ORION Temperature Control & Protection Relay ( TR42 )
The TR42 has been created as an accessory of main importance for resin or air insulated three-phase MT transformers, to control and monitor temperatures on the insulating coil, on the winding and to manage the intervention of cooling fans. The temperature is detected by 3 or 4 thermal detectors PT 100, three of them located in the transformer coils, the fourth on the core
FEATURES
◐ Display of the actual temperature of the 4 PT sensors.
◐ Display & storage of the highest temperature of each PT sensor.
◐ 5 programmable output contacts ( 2 for FAN control , 2 for temperature, 1 for fault )
◐ Automatic and “Always ON” fan mode.
◐ Alarm of device failure or PT 100 disconnection or short circuit.
◐ Automatic fan start every week (bearing protections).
◐ Insulated RS-485 communication port.
◐ Insulated 4-20mA output (Optional).
OPTIONAL FEATURES
◐ 4-20mA Analog Output
◐ Acoustic signalization on L1 level
◐ Ethernet communication ( refer catalogue for TR42E series )
ORDER CODE
Download
◎ TR42CMW5
◎ TR42E( Ethernet communication )
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