Arcteq AQ-T257 - Transformer Protection Relay

AQ-T257 is a transformer protection device with a differential protection function and an integrated automatic voltage regulator function.

The relay also provides complete current-based and voltage-based protection functions as well as full measurements.

 
You can add up to nine (9) I/O or communication cards into the device for extensive monitoring and control applications.

 
AQ-T257 communicates using various protocols, including communication according to the IEC 61850 standard.

Highlights:

• A large I/O capacity.
  
• Complete transformer protection.
  
• 2nd and 5th harmonic blocking.
  
• Automatic verification of connection group and nominal value settings
  
• Overloading and through fault statistics for preventative maintenance