V-LIM
Two functionally identical variants for different supply voltages, V-LIM and V-LIM 24V
Accurate monitoring and trending of IR levels over a wide range from 1kΩ to 1GΩ (V-LIM) and 1kΩ to 10GΩ (V-LIM2)
Touchscreen LCD and web interface displays.
Overview
Electrical insulation degrades over time due to harsh environments, moisture ingress, and electrical stress – raising safety risks and causing system instability. The V-LIM product range delivers highly accurate, condition monitoring with continuous measurements of insulation resistance, capacitance, and related parameters, providing a precise real-time view of system health. Using advanced digital signal processing and V-NET Sync technology, V-LIM ensures stability and reliability, even in electrically noisy environments. Compact, configurable, and easy to install, V-LIM supports flexible deployment across industries. Whether embedded, retrofitted, or used as a portable diagnostic unit, it enables proactive maintenance and early fault detection—extending system life and improving safety, and stability under both energised and de-energised conditions make it an ideal choice for safeguarding electrical networks across industries.Â
Choose the right V-LIM
V-LIM has evolved across generations to deliver greater accuracy, usability, and integration flexibility. Use the comparison below to identify the variant best suited to your system.
V-LIMLine Insulation Monitor that provides continuous measurement of insulation resistance, giving early warning of cable degradation. Datasheet > |
PlatformVIPlatformVi is a dedicated subsea asset management tool that centralises electrical integrity data, enabling proactive maintenance, remote device control, and seamless V-LIFE activation. |
CableGuardianCableGuardian encompasses proven technology with extensive industrial heritage in challenging environments. |
V-LIFEV-LIFE prevents and recovers faults on subsea system cables. The V-LIFE effect is achieved by applying a low-voltage passivation signal to the faulty line. |
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More About V-LIM Features & Technology
The V-LIM range has been developed to deliver high-precision electrical monitoring for modern, mission-critical systems. Designed for total lifecycle visibility, V-LIM continuously tracks insulation resistance up to 10 GΩ (V-LIM2) to identify degradation trends long before faults occur. This empowers operators to take preventative action, reducing operational risk and costly unplanned repairs.Â
Each device incorporates advanced digital signal processing (DSP) for accuracy, V-NET Sync to minimise electrical noise and crosstalk, and a touchscreen LCD interface for instant access to live and logged data. Configurable alarms and relays alert operators to changing system conditions, while USB and optional network connectivity make data export and remote support simple.Â
When integrated with PlatformVi, data can be analysed across fleets or facilities, providing predictive insights and automated alerts. Fully V-LIFE Ready, V-LIM enables remote insulation recovery and enhanced protection in the event of degradation. Compact, robust, and adaptable, the V-LIM product range represents the next generation of intelligent electrical condition monitoring.Â
Resources
Find answers to common questions about the V-LIM product and its applications.
Product Literature
FAQs
Our Solutions
Viper’s Complete Solutions
Integrated intelligence for electrical integrity across every industry.Â
Viper Innovations delivers a connected suite of technologies that together manage the full electrical system lifecycle:Â
- Electrical Cable Monitoring – Real-time insulation resistance condition monitoring to detect degradation early and maintain safety.Â
- Analytics for Preventative Insights – Transforming data into actionable intelligence for predictive maintenance.Â
- Detection & Location of Electrical Faults – Locating faults quickly and safely using advanced SSTDR diagnostics.Â
- Protection for Failing Electrical Systems (V-LIFE) – Remote activation technology that prevents and protects against degradation.Â
- Maximise System Life – Lifecycle management approach combining monitoring, analytics, protection, and predictive insight.Â
Each solution integrates seamlessly, giving operators the ability to Monitor, Assess, Prevent, Protect, and Extend system life—across any sector or environment.Â
Our Solutions
Viper’s Subsea Oil & Gas Solutions
Viper’s technology was pioneered in the subsea oil & gas industry – where safety, uptime, and reliability are paramount. Electrical degradation doesn’t have to lead to downtime. By installing V-LIM or V-LIM2, operators gain continuous visibility of insulation health and the ability to activate V-LIFE, the world’s only intervention-free subsea electrical protection technology.Â
Together with PlatformVi, operators can assess real-time data trends, receive predictive alerts, and trigger remote insulation protection when required. These connected, intelligent systems eliminate the need for costly subsea intervention, ensuring operational safety and continuity.Â
Trusted by more than 40 global operators across 20+ countries, Viper’s subsea solutions—built around the principles of Safe, Monitor, Assess, Prevent, Protect, have been proven to extend the life of critical systems while reducing risk, cost, and environmental impact.Â
Applications
V-LIM technology can support any sector where electrical integrity matters
Renewable Energy
Industrial Automation
Healthcare Facilities
Aerospace & Defence
Marine & Shipping
EV Charging Infrastructure
Case Study
V-LIFE Insulation Resistance Recovery
Designed to recover the electrical integrity of failing subsea circuits.
The most common cause of subsea electrical failures is the ingress of water into the cable insulation, which decreases the insulation resistance (IR) and may produce short circuits or leakage to earth. These faults often lead to loss of power, operability and production of the subsea system.
If you are experiencing low IR, a timely decision is essential, as ignoring the issue may result in expensive subsea fault-finding interventions and the replacement of cables, equipment and umbilicals; not to mention a very real risk of electric shock.