VisNet® Hub
Smarter LV network decisions start here
The VisNet® Hub is an innovative, award-winning LV monitoring system, providing unrivalled network visibility to support proactive fault detection and network management.
The cornerstone of our full-stack LV Network ecosystem
The Hub is the foundation of VisNet’s low voltage (LV) monitoring ecosystem. Installed in ground-mounted substations it is designed to give network operators immediate, scalable visibility of their LV networks to support operations, planning and asset management with data-driven decision making.
At its core, the VisNet Hub delivers robust, high-resolution monitoring straight out of the box. It captures essential electrical parameters including RMS voltage and current (per phase, including neutral), active, reactive and apparent power, total energy, total harmonic distortion (THD), as well as maximum and minimum voltage values over the displayed reporting period. With time series data typically recorded at 10 or 30-minute intervals, the Hub provides a reliable baseline of network performance.
The Hub’s functionality enables operators to move from reactive, assumption-based planning to evidence-led decision making. With clear visibility of voltage profiles, load behaviour, and phase imbalance. Amongst others, engineers can quickly identify emerging issues such as voltage violations, thermal constraints, or poor power quality, often before they impact customers.
Harnessing the power of our Low Voltage Common Application Platform (LV-CAP®) operating system, the Hub transforms grid-edge data into actionable insights. This is achieved through an expanding suite of applications, all seamlessly shown via our intuitive VisNet Detect Pro interface.
These grid-edge insights allow Network Operators to deal with immediate operational issues such as faults and pre-faults and their location, it also allows the user to anticipate future planning requirements and provides key asset health information for reinforcement or replacement strategies.
The Hub has an array of input/output connectivity options, whether for voltage and current sensors or third-party interfaces, thus providing a capability and flexibility that is rarely seen in this type of monitoring system.
In addition, it supports the ALVIN Reclose2 auto recloser as a plug-and-play device to further enhance your network monitoring and visibility capabilities.
This ground-breaking LV monitoring device was awarded the King’s Award for Enterprise 2024 in the Innovation category.
Whether deployed as a standalone monitoring solution or as the backbone of a fully integrated smart network, the VisNet Hub provides the visibility, flexibility, and intelligence required to operate modern LV networks with confidence.
VisNet® have great products and services, with very good technical advice. I found the team approachable; they listen to customers and provide continuous innovation to meet their needs."
Gary MacDonald, Senior Project Engineer
SP Energy Networks
Features & Benefits
VisNet® Hub Features
- Real-time monitoring capturing voltage and current at 16,000 times a second
- Monitors & measures up to 6 LV Circuits (3ph & N)
- Self Powered
- Suitable for live installation
- 4G and Ethernet Communication
- User Interface via Web Application
- Communications hub for additional equipment and sensors
- LV-CAP® works in conjunction with the Management Server to provide device management, updates and configuration.
VisNet® App Suite Features
- Fuse blow + pre-fault detection
- Fault location
- Cable condition
- Reverse Power
- Overloads (long term & short term)
- High Volts & Low Volts
- Transformer Temperature
- Power Quality (Total Harmonic Distortion)
- Remote, over the air updates
VisNet® Detect Pro - User Interface Features
- The user interface - Detect Pro provides the necessary visualisation required to manage your fleet of VisNet® Hubs.
- Geographical representation of equipment status
- Dashboard display for Alarms and Events
- Historical views of previous Alarms and Events status
- Search and filter functionality
- Add configurable access levels and authentication for security and peace of mind
Powering Your Network Insight
Access market-leading grid-edge intelligence with a full stack LV monitoring platform and grid-edge intelligence ecosystem
Deploy across your LV Network
Stay ahead of demand with future-proof capacity insight
Receive available headroom by feeder and phase to allow you to connect more Low Carbon Technologies to the existing network faster
Pinpoint faults with intelligent analytics
Capture advanced data to achieve world-class fault and pre-fault management
Intelligence from the grid-edge with the VisNet® Hub and App Suites
Make your VisNet® Hub work harder for you with our compatible software
Visualise your VisNet® data
Detect Pro
Visualise grid-edge intelligence and manage your fleet of ALVIN® Reclose² units.
