Neoptix Inc., Quebec City, QC, Canada, offers the T/Guard Link that works with the company's fiber-optic temperature probes and sensors to monitor for transformer hot spots in small and medium-sized dry-type or oil-filled power transformers. The system is available with 1–8 optical channels and can be ordered with RS-232, RS-485, Modbus, DNP 3.0, or Ethernet serial bridge communication links. It also provides a 4–20 mA analog output for each channel. The system can be installed into any size of transformer control cabinet or, alternatively, it can be ordered with a NEMA 4-rated protective enclosure for stand-alone mounting on the transformer tank wall.
Transformer Monitoring System from Neoptix