V-LIM Electrical Line Integrity Monitoring Module.

Providing Accurate Electrical Integrity Data

Over a Wide Range of Insulation Resistance Levels

Specifically designed to address the demands of the Oil & Gas sector, the V-LIM is an accurate and precise electrical cable integrity. It supports you through the system lifecycle: proactive maintenance on greenfields, informed decision making on brownfields, and prolonging the life of degraded cables through the use of V-LIFE. Two V-LIM product generations are available:

V-LIM:  Advanced IR monitoring for topside systems, delivering real-time visibility, early fault detection, and exceptional accuracy.

V-LIM2: The latest generation, designed to support analysis and automation. Enhanced monitoring capabilities and an intuitive interface for streamlined decision-making.

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Proven in Field Operation

Precise and Accurate Electrical Cable Integrity Monitor.

Long term operation and exposure to harsh environmental conditions causes insulation degradation in cables and other electrical equipment over time. With its precise and accurate measurements of Insulation Resistance, Capacitance and other advanced electrical parameters, V-LIM not only provides a better picture of the health of the system over time, but also provides opportunities to identify problems before they arise. This allows proactive and more cost effective intervention to be undertaken based on risk and asset condition assessments rather than relying on reaction to failures after they have occurred.

The V-LIM unit employs Digital Signal Processing techniques which facilitate trending and characterisation of the system condition with reliable fault disclosure over a wide measurement range.

V-LIM has two independently adjustable alarms and relay contacts set to predefined user-configurable thresholds. When the V-LIM detects that the IR has fallen below the thresholds, the alarms activate, and the relays operate. V-LIM offers an overall system condition as a standalone unit which can be interrogated using the module’s touch LCD panel, or downloaded easily via USB Ports.

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Our Next Generation Monitor: V-LIM2 

V-LIM2 is our latest generation technology, designed to support analysis and automation. It includes all of the current capabilities of V-LIM, with enhanced IR monitoring range, power monitoring capability and an improved intuitive interface for streamlined decision-making. 

Our customers can easily upgrade from V-LIM or other panel-mounted IMD Installations to V-LIM2.

Whether for greenfield projects or aging brownfield assets, V-LIM2 is built to meet the evolving needs of the industry. Combined with PlatformVi, Viper’s intuitive data platform, operators can monitor trends, and make informed decisions quickly, such as enabling automated IR recovery through remote V-LIFE activation.  

Intelligence Installed: Viper Innovations' Subsea Solutions deliver a state-of-the-art technology ecosystem designed to safeguard subsea cable integrity

Be V-LIFE Ready

Prevent Cable Failures, Protect Operations  

In subsea energy operations, unplanned downtime is costly and disruptive. Cable faults, such as water ingress or declining insulation resistance (IR), jeopardise reliability, safety, and profitability. Why wait for failures when they can be prevented?

With our advanced line insulation monitor V-LIM or next-gen product V-LIM2, or our subsea V-SLIM monitors already installed, V-LIFE, a preventative and protective ‘healing’ solution for low IR in umbilical cables, can be activated quickly, restoring system health before system failure. This is the essence of being V-LIFE ready: always prepared, with a solution ready to protect your operations.

To discover more about how to make your system V-LIFE Ready or view our Subsea Solutions Brochure.

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Product Features.

  • Two functionally identical variants for different supply voltages, V-LIM and V-LIM 24V
  • Two separately configurable alarms with associated relay contacts to take desired action
  • Timestamped measurement data is logged to internal memory
  • Touchscreen LCD and web interface displays
  • Ethernet, RS485 and 4-20mA interfaces
  • Upload firmware and configuration settings from front panel USB interfaces via memory stick or service PC
  • Download data log to memory stick or service PC
  • Compatible with temporary application of external IR test unit without physical disconnection of V-LIM
  • Multiple user security levels supported for secure access
  • Facility to disconnect the V-LIM from the line monitored
  • Cross talk immunity option. Enables multiple units to take accurate simultaneous measurements on adjacent cables. This option is also known as V-Net® Sync
  • Coupler Module connection capability for voltage <1kV
  • Built-in self-test

Additional features include:

  • V-LIFE® cable remediation technology
  • V-SLIM® integration for V-IR network condition
    monitoring
  • V-LIFE® — Award-winning cable rejuvenation technology
  • Two power supply input options, AC and DC, provided in a single variant
  • Two separately configurable alarms with associated relay contacts to take desired action
  • Timestamped measurement data is logged to internal memory
  • High-resolution LCD touchscreen and web interface displays
  • Ethernet, RS485 and 4-20mA interfaces
  • Upload firmware and configuration settings from front panel USB interfaces via memory stick or service PC
  • Download data log to memory stick or service PC
  • Compatible with temporary application of external IR test unit without physical disconnection of V-LIM2
  • Multiple user security levels supported for secure access
  • Facility to disconnect the V-LIM2 from the line monitored
  • Cross-coupling immunity provided by V-NET® Sync feature, enabling multiple V-LIM2 units to take accurate simultaneous measurements on adjacent cables by eliminating affects of cross-coupled electrical noise
  • Coupler Module connection capability for voltage >1kV
  • Built-in self-test and facility to allow testing of IR indicating interfaces
  • Power monitoring capability using split line current transformer accessory
  • V-LIFE ready – increases IR without subsea intervention
  • Accurate monitoring and trending of IR levels over a wide range from 1kΩ to 1GΩ (V-LIM) and 1kΩ to 10GΩ (V-LIM2)
  • Monitors Insulation Capacitance up to 150µF
  • Multiple power supply options
  • Interface modules allow for easy replacement of legacy equipment
  • Significantly reduces levels of copper loss compared to competing insulation monitoring devices (IMDs). Reduced further when V-LIFE is active
  • Electro-Hydraulic Subsea Production Control Systems
  • Mission critical IT (unearthed) electrical distribution systems