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 Tranformers
• Smart Grid Temperature Monitoring
• EMI, RFI and Microwave Environments
• Nuclear and Hazardous Environments
• Multi-point long-term monitoring