessly Configurable for Simple Upgrades
MM3-based apps such as cFCI are wirelessly configurable allowing parameters to be adjusted as needed to address changing requirements and unique situations. Parameters can be altered “over the air” at any time to all or a subset of MM3s. Operating system and application software can also be upgraded wirelessly, as needed, to ensure many years of reliable service.
Reduce Risk by Making Decisions on Facts … Not Estimates
Sentient’s MM3™ Line Monitor running the Log-I app continually measures current, temperature, and the electric ﬁeld by capturing 130 samples per cycle. Log-I preprocess this data on the device, itself, to extract critical information and derive accurate line conditions. The Sentient Log-I app lets you maximize asset utilization without increasing your risk of outage by basing decisions on accurate, real data rather than best-guess simulations or state estimations.
Accurate Data Enables Optimal Planning
Sentient Log-I provides alerts and daily peaks for convenient system monitoring. Based on accurate interval data, Log-I sends detailed information to Sentient’s Ample Analytics platform, including:
- Average interval load and conductor temperature
- Daily maximum and minimum current
- Daily maximum and minimum temperature
- Positive excursion over current threshold
- Negative excursion below current threshold
- Positive excursion over temperature threshold
- Negative excursion below temperature threshold
Powerful Platform for Advanced Applications
The Log-I app takes advantage of the Sentient MM3’s powerful Linux-based design that features gigabits of local storage and runs sophisticated software applications. This powerful platform enables Log-I to process captured data locally, analyze trending data, derive useful metadata, and generate essential alerts and notifications — effectively turning raw data in the field into focused, actionable intelligence in the office. This local processing greatly reduces the burden on the communications network by transmitting only key event information, in real time and by exception, while forwarding detailed data only upon operator request or when bandwidth is available.
Fully Programmable and Wirelessly Configurable to Address Evolving Needs
MM3-based apps such as Log-I are wirelessly configurable, allowing parameters to be adjusted as needed to address changing requirements and unique situations. Parameters can be altered “over the air” at any time to all or a subset of MM3s. Operating system and application software can also be upgraded wirelessly, as needed, to ensure many years of reliable data logging service.
Signiﬁcant Events Trigger Immediate Alert Notiﬁcations
Sentient’s MM3™ Line Monitors running Sentient Waveform enables utilities to analyze network events by capturing, bounding, and analyzing the unique waveform signature generated by the event. Detailed oscillography can be captured at all deployment locations across the distribution grid allowing for precise event location, measurement and cause diagnosis. Complete waveform data is stored locally on the MM3 Distribution Line Monitor and is available to download, if needed, allowing for detailed evaluation of power line disturbances.
High-Resolution Means Optimal Analysis
Waveform data is captured at 130 samples per cycle, exceeding the sampling rate of most substation-based equipment. Waveform uses proprietary, patent-pending algorithms to analyze the high-resolution data and precisely determine the real sub-cycle boundaries of all disturbances. This is essential groundwork for further processing and analysis, and for allowing systematic comparison to known event libraries for diagnosis of the likely cause. Waveform’s high sampling rate gives utilities information on 1st through 11th harmonics. Harmonic content is measured, recorded and made available for analysis in Sentient’s Ample™ Analytics platform. Waveform data can be stored in Ample indeﬁnitely for forensic studies of outages, device failures and proactive maintenance analysis.
Pre-Failure Analysis is Essential to Fault Avoidance
High-resolution oscillography empowers distribution line management by providing insight into the cause of line problems. Insulator leakage, excessive arcing during capacitor switch operations, loose connectors — all cause anomalies that Waveform detects before an actual failure. Waveform analyzes these anomalies and alerts the operator when a likely cause is identified.
Powerful Platform for Advanced Applications
The Waveform app takes advantage of the Sentient MM3’s powerful Linux™-based design that features gigabits of local storage and runs modern Linux-based software applications. This powerful platform enables Waveform to process captured data locally, analyze waveform data and network events — effectively turning raw data in the field into focused, actionable intelligence in the office. This local processing greatly reduces the burden on the communications network by transmitting only key event information, in real time and by exception, while forwarding detailed data only upon operator request or when bandwidth is available.