Substation360
App Overview
Remarkable Apps for Reliable Networks: get enhanced network insights with VisNet® Apps.
Intelligently detect and fix faults with VisNet's hardware products
VisNet® View
Receive grid-edge intelligence from your overhead LV networks with the Visnet View hardware, specifically designed for pole-mounted transformers and associated feeders.
ALVIN® Reclose2
Manage intermittent faults and enable effective management and supply restoration on low voltage networks.
Temperature Sensor
Monitor real-time thermal information of critical LV substation components with VisNet® Temperature Sensor
FAQs
Q: How does a low voltage monitoring system detect problems?
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Q: What kind of alerts can I expect?
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Q: Can I access my system remotely?
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Q: How difficult is it to install a low voltage monitoring system?
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Q: What kind of sensors are typically used?
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Q: What are the benefits of using a low voltage monitoring system?
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Q: How much does a low voltage monitoring system cost?
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Q: What kind of support is available if I have problems?
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Why work with VisNet®?
VisNet® has a suite of monitoring solutions, designed to provide smart intelligence for successful network operation, planning and analytics.
Homes and businesses protected by VisNet monitoring solutions
Circuits protected through 32,000+ VisNet Hub and Guard devices in the field providing powerful insights
VisNet® are innovative and always keep moving.
Keep up the good work.
Dave Phillips, Engineering Specialist National Grid Electricity Distribution
VisNet® have great products and services, with very good technical advice. I found the team approachable; they listen to customers and provide continuous innovation to meet their needs.
Gary MacDonald, Senior Project Engineer SP Energy Networks
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Frequently Asked Questions
Product Overview & Core Capabilities
What is the VisNet Hub?
Situated in ground-mounted substations, the VisNet Hub is an intelligent low voltage (LV) network monitoring device designed for owners and operators of electrical networks. Working with a range of VisNet Apps, it provides real-time data, analytics, and edge computing capabilities to improve grid visibility and enable smarter network management. These applications support insights into areas such as network capacity, quality of supply, and reliability.
VisNet Apps & Grid-Edge Intelligence
What are VisNet Apps?
VisNet Apps are software modules that typically run on the VisNet Hub and VisNet View. They enable specific monitoring, analytics or grid management functions, such as fault and pre-fault detection, constraint management, or power quality analysis, without needing new physical equipment.
Find out more about the VisNet Apps
Why is LV monitoring and grid-edge intelligence important?
Low voltage networks are experiencing increasing demand from EV chargers, heat pumps, solar PV, and battery storage. LV monitoring and the additional grid-edge intelligence provided by the VisNet Apps supplies the real-time data required to manage this demand safely, avoid reinforcement where possible, and enable net zero ambitions.
A key part of this capability is the edge computing within the VisNet Hub. The device analyses high-speed electrical measurements locally to detect rapid changes in network behaviors such as emerging faults, pre-fault conditions or power quality disturbances that require fast sampling and processing. By performing this analysis at the edge, the system can identify which events and insights are most important and only transmit the relevant data to the cloud. This reduces unnecessary data traffic while ensuring that critical network events are captured and acted upon quickly.
For water utilities and industrial operators, this same visibility and intelligence strengthens operational resilience. By continuously monitoring power quality, loading, faults and pre-fault conditions, the VisNet Hub helps protect critical infrastructure, reduce unplanned downtime, safeguard process continuity, and ensure reliable operation of essential assets such as pumps, motors and treatment facilities.
Can data be analysed at the grid-edge?
Yes. The Hub supports edge computing, allowing certain analytics and applications to run locally, reducing latency and bandwidth usage.
LV Network Visibility & Performance
How does the VisNet Hub improve LV network visibility?
By capturing granular data at substation and feeder level, the VisNet Hub provides enhanced visibility of network constraints, voltage issues, loading, and real-time faults and pre-faults. This enables data-driven planning and operational decision-making.
