AQ-T256 is a transformer protection device with sophisticated and easy-to-use differential protection functions. The relay provides overcurrent protection for both low-voltage and high-voltage sides, earth fault protection, negative sequence overcurrent protection as well as two independent instances of restricted earth fault protection. You can add up to ten (10) I/O or communication cards into the device for extensive monitoring and control applications. AQ-T256 is a transformer protection device with a sophisticated and easy-to-use differential protection function. communicates using various protocols, including the IEC 61850 substation communication standard.
A large I/O capacity.
Both predefined and customizable connection group selection.
2nd and 5th harmonic blocking.
Automatic verification of connection group and nominal value settings.
Overloading and through fault statistics for preventive maintenance.
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