SCP – Signal Conditioner Membrane/Bag Monitor

SCL – Signal Conditioner Circuit-breaker Coil MonitorThe transformer or power reactor sealing system uses a rubber membrane or bag in conservator expansion tanks to prevent the insulating oil from making contact with outside air. The bagprevents oxygen and humidity contamination, both of which accelerate paper degradation. The bag system also retards oil and dielectric breakdown.

However, membrane or bag leakage may go unnoticed, and long term leakage could contaminate the equipment.  To avoid this risk, the SCPperforms online monitoring for membrane or bag rupture and provides an alarm if oil is detected on the outside of themembrane or bag. This is accomplished with anoptical sensor installed over therubber membrane or inside the rubber bag (outer side).The optical sensor is connected to a control unit on the transformer panel with remote alarm and local signalling in the event of a rupture.

This is an innovation from Treetech’s pioneering experience with the Membrane/Bag  Rupture Relay  MBR currently in operation in hundreds   of units  worldwide.  The SCP comes with several innovative characteristics, which are patent pending:

  • Two wire sensor connection to simplify and reduce installation costs;
  • Control modules monitor one or two rupture sensors, allowing optimal monitoring of large dimension bags or membranes;
  • RS485 serial port with DNP3.0 or Modbus RTU open protocols;
  • Alarm contacts with user programmable operation protocols;
  • Self-diagnostic capability for both the sensor and control module;
  • Universal auxiliary power supply of between 38 and 265  Vdc / Vac, 50 / 60 Hz;
  • Galvanic insulation between inputs, outputs and power supply.

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    Caulfield North,
    3161 VIC, Australia

    Telephone: +61 (0) 430 149 665
    Email: sales@martecassetsolutions.com.au