VideoRay ROV protected by Bender insulation monitoring
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Bender UK Ltd
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16 September 2020
VideoRay is a leader in underwater Remotely Operated Vehicle (ROV) technology, serving the world’s Navies and Coast Guards since 1999. The VideoRay Defender and Pro 5 have seen significant growth in use, especially in military applications. The underwater ROVs help prevent terrorism, find and retrieve objects, inspect infrastructure both inland and offshore, and keep divers safe from hazardous conditions.
VideoRay specialise in one-man, portable and reliable underwater systems. Their vehicles assist in increasingly challenging situations with owners trusting their ROV’s to help them perform in the most demanding environments and missions.
VideoRay utilise Bender insulation monitoring technology to provide continuous monitoring of the ROV power system. The power system for the ROV is isolated and by employing an insulation monitor as part of VideoRay’s control console, the power system and umbilical power cable remain undamaged and safe in the unlikely event of an earth fault. Should excessive current leakage occur Bender’s insulation monitor will detect this, and an alarm will trigger and indicate that the system has experienced a fault, tripping as a result.
The specified ISOMETER® isoRW425 ensures predictive monitoring of the de-energized ungrounded umbilical cable that runs to the ROV. Only the control console is initially energized so the user knows ahead of time if an earth fault issue exists prior to powering the ROV.
This insulation monitoring device is preferred due to its robust performance. It is also used in rail applications where excessive vibration, shock, and movement of the Bender device is required without compromising performance. This feature was popular with VideoRay since the installation is located in a portable operator control console that is moved from one ROV deployment to another and often used in harsh environments.