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Ballistics delivery systems from Guardian Global Technologies

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> Voltage Sensing Switch

The Voltage Sensing Switch (VSS) is designed to prevent a short circuit, below the VSS tool, caused by power going to ground and preventing operation of a Guardian Ballistics Delivery System.  This would generally happen after a gun has been fired.

The VSS is generally set up to allow any positive voltage (Guardian Ballistics Delivery System tools operate on -82vdc) applied to its upper head to pass through while any negative voltage is blocked until it reaches -130vdc. If more than -130vdc is applied it will pass through the tool.  If required it can be set up to block positive voltage and by pass negative.
Product Features
  • Is configurable to work with multiple detonators including:
  •             Igniters
  •             Standard 50 ohm resistorised dets
  •             Halliburton Red dets
  •             EBW/EFI dets such as PX1 and Secure
  • Allows bypass of power for operation of tools and or guns below the VSS
Product Applications
  • Perforating operations
  • Any operation where the application of negative power to the toolstring below would not be suitable

Voltage Sensing Switch
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