Transformer Protection Relay TR-7570 Family

Salient features :

  • Four channel scanner to monitor temperature of 3 phase windings and 1 core of the transformer.
  • Temperature indication range : – 50 to 300 °C.
  • Four relay outputs for Fault, High (Alarm), Very High (Trip) & Fan Control.
  • Common Alarm / Trip / Fan temp. settings for 3 channels of winding are fully adjustable over entire range For core temp. monitoring separate trip setting can be made.
  • 4-20mA and / or RS-485 output for remote temperature indication / SCADA application (view options).
  • Aux. Supply : 85-270 VAC/DC (20-50 VAC/DC on demand).