What type of data does the VisNet Hub collect?
The Hub captures high-resolution electrical measurements from the low voltage network, including voltage and current per phase, as well as power quality indicators such as harmonics and voltage imbalance. It can also monitor external parameters such as temperature where sensors are connected.
These measurements provide the foundation for VisNet analytics applications, which derive insights such as network loading, emerging faults, asset health indicators and other operational metrics.
Does the VisNet Hub provide real-time data?
Yes. The Hub supports real-time data transmission and edge processing to enable faster operational decisions.
Does the VisNet Hub help manage voltage issues?
Yes. The device continuously monitors voltage levels and identifies compliance risks, enabling proactive intervention before customer complaints occur.
How do I view the actionable insights delivered by the VisNet Hub
Actionable insights from the VisNet Hub are accessed through Detect Pro, EA Technology’s secure, web-based user interface.
Detect Pro converts raw LV network data into clear, prioritised alerts and dashboards, highlighting issues such as emerging faults, voltage non-compliance, overload risks and power quality events. Users can drill down to substation and feeder level, review trends, and export reports to support operational and planning decisions.
The interface is designed to make grid-edge intelligence simple, accessible and actionable for DNOs, water utilities and industrial operators.
Critical alerts can also be delivered directly to users via email or messaging notifications, ensuring that important network events are brought to operators’ attention quickly. Where required, event data and alarms can also be integrated into external systems, allowing VisNet intelligence to feed directly into existing asset management and network operation workflows.
Capacity, Net Zero & Flexibility
How does the VisNet Hub support EV and heat pump connections?
By providing accurate visibility of transformer and feeder capacity, the VisNet Hub enables owners and operators of electrical networks across the globe to assess headroom more confidently and accelerate low carbon technology connections without unnecessary reinforcement.
By combining the VisNet Hub with the VisNet Capacity Apps, you can unlock up to an additional 22% capacity on your network.
Can the VisNet Hub reduce network reinforcement costs?
Yes. With improved visibility of actual network loading and constraints, operators can defer or avoid capital reinforcement by making better use of existing assets.
Can the VisNet Hub support flexibility markets?
Yes. By providing accurate constraint and headroom data, the Hub supports flexibility planning and constraint management strategies.
Integration, Connectivity & IoT
Is the VisNet Hub an IoT gateway?
Yes. The VisNet Hub acts as an Industrial IoT (IIoT) gateway, connecting sensors, monitors and external devices. It supports multiple inputs and communication protocols, allowing utilities to integrate additional monitoring applications and third-party technologies.
Can the VisNet Hub integrate with existing systems?
Yes. The Hub supports integration with DNO back-office systems, data platforms, and operational tools via APIs and secure data export mechanisms.
How scalable is the VisNet solution?
The VisNet architecture is designed for fleet-scale deployment across thousands of substations, with centralised device management and analytics capability.
Installation, Support & Lifecycle
Where is the VisNet Hub installed?
The VisNet Hub is installed in ground-mounted substations on the low voltage network. It can also be used in water pumping stations and selected areas in manufacturing sites, hospitals, airports, ports, and the rail network, thus supporting resilient networks across the globe.
Is EA Technology able to provide support with installation?
Yes. Installations can be carried out by your own team of installers, those from EA Technology, or EA Technology-approved third parties.
What support is provided after installation?
EA Technology provides commissioning support, ongoing technical assistance, firmware updates, and system optimisation guidance.
Security, Compliance & Manufacturing
Is the VisNet Hub secure?
Yes. Cybersecurity is embedded in the device architecture, including encrypted communications, secure authentication, and controlled remote access aligned with utility standards.
Is the VisNet Hub compliant with industry standards?
The device is designed to meet relevant utility and industrial standards. Detailed compliance documentation can be provided upon request.
How is the equipment manufactured?
The VisNet Hub is manufactured through a secure supply chain, largely based in the UK, ensuring quality assurance and resilience.
