LumaSHIELD^®

Key Features

• Up to 16 measurement channels
• Total system accuracy (± 0.8 °C)
• Internal reference to guarantee reliability
• No drift, no calibration required
• IEC 61850 compliant
• Light source lasts the life of the transformer
• Local and remote data acquisition
• RS-232, RS-485 and Ethernet1 output with SCPI, Modbus, DNP3 protocols
• Relays and analog output options available
• LCD display with user-definable description for each optical channel
• Use with LumaSense Gallium Arsenide (GaAs) Semiconductor Band Gap (SCBG) fiber optic temperature sensors

Details

The LumaSHIELD®, designed for Smart Grid integration, is fitted with an internal reference that allows regular self-verification and correction of its fully traceable calibration. The internal reference provides long- term accuracy in the adverse conditions encountered in a distribution transformer environment, such as temperature variations, component aging, mechanical shocks and transformer vibrations.

The LumaSHIELD® is equipped with a simple LCD display. Communication options include IEC61850/Ethernet¹, DNP3/Ethernet¹, SCPI and Modbus over RS-232 or RS-485 interface. SPDT-type relays and analog outputs (one per optical channel) are optionally available. A PLC controller is also available to offer extended control capabilities through a wide range of input/outputs.

The LumaSHIELD® has a channel sampling rate of 50 Hz. It is used with standard 62.5/125 micron optical fiber temperature sensors (The LumaSense OTG-T /OTG-TC2 sensors). It also has the ability to read Neoptix, Fiso and Nortech fiber optics. A version is available for 200/230 micron optical fiber sensor models, as well.

¹Ethernet for IEC61850 or DNP3 communication

Typical Applications

• Distribution Transformers and Small Power Transformers
• Smart Grid Temperature Monitoring
• EMI, RFI and Microwave Environments
• Nuclear and Hazardous Environments
• Multi-point long-term monitoring